TEN-YEAR GAS TRANSMISSION NETWORK DEVELOPMENT PLAN FOR THE 2018 2027 PERIOD

TEN-YEAR GAS TRANSMISSION NETWORK DEVELOPMENT PLAN FOR THE 2018 2027 PERIOD

TEN-YEAR GAS TRANSMISSION NETWORK DEVELOPMENT PLAN FOR THE 2018 2027 PERIOD

Plinovodi d.o.o, Cesta Ljubljanske brigade 11b, PO box 3720, 1001 Ljubljana; Tel.: +386 (0)1 582 07 00 Fax: +386 (0) 1 582 07 01; Email: info@plinovodi.si; VAT Reg No: SI31378285 TEN-YEAR GAS TRANSMISSION NETWORK DEVELOPMENT PLAN FOR THE 2018 − 2027 PERIOD September 2017

TEN-YEAR GAS TRANSMISSION NETWORK DEVELOPMENT PLAN FOR THE 2018 2027 PERIOD

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 2 TABLE OF CONTENTS Preface . . 3 Summary . . 4 Introduction . . 5 1 Definitions . . 6 2 Consultations . . 6 2.1 TSO's consultations with stakeholders . 6 2.2 Activities of the Energy Agency in relation to network development . 6 3 Supply and demand for transmission capacity of Slovenian natural gas transmission system and natural gas supply . . 7 3.1 Current situation of the natural gas transmission system . 7 3.2 Domestic market . 8 3.2.1 Supply of natural gas to Slovenia and access to natural gas sources . . 8 3.2.2 Slovenian Energy Concept − orientations . . 9 3.2.3 Existing supply of transmission capacity as of 1 January 2017 . . 10 3.2.4 Infrastructure standard and compliance with Regulation 994/2010/EU . . 12 3.2.5 Supply and demand for transmission capacity – territorial coverage . . 15 3.2.6 Comparison of the role of natural gas in Slovenia and Europe . . 17 3.2.7 Natural gas consumption in the country in the 2008 – 2016 period . . 20 3.2.8 Demand and anticipated supply of transmission capacity . . 21 3.2.9 Forecast of natural gas consumption and booking of transmission capacity for the 2018 – 2027 period . . 24 3.3 Cross-border transmission capacity and booking . 26 3.3.1 Demand for booking at cross-border interconnection points . . 27 3.3.2 Booking of transmission capacity at cross-border interconnection points in 2016 . . 28 3.3.3 Booking forecast and estimates . . 31 4 Set of planned gas infrastructure for the 2018 − 2027 period . . 34 4.1 Projects to increase operational security . 34 4.1.1 "Management Centre" project . . 36 4.2 Connection projects . 38 4.3 Development of interconnection points with the neighbouring transmission systems . 41 4.4 Projects in preparation and planning in the 2018 − 2020 period and projects in implementation . 45 4.5 Assessment of options for the increase of energy efficiency . 47 5 European dimension of natural gas supply . . 50 5.1 Development of exchanges with other countries . 50 5.2 Supply of natural gas to EU countries and access to natural gas sources . 51 5.3 REGULATION (EU) No. 347/2013 on guidelines for trans-European energy infrastructure . 52 5.3.1 PCI 2015 list . . 53 5.4 ENTSOG . 54 5.4.1 TYNDP . . 55 5.4.2 GRIP CEE and GRIP Southern Corridor . . 56 ANNEXES . . 57 Abbreviations . . 77

TEN-YEAR GAS TRANSMISSION NETWORK DEVELOPMENT PLAN FOR THE 2018 2027 PERIOD

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 3 Preface This is the material of the tenth Gas Transmission Network Development Plan for the ten-year period, for the 2018 – 2027 period. It was developed in coordination with the European Network of Transmission System Operators for Gas (ENTSOG) and in the process of two regional development plans. Moreover, we are considering the development of neighbouring transmission systems and neighbouring gas markets, we pay special attention to the domestic gas market, the development of natural gas consumption in the country, and thus the necessary development of the transmission system. Moreover, we are continuing with the in-depth analyses of natural gas consumption in the future.

The gas market is becoming more and more dynamic and insecure, natural gas flows in the transmission system and the natural gas consumption show growth, while the directions of natural gas flows have become increasingly unpredictable. We have recently used the term "dynamic market" only to describe the growing number of transmission contracts concluded for periods that began to shorten, and now this concept has expanded to all areas of our operations. The vibrancy of the market affects the scope of our work, business operations, and the planning of what the transmission system needs for its operation.

The concern for reliable, safe and economical operation of the transmission system is at the forefront and properly covered in this document. We have analysed the presented projects, prioritised them and determined their implementation time line, using the prescribed procedures and tools. Our guiding principles were our assessments of the role and opportunities of natural gas as an environmentally- friendly energy product at the national level and in individual areas of the country. Marjan Eberlinc General Manager Sarah Jezernik Deputy General Manager

TEN-YEAR GAS TRANSMISSION NETWORK DEVELOPMENT PLAN FOR THE 2018 2027 PERIOD

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 4 Summary The Slovenian gas transmission system is part of the energy infrastructure of national importance that is present in 108 of the total 212 Slovenian municipalities. In the energy balance sheet of the Republic of Slovenia for the year 2016 it was estimated that in the final energy consumption structure the share of petroleum products will stand out with 46.5%, followed by electricity with 22.5%, renewable energy sources with 13.8%, natural gas with 12.1%, heat with 3.7%, industrial waste with 0.8% and solid fuels with 0.7%. As an energy product, compared to the European average, natural gas has a much more modest representation in the national energy balance sheet, with the exception of industrial consumers sector.

The transmission system operator (TSO) measures the demand for natural gas transmission in the domestic energy market based on queries, approvals issued and connection contracts concluded with distribution system operators (DSO), industrial users and electricity producers. In 2016, there were 54 queries, 7 approvals for connection were issued and 4 connection contracts were concluded. Regarding the purpose of the gas projects in relation to security updates, development of domestic gas market and harmonisation with international projects, the TSO breaks down the planned infrastructure into 3 groups. Group A contains 18 projects to increase operational security, i.e. loops and adjustments to the pipeline system due to settlement and other circumstances. Group B contains 58 connections. Group C contains 17 projects for the development of interconnection points with the transmission systems of neighbouring countries, which include 4 projects that have been listed as projects of common interest in November 2015 by the European Commission. Regarding the achieved maturity of individual projects, the TSO estimates that it will implement (construct or begin construction on) 18 pipeline projects in the three-year period of 2018 − 2020, 8 of them planned.

TEN-YEAR GAS TRANSMISSION NETWORK DEVELOPMENT PLAN FOR THE 2018 2027 PERIOD

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 5 Introduction As the TSO in the Republic of Slovenia, the company Plinovodi is obliged in accordance with the provisions of the Energy Act (EZ-1)1 to adopt and submit for confirmation to the Energy Agency a 10- year network development plan every year after consulting the relevant stakeholders. The plan must be based on the existing and expected supply and demand and include efficient measures in order to guarantee the adequacy of the system and the security of supply.

The purpose of the Ten-Year Gas Transmission Network Development Plan for the 2018 – 2027 Period (hereinafter: Development Plan) is to:  Determine the main infrastructure for transmission that is to be built and upgraded over the next years for players on the market,  Contain all the investments that have already been decided and identify new investments that have to be carried out within the next three years,  Provide a time frame for all investment projects. When preparing the development plan, the TSO has formed reasonable assumptions on the development of production, consumption within the domestic energy market and exchanges with other countries. It has taken into account the investment plans for regional networks and EU-wide networks as well as investments for the natural gas storage facilities and liquefied natural gas (LNG) re- gasification facilities.

1 Official Gazette of RS, Nos. 17/2014, 81/2015

TEN-YEAR GAS TRANSMISSION NETWORK DEVELOPMENT PLAN FOR THE 2018 2027 PERIOD

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 6 1 Definitions Unless the meaning of an expression is otherwise defined in an individual section of the development plan, the expressions and units of measurement used have the same meaning as defined in the applicable legislation. 2 Consultations 2.1 TSO's consultations with stakeholders Between 6 April and 1 May 2017, the TSO published a draft of the development plan on its website. Within the public consultation procedure, it has invited all interested public representatives to present comments, suggestions or additions to the draft. During the public consultation process, which lasted for one month, it has received 4 responses. It has researched all of the responses, taken them into account and explained the reasoning to the interested public. All neighbouring TSOs have also been notified of the development plan draft beforehand, and we have received 2 responses. 2.2 Activities of the Energy Agency in relation to network development The Energy Agency carried out a consultation procedure with all actual and potential system users by publishing the development plan on its website and inviting them to submit their remarks. The consultation procedure was concluded on 10 July 2017.

TEN-YEAR GAS TRANSMISSION NETWORK DEVELOPMENT PLAN FOR THE 2018 2027 PERIOD

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 7 3 Supply and demand for transmission capacity of Slovenian natural gas transmission system and natural gas supply 3.1 Current situation of the natural gas transmission system In terms of flows of natural gas in Europe, the geographic position of Slovenia is fairly favourable. It is in close proximity to the transmission routes from north eastern Europe (from Russia through Slovakia and Austria towards Italy and Croatia) and bordering on Italy, where the transmission routes from the Mediterranean Basin and northern Europe converge. Moreover, the Slovenian system is in the vicinity of the existent and newly planned LNG terminals in the Adriatic Sea.

The Slovenian gas transmission system comprises 1,156km of pipelines, two compressor stations in Kidričevo and Ajdovščina, and 245 metering and regulation stations or other stations. At key points, the gas transmission system is equipped with devices through which the system can be controlled and maintained. The remote control and monitoring functions are carried out by means of an information and telemetry system. Table 1. Main infrastructure – gas transmission pipelines by pipeline diameter and other facilities and equipment Infrastructure Status as of 1 January 2017 Gas network Total 1,156km Pipelines with a diameter of 800mm 167km Pipelines with a diameter of 500mm 162km Pipelines with a diameter of 400mm 197km Other pipelines of smaller diameters 629km Facilities and equipment Compressor stations, total power CS Kidričevo 10.5MW, CS Ajdovščina 9MW Cross-border stations Ceršak, Rogatec, Šempeter pri Gorici Table 2. Gas transmission network – high and low pressure (as of 1 January 2017) Pressure Low pressure (16 bar) Total Horizontal length (km) 210.9 944.9 1,155.8 Percentage (%) 18 82 100 The gas transmission system connects most of the industrial and urban centres in Slovenia, with the exception of the Obalno-kraška region, Bela Krajina and part of Inner and Lower Carniola. The gas transmission system is controlled and monitored from the dispatch centre that is connected to the dispatch centres of transmission systems operators of neighbouring countries, as well as to distribution network operators and major consumers of natural gas.

A major part of the existing gas transmission network is older than 30 years.

TEN-YEAR GAS TRANSMISSION NETWORK DEVELOPMENT PLAN FOR THE 2018 2027 PERIOD

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 8 Table 3. Gas transmission network − age structure (as of 1 January 2017) Age less than 10 years between 10 and 20 years between 20 and 30 years more than 30 years Horizontal length (km) 204.9 16.6 235.8 698.5 Percentage (%) 18 2 20 60 Figure 1. Gas transmission network in January 2017 The Slovenian natural gas transmission system began its operations in 1978, and was then gradually expanded and upgraded. In 2014, the last major investment cycle was completed with the construction of a pipeline from the Austrian border at Ceršak to Vodice near Ljubljana. In addition to providing additional necessary transmission capacities, the safety and reliability of the transmission system operation were improved. With regular inspections and regular maintenance work, the company Plinovodi d.o.o. as a transmission system operator ensures safe and reliable operation of the transmission system. The status of transmission pipelines is regularly monitored by supervising pipeline routes, by performing internal inspections of gas pipes, by using various methods of external gas pipeline inspection, and by constantly monitoring the operational parameters via the central control system. With the cathodic protection system, transmission pipelines are protected against the development of corrosion damage. Based on preventive inspections and maintenance work, we estimate that the gas infrastructure is in very good operating condition; so far, we have not had any major operational problems that could not have been managed in the framework of the planned maintenance interventions.

3.2 Domestic market 3.2.1 Supply of natural gas to Slovenia and access to natural gas sources Due to the lack of own sources, the supply of natural gas to the Slovenian market depends entirely on imports. The supply of natural gas to Slovenia takes place from Russia and individual hubs of the

TEN-YEAR GAS TRANSMISSION NETWORK DEVELOPMENT PLAN FOR THE 2018 2027 PERIOD

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 9 European gas market. From Austria, natural gas flows via the Ceršak entry point, and from Italy, via the Šempeter entry point. Natural gas, located in the trading hubs of the European market, is been pumped out both in Europe, as well as in North Africa and Russia. Figure 2. Sources of natural gas supply to Slovenia Data source: Energy Agency, Important indicators for the supply of electrical energy and natural gas for the year 20162 .

Figure 3. Natural gas import routes to Slovenia Through the interconnection point Ceršak, the TSO can supply all Slovenian consumers, regardless of their location. This is also reflected in the positive trend of increasing the share of supply via the Ceršak point in Figure 3. The suppliers can therefore provide a competitive supply for all consumers where this is not restricted by an interconnection point or a possible bottleneck on the natural gas transmission network. 3.2.2 Slovenian Energy Concept − orientations The Slovenian Energy Concept (Energetski koncept Slovenije – EKS) is in preparation. In accordance with the Energy Act (EZ-1, Official Gazette of RS, Nos. 17/2014 and 81/2015) and the projection of economic, environmental and social development of the country and along with the adopted national commitments, particularly those related to energy and climate, it will provide a basis for identifying ways for their achievement in the future.

2 https://www.agen-rs.si/documents/10926/38909/Pomembnej%C5%A1i-kazalniki-na- podro%C4%8Dju-oskrbe-z-elektri%C4%8Dno-energijo-in- zemeljskim-plinom-v-letu-2016/82f7747a-e5a4-4955-9db7-3113e6ee067d 2000 4000 6000 8000 10000 12000 14000 16000 18000 2012 2013 2014 2015 2016 GWh Russia Algeria Austria Italy Other 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 2012 2013 2014 2015 2016 Povezovalna točka Ceršak Povezovalna točka Šempeter Interconnection point Ceršak Interconnection point Šempeter

TEN-YEAR GAS TRANSMISSION NETWORK DEVELOPMENT PLAN FOR THE 2018 2027 PERIOD

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 10 The consultation document presented by the Ministry of Infrastructure (MoI) at the beginning of the consultation process in May 20153 outlines the key elements for directing Slovenia's transition into a low-carbon society, to which RS has already agreed in the past when adopting national commitments within international obligations. As an energy product, compared to the European average, natural gas has a much more modest representation in the national energy balance sheet, with the exception of industrial consumers sector. From responses to the material that the MoI has prepared on the subject of EKS so far and from last year's discussions on energy sources4 it can be summarised that natural gas will keep playing an important role in the energy sector in the future. In the discussions, natural gas has been recognised as an important energy product that is important for district heating systems and for individual energy systems. Natural gas is classified as low carbon fuel, since it produces a negligible amount of dust particles and substantially fewer emissions (CO, NOx, etc.) than in fuel oil, gasoline and diesel, petroleum gas and biomass5 . In order to achieve the national objectives of greenhouse gas emissions6 it will have to replace coal in district heating systems in at least the next five years and gradually replace fuel oil as well. Natural gas plays a special role in transport in two directives7,8 that describe it as an alternative fuel to fossil fuels in transport. In accordance with the aforementioned directive, a national strategy9 for the required infrastructure should already be prepared in the current year. Development of the transmission system is crucial and directed towards expanding the networks and establishing more efficient connections with distribution systems and the neighbouring transmission systems in the region. There is no doubt that the national energy-climate goals can only be achieved through the efficient use of several energy products, therefore combining the functions of their transmission systems and distribution systems or district heating systems. A higher degree of gasification in the country would contribute to this goal. The TSO is striving to develop and upgrade the system to increase the level of diversification, i.e. obtaining new sources through new routes, including the LNG (liquefied natural gas) terminals and access to natural gas storage facilities. 3.2.3 Existing supply of transmission capacity as of 1 January 2017 The TSO publishes the data on transmission capacity of the gas transmission network for relevant points that are shown in Figure 4 and confirmed by the Energy Agency. Five relevant points are displayed, four of which are cross-border interconnection points and relevant points for the publication of data, while the fifth relevant point is aggregate information on the combined exit/transmission for users in the Republic of Slovenia.

3 http://www.energetika-portal.si/dokumenti/strateski-razvojni-dokumenti/ener getski-koncept-slovenije/posvetovalni-proces-eks/ 4 http://www.energetika-portal.si/fileadmin/dokumenti/publikacije/eks/posveto vanje_delavnice/izvlecki_komentarjev_jun_2016.pdf 5 http://www.giz-dzp.si/zemeljski-plin/okoljske-prednosti/ 6 http://www.energetika-portal.si/dokumenti/strateski-razvojni-dokumenti/oper ativni-program-ukrepov-zmanjsanja-emisij-tpg/ 7 DIRECTIVE 2012/33/EU OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 21 November 2012 amending Council Directive 1999/32/EC as regards the sulphur content of marine fuels 8 DIRECTIVE 2014/94/EU OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 22 October 2014 on the deployment of alternative fuels 9 http://www.mop.gov.si/fileadmin/mop.gov.si/pageuploads/javna_narocila/2016/ studija_potrebnih_dodatnih_ukrepih/Obrazec_3_projektna_nalo ga.pdf

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 11 Figure 4. Schematic map of the gas transmission system with relevant points Table 4 presents data on the capacity of the relevant points as of 1 January 2017, the total contractually booked capacity and utilisation for different periods. Table 4. Capacity of the gas transmission system on relevant points10 Relevant point Technical capacity Total contractually booked capacity Maximum daily utilisation of technical capacity Average monthly utilisation of technical capacity Maximum monthly utilisation of technical capacity million kWh/day million kWh/day % Ceršak − entry 139.757 93.580 80.8 (17 November 2016) 45.5 (year '16) 61.8 (Dec. 2016) Rogatec − exit 68.584 51.381 72.4 (24 December 2016) 55.4 (year '16) 69.1 (Dec. 2016) Šempeter − entry 28.474 4.350 47.1 (25 July 2016) 0.5 (year '16) 6.3 (Jul. 2016) Šempeter − exit 25.885 0 99.1 (17 November 2016) 0.7 (year '16) 6.3 (Nov. 2016) Exit in RS 73.761 61.651 61,0 (22 December 2016) 34.6 (year '16) 51.8 (Dec. 2016) By monitoring the demand for additional capacity on the domestic gas market and the demand for cross-border transmission capacity and in accordance with the requirements for ensuring a secure supply of natural gas, the TSO is obliged to develop the transmission system to ensure all of this. Pursuant to Regulation No. 715/2009/EC, the TSO must provide system users their separate use of transmission capacity at all entry and exit points to the system (as per the so-called system of entry- 10 The capacity data refer to 1 January 2017, while the technical capacity utilisation data refer to the year 2016. M1 area M2 area M3 area M4 area relevant point compressor st.

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 12 exit points). To ensure successful operation of the entry-exit points system, the TSO must provide appropriate technical conditions such as the elimination of bottlenecks on the transmission system in order to enable suitable marketing and booking of capacity under this method and to allow the booking of capacity at entry and exit points in various combinations. With the introduction of transmission capacity booking via the auction platform PRISMA and with the implementation of a virtual point in Slovenia, there was greater dynamics of both the booking of transmission at the cross-border interconnection points and the transmitted quantities. 3.2.4 Infrastructure standard and compliance with Regulation 994/2010/EU The Regulation (EU) 994/2010 of the European Parliament and the Council concerning measures to safeguard security of gas supply introduces the so-called "infrastructure criterion N-1" stipulating for the subject geographic area that in the event of interruption on an individual largest gas infrastructure there must be sufficient technical capacity available to meet the entire daily demand for gas, even in cases of exceptionally high demand (peak consumption).

By 3 December 2014, Member States were obliged to adopt and implement measures to meet the infrastructure criterion N-1. When preparing the Regulation 994/2010/EU, The European Commission has taken into account that the circumstances in Slovenia are rather specific compared to other Member States. Slovenia has no natural gas storage facilities or liquefied natural gas plants and in addition to that, the Slovenian transmission system is connected to foreign transmission systems in only three handover points. For these reasons, Slovenia (along with Luxembourg and Sweden) is an exception and therefore not obliged to meet the criterion N-1. This exception applies as long as Slovenia maintains at least two interconnectors with other Member States, at least two different supply sources and no natural gas storage facilities or liquefied natural gas plants. Under Regulation 994/2010/EU of the European Parliament and the Council, Slovenia is obliged to submit a report to the European Commission by 3 December 2018 describing the circumstances regarding infrastructure criterion N-1. On the basis of that report and as long as the conditions for exemption continue to be fulfilled, the European Commission may decide to extend the validity of the exception. When dealing with transmission capacities at cross-border interconnection points, the analysis of the infrastructure standard was adjusted for the last Risk assessment for security of supply, prepared by the competent authority (Energy Agency), and for the Ten-Year Network Development Plan 2018 − 2027 in the light of analyses in the previous years. When calculating the infrastructure standard, only the firm transmission capacities were taken into account as technical capacities of cross-border interconnection points, without taking into account the possible specific measures of the transmission system operator to provide additional interruptible transmission capacity in the event that supply security is threatened. The technical capacities of the subject cross-border interconnection points are defined on the basis of flow-pressure calculations of the transmission system, taking into account the technical capacities of all the transmission system components included in the transmission (gas pipelines, metering and regulation stations, and the two compressor stations), as well as the operational characteristics and operational boundary conditions of the transmission system as a whole. The estimations of value increments of infrastructure criterion N-1, inter alia, also depend on the estimated growth of the peak load of the system. In the estimation of the development of peak load of the Slovenian transmission system it was taken into consideration that the peak load will increase in the coming years due to the growth of wide consumption.

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 13 Based on the analysis of prospective infrastructure projects, the TSO has estimated that the infrastructure standard N-1 will range between 57.4% and 56.8% in the next two years. In the long term, the TSO estimates that it can ensure the development of infrastructure standard N-1 for the Slovenian transmission system in a manner that will allow the system to reach the required level of 100%. Figure 5. Estimation of infrastructure criterion N-1 development for the Slovenian transmission system As the TSO, the company Plinovodi will be able to meet the requirements of the infrastructure criterion N-1 in the long term by: 1. establishing entry capacities and therefore enabling physical flow from the direction of Croatia via the cross-border interconnection point Rogatec (planned in 2019); 2. an additional connection of the Slovenian transmission system to neighbouring systems that could be realised within the Hungary connection project (planned in 2021). The development of the infrastructure criterion N-1 in the coming years will be strongly influenced by the development of the peak load of the system, which the criterion defines as "the entire daily demand for gas on a day of exceptionally high demand for gas". In the estimation of the influence of peak load development on the infrastructure criterion N-1 it was taken into consideration that the peak load of the system will increase in the coming years due to the growth of the wide consumption peak. The development of peak load in Slovenia will also depend on the booking of transmission capacities for gas power stations.

Pursuant to Article 7 of Regulation 994/2010/EU, the TSOs must implement a procedure for enabling bi-directional capacity or for exemption from the obligation of enabling bi-directional capacity for each cross-border interconnection between Member States: 1. Enabling bi-directional capacity at cross-border interconnection Šempeter/Gorica With the successful completion of the investment cycle on 1 January 2015 the TSO Plinovodi enabled bi-directional capacity at cross-border interconnection Šempeter/Gorica where bi- 57,4 56,8 112,5 111,4 116,3 115,2 114,0 112,9 111,8 110,7 109,6 0,0 20,0 40,0 60,0 80,0 100,0 120,0 140,0 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 14 directional booking of transmission capacity and bi-directional operation of the transmission system was taking place in 2015 and 2016. 2. Exemption for reverse flow capacity for cross-border interconnection Murfeld/Ceršak The TSO Plinovodi obtained the exemption from obligation of enabling bi-directional capacity at the cross-border interconnection Murfeld/Ceršak in accordance with the 4th paragraph of Article 7 of the Regulation 994/2010/EU without restrictions. Article 7 of the Regulation 994/2010/EU defines the repeat process for "enabling reverse flow capacity or exemption" on the basis of Risk assessment for security of supply, which is carried out every 2 years in accordance with Article 9 of the Regulation 994/2010/EU. The latest Risk assessment by the Slovenian competent authority for security of supply that was carried out in 2014 in both Austria and Slovenia has so far not indicated the need for enabling bi-directional capacity at the cross-border interconnection Murfeld/Ceršak.

3. Exemption for reverse flow capacity for cross-border interconnection Rogatec Based on the Risk assessment for security of supply, the TSO Plinovodi submitted the application for exemption from the obligation of enabling bi-directional capacity with the possibility of reverse flow from Croatia to Slovenia in 2016. It obtained the exemption for cross-border interconnection Rogatec until 31 December 2018. The risk assessment has taken into account that reverse flow capacity at cross-border interconnection Rogatec could affect the infrastructure standard of the Slovenian gas transmission system, but not before the Croatian transmission system is upgraded with compressor capacities for transmission of gas to cross-border interconnection Rogatec and for ensuring the necessary pressure conditions at this interconnection point, which would according to the time frame for the upgrade of Croatian transmission system be possible at the end of 2018 at the earliest. The technical solution to provide bi-directional capacity with reverse flow in Rogatec depends on the size of the requested transmission capacity. The most basic scenario would require an upgrade of the border metering and control station in Rogatec on the part of Slovenian TSO and an upgrade of the transmission system with compressor capacities on the part of Croatian operator. In the company Plinovodi we actively participate in all activities in the region related to the development of new or existing transmission directions. For the existing transmission direction Austria − Slovenia − Croatia, an analysis and technical design was performed to establish bi-directional capacities in the direction Rogatec − Ceršak (the project of the conceptual solution "Transmission pipeline M1 Ceršak − Rogatec and M1/1 Ceršak − Rogatec, Enabling bi-directional capacities with reverse flow", manufactured by IBE d.d., January 2015). In 2017, the increased capacity for the cross- border interconnection Murfeld/Ceršak is performed in cooperation with the Austrian transmission system operator Gas Connect Austria, via an auction of bi-directional capacities. Other activities for enabling bi-directional flows are also included in the development plan of the company Plinovodi, where the upgrades of the transmission system at the border metering and control station Rogatec, at the compressor station in Kidričevo, and at the border metering and control station Ceršak are planned.

We are just awaiting the publication of the new European Regulation 994/2010/EU concerning measures to safeguard security of gas supply, which builds on the substance in the preparation of the

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 15 Risk assessment, as well as in the field of implementation of preventive measures and measures in the event of an emergency. The requirements of the new regulation will be taken into account in the preparation of the following Risk assessment and Acts for securing the supply of natural gas. 3.2.5 Supply and demand for transmission capacity – territorial coverage As of 1 January 2017, the TSO had transmission contracts concluded with 147 system users, namely 14 DSOs operating in 81 municipalities, 131 industrial or commercial consumers and two power stations.

Figure 6. Regional availability of the gas transmission network The connection to natural gas can be performed in 81 Slovenian municipalities, which have an operating gas network and in which 14 distribution system operators provide natural gas supply. Based on the assessment of the potential of natural gas consumption, the distance of the municipality from the transmission system, the estimation of the value of the connection implementation, and the informative calculation of economic viability, the TSO estimates that there are 68 more municipalities where the implementation of the connection is reasonable.

In addition to households, for which the DSO would construct a network in densely populated locations, the other critical factor to decide whether to connect a local community to the transmission network is the transition of other industrial and commercial users to natural gas (schools, kindergartens, hotels, hospitals, stores, crafts and the like). The connection projects are divided into municipalities that could connect through existing MRSs, municipalities to which it would be necessary to construct a connection pipeline and a new MRS and municipalities whose connection depends on a previously constructed longer system pipeline.

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 16 Table 5. Regional availability of the gas transmission network and local communities with potential connections Statistical region Municipalities with DSO Local communities with potential connections and infrastructure required Use of existing MRS New constructions: connection pipelines and MRSs New constructions: longer system pipelines, connection pipelines and MRSs 1 Pomurska Beltinci, Gornja Radgona, Lendava, Ljutomer, UM Murska Sobota, Odranci, Radenci, Turnišče, Dobrovnik Apače, Črenšovci, Križevci, Moravske toplice, Puconci, Razkrižje, Tišina, Velika Polana, Veržej 2 Koroška Dravograd, Mežica, Muta, Prevalje, Ravne na Koroškem, UM Slovenj Gradec Mislinja Muta, Vuzenica, Radlje ob Dravi 3 Podravska Hoče – Slivnica, UM Maribor, Miklavž na Dravskem polju, Ormož, UM Ptuj, Rače – Fram, Ruše, Slovenska Bistrica, Selnica ob Dravi, Središče ob Dravi, Starše, Šentilj Dornava, Gorišnica, Markovci, Duplek, Hajdina, Kidričevo, Majšperk, Pesnica, Oplotnica, Videm Lenart 4 Savinjska UM Celje, Laško, Polzela, Prebold, Radeče, Rogaška Slatina, Rogatec**, Slovenske Konjice, Šentjur, Štore, Šoštanj, UM Velenje, Vojnik, Zreče, Žalec Braslovče, Šmartno ob Paki, Kozje, Ljubno, Nazarje, Mozirje, Podčetrtek, Šmarje pri Jelšah, Vransko 5 Zasavska Hrastnik, Zagorje ob Savi Trbovlje 6 Spodnje- posavska Brežice, Krško, Sevnica 7 Osrednje- slovenska Brezovica, Dobrova – Polhov Gradec, Dol pri Ljubljani, Domžale, Ig, Kamnik, Komenda, Litija, UM Ljubljana, Logatec, Log – Dragomer, Medvode, Mengeš, Škofljica, Trzin, Vodice, Vrhnika Borovnica, Horjul, Lukovica, Moravče Grosuplje, Ivančna gorica, Velike Lašče 8 Notranjsko- kraška Cerknica, Ilirska Bistrica, Pivka, Postojna 9 Gorenjska Bled, Cerklje na Gorenjskem, Jesenice, UM Kranj, Naklo, Gorje, Radovljica, Šenčur, Škofja Loka, Tržič, Žirovnica Kranjska Gora Žiri 10 Goriška Ajdovščina, Nova Gorica, Šempeter – Vrtojba, Vipava Miren – Kostanjevica, Renče – Vogrsko Kanal Idrija* 11 Obalno-kraška Sežana** Hrpelje – Kozina, Ankaran, UM Koper*, Izola, Piran 12 Jugovzhodna Slovenija UM Novo mesto Dolenjske Toplice, Straža Šentjernej, Škocjan Kočevje, Ribnica, Sodražica, Črnomelj, Metlika, Semič, Trebnje, Mirna Total Existing situation: 81 municipalities with a distribution network Possible increase in gas transmission network coverage for 68 potentially connectable municipalities *The municipality already has a chosen DSO. **DSO is connected to the system in the neighbouring country.

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 17 3.2.6 Comparison of the role of natural gas in Slovenia and Europe Figure 7. Primary energy in EU-28 and Slovenia in 2014 The Slovenian energy market is significantly different from the EU-28 average in three out of five elements, namely: natural gas, renewable sources, and nuclear heat. The share of natural gas in primary energy in the EU-28 countries is 2.3-times higher than in Slovenia, while the shares of renewable sources and nuclear heat are significantly higher in Slovenia. Data source: http://ec.europa.eu/eurostat/web/e nergy/data/main-tables Figure 8. The share of natural gas in primary energy in EU countries (data for 2014, refreshed in 2016) In Slovenia, the highest share was reached in 2009 − 14.5% and it has been dropping ever since. In the primary energy consumption structure in Slovenia, natural gas represents a 9% share, while the average value for the EU countries is 21%.

Data source: http://ec.europa.eu/eurostat/web/e nergy/data/main-tables 0% 5% 10% 15% 20% 25% 30% 35% 40% Trdna goriva Naftni proizvodi Zemeljski plin Jedrska toplota Obnovljivi viri Evropska unija 28 Slovenija 0% 5% 10% 15% 20% 25% 30% 35% 40% NL IT UK LT HU RO IE HR LV BE SK EU28 ES DE LU AT NO DK PT CZ PL BG FR RS EL SI FI EE MK SE AL CY ME MT Solid fuels Oil products Natural gas Nuclear heat Renewable sources Slovenia EU-28

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 18 Figure 9. Energy consumption by sector (2016) in Slovenia (Data source: RS energy balance sheet 2016) Figure 10. Energy sources in industry (2016) in Slovenia (Data source: RS energy balance sheet 2016) Figure 11. Non-energy consumption (2016) in Slovenia (Data source: RS energy balance sheet 2016) Figure 12. Energy sources in households (2016) in Slovenia (Data source: RS energy balance sheet 2016) In the year 2016, the largest share of energy consumption was in traffic. Industry and households represent an important segment of energy consumption as well. These three sectors have consumed nearly 89% of all energy, with the remaining 11% in other consumption, non-energy consumption and the energy sector. In Slovenian industry in 2016, natural gas represented 35% of consumption. One of the most suitable uses for natural gas lies in households, since it is easy to use, safe, as well as the most environmentally friendly and competitive. There are several reasons for its small share (10%) in Slovenia, the relatively small geographic coverage In comparison with 2016, the energy distribution by sector in Slovenia in the year 2006 was: industry 25% (last year 33%), traffic 39% (last year 30%), households 24% (last year 23%), other consumption 11% (last year 10%), non-energy consumption 1% (last year 4%).

Energy sector 0% Industry 25% Traffic 39% Households 24% Other consumption 11% Non-energy consumption 1% Solid fuels 3% Oil products 7% Natural gas 35% Electricity 41% Heat 4% RES 10% Solid fuels 12% Oil products 76% Natural gas 12% Solid fuels 0% Oil products 13% Natural gas 10% Electricity 24% Heat 8% RES 45%

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 19 Figure 13. Energy consumption in 2006 and 2016 Figure 14. Share of natural gas among the energy sources in industry (data for 2014, refreshed in 2016) Figure 15. Share of natural gas among the energy sources in households (data for 2014, refreshed in 2016) According to the RS energy balance sheet, the final energy consumption in the year 2016 amounted to 198,294TJ, which is 26.3% lower than ten years ago (2006):  reduced by 33.7% in industry,  increased by 17.3% in traffic,  reduced by 4% in households,  increased by 68.7% in other consumption,  reduced by 79.4% in non-energy consumption; one of the biggest reasons is the decommissioning of the methanol plant in Lendava. Slovenia is comparable to other EU-28 countries when it comes to the consumption of natural gas in industry (with a 32% share). The reduction in energy consumption in the last ten years affected all energy sources, so natural gas retained a relatively high share. Data source: http://ec.europa.eu/eurostat/web/ene rgy/data/main-tables Increasing the share of natural gas consumption in households is a lengthy process. In Slovenia, the biggest competitors are renewable energy sources (mainly wood biomass in various forms) and electricity for heat pumps. Data source: http://ec.europa.eu/eurostat/web/ene rgy/data/main-tables 50.000 100.000 150.000 200.000 250.000 300.000 2006 2016 0% 5% 10% 15% 20% 25% 30% 35% 40% 45% 50% ES RO FR LU NL CZ DE HU TR IT AT DK SK BE HR SI EU28 IE UK BG PL LT PT RS EE LV EL FI NO MK SE AL CY ME MT 0% 10% 20% 30% 40% 50% 60% 70% 80% NL UK SK HU IT LU BE DE EU28 RO CZ FR ES IE HR AT PL DK PT LT SI LV EL EE RS BG FI SE NO MK AL CY ME MT Industry Traffic Households Other consumption Non-energy consumption Total

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 20 Figure 16. Share of natural gas among the energy sources in conventional power stations (data for 2014, refreshed in 2016) In the year 2013, the consumption of natural gas in conventional thermal power stations in Slovenia amounted to 7,674.7GWh, but in the year 2014 it dropped to 788.3GWh (90% drop). Data source: http://ec.europa.eu/eurostat/web/ene rgy/data/main-tables 3.2.7 Natural gas consumption in the country in the 2008 – 2016 period The past consumption of natural gas represents one of the indicators used to forecast the booking of transmission capacity. In the year 2014, we have seen a large drop in consumption of natural gas, especially in the electricity production sector. The consumption of natural gas in the industrial sector has stabilised in the period from 2012 to 2014, which suggests that the economic conditions have settled down somewhat, and in 2015 there has been an increase in natural gas consumption in the industry segment of about 6%, and then in 2016 the additional 2.5%. In the other consumption segment, the TSO has been noticing a decline in natural gas consumption until 2014, which the TSO attributes mostly to installation of efficient facade insulations, new energy-efficient windows and other structural elements that contribute to lower consumption of energy products for heating, as well as extremely mild winters, but in 2015 an increase in natural gas consumption has been noticed in the other consumption segment as well, approximately 13%, and the additional 7.5% in 2016. Therefore, a total increase of about 4.5% has been recorded in the consumption of natural gas quantities in 2016 in comparison with the year 2015, and as much as 14% in comparison with the year 2014. Regardless of the annual volume of natural gas consumed, from the TSO's perspective, the key is the capacity booked on the level of daily consumption, required for the transmission of natural gas to supply the network users, which remains at about the same level during peak loads.

Table 6. Natural gas consumption in Slovenia in the 2008 – 2016 period (million kWh/year) Sector 2008 2009 2010 2011 2012 2013 2014 2015 2016 Industry 7,166 6,269 6,611 5,073 4,774 4,774 4,774 5,064 5,187 Other consumption 3,930 3,781 3,845 3,973 3,813 3,546 3,311 3,767 4,058 Electricity 331 758 705 566 619 545 43 38 30 Total 11,427 10,808 11,161 9,612 9,206 8,865 8,128 8,869 9,275 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% LU LV LT BE IE NL NO IT AT UK HR FR HU ES RO PT EU28 SK FI DE EL DK BG CZ SE SI PL EE MK RS AL CY ME MT

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 21 Figure 17. Natural gas consumption in Slovenia in the 2008 – 2016 period (million kWh/year) 3.2.8 Demand and anticipated supply of transmission capacity 3.2.8.1 Connection contracts Table 7 includes the projects for the future users of transmission capacity who have concluded a connection contract with the TSO and are envisaged for implementation in the coming period. Table 7. Connection contracts # Project name Purpose Planned start of operations B1 MRS TE-TOL; M5 Vodice − Jarše, R51 Jarše − TE-TOL Connection of thermal energy plant 2020 B2 MRS Godovič; R38 Kalce − Godovič Connection of DSO in the municipality of Idrija 2018 B9 MRS Lendava/Petišovci Connection to the production of natural gas 2019 B15 MRS Impol Adjustment to the demand characteristics of the user 2021 B17 MRS Knauf Capacity increase for industrial consumer 2018 3.2.8.2 Connection approvals Table 8 includes projects for users of transmission capacities who were issued connection approvals and their 2-year validity has not expired yet and connection contracts have not been concluded with them yet. Also displayed are the projects for which the users have submitted the application for approval and are in the phase of issuing the connection approval.

2.000 4.000 6.000 8.000 10.000 12.000 2008 2009 2010 2011 2012 2013 2014 2015 2016 mio kWh Year Industrija Ostala poraba Elektrika Industry Other cons. Electricity

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 22 Table 8. Connection approvals # Project name Purpose Planned start of operations B11 MRS Nasipi Trbovlje Connection of user and DSO 2019 B12 MRS Golnik Connection of DSO 2017/2018 B13 MRS Brestanica Adjustment to the demand characteristics of the power station (stage one) 2018/2019 B16 CNG MS Celje Connection of CNG filling station 2018 B18 MRS Miklavž na Dravskem polju Connection of DSO 2018 B45 MRS IZ Hoče; R13c Miklavž − Hoče Connection of DSO 2018 B25 MRS Rogatec ŠP Connection of DSO 2017/2018 B40 MRS Šobec Connection of DSO and/or user 2017/2018 B46 MRS Verovškova Connection of DSO 2017/2018 3.2.8.3 Queries Queries include the initial activities of our company, potential users and existing users of transmission capacities for connections that the TSO recorded as current and were addressed as queries in 2016. This group also includes the previous activities of potential users for which a connection approval had been issued, but has expired for various reasons and, hence, no connection contract has been concluded, yet the TSO still considers them as possible customers. For the following projects, the TSO considers that the potential or existing users have expressed interest for connections. Table 9. Queries # Project name Purpose Planned start of operations B19 MRS Bela Connection of DSO and industrial users; connection with the system pipeline point A18 2021 B20 MRS Halda 2021 B21 MRS Desni Breg 2021 B47 MRS Kranjska Gora Connection of DSO; connection with the system pipeline point A18 nd B3 MRS Sežana, MRS Kozina, MRS Dekani, MRS Koper, MRS Izola, MRS Lucija Connection of DSO in the municipalities of Sežana, Hrpelje − Kozina, Koper, Izola, Piran; connection with the system pipeline M6 after 2020 B4 MRS Cerklje; R297B Šenčur − Cerklje Connection of DSO in the municipality of Cerklje nd B5 MRS TTPP; R25A/1 Trojane − TTPP Connection of thermal power station nd B7 MRS Cerknica Connection of DSO and industrial users nd B8 CNG MS/MRS Connection of users with CNG filling stations 2018 − 2027 B14 Supply to users (Table 5) and other connection projects Connection of new users with mobile systems and adjustment of existing connection points 2018 − 2027 B27 MRS Šmarje pri Jelšah Connection of DSO 2018 B37 MRS Lukovica Connection of DSO nd B42 MRS Horjul Connection of DSO nd

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 23 B43 MRS Škocjan/Šentjernej Connection of municipality Škocjan and Šentjernej 2019 B44 MS Kandija Adjustment to the demand characteristics of the consumer nd B23 MS Primorje CGM Adjustment to the demand characteristics of the consumer nd B24 MS Labore Connection of DSO for industrial consumer nd B10 MRS Marjeta Connection of DSO in the municipality of Starše nd B26 MRS Pesnica Connection of DSO nd B22 MRS Šoštanj Connection of new industrial consumers nd B33 MRS Štore Adjustment to the demand characteristics of the user nd B30 MRS Videm Connection of DSO nd B31 MRS Kidričevo Connection of DSO nd B32 MRS Sveti Tomaž Connection of DSO nd B46 MRS Verovškova Adjustment to the demand characteristics of the user 2017/2018 B48 MRS Gorenje Adjustment to the demand characteristics of the user and connection of DSO 2017/2018 B49 MRS Trbovlje Adjustment to the demand characteristics of the user 2017/2018 B50 MRS Novo Celje Adjustment to the demand characteristics of the user nd B51 MRS Krško Adjustment to the demand characteristics of the user nd B52 MRS Solkan Adjustment to the demand characteristics of the user 2017/2018 B53 MRS Opekarna (Straža) Connection of new industrial consumers 2017/2018 B54 MRS Podčetrtek Connection of users nd B55 MRS Kozje Connection of users nd B56 MRS Vransko Connection of users nd B57 MRS Borovnica Connection of users nd * In addition to the station, each MS/MRS also includes a pipeline connecting the station to the transmission pipeline. 3.2.8.4 Potential connections Potential connections are projects that the TSO estimates will need to be carried out considering the expected development of the transmission system, distribution systems and users' needs for connections to the transmission system in the next ten-year period, but the interest for connection has not yet been expressed by existing or potential users, or has ceased.

Table 10. Potential connections # Project name Purpose Planned start of operations B34 MRS Grosuplje, MRS Ivančna Gorica, MRS Trebnje, MRS Mirna Peč, MRS Mirna Connection of DSO in the municipalities of Grosuplje, Ivančna Gorica, Trebnje, Mirna Peč, Mirna; connection with the system pipeline M5 nd B41 MRS Semič Connection of DSO; connection with the system pipeline R45 nd MRS Metlika nd MRS Črnomelj nd B28 MRS Oplotnica Connection of DSO nd B6 MRS TOŠ; R52 Kleče − TOŠ Connection of thermal energy plant nd

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 24 B36 MRS Komenda Connection of DSO nd B35 MRS Škofljica/Ig Connection of DSO nd B38 MRS Brezovica/Log Dragomer Connection of DSO nd B29 MRS Braslovče Connection of DSO nd B58 MRS Šmartno ob Paki Connection of DSO nd 3.2.8.5 Deployment of alternative fuels infrastructure The purposes of Directive 2014/94/EU on the deployment of alternative fuels infrastructure are minimising the dependence on oil and mitigating the environmental impact of transport, and it opens up new opportunities for natural gas in road and maritime transport.

The natural gas transmission system with the requisite development can represent an important support infrastructure for transport, which is why we are co-developing the national framework in the direction where natural gas in transport is first attributed adequate relevance due to its positive role that is already proving in many cases of good practice to reduce emissions of particulate matter and to a lesser extent CO2, and afterwards, that it becomes interesting for users, if necessary with the help of suitable financial incentives.

Projects within the framework of alternative fuels infrastructure are discussed in Point B8 CNG MS/MRS (connection of users with CNG filling stations). The national strategy for the development of alternative fuels infrastructure, dictated by the Directive 2014/94/EU, is currently under preparation and will be adopted by the Government of Republic of Slovenia expectedly in October 2017. 3.2.9 Forecast of natural gas consumption and booking of transmission capacity for the 2018 – 2027 period The forecast of booking of transmission capacity of the system operator is a key element of the review of future development of the natural gas market and it is based on numerous elements that the transmission system operator includes in the preparation of the forecast, namely:  the concluded contracts for the connection to the natural gas transmission system and transmission contracts,  the demands received from existing and potential network users,  past experiences with transmission system users and implementation of TSO's activities in terms of new connections,  forecasts for the construction of power facilities,  estimated transition of system users to the increasingly higher use of short-term transmission capacity,  prepared estimates of transmission capacity booking from the Requirement to issue consent to the regulatory framework, tariff items for network charges and tariff items for other services for the regulative period from 1 January 2016 to 31 December 2018, and  the estimates and forecasts that the ENTSOG prepares and uses in the preparation of the TYNDP (ENTSOG has included various scenarios in the methodology for the last TYNDP 2017, and the company Plinovodi pursued the goal of steady growth in the consumption of natural gas).

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 25 The forecast for the booking of transmission capacity for electricity production is provided in Table 11 and is based on the following assumptions:  it takes into account the existing contractual booking of the Šoštanj TPP,  the booking of the Brestanica TPP is assessed at the level of the 2015 booking,  the start of first-stage operations of the TE-TOL gas thermal plant is planned in accordance with the contract.

Table 11. Forecast for the booking of transmission capacity for electricity production (in million kWh/day) Sector 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 Šoštanj TPP 6.301 6.301 6.301 6.301 6.301 6.301 6.301 6.301 6.301 6.301 Brestanica TPP 0.694 0.694 0.694 0.694 0.694 0.694 0.694 0.694 0.694 0.694 TE-TOL, stage 1 8.010 8.010 8.010 8.010 8.010 8.010 8.010 8.010 Total 6.995 6.995 15.005 15.005 15.005 15.005 15.005 15.005 15.005 15.005 Table 12 provides an overview of the total planned booking of transmission capacity until 2027. The forecast indicates an increase in the booking of transmission capacity, which is in line with the company's development plans and the construction of additional transmission capacities. Table 12. Forecast for the booking of transmission capacity − total (in million kWh/day) Sector 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 Industry 22.395 22.619 22.846 23.074 23.305 23.538 23.773 24.011 24.251 24.494 Other consumption 25.508 26.213 26.476 26.742 27.010 27.281 27.555 27.832 28.111 28.393 Electricity 6.995 6.995 15.005 15.005 15.005 15.005 15.005 15.005 15.005 15.005 Total 54.898 55.827 64.327 64.821 65.320 65.824 66.333 66.848 67.367 67.892 Figure 18. Estimate of the booking of transmission capacity for the 2018 − 2027 period When preparing forecasts for the future booking of transmission capacity, the TSO uses different sources. Due to increased dynamics and an evolving natural gas market, the TSO warns that long-term 10 20 30 40 50 60 70 80 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 million kWh/day Year Elektrika Ostala poraba Industrija Electricity Other consumption Industry

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 26 forecasts, i.e. forecasts exceeding 3 years are in fact indicative forecasts that depend on various factors that cannot be directly influenced by the TSO. The most reliable source of forecasts used by the TSO are the agreements and contracts that have already been signed. The TSO has observed an ever more pronounced trend of short-term booking of transmission capacity, as network users tend to use short-term services more and more frequently. The increasing liquidity and liberalisation of the natural gas market provides additional opportunities for system users, while increasing the flexibility of natural gas supplies and reducing the reliability of the forecasts of transmission system operator bookings. The demand received constitutes an important source for the preparation of forecasts, but is very limited in terms of duration. When preparing forecasts, the TSO also monitors the development of the domestic and foreign energy markets and the plans for the construction of power facilities. The TSO continuously monitors the competitiveness of transmission routes in the region in order to ensure the proper competitiveness of the transmission route through Slovenia.

The TSO has prepared a forecast of natural gas consumption on the domestic gas market in the next ten years, which is presented in Table 13. Table 13. Forecast of natural gas consumption on the domestic gas market (in million kWh/year) Sector 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 Industry 5,239 5,291 5,344 5,397 5,451 5,506 5,561 5,617 5,673 5,729 Other consumpti on 4,099 4,140 4,181 4,223 4,265 4,307 4,351 4,394 4,438 4,482 Electricity 50 50 2,136 2,136 2,136 2,136 2,136 2,136 2,136 2,136 Total 9,388 9,481 11,661 11,756 11,852 11,949 12,048 12,147 12,247 12,347 In preparing forecasts for future use of natural gas, in addition to other elements the TSO takes into account the individual forecasts of stakeholders on the natural gas market and the general forecasts of natural gas market development and economic growth. The forecasts have taken into account the energy efficiency measures, but the TSO estimates that their impact will be superseded by the increased use of the energy product.

3.3 Cross-border transmission capacity and booking The Slovenian gas transmission system is connected with the gas transmission systems of the neighbouring countries via cross-border interconnection points that are managed by various TSOs. The cross-border interconnection points of the Slovenian TSO with the neighbouring transmission systems are made with:  the Austrian TSO, Gas Connect Austria, at the Ceršak cross-border interconnection point,  the Italian TSO, Snam Rete Gas, at the Šempeter cross-border interconnection point, and  the Croatian TSO, Plinacro, at the Rogatec cross-border interconnection point. For the purpose of cross-border trading and transmission, the capacity needs to be booked at the respective cross-border points and in the corresponding direction. The booking of transmission capacity is carried out according to the model of entry-exit points, where the system users have been provided with a separate and independent booking of transmission capacity at each cross-border interconnection point. In this manner, the system user carries out cross-border transmission of natural gas from the territory of another country via the Slovenian territory to a third country, which facilitates and promotes the establishment and operations of the Community's internal market. As of 1 November

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 27 2014, the booking of transmission capacity at the cross-border interconnection points is carried out via the joint online booking platform PRISMA by the principles of auctioning and for the capacity booking products in accordance with the Commission Regulation 984/2013/EU. Table 14. Existing and potential cross-border trading and transmission Direction Existing supply Planned supply Austria > Croatia Yes Yes Austria > Italy Yes Yes + increase Austria > Hungary No Yes(2) Italy > Austria Yes(1) Yes(1) Italy > Croatia Yes Yes Italy > Hungary No Yes(2) Croatia > Austria Yes(1) Yes(1 or 3) Croatia > Italy Yes(1) Yes(1 or 3) Croatia > Hungary No Yes(2 + 3) Hungary > Italy No Yes(2) Hungary > Austria No Yes(1 + 2) Hungary > Croatia No Yes(2) > direction of gas flow (1) interruptible upstream transmission capacity (not physical transmission) (2) conditional transmission − if the interconnector between Slovenia and Hungary is realised (3) conditional transmission − if pipeline interconnections with projects in Croatia 3.3.1 Demand for booking at cross-border interconnection points The requirement for carrying out cross-border transmission of natural gas is to book a suitable combination of transmission capacity at cross-border interconnection points. The TSO keeps the interested public informed of the available transmission capacity of the transmission system via its homepage, the auction platform PRISMA, and the ENTSOG transparency platform. In 2015 and 2016, the TSO received increased demand at cross-border points predominantly for the booking of transmission capacity in the direction of Croatia, and cross-border transmission in the direction of Italy. The TSO finds that the number of bookings of transmission capacity depends primarily on changing conditions on the neighbouring natural gas markets, while the bookings of transmission capacities in the direction of Italy are mainly related to the extremely cold periods and periods of high electricity prices, particularly on the Italian and French markets. In addition to the situation on neighbouring natural gas markets, the implementation of the virtual point and trading platform in Slovenia is also affecting short-term bookings of transmission capacity. Members of the trading platform are performing daily and intra-day transmission capacity bookings for transmission of purchased natural gas to neighbouring gas markets and for the purposes of ensuring the balance of the transmission system.

Possible alternative natural gas transmission routes in the direction of Italy, Croatia and Hungary are either relatively occupied or their costs are less favourable. The model of entry-exit points and the possibility of transmission capacity booking via auctions on all gas markets in the region has established a standardised and simplified procedure of transmission capacity booking that allows users of the transmission system greater flexibility and responsiveness to dynamic price changes on individual gas markets.

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 28 The key role in the provision of transmission capacity booking at the cross-border points as seen by the stakeholders on the gas market is the situation in the natural gas market, because users optimise their portfolios. With the implementation of short-term products, users have gained additional optimisation options, while at the same time the TSO notes the transition from long-term bookings to short-term bookings of transmission capacities. All this suggests that the implementation of long-term forecasts for the booking of transmission capacity is unpredictable.

3.3.2 Booking of transmission capacity at cross-border interconnection points in 2016 In 2016, capacity booking at cross-border interconnection points was mostly carried out through the auctioning process and exclusively via the online booking platform PRISMA. The TSO has been publishing the available firm and interruptible capacities at cross-border interconnection points on a daily basis on the booking platform and allowed the transmission system users to conclude contracts of various maturities (annual and multi-annual, quarterly, monthly, daily and intraday). Similar to previous years, the most occupied and utilised transmission direction in 2016 was in the direction from Austria (Ceršak entry) towards Croatia (Rogatec exit), where increasingly more short- term contracts for the booking of transmission capacity were being concluded in addition to long-term contracts. Considering the capacity bookings at cross-border interconnection points and the share of transmitted quantities (Figure 3) in the recent years, it is evident that the trend of bulk natural gas transmission and booking from the east supply direction via Austria has carried on in 2016. Due to commercial reasons, this direction is very interesting for all domestic, as well as foreign system users. Considering the available possibilities for the booking of transmission capacity with the TSO, it offers the system users the products of various maturities and at the cross-border interconnection points via an auction process. Figure 19 shows the dynamics of the booking of transmission capacity in 2016. From the introduction of the model of entry-exit points, the stated graphs show the increased daily dynamics of bookings throughout the year for the first time, this being even more noticeable in the final quarter of 2016. Hence it follows that the behaviour of the system users and thus also the bookings of the transmission capacity is changing from long-term to extremely short-term bookings with increased instantaneous/extreme capacity requirements.

Figure 19. Transmission capacity at interconnection points Ceršak and Rogatec in 2016 In the case of capacity booking at the cross-border interconnection point Šempeter, we find that in 2016, there were long-term bookings in the direction from Italy towards Slovenia that were at the level 0,0 20,0 40,0 60,0 80,0 100,0 120,0 140,0 160,0 jan 16 feb 16 mar 16 apr 16 maj 16 jun 16 jul 16 avg 16 sep 16 okt 16 nov 16 dec 16 Zmogljivost [GWh/dan] CERŠAK Tehnična zmogljivost Zakupljena zag. zmogljivost Prosta zag. Zmogljivost Zakupljena prek. zmogljivost 0,0 10,0 20,0 30,0 40,0 50,0 60,0 70,0 80,0 jan 16 feb 16 mar 16 apr 16 maj 16 jun 16 jul 16 avg 16 sep 16 okt 16 nov 16 dec 16 Zmogljivost [GWh/dan] ROGATEC Tehnična zmogljivost Zakupljena zag. zmogljivost Prosta zag. Zmogljivost Zakupljena prek. zmogljivost

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 29 of the previous years, as well as short-term product bookings. In the direction of transmission from Slovenia towards Italy, booking capacities were reflected in the occasional, but at the same time high level of utilisation of available technical capacity. Figure 20. Transmission capacity at cross-border interconnection point Šempeter in 2016 By upgrading the transmission system, the TSO has in recent years been increasing the available capacity at cross-border interconnection points and addressing the most pressing problem of physical congestion in the transmission direction from Austria towards Slovenia at the cross-border interconnection point Ceršak. Figure 21 shows how the technical capacity and transmitted natural gas quantities ranged in the last six years at cross-border interconnection points. Over the past six years, in line with the progress made by the construction of a parallel pipeline M1/1 from Ceršak towards Rogatec and further with the construction of a parallel pipeline M2/1 from Rogatec towards Vodice, the TSO has gradually increased the technical capacity at the cross-border interconnection point Ceršak, which was followed by the booking of additional transmission capacity at this cross-border point by the system users.

In the year 2016, the transmission system users used all available interconnection points and directions for the physical cross-border transmission of natural gas. Moreover, the TSO notes that in the above- mentioned year, the largest daily transmitted quantities were mostly higher than in the previous year, while the highest monthly transmitted quantities were comparable. In the year 2016, the growing importance of the cross-border interconnection point Šempeter was noted, both for the consumption in Slovenia, as well as for the cross-border transmission. During certain periods of the year, an increase in the utilisation of the available capacity was recorded at this interconnection point. This was particularly notably expressed with the largest daily transmission in the direction from Slovenia towards Italy when the physical transmission was at the level of the technical output capacity of this interconnection point.

0,0 5,0 10,0 15,0 20,0 25,0 30,0 jan 16 feb 16 mar 16 apr 16 maj 16 jun 16 jul 16 avg 16 sep 16 okt 16 nov 16 dec 16 Zmogljivost [GWh/dan] ŠEMPETER vstop Tehnična zmogljivost Zakupljena zag. zmogljivost Prosta zag. Zmogljivost Zakupljena prek. zmogljivost 0,0 5,0 10,0 15,0 20,0 25,0 30,0 jan 16 feb 16 mar 16 apr 16 maj 16 jun 16 jul 16 avg 16 sep 16 okt 16 nov 16 dec 16 Zmogljivost [GWh/dan] ŠEMPETER izstop Tehnična zmogljivost Zakupljena zag. zmogljivost Prosta zag. zmogljivost Zakupljena prek. zmogljivost

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 30 Figure 21. Maximum daily and monthly occupancy at cross-border interconnection points Physical transmission of natural gas towards Italy The transmission of natural gas in the direction from Slovenia towards Italy was enabled in the beginning of 2015 after the completion of the investment cycle, which consisted of several projects: the construction of a compressor station in Ajdovščina, the construction of the parallel backbone of the transmission system from Ceršak to Vodice, the upgrade of the compressor station in Kidričevo with the third compressor unit, and the upgrade of the border metering and control station in Šempeter. Bi- directional transmission of natural gas between Slovenia and Italy at the interconnection point Šempeter/Gorica was established in accordance with the requirements of Regulation (EU) No. 994/2010 concerning measures to safeguard security of gas supply. With the aforementioned investment cycle, the transmission system was provided with additional cross-border capacities for the transmission of natural gas from Austria via Slovenia towards Croatia and Italy, in addition to the necessary facilities for supplying all domestic users from the eastern supply route via the Murfeld/Ceršak interconnection point.

With the introduction of transmission capacity booking via the auction platform PRISMA and with the implementation of a virtual point in Slovenia, we have noticed increased interest in cross-border transmission towards Italy. The amount of transmitted quantities and the frequency of cross-border transmission towards Italy show commercial interdependence of the gas markets of Austria, Slovenia, and Italy. In 2015 and 2016, the bookings of transmission capacity for transmission via Slovenia towards Italy on the auction platform PRISMA were mainly realised on a daily basis (the "day-ahead" service or "intra-day" service), and the transmitted quantities reflected the bookings. On 17 November 2016, the users have fully booked and used the available technical capacity of the interconnection Šempeter/Gorica for the transmission from Slovenia towards Italy for the first time. For the first time, the transmission system operated at the full capacity of the interconnection Šempeter/Gorica to transmit natural gas from Slovenia towards Italy (25.7GWh/day) for the entire day (24 hours). In addition to the operation of the compressor station in Ajdovščina, the two compressor units at the compressor station in Kidričevo had to operate simultaneously for the first time. Depending on the way and the speed of the booking of transmission capacity on the booking platform PRISMA (intra-day booking) and the possible amounts of booking of transmission capacity by larger users, it can be concluded that such full booking of exit transmission capacity for the transmission from Slovenia towards Italy at the cross-border interconnection point Šempeter/Gorica can be repeated practically at any time.

Highest daily transmitted quantity (GWh/d) Highest average monthly transmitted quantity (GWh/d) entry entry exit exit

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 31 3.3.3 Booking forecast and estimates Forecasts and estimates of transmission capacity booking are based on the available historical data, the envisaged upgrades of the transmission system in Slovenia and the region, the estimates of macro- economic indicators and the estimate of the increasing liquidity of the gas market. For the purposes of providing the estimate of the forecast of transmission capacity booking at the cross-border point, the transmission system operator maintains regular communication with its transmission system users at the cross-border points, which is ensured through regular personal contacts and meetings with the transmission system users.

The development of the Slovenian transmission system has been intense in the past period and we have achieved the adequate transmission capacity at all interconnection points. With the implementation of European legislation and adoption of new system operating instructions in 2015, we have additionally standardised and facilitated the bookings of transmission capacity and capacity allocation processes. Table 15 presents an estimate of transmission capacity booking for the needs of cross-border natural gas transmission in the 2018 − 2021 period. In the case of capacity booking at interconnection points for domestic consumers, long-term contracts for the majority of total booked capacity will expire in 2017. When preparing forecasts for the booking of transmission capacity for the needs of cross-border transmission, the TSO takes into account the forecasts for booking at cross-border exit points. Due to the diversification of supply sources and the increase in liquidity of the gas market, the TSO finds that the conditions on the natural gas markets in the region have changed significantly, which further complicates the performance of the estimate of the forecast of transmission capacity booking over a longer period of time.

With the implementation of provisions of the Commission Regulation No. 984/2013/EU and the introduction of additional short-term transmission capacity products, including intra-day in 2015, the users have the option of booking transmission capacity for shorter periods, which is being increasingly utilised by them. The bookings presented in Table 15 are therefore only estimates, as the amount of transmission capacity booked at an individual relevant point varies on a daily basis. The presented estimates are prepared for the first day of the calendar year.

Table 15. Forecast and estimate of transmission capacity booking for domestic network users and cross-border transmission (in million kWh/day) Entry-exit points 2018 2019 2020 2021 Ceršak entry 55.073 65.073 65.073 65.073 Šempeter pri Novi Gorici entry 1.981 1.981 1.981 1.981 Rogatec entry 1.003 1.003 1.003 1.003 Total entry 58.057 68.057 68.057 68.057 Ceršak exit 0 0 0 0 Šempeter pri Novi Gorici exit 1.107 1.107 1.107 1.107 Rogatec exit 12.077 12.077 12.077 12.077 Slovenia exit 54.898 63.837 64.327 64.821 Total exit 68.082 77.021 77.511 78.005 From 2015, the TSO provides slightly higher technical capacity at the cross-border interconnection points Ceršak and Rogatec than those provided by the neighbouring transmission system operators. The

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 32 TSO also provides the possibility of physical transmission of natural gas in the direction of Italy (Table 16). With the additional capacity of the Slovenian transmission system, it is possible to supply the envisaged new domestic thermal power plants from the east supply direction, while any unused transmission capacity can be used for cross-border transmission of natural gas to Italy. To this end, by upgrading the border metering and control station Šempeter, the TSO also provided the possibility of bi-directional operations and exit transmission capacity at the cross-border interconnection point Šempeter (Table 15).

In the future, the TSO is planning further increases of transmission capacity at cross-border interconnection points, which will be achieved with the implementation of stage 2 of the extension of the compressor station in Kidričevo (project C5) and an upgrade of the compressor station in Ajdovščina (project C1). This will allow the TSO to meet the demand and further increase the transmission capacity at cross-border relevant points Ceršak and Šempeter after 2020. Table 16 only shows the development of technical capacity in the next 5-year period, since after this period, the capacity development of the Slovenian transmission system at cross-border interconnection points may already be significantly affected by the route of some of the new major pipeline projects in the region, whose capacities and time frames are not yet specified.

Table 16. Available technical capacity of the gas transmission system (in million kWh/day) Transmission system operator Interconnection points 2018 2019 2020 2021 2022 2023 Plinovodi Ceršak entry 139.76 139.76 139.76 217.79* 217.79* 320.76* exit 0 0 0 165* 165* 165* GCA Murfeld entry 0 0 0 181.3 181.3 181.3 exit 112.53 112.53 112.53 181.3 181.3 181.3 Plinovodi Rogatec entry 53 53 53 165** 165** 165** exit 68.58 68.58 68.58 233.21** 233.21** 233.21** Plinacro Rogatec entry 53 218 218 218 218 218 exit 0 165 165 165 165 165 Plinovodi Šempeter pri Novi Gorici entry 28.47 28.47 28.47 63.72* 63.72* 63.716* exit 25.89 25.89 25.89 63.72* 63.72* 63.72* Snam Rete Gas Gorizia entry 21.35 21.35 21.35 21.35 21.35 21.35 exit 46.97 46.97 46.97 46.97 46.97 46.97 General note The year of occurrence of available technical capacity means that operation will start during that year. Note * Upon realisation of 3rd unit of CS Ajdovščina − project C1 (TRA-N-092) and stage 2 of extension of CS Kidričevo − project C5 (TRA-N-094).

Note ** Upon realisation of Reconstruction of interconnection Rogatec – project C12 (TRA-N-390). The TSO will implement the projects for increasing the available technical capacity of the natural gas transmission system in case of relevant requests and needs, and with the increase of capacity of neighbouring operators at cross-border interconnection points in agreement with the operators. This will ensure the consistency of construction of new capacities on both sides of cross-border interconnection points.

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 33 Figure 22. Interconnection points technical capacity, booking forecast and estimate 50 100 150 200 250 2018 2019 2020 2021 mio kWh/dan Ceršak vstop - tehnična zmogljivost Ceršak vstop - napoved in ocena zakupa Ceršak izstop - tehnična zmogljivost Ceršak izstop - napoved in ocena zakupa Rogatec vstop - tehnična zmogljivost Rogatec vstop - napoved in ocena zakupa Rogatec izstop - tehnična zmogljivost Rogatec izstop - napoved in ocena zakupa Šempeter vstop - tehnična zmogljivost Šempeter vstop - napoved in ocena zakupa Šempeter izstop - tehnična zmogljivost Šempeter izstop - napoved in ocena zakupa Figure 22 shows the development of technical capacity in the next 4-year period. After this period, the capacity development of the Slovenian transmission system at cross-border interconnection points may already be significantly affected by the route of some of the new major pipeline projects in the region. In Table 16, the increased capacity and timelines after the year 2020 are therefore provided according to the currently available information and data. Ceršak entry - technical capacity Ceršak entry - booking forecast and estimate Ceršak exit - technical capacity Ceršak exit - booking forecast and estimate Rogatec entry - technical capacity Rogatec entry - booking forecast and estimate Rogatec exit – technical capacity Rogatec exit – booking forecast and estimate Šempeter entry - technical capacity Šempeter entry - booking forecast and estimate Šempeter exit - technical capacity Šempeter exit - booking forecast and estimate

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 34 4 Set of planned gas infrastructure for the 2018 − 2027 period Depending on its purpose, the planned infrastructure is broken down into: projects for increasing operational security, projects for connecting new natural gas consumers or changing the operational characteristics of gas infrastructure, and projects for developing interconnection points. Table 17. Status and level of treatment as of 1 January 2017 − summary table Investments 2018 − 2027 Number FID Level of treatment 1 January 2017 Concept ual designs NSP(p) NSP Building permit A Increase in operational security 18 10 1 7 B Connections 58 5 51 6 1 C Development of interconnection points 17 3 7 7 Total 93 5 64 8 20 1 4.1 Projects to increase operational security Figure 23. Locations of projects to increase operational security The group of projects that allow the increase of operational security includes energy loops, displacements of pipeline sections due to specific settlement modifications and prevention of landslides. In several cases, these projects provide the possibility of connecting new municipalities.

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 35 The estimate of the operational security for an individual part of the transmission system is based on the flow-pressure calculation under the peak load conditions, which determines the load on the gas infrastructure and the exposure of users in case of failure of individual parts of the transmission system. The flow-pressure calculation checks the solutions (e.g., a system loop) to ensure a sufficiently powerful redundant transmission of natural gas to the exposed part of the transmission system. Table 18. Projects to increase operational security A Project name Purpose Planned start of operations A1 Loop to Zreče Stage one: R21AZ Konjiška vas − Oplotnica System loop, increase of transmission capacity and operational security after 2020 Stage two: R21AZ Oplotnica − Zreče Increase of transmission capacity and operational security, allows for connection of new municipality nd Stage three: P21AZ1 Oplotnica − Slovenska Bistrica Increase of transmission capacity and operational security, allows for connection of new municipality nd A2 R51a Jarše − Sneberje System loop after 2020 A3 R51b TE-TOL Fužine/Vevče System loop, allows for connection of DSO to MOL after 2020 A4 R51c Kozarje − Vevče System loop after 2020 A5 Dravograd − Ruše − Maribor Stage one: Dravograd − Ruše System loop; allows for connection of new municipalities nd Stage two: Ruše − Maribor System loop nd A6 Kalce − Godovič − Žiri − Škofja Loka Stage one: Kalce − Godovič System loop; allows for connection of new municipalities 2018 Stage two: Godovič − Škofja Loka System loop; allows for connection of new municipalities nd A7 Škofja Loka − Medvode − Ljubljana System loop nd A8 Laško − Hrastnik − Radeče System loop nd A9 R12A M1 − Lenart − MRS Gornja Radgona System loop; allows for connection of new municipalities nd A10 Šoštanj − Dravograd System loop nd A11 M4 section Podčetrtek Displacement of pipeline due to an adjustment to the requirements of third parties nd A12 M2 section Trnovlje Displacement of pipeline due to settlement modifications of MOC nd A13 M5 Vodice − Jarše − Novo mesto Stage one: Vodice − Jarše System loop; allows for connection of R51 Jarše − TE- TOL, MRS TE-TOL 2020 Stage two: Jarše − Grosuplje System loop; allows for connection of new municipalities nd Other stages: Grosuplje − Novo mesto System loop; allows for connection of new municipalities nd A14 M6 Ajdovščina − Lucija System pipeline; allows for connection of new municipalities after 2020 A15 Management Centre Technology and facility after 2020 A16 R45 Novo mesto − Bela Krajina System pipeline; allows for connection of new municipalities nd A17 R25A/1 Trojane − Hrastnik System pipeline; increase of transmission capacity and operational security; connection of new users nd A18 R29 Jesenice − Kranjska Gora Stage one Rehabilitation of the gas transmission system at the energy bridge after 2020

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 36 Stage two Increase of transmission capacity and operational security, allows for connection of DSO nd 4.1.1 "Management Centre" project With the "Management Centre" project, we will increase the reliability of the operation of the natural gas transmission system, and ensure the long-term development and expansion of the functionality of the transmission system operator and the necessary information systems. As the most important object for managing the natural gas transmission system, the Management Centre will have to meet the high requirements of reliability and operational safety. Due to specific requirements, the Management Centre will be placed in a newly-built facility. In it, the flood risk of all the systems and subsystems necessary for the operation of the Centre and thus the technological management process will be completely eliminated.

The reliability of information systems in the Management Centre will be provided with an uninterrupted power supply system with great autonomy, and great attention will be devoted to the appropriate installation and protection of the technological equipment against the effects of electromagnetic interference, fire, and unauthorised access. The information system will consist of a process control system and a business information system, and with the use of standardised solutions, easier maintenance of systems and the implementation of upgrades of individual systems or related systems will be enabled.

The "Management Centre" project will provide the basic spatial framework, which can be further upgraded in the future, thus providing additional space for the potential expansion of the functionality of the Management Centre or the expansion of the transmission system operator's activity in the next long-term period. The information system will also have a redundant layout at a backup location, in accordance with the requirements of the legislation. The company Plinovodi d.o.o. is in the stage of intensive development of new functions of information systems in accordance with the requirements of the legislation. For this reason, we continue with the automatisation and digitalisation of all business processes, as well as with the update of the process control system. With the "Management Centre" project, the following main functions of transmission process management and control, which are necessary for the management of processes, will be fully managed: - Management of the transmission system with a Dispatch Centre; - Commercial management of transmission capacities and transmitted quantities by a Business Dispatch Centre; - Virtual point management with the virtual point organiser; - Management of the trading platform and other legally-defined information platforms; - Forecasting of the natural gas consumption in the function of the Forecaster. With the content upgrade of information systems, we will simultaneously ensure efficient data exchange with system users and reporting in accordance with the legislation. For the realisation of the above functions, we perform the following activities: 1. Replacement of the process control system for the management of the transmission system The replacement of the management system is planned in the scope of exchange of hardware and system software in the Centre, as well as peripheral units for data acquisition and transfer. User interfaces for system overview and management will be upgraded in accordance with the latest technical guidelines and findings.

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 37 2. Implementation of the Forecaster Project and data exchange with the distribution system operators and suppliers The appointment of the company Plinovodi d.o.o. as the "Forecaster" is the central novelty of the Management Centre. After the preparation and adoption of the Methodology, the company started developing an application for forecasting using standard load profiles, as well as with the development of a data exchange system for data exchange with distribution system operators and suppliers.

3. Implementation of the EIC code system The company Plinovodi d.o.o. has the status of the local EIC code granter (Energy Identification Code) for Slovenia. The introduction of the standardised coding system EIC is a comprehensive project that will be linked to communication between systems within the Management Centre, as well as to external communication. 4. Standardisation of communication with users and transmission system operators The standardisation of communication will be based on the introduction of uniform and open standards for individual contents (e.g., AS4/Edigas for data exchange at interconnection points); moreover, the regulatory frameworks and the situation with other transmission system operators will also be taken into account In the development of information systems, great attention will continue to be given to providing information security and further expanding the use of mobile applications. Development of optical connections between the Management Centre and objects on the transmission system In the field of communication technologies, the company Plinovodi d.o.o. started designing an optical connection between the Management Centre in Ljubljana and the significant facilities on the natural gas transmission system. On the basis of these projects, it will be possible to implement our own optical connections, thus ensuring greater transmission capacity of process data from individual locations on the transmission system, and in addition, preventive monitoring of potential interventions in the vicinity of the transmission pipelines will be possible with the use of modern technologies. In the first phase, the optical connection between the Management Centre and the metering and regulation station in Ljubljana, and then to the optical hub at the metering and regulation station in Vodice will be performed.

Development and upgrading of functionality within the Management Centre Within the framework of the "Management Centre" project, the company Plinovodi d.o.o. will, as the transmission system operator, provide all the necessary information support for the " Unit for Natural Gas Quality Monitoring and Evaluating", as well as for the "Unit for Metering System Control for Measuring Transmitted Natural Gas Quantities". An increasingly dynamic natural gas market requires quality measurements, and the expected flows of natural gas from multiple sources require a systematic monitoring of the composition and quality of gas.

1. Unit for Natural Gar Quality Monitoring and Evaluating On the basis of the standard on the quality of natural gas EN 16726:2016 and the system operating instructions SON:2015, the parameters of the natural gas quality at the entry, exit, and selected internal measuring points of the Slovenian transmission system must be measured continuously and cyclically. For the monitoring of the quality of natural gas, data and signals from stationary and portable metering systems or meters, such as chromatographs, water and hydrocarbon dewpoint meters, molar concentration meters, e.g. oxygen, carbon dioxide,

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 38 nitrogen, were going to be transmitted. The parameters for the quality of natural gas must be measured using modern criteria and measurement methods recognised in the European Union. The tasks of the Unit for Natural Gas Quality Monitoring and Evaluating are maintenance and calibration of measuring systems or meters for measuring the quality of natural gas, as well as the measuring, evaluation and taking the necessary actions.

2. Unit for Metering System Control for Measuring Transmitted Natural Gas Quantities The Unit for Metering System Control must continuously monitor the functioning of the installed gas meters and correctors at the measuring points, as well as control the data transfer from the meters to the Centre. On the basis of data on the quality of natural gas, the transmitted energy quantities are also checked in the Centre on the basis of the valid standards and recommendations. It is necessary to provide a comparative measurement of the transmitted volumes of natural gas at the entry and exit measuring points on the transmission system. The data must be compared with the data from the neighbouring transmission system operators. When evaluating the benchmark measurements, the criteria and statistical estimators, used in the research work, must be used. The task of the Unit is also data verification in the data transmission systems Telereading and Validation. Based on the findings in the data verification process, it is necessary to keep the relevant departments and units in the company Plinovodi d.o.o. updated.

4.2 Connection projects Figure 24. Locations of projects for new connections

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 39 The connections group includes projects for connections of new consumers, changes to the operational characteristics at pipeline structures for existing consumers, and the connection of a natural gas producer. These have been included in the list based on queries, connection approvals and/or connection contracts. Connection projects also include projects for connection of users establishing an infrastructure of CNG filling stations − compressed natural gas for powering vehicles. The aforementioned projects also include the connection of a natural gas producer to the transmission pipeline system in the region of Pomurje. The producer is the holder of concession rights for the extraction of mineral resources, crude oil, natural gas and gas condensate in the area of the Mura Depression, i.e. in the gas and oil fields Dolina and Petišovci pri Lendavi. In table 19, all connection projects are presented (also included in Tables 7, 8, 9, and 10), both those for which interest has been shown, as well as those identified by the transmission system operator as having potential on the basis of their own analyses, for which interest for connection has not yet been expressed by the existing or potential users.

Table 19. Connections B Project name Purpose Planned start of operations B1 MRS TE-TOL; M5 Vodice − Jarše, R51 Jarše − TE-TOL Connection of thermal energy plant 2020 B2 MRS Godovič; R38 Kalce − Godovič Connection of DSO in the municipality of Idrija 2018 B3 MRS Sežana, MRS Kozina, MRS Dekani, MRS Koper, MRS Izola, MRS Lucija Connection of DSO in the municipalities of Sežana, Hrpelje − Kozina, Koper, Izola, Piran; connection with the system pipeline M6 after 2020 B4 MRS Cerklje; R297B Šenčur − Cerklje Connection of DSO in the municipality of Cerklje nd B5 MRS TTPP; R25A/1 Trojane − TTPP Connection of thermal power station nd B6 MRS TOŠ; R52 Kleče − TOŠ Connection of thermal energy plant nd B7 MRS Cerknica Connection of DSO and industrial users nd B8 CNG MS/MRS Connection of users with CNG filling stations 2018 − 2027 B9 MRS Lendava/Petišovci Connection to the production of natural gas 2019 B10 MRS Marjeta Connection of DSO in the municipality of Starše nd B11 MRS Nasipi Trbovlje Connection of user and DSO 2019 B12 MRS Golnik Connection of DSO 2017/2018 B13 MRS Brestanica Stage one Adjustment to the demand characteristics of the power station 2018/2019 Stage two nd B14 Supply to users (Table 5) and other connection projects Connection of new users with mobile systems and adjustment of existing connection points 2018 − 2027 B15 MRS Impol Adjustment to the demand characteristics of the user 2021 B16 CNG MS Celje Connection of CNG filling station 2018 B17 MRS Knauf Capacity increase for industrial consumer 2018 B18 MRS Miklavž na Dravskem polju Connection of DSO 2018 B19 MRS Bela Connection of DSO and industrial users 2021 B20 MRS Halda Connection of industrial users 2021 B21 MRS Desni Breg Connection of DSO and industrial users 2021 B22 MRS Šoštanj Connection of new industrial consumers nd

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 40 B23 MS Primorje CGM Adjustment to the demand characteristics of the consumer nd B24 MS Labore Connection of DSO for industrial consumer nd B25 MRS Rogatec ŠP Connection of DSO 2017/2018 B26 MRS Pesnica Connection of DSO nd B27 MRS Šmarje pri Jelšah Connection of DSO 2018 B28 MRS Oplotnica Connection of DSO nd B29 MRS Braslovče Connection of DSO nd B30 MRS Videm Connection of DSO nd B31 MRS Kidričevo Connection of DSO nd B32 MRS Sveti Tomaž Connection of DSO nd B33 MRS Štore Adjustment to the demand characteristics of the user nd B34 MRS Grosuplje, MRS Ivančna Gorica, MRS Trebnje, MRS Mirna Peč, MRS Mirna Connection of DSO in the municipalities of Grosuplje, Ivančna Gorica, Trebnje, Mirna Peč, Mirna; connection with the system pipeline M5 nd B35 MRS Škofljica/Ig Connection of DSO nd B36 MRS Komenda Connection of DSO nd B37 MRS Lukovica Connection of DSO nd B38 MRS Brezovica/Log Dragomer Connection of DSO nd B39 MRS Svilanit Connection of DSO nd B40 MRS Šobec Connection of DSO and/or user 2017/2018 B41 MRS Semič Connection of DSO; connection with the system pipeline R45 nd MRS Metlika MRS Črnomelj B42 MRS Horjul Connection of DSO nd B43 MRS Škocjan/Šentjernej Connection of municipality Škocjan and Šentjernej 2019 B44 MS Kandija Adjustment to the demand characteristics of the consumer nd B45 MRS IZ Hoče; R13c Miklavž − Hoče Connection of DSO 2018 B46 MRS Verovškova Adjustment to the demand characteristics of the user and connection of DSO 2017/2018 B47 MRS Kranjska Gora Connection of DSO; connection with the system pipeline R29 Jesenice − Kranjska Gora (A18) nd B48 MRS Gorenje Adjustment to the demand characteristics of the user and connection of DSO 2017/2018 B49 MRS Trbovlje Adjustment to the demand characteristics of the user 2017/2018 B50 MRS Novo Celje Adjustment to the demand characteristics of the user nd B51 MRS Krško Adjustment to the demand characteristics of the user nd B52 MRS Solkan Adjustment to the demand characteristics of the user 2017/2018 B53 MRS Opekarna (Straža) Connection of new industrial consumers 2017/2018 B54 MRS Podčetrtek Connection of users nd B55 MRS Kozje Connection of users nd B56 MRS Vransko Connection of users nd B57 MRS Borovnica Connection of users nd B58 MRS Šmartno ob Paki Connection of DSO nd * In addition to the station, each MS/MRS also includes a pipeline connecting the station to the transmission pipeline.

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 41 4.3 Development of interconnection points with the neighbouring transmission systems The projects of development of interconnection points (interconnections) with the neighbouring transmission systems are aimed at establishing new interconnection points with the neighbouring systems, increasing the existing transmission capacities, establishing reverse flows, and meeting the infrastructure standard N-1. For better information and overview of these projects, we exchange consultation forms with detailed information on relevant planned projects with the neighbouring TSO each year as part of the preparation of development plans, as well as attend various public debates, consultations and coordination meetings.

A project linking the Slovenian and Hungarian transmission systems managed by the FGSZ Ltd has the status of a "Project of Common Interest" (PCI) in line with the Regulation 347/2013/EU and is included in the list of Commissioned Delegated Regulation (EU) 2016/89 of 18 November 2015. The project envisages construction of a 73km pipeline and expansion of the existing compressor station Kidričevo with additional compressor units. The purpose of this project, shown in Figure 25, is to connect the so- far unconnected Slovenian and Hungarian transmission systems, provide Slovenian suppliers access to Hungarian underground storage facilities, and provide Hungarian suppliers access to western gas markets and LNG sources in Italy and North Adriatic. The project also improves the infrastructure standard N-1 and is a candidate for the next PCI list, which will be confirmed at the end of 2017. Figure 25. PCI project 6.23 Interconnection Hungary − Slovenia In accordance with the above legislation, a group of projects in the corridor of Austria, via Slovenia, towards Croatia have a status of a project of special interest. This is an upgrade of the capacity of existing transmission systems and the establishment of reverse flows between the systems that are managed by us and in addition to us also by the companies Gas Connect Austria GmbH and Plinacro d.o.o. Figure 26 shows the harmonised technical parameters and the time line of the project

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 42 implementation. In the Slovenian system, this project envisages the following: the reconstruction of the interconnection Rogatec, the reconstruction of the interconnection Ceršak, and the extension of the compressor station Kidričevo. These projects are candidates for the PCI status in 2017, as well. Figure 26. PCI project 6.26 Interconnection of Croatia, Slovenia and Austria at Rogatec The interconnection hub in eastern Slovenia is CS Kidričevo. The further development of this point is designed to cover larger or smaller requirements for additional operating capacities in the direction of Austria, Croatia and also Hungary via the planned pipeline R15/1.

Due to the strengthening of the regional gas market and the establishment of the southern gas corridor, whose projects will bring natural gas and liquefied natural gas to the region, the strengthening of the connection of the Slovenian system with the Italian transmission system in Gorizia is becoming more and more important. According to the realisation of the development plan prepared by Snam Rete Gas S.p.A. for the period from 2016 to 2025 and the new development plan for the period from 2017 to 2026, which is under preparation, upgraded bi-directional connections in the direction of the north of the Union and the east of the Union will be established in the northern part of Italy after 2018. In 2019, they will already be able to operate technically, which means that the Slovenian system will have to adapt to the newly created pressure conditions in the Italian system due to bi-directional operation.

In order to provide a reverse flow in the direction of Gorizia in larger capacities, the following projects should be carried out on the transmission system:  The first stage of the expansion of CS Ajdovščina (project C1), i.e., an additional compressor unit at CS Ajdovščina; and  The reconstruction of the pipeline M3 and the branches between the CS Ajdovščina and the cross-border point in Nova Gorica, together with the new cross-border station Nova Gorica (project C2). In case of market demands for a significant increase in capacity at the entry/exit point Nova Gorica, the second stage of the extension project of the CS Ajdovščina will have to be realised and the pipeline interconnection M3/1 from Vodice to Nova Gorica implemented.

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 43 The construction of the pipeline M6, which will supply the Obalno-kraška region, run from Ajdovščina to Lucija, and in its course approach the national border with the Republic of Italy, will enable the implementation of another additional interconnection of the Italian and Slovenian transmission networks at Osp. This means that the project M6 provides a new interconnection, which is also included in the Snam Rete Gas S.p.A. development plan for the period from 2016 to 2025 and the new development plan for the period from 2017 to 2026.

Figure 27. Upgrade of the interconnection Slovenia − Italy and potential new interconnection with Italy at Osp We are also planning a new interconnection with the Croatian transmission system. The construction of a 60-km pipeline M8 Jelšane − Kalce that will provide the transmission of natural gas from the possible LNG terminal on the Island of Krk in Croatia and/or the possible IAP transmission system (Ionian Adriatic Pipeline) is planned. Also related to the project of transporting Croatian LNG through Slovenian territory is the construction project for the 100-km pipeline M3/1 Šempeter − Vodice; in addition to providing transmission to the Italian transmission system, the pipeline will also provide transmission of the same gas to the extended interconnection point Ceršak and onwards to the Austrian system.

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 44 Figure 28. Projects for the development of interconnection points with the neighbouring transmission systems Table 20. Development of interconnection points with neighbouring countries C Project name Purpose Planned start of operations Status of the PCI 2015 and candidacy for the PCI 2017 C1 CS Ajdovščina extension Stage one Adjustment to the operational parameters of the Italian TSO’s transmission system and reverse flow after 2020 Stage two LNG North Adriatic nd C2 Reconstruction of M3 at section CS Ajdovščina − Miren with branches Adjustment to the operational parameters of the Italian TSO’s transmission system (73.9bar) + BMCS Vrtojba after 2020 Adjustment to the operational parameters of the Italian TSO’s transmission system (100bar) nd C3 R15/1 Pince − Lendava − Kidričevo Stage one: Pince − Lendava Interconnector with the Hungarian TSO after 2020 X Stage two: Lendava − Ljutomer Stage three: Ljutomer − Kidričevo CS Kidričevo − extension stage 3 C4 Upgrade of interconnection Ceršak (M1/3 interconnection Ceršak) Interconnector with the Austrian TSO, adjustment to the operational parameters of the Austrian TSO’s transmission system after 2020 X C5 CS Kidričevo − extension stage Improvement of operational parameters in M1/1 after 2020 X

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 45 2 and M2/1 C6 CS Vodice II Improvement of operational parameters in M2, M2/1, M3, M3/1, M5, M10 nd C7 M3/1a Šempeter − Ajdovščina Interconnector with the Italian TSO, LNG North Adriatic nd C8 M3/1b Ajdovščina − Kalce Interconnector with the Italian TSO, LNG North Adriatic nd C9 M3/1c Kalce − Vodice Interconnector with the Italian TSO, LNG North Adriatic nd C10 M8 Kalce − Jelšane Interconnector with the Croatian TSO, LNG North Adriatic, as well as connection of new municipalities nd C11 R67 Dragonja − Izola Interconnector with the Croatian TSO nd C12 Upgrade of interconnection Rogatec (M1A/1 Interconnection Rogatec) Interconnector with the Croatian TSO: construction of cross-border pipeline and extension of BMCS Rogatec after 2020 X C13 M9a Lendava − Kidričevo (and extension of CS Kidričevo) Cross-border transmission nd C14 M9b Kidričevo − Vodice and CS Vodice I Cross-border transmission nd C15 M10 Vodice − Rateče Cross-border transmission nd C16 BMCS Rogatec bi-directional flow upgrade Provision of bi-directional capacities: upgrade of installations in existing BMCS Rogatec for reverse flow from Croatia to Slovenia 2018 C17 M6 Interconnection Osp Interconnector with the Italian TSO nd 4.4 Projects in preparation and planning in the 2018 − 2020 period and projects in implementation The TSO estimates to have a total of 27 projects in preparation and planning in the 2018 − 2020 period and to carry out (construct or begin construction on) 18 of those projects, while 8 will remain in planning with envisaged investments in studies, location and investment documentation in the next 3 years. Although the majority of the projects did not have a FID status as of 1 January 2017, the TSO estimates that they have achieved suitable maturity in respect to the level of treatment achieved on both sides, i.e. on the part of the TSO and on the part of the potential transmission system users. Table 21. Projects planned in the 2018 – 2020 period # Project name Purpose Level of treatment 1 January 2017 Planned start of operations A1 Loop to Zreče Stage one R21AZ Konjiška vas − Oplotnica System loop, increase of transmission capacity and operational security NSP prepared after 2020 A13 M5 Vodice − Jarše − Novo mesto Stage two: Jarše − Grosuplje System loop; allows for connection of new municipalities Conceptual designs after 2020 A18 R29 Jesenice − Kranjska Gora Stage one Rehabilitation of the gas transmission system at the energy bridge Conceptual designs after 2020 C2 Reconstruction of M3 at section CS Ajdovščina − Miren with branches Adjustment to the operational parameters of the Italian TSO’s transmission system (73.9bar) + BMCS Vrtojba NSP prepared after 2020

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 46 C3 R15/1 Pince − Lendava − Kidričevo Stage one: Pince − Lendava Interconnector with the Hungarian TSO NSP(p) after 2020 Stage two: Lendava − Ljutomer Stage three: Ljutomer − Kidričevo CS Kidričevo − extension stage 3 C4 Upgrade of interconnection Ceršak (M1/3 interconnection Ceršak) Interconnector with the Austrian TSO, adjustment to the operational parameters of the Austrian TSO’s transmission system NSP prepared after 2020 C5 CS Kidričevo − extension stage 2 Improvement of operational parameters in M1/1 and M2/1 NSP prepared after 2020 C12 Upgrade of interconnection Rogatec (M1A/1 Interconnection Rogatec) Interconnector with the Croatian TSO: construction of cross-border pipeline and extension of BMCS Rogatec NSP(p) after 2020 Table 22. Projects in preparation in the 2018 – 2020 period # Project name Purpose Level of treatment 1 January 2017 Planned start of operations A4 R51C Kozarje − Vevče System loop NSP(p) after 2020 A6 R38 Kalce − Godovič System loop; allows for connection of new municipalities NSP prepared 2018 A13 M5 Vodice − Jarše − Novo mesto Stage one: Vodice − Jarše System loop; allows for connection of R51 Jarše − TE-TOL, MRS TE-TOL BP acquired 2020 A14 M6 Ajdovščina − Lucija System pipeline; allows for connection of new municipalities NSP prepared after 2020 A15 Management Centre Technology and facility Conceptual designs after 2020 B1 MRS TE-TOL; M5 Vodice − Jarše, R51 Jarše − TE-TOL Connection of thermal energy plant BP acquired 2020 B2 MRS Godovič; R38 Kalce − Godovič Connection of DSO in the municipality of Idrija NSP prepared 2018 B3 MRS Sežana, MRS Kozina, MRS Dekani, MRS Koper, MRS Izola, MRS Lucija Connection of DSO in the municipalities of Sežana, Hrpelje − Kozina, Koper, Izola, Piran; connection with the system pipeline M6 NSP prepared after 2020 B9 MRS Lendava/Petišovci Connection to the production of natural gas User is the investor of the project 2019 B11 MRS Nasipi Trbovlje Connection of user and DSO Conceptual designs 2019 B14 Supply to users (Table 5) and other connection projects Connection of new users with mobile systems and adjustment of existing connection points Conceptual designs 2018 − 2027 B16 CNG MS Celje Connection of CNG filling station Conceptual designs 2018 B17 MRS Knauf Capacity increase for industrial consumer Conceptual designs 2018 B18 MRS Miklavž na Dravskem polju Connection of DSO Conceptual designs 2018 B27 MRS Šmarje pri Jelšah Connection of DSO Conceptual designs 2018 B43 MRS Škocjan/Šentjernej Connection of municipality Škocjan and Šentjernej Conceptual designs 2019 B45 MRS IZ Hoče; R13c Miklavž − Hoče Connection of DSO Conceptual designs 2018 C16 BMCS Rogatec bi-directional Provision of bi-directional capacities with Conceptual 2018

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 47 flow upgrade reverse flow designs In Table 23, all projects that have been approved by the Energy Agency and are in the implementation phase are presented. Table 23. FID projects # Project name Purpose Status 1 January 2017 Planned start of operations B1 MRS TE-TOL; M5 Vodice − Jarše, R51 Jarše − TE-TOL Connection of thermal energy plant (in connection with the A13 project Stage one: Vodice − Jarše) FID Connection contract Partial building permit acquired for most of the route and all facilities 2020 B2 MRS Godovič; R38 Kalce − Godovič Connection of DSO in the municipality of Idrija (in connection with the A6 project Stage one: Kalce – Godovič) FID Connection contract NSP prepared 2018 B9 MRS Lendava/Petišovci Connection to the production of natural gas FID Connection contract User is the investor of the project 2019 B17 MRS Knauf Capacity increase for industrial consumer FID Connection contract Conceptual designs 2018 B15 MRS Impol Adjustment to the demand characteristics of the user FID Connection contract Conceptual designs 2021 4.5 Assessment of options for the increase of energy efficiency In accordance with Article 30 of the Energy Act (EZ-1), the development plan must include an assessment of the potential for the increase of energy efficiency of gas and electricity infrastructure by means of load balancing and interoperability, connection with energy production plants, including microproduction, and define time dynamics and financial evaluation of planned investments and actual measures for cost-effective improvements in the network infrastructure. The company Plinovodi performs the following activities in the following areas: 1. Load balancing and interoperability of the transmission system In order to provide sufficient capacity for the required transmission system load and its interoperability with the neighbouring transmission systems, the company Plinovodi ensures coordinated development of the transmission system and interconnection points with the neighbouring transmission systems. At the end of 2014, the company Plinovodi completed a large-scale upgrade investment cycle, by which it provided additional urgently needed transmission capacity and substantially improved the operating characteristics of the transmission system. In the sense of ensuring energy efficiency, the company Plinovodi devotes a lot of attention to the regime of compressor station operation and the balancing of the transmission system, where both the number of operating hours and the operating settings of the compressor units are optimised in order to adequately load the transmission system and meet the conditions at the interconnection points with the neighbouring transmission systems. The successfully completed investment cycle, which provided the required transmission capacity and enabled the

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 48 further development of the transmission system, within the meaning of Article 15 of the Energy Efficiency Regulation, represents a very important contribution to increasing the efficiency of gas infrastructure. After the upgrade, the transmission system can, from the perspective of ensuring interoperability, enable the handling of transmission capacities according to the model of entry-exit points, where users can independently book the entry and exit capacities. Due to the upgrade, there are no more internal bottlenecks on the main trunk gas pipelines, and gas can be transmitted from one entry point practically to any exit point, which is an essential contribution in terms of ensuring the interoperability of the transmission system. The independent treatment of transmission capacity at entry and exit points has enabled the introduction of a virtual point of natural gas trading, which represents an additional contribution to the effectiveness of balancing the deviations between the takeover and delivery of natural gas to the holders of balance groups, and to ensuring the balance of the transmission system. The company Plinovodi has established a virtual point of natural gas trading and has been its operator since 2015. In order to improve the interoperability of the transmission system and the infrastructure standard for ensuring a secure supply of natural gas, the company Plinovodi will provide the possibility of bi-directional operation at the interconnection point with the Croatian transmission system in Rogatec in the following years. The connection between the Slovenian and Hungarian transmission systems will also contribute to increased interoperability of the Slovenian gas infrastructure, which is being planned by both neighbouring transmission system operators in several phases, taking into account the gradual increase in transmission capacity. 2. Connection with energy production plants, including microproduction In order to increase the energy efficiency of the transmission system, the company Plinovodi joined the modernisation of heating systems for natural gas, where the innovation for the contribution to reducing its own consumption of natural gas was also approved in the company in 2016. Thus, with the implementation of a heating system modification on five metering and regulation stations based on the analysis of own use for the heating of natural gas, the annual average natural gas savings was estimated at 16,250Sm3 , which corresponds to the emission of 30.5 tonnes of CO2 per year. The company Plinovodi will continue with the modernisation of heating systems in other metering and regulation stations, thus increasing the energy efficiency of the natural gas transmission system. In terms of ensuring energy efficiency, the company Plinovodi took advantage of the possibility of using the existing electrical equipment on the natural gas transmission system in connection with the electricity network within the system for tertiary frequency control, with the consumption management and dispersed production of electricity. The upgrade of the electrical equipment at the compressor station and the signing of the contract with the power generator enable the remote start of the backup diesel generator, which supplies the contracted amount of electricity for the needs of tertiary frequency control to the transmission power line. The company Plinovodi has already started with the preparation of an additional diesel generator for integration into the tertiary frequency control system.

In order to increase energy efficiency, the company Plinovodi has also decided to build a small, 69.9kW photovoltaic power plant at the company's headquarters in Ljubljana. The produced electricity is transferred to the network of the distribution system operator and will in the coming years represent a contribution to the energy efficiency, as well.

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 49 In the context of microproduction, connections of biomethane production devices to distribution networks or natural gas transmission systems on gas networks in Western Europe are expanding. The company Plinovodi monitors the intensity of the connection of biomethane production devices in Europe and supports the first project that is being prepared in Slovenia. 3. Investments and actual measures for cost-effective improvements in the network infrastructure In the company Plinovodi, energy efficiency is monitored by tracking environmental indicators within the framework of the established Environmental Management System according to the ISO 14001 standard. In addition to the comprehensive management of the environmental aspects of Plinovodi's activities, the system also includes cost control and efficient use of resources. Environmental indicators are set up to express the environmental and economic performance of business processes as clearly as possible. The measures for cost-effective improvements are linked to regular periodic evaluation of the following environmental indicators in the company Plinovodi: consumption of natural gas for own use, and cooling and heating of business premises, flue gas emissions, noise emissions, water consumption, electricity consumption and generation, heat energy consumption, fuel consumption, flue gas quantity, carbon footprint of the company, and the amount of disposed waste.

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 50 5 European dimension of natural gas supply In 2015, the European Commission took an integral approach to energy policy. Within the context of the Energy Union Package, it published the Framework Strategy for a Resilient Energy Union with a Forward-Looking Climate Change Policy (COM(2015) 80 final), declaring 5 key dimensions of operation:  Energy security, solidarity and trust;  A fully-integrated internal energy market;  Energy efficiency as a contribution to the moderation of energy demand;  Decarbonisation of the economy; and  An energy union for research, innovation and competitiveness. At the end of 2015, the European Commission published the first report on the state of the Energy Union (COM(2015) 572 final). Among other things, the report stresses the importance of the energy infrastructure for the operation of the integrated internal energy market. In this regard, the importance lies in connections between Member States to provide access to energy from various sources and routes. Suitable infrastructure connections are also essential for ensuring adequate energy security. The European Commission urges the Member States to devote special attention to the projects of common interest specified in the second list of projects of common interest. Furthermore, the Commission also points out the need to improve the integration of national natural gas markets on a regional level.

5.1 Development of exchanges with other countries After four consecutive years of decline in natural gas consumption in Europe, the latest Eurogas11 estimates specify a 7% increase in natural gas consumption in the EU in 2015 compared to 2014. Particularly in the first half of 2015, consumption was 9% higher than in the same period of the previous year. The increase in demand for natural gas can mainly be attributed to the seasonal and annual variable weather conditions. The last two years have been unusually warm (2014 was a record warm year for certain EU countries), while 2015 was close to the average. Considering the changing weather conditions, natural gas is particularly relevant for heating and cooling, since it has the capacity to provide high and varying amounts of energy in households.

In addition to climate conditions, the higher consumption of natural gas was also influenced by other factors, e.g. when hydroelectric energy production decreased in Germany and Italy natural gas filled the gap in the energy supply. The demand for natural gas for the production of electricity has increased in some of the EU countries (e.g. France with increased demand in industry and Austria with increased use of CHP/cogeneration), but low coal prices continued to have significant impact on the demand for natural gas. With the recovery of the European economy, there was a slight increase in demand for gas in the industrial sector.

The forecasts of natural gas consumption until 2050, based on the political commitments of the European Council of October 201412 and defining the transition to a low-carbon society, are optimistic 11 http://www.eurogas.org/uploads/media/Eurogas_Press_Release_-_Gas_supply_in_ 2015_responds_to_increased_consumer_demand.pdf 12 Energy Policies of IEA Countries, European Union − 2014 Review, International Energy Agency (IEA), OECD/IEA, 2014

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 51 in respect to the 2020 − 2035 period13 . The adopted commitments set out a 40% reduction in greenhouse gas emissions in the EU from 2020 to 2030. According to these commitments, the consumption of natural gas will gradually decrease in the future, with its share in the balance sheet of all consumed energy dropping from 25% in 2010 to 22% in 2030 and 18% in 2050. 5.2 Supply of natural gas to EU countries and access to natural gas sources More than half of the energy for the supply of EU countries is imported. The EU countries are dependent on imports of crude oil (nearly 90%) and natural gas (66%) and to a lesser extent solid fuels (42%) and nuclear fuels (40%). In relation to the security of energy supply, the issue of strong dependence of certain countries on a single external supplier remains. This is particularly problematic where natural gas and electric energy are concerned. As many as 6 Member States in the EU depend on Russia as the sole supplier of the entire gas import volume and in three of these countries natural gas accounts for more than one quarter of their total energy needs. In the year 2013, the energy supply from Russia represented 39% of the natural gas imports in the EU or 27% of the gas consumption in the EU. Russia has exported 71% of its gas to Europe, most of it to Germany and Italy. The security of energy supply to the EU must be addressed within the increasing demand for energy worldwide. This demand is supposed to increase by 27% in the next 15 years, which will result in substantial changes regarding energy supply and trade flows. (Source: European strategy for the security of energy supply14 ) In the past period, especially in the year 2014, the natural gas market was characterised by concern about potential interruptions of Russian natural gas supply, particularly through Ukraine. The European Council of March 2014 called the European Commission to conduct an in-depth study on energy security and to present a plan on how to reduce the energy dependence15 , as the EU imports nearly 70% of the natural gas it requires. This imported share is estimated to remain the same until 2020, increasing somewhat after this period and reaching between 3,800 and 4,000TWh from 2025 to 2030. In the year 2013, 39% of gas was imported from the Russian Federation, 33% from Norway and 22% from North Africa (Algeria, Libya). Other sources are minor, reaching approximately 4%. The imports of liquefied natural gas have even reached 22% of all gas consumed in 2010, but dropping back to 15% due to lower prices on the Asia-Pacific gas market. We estimate that the role of liquefied natural gas as the main potential source for diversification will be maintained if not increased in the following years. The new supply of liquefied natural gas from North America, Australia, Qatar and new sites in East Africa will likely increase the size and liquidity of global liquefied natural gas markets. Among other projects of this type, the first liquefication plant on the East Coast of the United States should be mentioned. Its planned start of operations is between 2015 and 2017, and its planned capacity is approximately 270TWh/year. The possibilities for increased production can also be found in Norway (up to 1,300TWh/year in 2018 from the current 1,200TWh/year) and North Africa, as well as the Mediterranean region (potentially large volumes of unexplored or untapped hydrocarbon resources and the advantage of geographical proximity).

13 Eurostat, newsrelease, 25/2015, 9. 2. 2015 14 http://eur-lex.europa.eu/legal-content/SL/TXT/PDF/?uri=CELEX:52014DC0330&fr om=EN 15 European Council, European Council (23. and 24. 10. 2014) – Conclusions, EUCO 169/14, Brussels, 24. 10. 2014

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 52 Figure 29. Sources of natural gas supply to EU-28 countries (2014) Russia is the largest individual natural gas supplier to EU-28 countries. In 2014, its share remains the same as in 2013 (27%). European production (production of the EU and Norway) accounted for 55% of all EU-28 needs. Data source: Eurogas: Statistical report 2015 Figure 30. Transport of imported natural gas for EU-28 countries (2014) The graph shows the manner in which natural gas was imported to EU-28 countries in 2014. The year before, sea transport share was one per cent higher (16%). In 2014, a substantial part of the LNG transported by ship was diverted to the Asian market due to increased demand and the resulting higher prices. Data source: Eurogas: Statistical report 2015 5.3 REGULATION (EU) No. 347/2013 on guidelines for trans-European energy infrastructure With the Regulation (EU) No. 347/2013, the European Commission has set out the priority corridors and areas important for the development of an integrated energy network. The Regulation affects the fields of spatial planning, environmental impact assessments (cross-border included) and public consultation procedures. It also provides the so-called priority corridors and criteria for designating Projects of Common Interest (PCI). The Regulation defines priority corridors and areas of trans- European energy network infrastructure. The Republic of Slovenia and its gas infrastructure is ranked in this Regulation under the following two priority corridors:  North-South gas interconnections in Central Eastern and South-eastern Europe ("NSI East Gas"): regional gas interconnections between the Baltic Sea region, the Adriatic and Aegean Seas and the Black Sea for extension and enhanced security of gas supply routes. Member States concerned are: Austria, Bulgaria, Cyprus, Czech Republic, Germany, Greece, Hungary, Italy, Poland, Romania, Slovakia and Slovenia; EU production 34% Norway and other sources 26% Russia 27% Algeria 8% Qatar 5% LNG transport by ship 15% Pipelines 85%

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 53  Southern Gas Corridor ("SGC"): transmission of gas from the Caspian Basin, Central Asia, the Middle East and Eastern Mediterranean Basin to the EU to enhance diversification of gas supply. Member States concerned are: Austria, Bulgaria, Czech Republic, Cyprus, France, Germany, Hungary, Greece, Italy, Poland, Romania, Slovakia and Slovenia. 5.3.1 PCI 2015 list On 18 November 2015, the European Commission adopted the second list of 195 key energy infrastructure PCI projects (Projects of Common Interest) that will make it easier for Europe to achieve the energy and climate goals (C(2015) 8052 final). The PCI 2015 list comprises 108 projects in the field of electricity, 77 in the field of gas, 7 in the field of oil and 3 projects in the field of smart networks. The balance between projects in the field of electricity and gas was also achieved due to a clear definition of priority projects in the regional context.

The projects, defined as the Projects of Common Interest, are subject to certain advantages:  Enhanced transparency and public consultation;  Simplified authorisation procedures (the binding time limit is three and a half years);  Better, quicker and simplified environmental assessment;  S single national authority operating as a "one-stop" point for authorisation procedures;  Improved regulatory treatment with allocation of costs based on net benefit and regulatory incentives;  Possibility of financial aid under the Connecting Europe Facility (CEF) in the form of grants and innovative financial instruments.

In order for a project to be included in the PCI list, it must be proven that the project brings significant benefits for at least two Member States. In addition, it must contribute to market integration and enhance competition, as well as increase the security of energy supply and reduce carbon dioxide emissions. Table 23. List of projects included in the PCI 2015 list # Project PCI 2015 C3 R15/1 Pince − Lendava − Kidričevo X C12 Upgrade of interconnection Rogatec X C4 Upgrade of interconnection Ceršak X C5 CS Kidričevo − extension stage 2 X The above projects are included in the PCI 2015 list in the context of two project groups, namely:  6.23 Interconnection Hungary − Slovenia (Nagykanizsa − Tornyiszentmiklós (HU) − Lendava (SI) − Kidričevo)  6.26 The group Croatia − Slovenia − Austria via Rogatec, which includes the following projects:  6.26.1 Interconnection Croatia − Slovenia (Lučko − Zabok − Rogatec) (CRO)  6.26.2 CS Kidričevo, extension stage 2 (SI)  6.26.3 Compressor stations on the Croatian gas transmission system (CRO)  6.26.4 GCA 2014/04 Murfeld (AT)

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 54  6.26.5 Upgrade of interconnection Ceršak/Murfeld (SI)  6.26.6 Upgrade of interconnection Rogatec (SI) The second list (PCI 2015) of key energy infrastructure projects is valid until the end of 2017, and in cooperation with the Member States, the European Commission has already begun with the procedures for defining key energy infrastructure projects that will be placed on the third list of key energy infrastructure projects. The new list will be published at the end of 2017 and will be valid in 2018 and 2019. In the phase of applying the candidates for the Projects of Common Interest, the company Plinovodi has applied to the European Commission the projects within the existing PCI 6.23 interconnections Hungary — Slovenia (Nagykanizsa — Tornyiszentmiklós (HU) — Lendava (SI) — Kidričevo) and 6.26 group of projects on the corridor Croatia — Slovenia — Austria via Rogatec. Figure 31. Schematic map of the placement of the company Plinovodi's development plan in the PCI projects 5.4 ENTSOG The establishment of the European Network of Transmission System Operators for Gas (ENTSOG) was provided for by Regulation No. 715/2009/EC. ENTSOG was founded on 1 December 2009 with the objective of accomplishing the following tasks: to facilitate the formation and operations of a single European internal market and cross-border trading in natural gas, as well as to ensure optimal management, coordinated operation and technical evolution of the European natural gas transmission system by preparing and proposing adequate network codes.

The company Plinovodi is one of the founding members of ENTSOG. Its current membership structure is: 45 European TSOs and 2 associated partners (from Member States that are currently still operating

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 55 under the suspension of the requirements deriving from Regulation No. 715/2009) from 26 EU Member States and 4 observers from Europe (Norway, Switzerland, Ukraine, Macedonia). The central task of ENTSOG is to prepare network codes, the EU ten-year development plan, the "Winter Outlook" and "Summer Outlook" reports, to inform the interested public, bring together TSOs and cooperate in the preparation of 3-year regional investments plans within the EU. Figure 32. ENTSOG members 5.4.1 TYNDP One of the central objectives of the TYNDP (Ten Year Network Development Plan) is to provide an overview of trans-European infrastructure, thereby detecting potential gaps in future investments. The European 10-year development plan aims to cover a wider dynamics of the European gas market in relation to supply potential, market integration and security of supply.

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 56 ENTSOG publishes the 10-year development plans on its website: http://www.entsog.eu/publications/tyndp. In accordance with the requirements of Regulation (EC) No. 715/2009, the TYNDP is prepared every two years. When preparing the European TYNDP, the company Plinovodi has been cooperating with ENTSOG since the preparation of the first plan in 2010. Thus, the projects of the Slovenian TSO are summarised in the European TYNDP and coordinated with the national 10-year development plans. The TSO guarantees that the European TYNDP includes all projects that are listed in the national 10-year development plan and that can be qualified as affecting the European gas infrastructure. When preparing the national 10-year development plan, the TSO always ensures that the forecasts of estimated transmitted quantities and booked transmission capacities are coordinated. With the coordination of the development plans, the transparency and impartiality in development of gas transmission infrastructure can therefore be assured.

The basis for registering projects in the ENTSOG TYNDP is their involvement in the national development plan. As a rule, we apply projects of international significance that interconnect with the neighbouring transmission systems in the TYNDP. In Annex 2 Planned transmission infrastructure, there are the project codes from the ENTSOG TYNDP entered in the assembly tables, which show which projects are included in both development plans and under what code. In the beginning of 2016, the preparation of the 5th edition of the European Ten-Year Network Development Plan (TYNDP) for a period of 20 years (2017−2037) has begun. A 6-week public consultation was held from 10 December 2016 and 2 February 2017. After reading all the remarks and comments received, the document was officially published on the ENTSOG website at the end of April 2017.

5.4.2 GRIP CEE and GRIP Southern Corridor In accordance with the requirement for the promotion and establishment of regional cooperation as laid down in Directive 2009/73/EC OF THE EUROPEAN PARLIAMENT AND THE COUNCIL of 13 July 2009 concerning common rules for the internal market in natural gas and repealing Directive 2003/55/EC (Article 7) and Regulation (EC) No. 715/2009 OF THE EUROPEAN PARLIAMENT AND THE COUNCIL of 13 July 2009 on conditions for access to the natural gas transmission networks and repealing Regulation (EC) No 1775/2005 (Article 12), the TSOs within ENTSOG publish a Gas Regional Investment Plan (GRIP) every two years, which forms the basis for the adoption of decisions regarding investment. As the Slovenian TSO, the company Plinovodi takes part in the preparation of two GRIP documents, namely GRIP Southern Corridor and GRIP Central Eastern Europe (CEE). GRIP Southern Corridor is prepared in cooperation with TSOs from Greece, Italy, Austria, Bulgaria, Croatia, Hungary, Romania, Slovakia and Slovenia, and GRIP Central Eastern Europe is prepared in cooperation with operators from Austria, Germany, Croatia, Bulgaria, Hungary, Poland, Romania, Slovakia and Slovenia. The preparation of new GRIP documents for the 2017 – 2026 period began in mid-2016. GRIP CEE was completed and published in August 2017, and GRIP Southern Corridor in September 2017.

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 57 ANNEXES ANNEX 1 Availability of the transmission network and distribution networks by region and municipality ANNEX 2 Planned transmission infrastructure

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 58 Annex 1 Availability of the transmission network and distribution networks by region and municipality Figure 33. Pomurje region Municipalities with DSO Municipalities with a transmission system without DSO Municipalities without a transmission system Beltinci Petrol Črenšovci, Križevci, Razkrižje, Velika Polana, Veržej Apače, Cankova, Gornji Petrovci, Grad, Hodoš/Hodos, Kobilje, Kuzma, Moravske Toplice, Puconci, Rogašovci, Sveti Jurij, Šalovci, Tišina Dobrovnik Petrol Gornja Radgona Petrol Lendava/Lendva Mestni plinovodi Ljutomer Mestni plinovodi Murska Sobota Mestni plinovodi Odranci Petrol Radenci Mestni plinovodi Turnišče Petrol

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 59 Availability of the transmission network and distribution networks by region and municipality Figure 34. Koroška region Municipalities with DSO Municipalities with a transmission system without DSO Municipalities without a transmission system Dravograd Petrol Energetika Črna na Koroškem, Mislinja, Podvelka, Radlje ob Dravi, Ribnica na Pohorju, Vuzenica Mežica Petrol Energetika Muta Petrol Energetika Prevalje Petrol Energetika Ravne na Koroškem Petrol Energetika Slovenj Gradec JKP Slovenj Gradec

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 60 Availability of the transmission network and distribution networks by region and municipality Figure 35. Podravje region Municipalities with DSO Municipalities with a transmission system without DSO Municipalities without a transmission system Hoče − Slivnica Plinarna MB Dornava, Hajdina, Juršinci, Kidričevo, Majšperk, Oplotnica, Pesnica, Sveti Tomaž, Starše Benedikt, Cerkvenjak, Cirkulane, Destrnik, Duplek, Gorišnica, Kungota, Lenart, Lovrenc na Pohorju, Makole, Markovci, Poljčane, Podlehnik, Selnica ob Dravi, Sveta Ana, Sveta Trojica v Slov. goricah, Sveti Andraž v Slov. goricah, Sveti Jurij v Slovenskih goricah, Trnovska vas, Videm, Zavrč, Žetale Maribor Plinarna MB Miklavž na Dravskem polju Plinarna MB Ormož Mestni plinovodi Ptuj Adriaplin Rače − Fram Plinarna MB Ruše Plinarna MB Slovenska Bistrica Petrol Središče ob Dravi Mestni plinovodi Šentilj Plinarna MB

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 61 Availability of the transmission network and distribution networks by region and municipality Figure 36. Savinjska region Municipalities with DSO Municipalities with a transmission system without DSO Municipalities without a transmission system Celje Energetika Celje Braslovče, Kozje, Podčetrtek, Šmarje pri Jelšah, Šmartno ob Paki, Tabor, Vransko Bistrica ob Sotli, Dobje, Dobrna, Gornji Grad, Ljubno, Luče, Mozirje, Nazarje, Rečica ob Savinji, Solčava, Vitanje Laško Adriaplin Polzela Mestni plinovodi Prebold Mestni plinovodi Radeče Adriaplin Rogaška Slatina Adriaplin Rogatec Petrol Slovenske Konjice Petrol Šentjur Adriaplin Šoštanj CS Velenje Štore Adriaplin Velenje CS Velenje Vojnik Adriaplin Zreče Mestni plinovodi Žalec Mestni plinovodi

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 62 Availability of the transmission network and distribution networks by region and municipality Figure 37. Zasavska region Municipalities with DSO Municipalities with a transmission system without DSO Municipalities without a transmission system Hrastnik Mestni plinovodi Trbovlje Zagorje ob Savi Adriaplin Availability of the transmission network and distribution networks by region and municipality Figure 38. Spodnje-posavska region Municipalities with DSO Municipalities with a transmission system without DSO Municipalities without a transmission system Brežice Adriaplin Kostanjevica na Krki Krško Adriaplin Sevnica Javno podjetje

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 63 plinovod Sevnica Availability of the transmission network and distribution networks by region and municipality Figure 39. Osrednjeslovenska region Municipalities with DSO Municipalities with a transmission system without DSO Municipalities without a transmission system Brezovica Energetika Ljubljana Horjul, Lukovica, Moravče Borovnica, Dobrepolje, Grosuplje, Ivančna Gorica, Šmartno pri Litiji, Velike Lašče Dobrova − Polhov Gradec Energetika Ljubljana Dol pri Ljubljani Energetika Ljubljana Domžale Petrol Ig Energetika Ljubljana Kamnik Adriaplin Komenda Petrol Litija Istrabenz plini Ljubljana Energetika Ljubljana Logatec Adriaplin Log − Dragomer Energetika Ljubljana Medvode Energetika Ljubljana Mengeš Petrol Škofljica Energetika Ljubljana Trzin Petrol Vodice Petrol Vrhnika CS Vrhnika

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 64 Availability of the transmission network and distribution networks by region and municipality Figure 40. Notranjsko-kraška region Municipalities with DSO Municipalities with a transmission system without DSO Municipalities without a transmission system − − Postojna Bloke, Cerknica, Ilirska Bistrica, Loška dolina, Pivka M3

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 65 Availability of the transmission network and distribution networks by region and municipality Figure 41. Gorenjska region Municipalities with DSO Municipalities with a transmission system without DSO Municipalities without a transmission system Bled Adriaplin Bohinj, Gorenja vas − Poljane, Jezersko, Kranjska Gora, Preddvor, Železniki, Žiri Cerklje na Gorenjskem Petrol Jesenice JEKO-IN Kranj Domplan Naklo Domplan Gorje Adriaplin Radovljica Petrol Šenčur Domplan Petrol Škofja Loka Loška komunala Tržič Petrol Žirovnica Plinstal

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 66 Availability of the transmission network and distribution networks by region and municipality Figure 42. Goriška region Municipalities with DSO Municipalities with a transmission system without DSO Municipalities without a transmission system Ajdovščina Adriaplin Kanal, Miren − Kostanjevica, Renče − Vogrsko Bovec, Brda, Cerkno, Idrija, Kobarid, Tolmin Nova Gorica Adriaplin Šempeter − Vrtojba Adriaplin Vipava Adriaplin

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 67 Availability of the transmission network and distribution networks by region and municipality Figure 43. Obalno-kraška region Municipalities with DSO Municipalities with a transmission system without DSO Municipalities without a transmission system Sežana* Petrol Divača, Hrpelje − Kozina, Izola/Isola, Komen, Piran/Pirano Koper/Capodistria** Istrabenz plini * Connected to the Italian TSO ** Distribution network for petroleum gas

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 68 Availability of the transmission network and distribution networks by region and municipality Figure 44. Jugovzhodna (SE) region Municipalities with DSO Municipalities with a transmission system without DSO Municipalities without a transmission system Novo mesto Istrabenz plini Straža, Škocjan, Šmarješke Toplice Črnomelj, Dolenjske Toplice, Kočevje, Kostel, Loški Potok, Metlika, Mirna, Mirna Peč, Mokronog − Trebelno, Osilnica, Ribnica, Semič, Sodražica, Šentjernej, Šentrupert, Trebnje, Žužemberk

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 69 Annex 2 A − Increase in operational security B − Connections C − Development of interconnection points with the neighbouring transmission systems

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 70 ANNEX 2 Status Level of Planned Listed in PCI Project inclusion in DP 2017 − 2026 # Project name Purpose Technical characteristics 1 January 2017 treatmen t 1 January 2017 start of operation ENTSOG TYNDP 2017 with label commo n Europe an interes t A − INCREASE IN OPERATIONAL SECURITY A1 Loop to Zreče Stage one R21AZ Konjiška vas − Oplotnica System loop, increase of transmission capacity and operational security New construction, L = 7km, D = 150mm, DP = 50bar Non-FID NSP prepared after 2020 X Stage two R21AZ Oplotnica − Zreče Increase of transmission capacity and operational security, allows for connection of new municipality New construction, L = 5.3km, D = 150mm, DP = 50bar nd Stage three P21AZ1 Oplotnica − Slovenska Bistrica Increase of transmission capacity and operational security, allows for connection of new municipality New construction, L = 8.9km, D = 150mm, DP = 50bar nd A2 R51a Jarše − Sneberje System loop New construction, L = 2.5km, D = 300mm, DP = 30bar, DMRS Jarše Non-FID NSP prepared after 2020 X A3 R51b TE-TOL Fužine/Vevče System loop, allows for connection of DSO to MOL New construction, L = 4.5km, D = 300mm, DP = 30bar, MRS Dobrunje Non-FID NSP prepared after 2020 X A4 R51c Kozarje − Vevče System loop New construction, L = 17.5km, D = 300mm, DP = 30bar, MRS Kozarje Non-FID NSP(p) after 2020 X A5 Dravograd − Ruše − Maribor Stage one Dravograd − Ruše System loop; allows for connection of new municipalities New construction, L = 45km, D = 250mm, DP = 50bar Non-FID Conceptu al designs nd X Stage two Ruše − Maribor System loop New construction, L = 10km, D = 250mm, DP = 50bar nd A6 Kalce − Godovič − Žiri − Škofja Loka Stage one Kalce − Godovič System loop; allows for connection of new municipalities New construction, L = 11km, D = 150mm, DP = 70bar Non-FID NSP prepared 2018 X Stage two Godovič − Žiri − Škofja Loka System loop; allows for connection of new municipalities New construction, L = 29km, D = 150mm, DP = 70bar Conceptu al designs nd A7 Škofja Loka − Medvode − Ljubljana System loop New construction, L = 15km, D = 200mm, DP = 50bar Non-FID Conceptu al designs nd X A8 Laško − Hrastnik − Radeče System loop New construction, L = 22km, D = 200mm, DP = 50bar Non-FID Conceptu al designs nd X A9 R12A M1 − Lenart − MRS Gornja Radgona System loop; allows for connection of new municipalities New construction, L = 30km, D = 250mm, DP = 70bar Non-FID Conceptu al designs nd X A10 Šoštanj − Dravograd System loop New construction, L = 24km, D = 200mm, DP = 70bar Non-FID Conceptu al designs nd X A11 M4 section Podčetrtek Displacement of pipeline due to an adjustment to the requirements of third parties New construction, L = 4km, D = 400mm, DP = 50bar Non-FID Conceptu al designs nd X A12 M2 section Trnovlje Displacement of pipeline due to settlement modifications of MOC New construction, L = 2km, D = 400mm, DP = 70bar Non-FID Conceptu al designs nd X A13 M5 Vodice − Jarše − Novo mesto

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 71 Stage one: Vodice − Jarše System loop; allows for connection of R51 Jarše − TE-TOL, MRS TE-TOL New construction, L = 66km, D = 400mm, DP = 70bar Non-FID Conceptu al designs 2020 X Stage two: Jarše − Grosuplje System loop; allows for connection of new municipalities nd Other stages: Grosuplje − Novo mesto System loop; allows for connection of new municipalities nd A14 M6 Ajdovščina − Lucija System pipeline; allows for connection of new municipalities New construction, L = 45.9km, D = 250mm, DP = 70bar; L = 17.5km, D = 200mm, DP = 25bar; L = 5.5km, D = 100mm, DP = 70bar Non-FID NSP prepared after 2020 TRA-N- 365 X A15 Management Centre Technology and facility Non-FID Conceptu al designs after 2020 X A16 R45 Novo mesto − Bela Krajina System pipeline; allows for connection of new municipalities New construction, L = 39km, D = 400mm, DP = 50bar, MRS Črnomelj, MRS Metlika, MRS Semič Capacity 3.15GWh/d (0.298 mio Sm3/d) Non-FID NSP prepared nd X A17 R25A/1 Trojane − Hrastnik System pipeline; increase of transmission capacity and operational security; connection of new users New construction, L = 21.8km, D = 400mm, DP = 70bar, MRS TTPP, Capacity 13.72GWh/d (1.296 mio Sm3/d) Non-FID NSP prepared nd X A18 R29 Jesenice − Kranjska Gora Stage one Rehabilitation of the gas transmission system at the energy bridge New construction, L = 25km, D = 200/250mm, DP = 50bar Non-FID Conceptu al designs after 2020 Stage two Increase of transmission capacity and operational security, allows for connection of DSO nd ANNEX 2 Status Level of Planned Listed in PCI Project inclusion in DP 2017 − 2026 # Project name Purpose Technical characteristics 1 January 2017 treatmen t 1 January 2017 start of operation ENTSOG TYNDP 2017 with label commo n Europe an interes t B − CONNECTIONS B1 MRS TE-TOL; M5 Vodice − Jarše, R51 Jarše − TE-TOL Connection of thermal energy plant New construction, section M5 Vodice − Jarše, L = 16km, D = 400mm, DP = 50bar, section R51 Jarše − TE- TOL, L = 2.8km, D = 250mm, DP = 50bar, MRS TE-TOL, Capacity: 13.97GWh/d (1.32 mio Sm3/d) FID Connection contract Partial BP acquired for most of the route and all facilities 2020 X B2 MRS Godovič; R38 Kalce − Godovič Connection of DSO in the municipality of Idrija New construction, MRS Godovič, Capacity: 1.52GWh/d (0.144 million Sm3/d) FID Connection contract NSP prepared 2018 X B3 MRS Sežana, MRS Kozina, MRS Dekani, MRS Koper, MRS Izola, MRS Lucija Connection of DSO in the municipalities of Sežana, Hrpelje − Kozina, Koper, Izola, Piran; connection with the system pipeline M6 New construction, MRS Sežana, MRS Kozina, MRS Dekani, MRS Koper, MRS Izola, MRS Lucija Query NSP prepared after 2020 TRA-N- 365 X

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 72 B4 MRS Cerklje; R297B Šenčur − Cerklje Connection of DSO in the municipality of Cerklje New construction, L = 2.9km, D = 200mm, DP = 50bar, MRS Cerklje, Capacity 2.54GWh/d (0.240 mio Sm3/d) Query NSP prepared nd X B5 MRS TTPP; R25A/1 Trojane − TTPP Connection of thermal power station New construction of pipeline and MRS Query NSP prepared nd X B6 MRS TOŠ; R52 Kleče – TOŠ Connection of thermal energy plant New construction, L = 5.1km, D = 250mm, DP = 70bar, MRS TOŠ, Capacity 6.99GWh/d (0.660 mio Sm3/d) Query NSP prepared nd X B7 MRS Cerknica Connection of DSO and industrial users New construction of MRS Query Conceptu al designs nd X B8 CNG MS/MRS Connection of users with CNG filling stations Large number of new MS/MRS constructions Query Conceptu al designs 2018 − 2027 X B9 MRS Lendava/ Petišovci Connection to the production of natural gas New construction of MRS FID Connection contract User is the investor of the project 2019 X B10 MRS Marjeta Connection of DSO in the municipality of Starše MWPB, adaptation of MRS Query Conceptu al designs nd X B11 MRS Nasipi Trbovlje Connection of user and DSO MWPB, new construction of MRS Connection approval Conceptu al designs 2019 X B12 MRS Golnik Connection of DSO MWPB, adaptation of MRS Connection approval Conceptu al designs 2017/2018 X B13 MRS Brestanica Adjustment to the demand characteristics of the power station (stage one and two) MWPB, adaptation of MRS, new construction of MRS Connection approval Conceptu al designs 2018/2019 X B14 Supply to users (Table 5) and other connection projects Connection of new users with mobile systems and adjustment of existing connection points New construction of mobile handover systems Query Conceptu al designs 2018 − 2027 X B15 MRS Impol Adjustment to the demand characteristics of the user MWPB, adaptation of MRS FID Connection contract Conceptu al designs 2021 X B16 CNG MS Celje Connection of CNG filling station MWPB Connection approval phase Conceptu al designs 2018 X B17 MRS Knauf Capacity increase for industrial consumer MWPB, adaptation of MRS, new construction of MRS FID Connection contract Conceptu al designs 2018 X B18 MRS Miklavž na Dravskem polju Connection of DSO New construction of MRS Connection approval Conceptu al designs 2018 X B19 MRS Bela Connection of DSO and industrial users New construction of MRS Query Conceptu al designs 2021 X B20 MRS Halda Connection of industrial users New construction of MRS Query Conceptu al designs 2021 X B21 MRS Desni Breg Connection of DSO and industrial users New construction of MRS Query Conceptu al designs 2021 X B22 MRS Šoštanj Connection of new industrial consumers New construction, L = 4km, D = 100mm, MRS Šoštanj 2 Query Conceptu al designs nd X B23 MS Primorje CGM Adjustment to the demand characteristics of the consumer MWPB, adaptation of MRS Query Conceptu al designs nd X B24 MS Labore Connection of DSO for industrial consumer MWPB Query Conceptu al designs nd X B25 MRS Rogatec ŠP Connection of DSO New construction of MRS Connection Conceptu 2017/2018 X

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 73 approval al designs B26 MRS Pesnica Connection of DSO New construction of MRS Query Conceptu al designs nd X B27 MRS Šmarje pri Jelšah Connection of DSO New construction of MRS Query Conceptu al designs 2018 X B28 MRS Oplotnica Connection of DSO New construction of MRS Query Conceptu al designs nd X B29 MRS Braslovče Connection of DSO New construction of MRS Query Conceptu al designs nd X B30 MRS Videm Connection of DSO New construction of MRS Query Conceptu al designs nd X B31 MRS Kidričevo Connection of DSO New construction of MRS Query Conceptu al designs nd X B32 MRS Sveti Tomaž Connection of DSO New construction of MRS Query Conceptu al designs nd X B33 MRS Štore Adjustment to the demand characteristics of the user New construction, variant technical solutions Query Conceptu al designs nd X B34 MRS Grosuplje, MRS Ivančna Gorica, MRS Trebnje, MRS Mirna Peč, MRS Mirna Connection of DSO in the municipalities of Grosuplje, Ivančna Gorica, Trebnje, Mirna Peč, Mirna; connection with the system pipeline M5 New construction of MRS Query Conceptu al designs nd X B35 MRS Škofljica/Ig Connection of DSO New construction of MRS Query Conceptu al designs nd X B36 MRS Komenda Connection of DSO New construction of MRS Query Conceptu al designs nd X B37 MRS Lukovica Connection of DSO New construction of MRS Query Conceptu al designs nd X B38 MRS Brezovica/Log Dragomer Connection of DSO New construction of MRS Query Conceptu al designs nd X B39 MRS Svilanit Connection of DSO MWPB, adaptation of MRS Connection approval Conceptu al designs nd X B40 MRS Šobec Connection of DSO New construction of MRS Connection approval phase Conceptu al designs 2017/2018 X B41 MRS Semič Connection of DSO; connection with the system pipeline R45 New construction of MRS Query Conceptu al designs nd MRS Metlika X MRS Črnomelj B42 MRS Horjul Connection of DSO New construction of MRS Query Conceptu al designs nd X B43 MRS Škocjan/ Šentjernej Connection of municipality Škocjan and Šentjernej New construction of MRS Query Conceptu al designs 2019 X B44 MS Kandija Adjustment to the demand characteristics of the consumer New construction of MRS Query Conceptu al designs nd X B45 MRS IZ Hoče; R13c Miklavž − Hoče Connection of DSO New construction of MRS and pipeline Connection approval phase Conceptu al designs 2018 X B46 MRS Verovškova Adjustment to the demand characteristics of the user and connection of DSO MWPB, adaptation of MRS Connection approval phase Conceptu al designs 2017/2018 B47 MRS Kranjska Gora Connection of DSO; connection with the system pipeline R29 Jesenice − Kranjska Gora New construction of MRS Query Conceptu al designs nd B48 MRS Gorenje Adjustment to the demand characteristics of the user and connection of DSO New construction of MRS Query Conceptu al designs 2017/2018 B49 MRS Trbovlje Adjustment to the demand characteristics MWPB, adaptation of MRS Query Conceptu al designs 2017/2018

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 74 of the user B50 MRS Novo Celje Adjustment to the demand characteristics of the user MWPB, adaptation of MRS Query Conceptu al designs nd B51 MRS Krško Adjustment to the demand characteristics of the user MWPB, adaptation of MRS Query Conceptu al designs nd B52 MRS Solkan Adjustment to the demand characteristics of the user MWPB, adaptation of MRS Query Conceptu al designs 2017/2018 B53 MRS Opekarna (Straža) Connection of new industrial consumers MWPB, adaptation of MRS Query Conceptu al designs 2017/2018 B54 MRS Podčetrtek Connection of users New construction of MRS Query Conceptu al designs nd B55 MRS Kozje Connection of users New construction of MRS Query Conceptu al designs nd B56 MRS Vransko Connection of users New construction of MRS Query Conceptu al designs nd B57 MRS Borovnica Connection of users New construction of MRS Query Conceptu al designs nd B58 MRS Šmartno ob Paki Connection of DSO New construction of MRS Query Conceptu al designs nd ANNEX 2 Status Level of Planned Listed in PCI Project inclusion in DP 2017 − 2026 # Project name Purpose Technical characteristics 1 January 2017 treatmen t 1 January 2017 start of operation ENTSOG TYNDP 2017 with label commo n Europe an interes t C − DEVELOPMENT OF INTERCONNECTION POINTS WITH THE NEIGHBOURING TRANSMISSION SYSTEMS C1 CS Ajdovščina extension Stage one Adjustment to the operational parameters of the Italian TSO’s transmission system and reverse flow One compressor unit; power up to 5MW Non-FID NSP prepared after 2020 TRA-N- 092 X Stage two LNG North Adriatic Two compressor units with total power of up to 20MW Connection to M3/1 nd TRA-N- 093 C2 Reconstruction of M3 at section CS Ajdovščina − Miren with branches Adjustment to the operational parameters of the Italian TSO’s transmission system (73.9bar) + BMCS Vrtojba New construction, L = 11km, D = 500mm, DP = 73.9bar; Initial capacity 25.40GWh/d (2.4 mio Sm3/d), BMCS Vrtojba Non-FID NSP prepared after 2020 TRA-N- 108 X Adjustment to the operational parameters of the Italian TSO’s transmission system (100bar) New construction, L = 20km, D = 500mm, DP = 100bar; Capacity 62.99GWh/d (5.952 mio Sm3/d) nd C3 R15/1 Pince − Lendava − Kidričevo Stage one: Pince − Lendava Interconnector with the Hungarian TSO New construction, L = 73km (9km, 21km, 43km), D = 500mm, DP = 100bar; Capacity 38.1GWh/d (3.6 mio Sm3/d), up to three compressor units with total power of up to 5 MW Non-FID NSP(p) after 2020 TRA-N- 112 X X Stage two: Lendava − Ljutomer Stage three: Ljutomer − Kidričevo CS Kidričevo − extension stage 3

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 75 C4 Upgrade of interconnection Ceršak (M1/3 interconnection Ceršak) Interconnector with the Austrian TSO, adjustment to the operational parameters of the Austrian TSO’s transmission system New construction, L = 200m, D = 800mm, DP = 70bar; Capacity 181.35GWh/d (17.135 mio Sm3/d) Non-FID NSP prepared after 2020 TRA-N- 389 X X C5 CS Kidričevo − extension stage 2 Improvement of operational parameters in M1/1 and M2/1 New construction, up to three compressor units with total power of up to 30MW Non-FID NSP prepared after 2020 TRA-N- 094 X X C6 CS Vodice II Improvement of operational parameters in M2, M2/1, M3, M3/1, M5, M10 New construction, up to three compressor units with total power of up to 30MW Non-FID Conceptu al designs nd X C7 M3/1a Šempeter − Ajdovščina Interconnector with the Italian TSO, LNG North Adriatic New construction, L = 30km, D = 1100mm, DP = 100bar; Capacity 340GWh/d (32.126 mio Sm3/d) Non-FID NSP(p) nd TRA-N- 099 X C8 M3/1b Ajdovščina − Kalce Interconnector with the Italian TSO, LNG North Adriatic New construction, L = 24km, D = 1100mm, DP = 100bar; Capacity 340GWh/d (32.126 mio Sm3/d) Non-FID NSP prepared nd TRA-N- 262 X C9 M3/1c Kalce − Vodice Interconnector with the Italian TSO, LNG North Adriatic New construction, L = 47km, D = 1100mm, DP = 100bar; Capacity 340GWh/d (32.126 mio Sm3/d) Non-FID NSP prepared nd TRA-N- 261 X C10 M8 Kalce − Jelšane Interconnector with the Croatian TSO, LNG North Adriatic, as well as connection of new municipalities New construction, L = 60km, D = 1200mm, DP = 100bar; MRS Postojna, MRS Pivka, MRS Ilirska Bistrica Capacity 414GWh/d (39.118 mio Sm3/d) Non-FID NSP(p) nd TRA-N- 101 X C11 R67 Dragonja − Izola Interconnector with the Croatian TSO New construction, L = 10km, D = 300mm, DP = 50bar; Capacity 5.1GWh/d (0.480 mio Sm3/d) Non-FID Conceptu al designs nd TRA-N- 114 X C12 Upgrade of interconnection Rogatec (M1A/1 Interconnection Rogatec) Interconnector with the Croatian TSO: construction of cross- border pipeline and extension of BMCS Rogatec New construction, L = 3.8km, D = 800mm, DP = 100bar Non-FID NSP(p) after 2020 TRA-N- 390 X X C13 M9a Lendava − Kidričevo and CS Kidričevo − extension stage 3 Cross-border transmission New construction, L = 73km, D = 1200mm, DP = 100bar; up to five compressor units with total power of up to 80MW, Capacity 1.030GWh/d (97.397 mio Sm3/d) Non-FID NSP(p) nd X C14 M9b Kidričevo − Vodice and CS Vodice I Cross-border transmission New construction, L = 117km, D = 1200mm, DP = 100bar; up to four compressor units with total power of up to 60MW, Capacity 1.030GWh/d (97.397 mio Sm3/d) Non-FID NSP(p) nd X C15 M10 Vodice − Rateče Cross-border transmission New construction, L = 82km, D = 1400mm, DP = 100bar; Capacity 1.003GWh/d (94.823 mio Sm3/d) Non-FID NSP(p) nd X C16 BMCS Rogatec bi-directional flow upgrade Provision of bi- directional capacities: upgrade of installations in existing BMCS Rogatec for reverse flow from Croatia to Slovenia Reconstructions and upgrades with suitable technical parameters Non-FID Conceptu al designs 2018 X

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 76 C17 M6 Interconnection Osp Interconnector with the Italian TSO New construction, L = 1.2km, D = 600mm, DP = 70bar Non-FID NSP prepared nd TRA-N- 107 X

Ten-Year Gas Transmission Network Development Plan for the 2018 − 2027 Period 77 Abbreviations CEE Central Eastern Europe CNG Compressed natural gas (CNG) D Pipeline diameter MS Member State DP Design pressure NSP National spatial plan adopted NSP(p) National spatial plan in preparation EC European Commission ENTSOG European Network of Transmission System Operators for Gas EU European Union EZ-1 Energy Act (Official Gazette of the Republic of Slovenia, Nos. 17/2014, 81/2015) FID Final Investment Decision GRIP Gas Regional Investment Plan IAP The Ionian Adriatic Pipeline project CD Conceptual designs JS Junction station L Pipeline length Lf Load factor LNG Liquefied natural gas BMCS Border metering and control station CM City municipality MS Metering station MRS Metering and regulation station NEP nd DSO National energy programme No data Distribution system operator TSO Transmission system operator PCI Project of Common Interest Cc Connection contract DMRS Distribution metering and regulation station TPP Thermal power plant Ca Connection approval TE-TOL Ljubljana Thermal Power and District Heating Plant TOŠ Šiška District Heating Plant TYNDP Ten-Year Network Development Plan

Ten-Year Gas Transmission Network Development Plan for the 2018 - 2027 Period 78 Legal notice The Ten-Year Gas Transmission Network Development Plan for the 2018 − 2027 period has been prepared pursuant to the rules of the profession and based on the data acquired by Plinovodi in good faith. The development plan contains predictions and analyses made by Plinovodi based on the data collected in this way. The data and material contained in the Development Plan are of informative nature and have been prepared for the purposes of the said document. In the event of further use of the data and information contained in the document, these must be verified with due diligence that they are up to date and relevant.

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