TALLAGHT DISTRICT HEATING - IRDEA NATIONAL CONFERENCE, DUBLIN 12TH APRIL 2019
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IrDEA National Conference, Dublin
TALLAGHT DISTRICT HEATING
12th April 2019
A Growing Integration of Technology …
AIR:
mechanical
Ventilation
WATER
HEATING:
Solar panels
HEAT:
Heat Exchange
system
Integrated with
mechanical
ventilation
POWER:
Photovoltaic
Cells
Homes will be Smart-homes with smart monitoring systems connected to broadband for
optimizing energy use & for remote control for outside the home.
SEAP Actions ‘Record’ Actions - promote an evidence based approach to energy management & focus on streamlining energy data across sectors e.g. performance indicators, heat mapping & BER data collection ‘Reduce’ Actions – showcase SDCC experience in energy efficiency projects across building stock, facilities & operations, developing citizen involvement campaigns & integrating land use & transport planning ‘Replace’ Actions – set out both a strategic & local approach to developing renewable alternatives – LARES, site specific feasibility – aim to offer encouragement to private sector…Planning?
Range of Energy Maps Energy Users Energy Demand
District Heating Potential Heat Demand Density (TJ/km2) in SDCC, anything over 250TJ/km2 considered likely to be technically & economically feasible, due to lack of experience & supports in comparison to other EU countries
1st Phase DH Network in South Dublin
Emerging Preferred Option
• Data Centre used as main energy source
• This option does not require agreement from Belgard Gardens to
cross private land & utilises existing footpath already under SDCC
control
Data
Centre
Benefits of DH to Tallaght • Low Risk - the first phase of heat network has a guaranteed customer in South Dublin County Hall Headquarters and environs. • Low maintenance – the customer heat exchanger is a simple unit with no moving parts and requires very little maintenance. • On-demand hot water – the DH system provides on demand, unlimited hot water supply, so there is no timing, waiting or running out of hot water
Benefits of DH to Tallaght • Low-cost heat - protecting against fuel poverty for residential customers and increasing competitiveness of commercial customers. • Low carbon heat – 4 phases total of 1,500 tonnes CO2 tonnes per annum – 400 cars off the road annually. • Energy Efficiency – heat pump will have high efficiency – COP above 4. • Increased use of Renewable Energy - The heat pump will support the integration of renewables on the electricity grid. • Protection from price volatility – the flexibility offered through DH heat supply means a variety of heat sources can be utilised and switched according to market prices. • Low development costs – connecting new developments to DH saves on space.
Future Expansion – Customer Map for Phase 01/ 02
Possible Future Clients – Belgard Gardens Site
Preferred Route
• Data Centre used as
main energy source
• Preferred route
through adjoining
residential lands and
into new SDCC park.Preferred Option
Permitted Layout
Planning Consent Process
• Data Centre granted Final Planning Permission in September 2018.
• Conditioned in the grant was the requirement to delivery waste heat to South Dublin
County Council
• South Dublin County Council granted Part 8 Planning for the Heat Exchange Centre
in December 2018.
• “Fast Track” Planning was submitted for 800 dwellings (Phase 01) of the residential
development proposed as customers for Phase 01 of the HeatNet projectProject Overview
Waste Heat
Supply
Data Centre
Tallaght DH System - Ph.1
Heat Supply Heat
Agreement South Supply
Contracts Belgard SDCC
Dublin Gardens Buildings
District Technical
Local Energy Initial SDCC New
Supply Heating Co. Heads of Buildings
University
Contract Terms Tallaght
ESCo.Energy Supply Contract… Further to the Tender Stage 01- Pre-Qualification submission • Four very qualified ESCos have been shortlisted for the competitive dialogue stage. • All four have submitted Outline Solution Reports and attended the first round of dialogue meetings. Each tender had taken a slightly different approach to the project. A second round of meetings in early April with a second set of proposals from the ESCos. • We hired a technical expert to assist and advise us during this process, who is sitting in on the dialogue meetings and is part of the evaluation team as well as providing general technical support. • We are now focusing on the contract development in order to have a first draft prepared for early April to send to the ESCos. We invited comment from the ESCos on the template contract as developed by SEAI which was well received. This is intended to form the basis of a national DH template contract by the end of the project. • Risk (mitigation) has been a key driver in these discussions.
Client Requirements
Overview
- Design, Build, Operate and
Maintain (7-10 year contract)
- Heat Production and Supply
- Capital Cost and Payment
MechanismApplication to Climate Action Fund 2018 • DCCAE open call for €500m funding for low carbon projects – DH as viable project • SDCC is submitting a €2.5m bid application to the new Climate Action Fund. • SDCC project could claim up to 50% of total project costs. • Application deadline October 1st - reply to proposal by early December. • Aligned to other Project Ireland 2040 funding call – Tallaght town centre bid – regeneration.
Next Steps ▪ Finalise Heads of Agreement with Data Centre ▪ Establish publicly-owned, not-for-profit District-heating company ▪ Finalise ESCo and Customer Contracts. ▪ Appoint Successful ESCo Contractor ▪ Monitor Planning Applications for Phase 01 customer residences. ▪ Prepare detailed scheme for SDCC lands adjoining site ▪ Facilitate ESCo commencement on site.
Thank you ! Eddie Conroy County Architect South Dublin County Council econroy@sdublincoco.ie
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