INNOVATIVE BUILDINGS for LOW-ENERGY cities - HIGH QUALITY CONSTRUCTION PROCESS & STAKEHOLDER APPROPRIATION : LESSONS LEARNT
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FRANCE
GRAND LYON
ITALY
LOMBARDY
SPAIN
ZARAGOZA
INNOVATIVE BUILDINGS
for LOW-ENERGY cities
THROUGH PHASES OF APPROPRIATION
HIGH QUALITY CONSTRUCTION PROCESS
& STAKEHOLDER APPROPRIATION : LESSONS LEARNT
P.01 What is CONCERTO ?
P.02-03 What is RENAISSANCE ?
P.04 GRAND LYON, France
P.05-06 RENAISSANCE project in Confluence
P.07 Local partners APPROACH
P.08 ZARAGOZA, Spain
P.09-10 RENAISSANCE project in Valdespartera & Picarral
CONTENTS
P.11 Local partners APPROACH
P.12 LOMBARDY REGION, Italy
P.13 RENAISSANCE Project PARTNERS
P.14-15 RENAISSANCE methodology
P.16 LESSONS LEARNT
5 PHASES OF APPROPRIATION
+ 19 CASE STUDIES
Urban planning and energy policies
District, site and buildings planning
Construction, equipments installation and delivery
Operation & maintenance
Building usages
X
WHAT IS C0ONCERT0O ?
What is CONCERTO ?
Presentation of the district 3D model of one CONCERTO project (Lyon)
CONCERTO is a European Commission initiative within the 6th European Research Framework Programme
which aims to demonstrate that the optimisation of the building sector of whole communities is more
efficient and cheaper than optimisation of each building individually. It started in 2005 and supports
22 projects all over Europe.
EUROPEAN FRAMEWORK
Within CONCERTO programmes, 58 communities
in 23 countries integrate innovative energy efficiency
measures with a substantial contribution from decen- In June 2010,
tralised renewable energy sources (RES), smart grids, European Union (EU) leaders adopted the
district heating/cooling systems and energy manage- “Europe 2020 strategy for smart, sustainable
ment systems in large groups of buildings. CONCERTO and inclusive growth” for the coming decade.
demonstrates good examples for sustainable district
development as well as for refurbishment of buildings. To this end, the so-called
The results so far have been very encouraging : 20 / 20 / 20 EU targets
CONCERTO cities and communities have shown that were set to be met by the year 2020, through :
through implementation of renewable energy sources, X a reduction in greenhouse gas emissions
innovative technologies and an integrated approach, exis- of at least 20 % below 1990 levels ;
ting buildings can cut their CO2 emissions by up to 50 %, X 20 % of final energy consumption to come
at acceptable costs. from renewable sources ;
X a reduction in primary energy use
The results will pave the way for future European legis- of 20 % from projected levels to be achieved
lation in the form of energy policy recommendations by improving energy efficiency.
for the 2020 energy and climate change targets and
the 2050 Energy Roadmap.
By March 2011,
Via community-based awareness raising actions and the more than 3,700 local authorities have joined
size of demonstration sites, CONCERTO is an interme- the Covenant of Mayors (www.eumayors.eu)
diate step between a building oriented approach and – committing to go beyond these targets ! Such
an approach looking at the city as a whole, the later a voluntary commitment of local decision-makers
subject being addressed in the “Smart Cities & Commu- to support a European policy is probably
nities initiative”. a first in the history of the EU.
FURTHER INFORMATION WWW.CONCERTO.EU 01
What is RENAISSANCE ?
Biomass fuel supply (Lombardia)
CUS, Valdespartera (Zaragoza) #ONmUENCE,YON
RENEWABLE ENERGY ACTING
IN SUSTAINABLE AND NOVEL COMMUNITY ENTERPRISES
RENAISSANCE project has demonstrated that ambi- They can be classified in five main categories :
tious urban regeneration programmes in two large X Innovative eco-building solutions, built on with
communities of contrasting character, Grand Lyon thermal simulations
(France) and Zaragoza (Spain), can benefit from an X Renewable energy sources (mainly wood fuel and
integrated energy approach. photovoltaics)
X Commercial and fiscal solutions such as ESCo
The Region of Lombardy (Italy) took part as an obser- X Socio-economic activities mainly focusing on inhabi-
ver partner and carried out several research activities tants behaviour
on technical, legal and social issues related to fuel Comprehensive monitoring to assess actual energy
wood supply. performance of buildings and to improve knowledge
regarding energy efficiency
The ambitious energy efficiency goals applied to
the project, coupled with a high contribution of re- In addition, several activities have been carried out
newable energy, demonstrated that drastic reductions to encourage local and national energy policies and re-
in conventional energy consumption (up to 70 %) are gulations to leap-frog in terms of energy efficiency and
achievable at reasonable costs and acceptable financial renewable energy targets, by exploiting the unique
risks on energy saving investments. opportunities for innovation offered by demonstration
projects of this size.
As showcases, RENAISSANCE included a com-
prehensive programme of Research and Tech- Last but not least, the project focused on streng-
nical Development (RTD) as well as active and thening the capacity of project stakeholders in-
widespread dissemination activities. RTD activities volved at each stage of the building process (from de-
addressed all phases of the construction process sign to commissioning), through training and expert
from planning, building design, construction, buil- technical support.
ding operation and maintenance to building usage.
WHAT IS RENAISSANCE ?
#ONmUENCE,YON Valdespartera (Zaragoza)
In both cities, strong political In total, 19 organisations parti-
commitment to sustainable deve- RENAISSANCE AT A GLANCE cipated in this project, involving
lopment, social involvement and a large range of diverse stake-
public-private partnerships have holders, from local authorities to
been the main factors of success. 7,700 m2 1,220 m2 technical and socio-economical
of refurbishment of solar thermal experts, non-profit organisations,
RENAISSANCE project produced (residential & school) panels universities, energy services com-
hard data and new knowledge panies and real-estate develo-
regarding public attitudes to new 143,300 m2 225 kW pers.
energy futures, planning policy de- of new buildings of gas and geothermal
velopment, building design, moni- (residential, offices, heat pump RENAISSANCE project demons-
toring energy systems, commercial exhibition centre) trated that practical solutions to
In total the project
energy services structures and local achieved local energy needs, applied in
fuel supply chains. Main lessons 350 kWp of highly innovative ways, have a
learnt and recommendations to photovoltaic systems a reduction large and immediate potential
policy makers and practitioners are of 67 % for replication across the rest of
consolidated in the present docu- 2,200 kW of of conventional final Europe, paving the way towards
ment in the form of case studies. biomass wood boilers energy consumption1. Post-Carbon Cities.
1
Not taking into account energy saving introduced by heat pump.
02
FURTHER INFORMATION WWW.RENAISSANCE-PROJECT.EU –
03
GRAND LYON, France Grand Lyon Community is an urban community which includes Lyon, the second largest city in France, and 57 peripheral towns. The Confluence area is a 150-hectare site located at the southern tip of Lyon’s peninsula, on land which was originally reclaimed from the surrounding waters in the late 18th century. Cut off from the rest of the city by the railway tracks and highway, the site is currently home to a lively, working- class neighbourhood, originally established in the 19th century, as well as a vast expanse of industrial wasteland (70 hectares). The Lyon Confluence project is one of the most ambitious city-centre urban regeneration projects in Europe. It will extend the centre of Lyon to the very tip of the peninsula by means of high-quality development projects that meet stringent quality criteria in terms of urban planning, architecture, environmental impact and landscaping. The aim of the project is to create a vibrant, bustling neighbourhood that is both economically and socially diverse.
GRAND LY0ON - FRANCE
RENAISSANCE project
in Confluence
West view of the blocks A, B and C
Three construction zones (named blocks A, B and C) within the Lyon Confluence urban development
project were chosen as the demonstration site for Grand Lyon’s European CONCERTO project,
RENAISSANCE. Real estate developers were selected early in 2005, a little before the CONCERTO-
RENAISSANCE programme was signed, and construction took place between 2007 and 2010.
All these construction projects had to respect the specific criteria laid down for energy efficiency
and the use of renewable energy sources, derived from CONCERTO specifications. They also had
to comply with High Environmental Quality (“HQE®”) criteria amongst which were specifications
of reinforced insulation, careful selection of materials, rainwater management and natural ventilation.
ENERGY EFFICIENCY (kWh/m2/year)
RENAISSANCE targets
Housing
< 60
Office
< 40
AND RENEWABLE ENERGY Heating
RT 2000 110 -
OBJECTIVES Domestic Hot Water
(DHW)
RENAISSANCE targets
RT 2000
< 25
40
XLuxury properties : 44 %
HOUSING XStandard and mid-price rental : 33 %
XSocial housing schemes : 23 %
A B C
SAÔNE PARK (Block A) LYON ISLANDS (Block B) MONOLITHE (Block C)
X8 buildings, X12 buildings, X1 building
X225 dwellings, X300 dwellings, X150 dwellings
X19,900 m2 of flats X27,400 m2 of flats X12,600 m2 of flats
and 15,400 m2 of offices
Expected* Expected* Expected* energy performance :
energy performance : energy performance : Offices : 21 - 37 kWh / m2 / year
26 - 42 kWh / m2 / year 35 - 68 kWh/m2/year Housing : 36 - 52 kWh / m2 / year
X 1 x 540 kW X 2 x 540 kW X 1 x 540 kW
Pellets with gas boiler Pellets with gas boiler Fuelled with wood chips,
for peak demand for peak demand with gas boiler for peak demand
X 79 kWp X 121 kWp X 65 kWp
Building integrated (BIPV)
X Heat pumps X 239 m2 of solar thermal X 250 m2 of solar thermal
on extracted air from dwellings panels and gas boiler panels and gas boiler
and on water from
cooling floor in summer
Wood fuel boiler Photovoltaics Domestic Hot Water (DHW)
(*)These energy consumption values have been obtained through dynamic thermal simulations. However, the actual performance values will be verified by the monitoring
campaign ending in summer 2012.
STRATEGIES USED TO MEET A HIGH LEVEL OF ENERGY EFFICIENCY
FOR HEATING, COOLING AND ELECTRICITY DEMAND
XPassive solar design XStrict specifications XDemand side energy efficiency
Passive gains, natural lighting on airtightness and conservation
and sun protections XInsulation of hot water Standby power interruption
XEnvelop insulation distribution networks switch, low electricity consumption
High performance windows XVentilation with heat recovery light bulbs, occupancy sensors
and several types of insulation : or with humidity sensors in commons, flow restrictor
exterior, single-wall insulating on the inlet and outlet to limit DHW demand and
brick or interior with XCross-ventilation for water consumption, etc.
thermal bridge breakers natural cooling
Flats with double orientation
GRAND LY0ON - FRANCE
LOCAL PARTNERS APPROACH
to meet project challenges
At each step of the project, different technical support and building competency to meet the
challenges of the expected final energy performance of building.
BUILDING DESIGN PHASE CONSTRUCTION PHASE BUILDING USAGE AND
XTechnical support was put XConstruction site visits OPERATION & MAINTENANCE
in place in the form of monthly by energy efficiency experts to
XResidents were involved in the
meetings to provide assistance closely follow the implementation
on the design of low energy of insulation and airtightness project once flats were put up
consumption buildings, sizing techniques and the installation for sale. RENAISSANCE experts,
and positioning of renewable of energy efficient and renewable promotors and developpers joined
energy systems and defining energy systems in order to ensure to organise information sessions
technical solutions to meet the that technical specifications agreed to promote and explain building
High Environmental Quality on during the design phase were particularities and residents
criteria. RENAISSANCE experts respected. These visits were contributions to energy savings.
provided technical support to pursued even after the delivery
XA very detailed monitoring
promoters and their energy- of dwellings to verify that detected
engineering consultants. defects had been corrected. campaign on energy demand
and wood fuel delivery and
XDynamic thermal simulations XTraining for craftsmen consumption was planned
were made to estimate energy of different professions with the installation of hundreds
consumption of one dwelling per were provided on the subject of sensors. After one full
building in order to evaluate the of airtightness. This educational year of measurements, it will
technical design choices made program was later extended be possible to draw some
by architects and engineers, to training of trainers. conclusions on the actual
and adapt the design if necessary. energy performance of buildings
XAnalysis of the impact of and on building operation.
XA study on short rotation improved energy performance
XA study of operation and
coppice was realized to assess of buildings on the level of rents
the feasibility of an energy crop and charges in social housing. maintenance (O&M) contracts
supply chain from short rotation has initiated a reflection on
coppice in the surroundings of main elements and special
Lyon that would serve to fuel clauses to integrate in O&M
the whole Confluence district. contracts to guarantee targeted
energy performance.
XA study tour was organised
XWith the same objective,
in the Netherlands in order
to show building designers training on the operation
and promoters large-scale and maintenance of energy
innovative photovoltaic building efficient buildings, ventilation and
integration techniques. renewable energy systems were
organised for O&M companies.
06
–
07
ZARAGOZA, Spain Zaragoza is the fifth largest city of Spain, situated in the northern part of the country. The RENAISSANCE project has been carried out in two districts with two different but complementary approaches. “Valdespartera” district is an ancient military precinct in the Zaragoza outskirts that has been transformed into a bioclimatic neighbourhood with 9,650 social housings. The RENAISSANCE project is involved with the construction of social housing and an interpretation centre. The “Picarral” neighbourhood was planned in the 1940’s during the rural-urban migration with very poor quality construction. The neighbourhood, ageing and occupied by the working class, has been the second area of intervention of the project, involving refurbishment works for residential buildings and a public school. In addition, considerable work on energy performance monitoring, socio-economical studies and software design has been carried out in parallel, making RENAISSANCE not only a building construction project but also providing a holistic approach to integrate rational use of energy at a neighbourhood scale.
ZARAG0OZA - SPAIN
RENAISSANCE project
in Valdespartera & Picarral
Valdespartera new buildings
VALDESPARTERA PICARRAL
The RENAISSANCE project includes paign and developed the social work Picarral was involved in the project
specific actions on 616 apartments, with the neighbourhood residents. through the refurbishment of 196
with 64 027 built square meters. An New technologies have been inte- apartments (14,422 m2). Being a pilot
interpretation centre on urban sus- grated in the neighbourhood. In the experience not only for Zaragoza
tainability (CUS) has been designed, interpretation centre a tele-control- but for Spain, the project attracted
constructed and set up. led net is monitoring water supply, the interest of many municipalities.
irrigation, sewage, lighting... allowing A public school (Cándido Domingo),
The neighbourhood was designed control and measurement. built in 1971, has been refurbished,
from the beginning with a sustai- with a total area of 1,914 m2, work led
nable urban design plan, which Renewable energies have been inte- by Ayuntamiento de Zaragoza. All the
improves the efficiency of the bio- grated in the project, with a selec- refurbishment plans have been evalua-
climatic buildings. The participation tion of the most appropriate for each ted by CENER, a national public insti-
of public institutions has been very building. In Valdespartera 654m2 tution specialized in renewable energy.
important. Ayuntamiento de Zarago- of solar thermal panels for DHW
za (Municipality), which has a strong have been integrated on the project In Picarral, renewable energies also
commitment to sustainable deve- buildings (reaching a total amount of play an important role. In the public
lopment, promoted the idea of the 9,000 m2 in the neighbourhood). In school Cándido Domingo an 18 kWp
eco-neighbourhood, creating Eco- the interpretation centre, a 45kW photovoltaic system has been instal-
ciudad Valdespartera Zaragoza. This geothermal and reversible water- led on the roof of the building. Also,
institute managed the design and water heat pump has been installed photovoltaic panels have been inte-
construction of the neighbourhood and integrated with a biomass boiler grated in refurbished buildings with an
and the interpretation centre. The of 37kW. One of the most innova- innovative economical solution desig-
initial bioclimatic buildings (4 blocks) tive solutions is the one designed by ned by Sociedad Municipal Zaragoza
were developed by Sociedad Munici- URBIC, which consists of a collective Vivienda : the economical benefits of
pal Zaragoza Vivienda. The Universi- energy efficient gas heat pump for the energy sale will be invested in the
dad de Zaragoza assisted their design cooling and heating integrated in an building refurbishment. Also 240 m2
phase, set up the monitoring cam- ESCo model. solar thermal panels have been inte-
grated in the Picarral buildings.
08
–
09Cándido Domingo School after refurbishment works (Picarral)
PUBLIC PRIVATE PARTNERSHIP
The participation of private com- (kWh/m2/year) New buildings
Refurbished Refurbished Interpretation
panies in the project enables the buildings school centre
development of commercially in- Heating 25 52 51.5 79
novative solutions. The enginee- Domestic Hot Water
9.5 14 - -
ring company URBIC has set-up (DHW)
the previously-mentioned ESCo Cooling 11 1.4 13.9 61
and has played an important 70 % 40 %
Share of
role in the design phase of the renewable energy
64% (*) of solar thermal of electricity 90%(**)
for DHW consumption
building’s systems. ENDESA, an
international company, has contri- * It combines the passive solar gain (average 50% of heating demand) plus thermal solar for DHW (70%)
buted with its experience on gas ** Heating and cooling energy is renewable except heat pump with geothermal energy
and electricity consumption and
management at the district scale. The monitoring campaign, with of construction problems with
more than 750 probes installed improper user behaviour resulting
and 220 apartments monitored, in extra consumption of energy.
when combined with the feed- Thus, a characterization of user
back of the social work with types and events which result in
the neighbours, has proved to extra consumption has led to the
be very important in improving creation of a web based system to
building efficiency. The project provide users with specific recom-
enabled a combined study of the mendations in order to avoid these
analysis of energy system per- energy consuming behaviours.
formance plus the identification
STRATEGIES USED TO MEET A HIGH LEVEL OF ENERGY EFFICIENCY
FOR HEATING, COOLING AND ELECTRICITY DEMAND
XUrban planning to ensure solar XHigh insulation of the buildings XNight cross-ventilation
gains and cross ventilation, and to coupled with massive walls to coupled with thermal inertia to get
create a temperate microclimate ensure inertia a reduction in diurnal temperature
XHigh performance windows : XInsulation of thermal
double-glazing and frames without distribution networks
thermal bridge and double windows XStrict specifications on air
on North and West sides façades tightnessZARAG0OZA - SPAIN
LOCAL PARTNERS APPROACH
to meet project challenges
URBAN DESIGN PHASE PICARRAL REFURBISHED BUILDINGS
XIt was necessary to convince
BUILDING USAGE,
XThe urban plan was designed inhabitants to engage OPERATION & MAINTENANCE
according to the Zaragoza refurbishments as they are often
XA widespread monitoring campaign
climate. A “right to the sun” has reluctant. Improvements in energy
been granted through fixing a consumption and economical coordinated with public awareness
maximum height to buildings and savings have to be explained, bank and training activities has been
optimizing distances between loans must be managed and all of one of the most important tasks:
buildings. All the buildings are this requires significant fieldwork. without adequate information
rectangular and face south for and training of inhabitants, energy
consumption of bioclimatic
more efficiency and to optimize
solar gains and cross ventilation.
CONSTRUCTION PHASE buildings can be higher than
XConstruction site visits were consumption in standard buildings.
XStreetsare designed to allow carried out by RENAISSANCE XUsers heating demand is in
inner cross ventilation in buildings experts to check for potential air leaks
and to stop the cold and dry general lower or equal to simulated
or poor insulation. Infrared images value (53 % of the 1,600 houses
wind called “cierzo”. Gardens and blower door tests revealed
and roads have been designed analyzed), this is positive. However,
some defects that were corrected.
to promote quiet streets. despite the intense campaign
XA control of renewable energy developed with monthly articles,
XVegetation regulates the local systems to identify defaults in meetings, posters, etc., there are still
microclimate. Deciduous trees allow installation and maintenance was 31.5 % of dwellings that consume
the sun to heat streets and façades carried out. training technicians and up to three times the targeted
in winter, while in summer they stop monitoring facilities is necessary performance (cf. Figure below)
solar radiation. Vegetation has been to ensure optimal efficiency.
XFirst
data shows that for most
selected according to the climate
and to minimise irrigation needs. XInefficientdesign and improper of dwellings the summer air
maintenance combined with excessive conditioning is not required with
use of heating leads to excessive losses proper use of bioclimatic design
BUILDING/REFURBISHMENT (46,3 %). The analysis carried out (heat island effect mitigation, night
DESIGN PHASE shows that heating needs correspond cross ventilation and thermal mass
reducing temperature peaks). More
to 42.6 % and DHW to 11.1 %
VALDESPARTERA NEW BUILDINGS precise data will be available after
XBetter control during the the summer 2012 and compared
XMunicipal regulations specifically
construction process and after to the low cooling loads obtain
defined for Valdespartera establish
occupation is required. New laws from simulation (11 kWh/m2/yr).
specific envelope parameters
could make this possible and
(U values, % of glazing, dimension
inexpensive in the overall process.
of the overhangs, etc.).
XPrior to the construction phase, HEATING ENERGY
KWH/M2 /
59
60
the Universidad de Zaragoza YEAR
CONSUMPTION
50
conducted a thorough review of the 39
40
project to verify compliance with 27
Number of dwellings
the defined bioclimatic rules. as a function of energy
30
13
consumption in heating 20 5
22 % 25 %
(15 % of vacant homes 10
not included) 6% 19 %
0
12,5 %
Very
efficient Efficient
As % DWELLINGS
estimated High
Very high
10
–
11LOMBARDY REGION, Italy The Region of Lombardy, whose capital is Milan, is situated in the northern part of Italy. The Region expressed its strong interest in participating in the RENAISSANCE project as observer Community at the beginning of 2006. No urban demonstration project was financed in Lombardy. Rather, the Region of Lombardy actively took part to the research and development activities of the project. With the support of the Regional Agency for Development of Agriculture and Forestry (ERSAF), they were responsible for the research activities related to the wood fuel supply chains in urban district. The Region of Lombardy carried out several studies on valorising zones on the periphery of big infrastructures in order to produce wood fuel using short and medium rotation forestry techniques. The feasibility of ambitious projects has been assessed, namely the creation of green belts along BREBEMI highway and Malpensa airport. In addition, Lombardy carried out studies regarding the socio-economic impacts of such projects and on the feasibility of a rural-urban ESCo to promote agro- forestry solid biomass through combined heat and power installations (CHP).
RENAISSANCE project partners
PR0OJECT PARTNERS / L0OMBARDY REGI0ON - ITALY
PROJECT COORDINATION
Grand Lyon (FR) : Béatrice COUTURIER HESPUL (FR) : Sylvain KOCH-MATHIAN
becouturier@grandlyon.org sylvain.koch-mathian@hespul.org
GRAND LYON COMMUNITY’S PARTNERS ZARAGOZA COMMUNITY’S PARTNERS
POLITICAL LEADERSHIP POLITICAL LEADERSHIP
Béatrice COUTURIER becouturier@grandlyon.org Javier CELMA unidadambiente@zaragoza.es
URBAN PLANNERS URBAN PLANNERS AND DEVELOPERS
Maxime VALENTIN mvalentin@lyon-confluence.fr
Luis VELA lvela@valdespartera.es
TECHNICAL EXPERTS
Juan RUBIO jrubio@zaragozavivienda.es
Olivier SIDLER sidler@enertech.fr
TECHNICAL EXPERTS & ENERGY PROVIDERS
Muriel FUSY muriel.fusy@ale-lyon.org José Antonio TURÉGANO jat@unizar.es
Juan Carlos PERICÁS jcpericas@urbic.es
Malorie CLERMONT malorie.clermont@hespul.org
Francisco SERNA fserna@cener.com
Hervé PABIOU herve.pabiou@insa-lyon.fr
REAL ESTATE DEVELOPERS Juan GRACIA juan.gracia@endesa.es
Serge EPINAT sepinat@nexity.fr
LOMBARDY COMMUNITY’S PARTNERS
Pierre-Marie LE GLOANEC Gabriele BOCCASILE
p.legloanec@bouwfonds-marignan.com
gabriele_boccasile@regione.lombardia.it
Mathieu MOLINA mathieu.molina@ingrealestate.com Virgilio GARAVAGLIA
virgilio.garavaglia@ersaf.lombardia.it
12
–
13RENAISSANCE methodology
Avoiding disappropriation
The main objective of RENAISSANCE was to demonstrate that high levels of energy performance in new and refurbished
buildings can be achieved at a significant scale and at reasonable costs, with existing technological solutions,
if appropriately planned. RENAISSANCE project has been designed to address each step of the building process.
For any project aiming at constructing highly energy efficient buildings, the main challenge lies in overcoming the risk of
disappropriation in the construction process. In other words, it is essential to focus on the appropriation of energy issues
by all the stakeholders involved in the design and construction of a building as well as throughout its lifetime in order to
guarantee that targeted energy performances will not progressively deteriorate along the process and building lifetime.
URBAN PLANNING
AND POLICIES :
DISTRICT, SITE
Town planning, energy AND BUILDING PLANNING : CONSTRUCTION, EQUIPMENT
policies and regulation INSTALLATION, AND DELIVERY : CONSTRUCTION, EQUIPMENT
Ground plans, INSTALLATION, AND DELIVERY :
preliminary studies, Land commercialisation,
networks and equipment construction works Commissioning,
design, buildings design occupancy, O&M
and users’ behaviour.
The graph below shows possible evolutions of energy performance over the building process. Exclamation points highlight common
elements that impact the final energy consumption: bioclimatic techniques including building orientation and volume definition to
optimise passive solar gains, quality of construction techniques, users’ energy saving habits, operation and maintenance aiming at
satisfying users’ comfort with the most efficient energy conversion from final demand to useful consumption. Three contrasted
situations are considered, each one depicted with a different colour.
3 EXAMPLES CHRONOLOGY OF EACH STAGE OF THE URBAN PROCESS
URBAN PLANNING DISTRICT, SITE CONSTRUCTION, EQUIPMENT INSTALLATION, BUILDING USAGES,
A building that is properly AND ENERGY POLICIES AND BUILDING PLANNING AND DELIVERY OPERATION & MAINTENANCE
designed with ambitious low-
energy objectives (i.e. through
dynamic thermal simulation
software) can perform poorly if
successive stakeholders do not
take into sufficient consideration 3 EXAMPLES OF FREQUENT CRITICAL POINTS1
TARGETED ENERGY ACHIEVED ENERGY
the risk of critical points. PERFORMANCE PERFORMANCES
(kWh/m2 /year) (kWh/m2 /year)
Even if a project anticipates
all disappropriation risks Bioclimatic approach Quality of the Inhabitants’ behaviours
(e.g. passive construction (e.g. thermostat at 19°C)
during design and construction
solar gains) (e.g. airtightness)
phases, problems may
appear during operation and
maintenance and jeopardise
targeted energy performances. Operation
and maintenance
Good energy
(e.g. system
performances are achievable
regulation, etc.)
by paying special attention
to energy issues all along
the design, construction and
operation processes.
1
Please note that the actual impacts of breaking points on the overall energy performance are not necessarily proportional to the one represented on the graph .RENAISSANCE METH0OD0OL0OGY
by building process stakeholders
RENAISSANCE project was clearly designed with the aim of tracking disappropriation risks all along
the building process through 3 leverages tools :
I / Contractual objectives
II / Expert support to project stakeholders
III / Awareness raising and training of enterprises and users
The graphic below shows the actions which have a positive impact on the final energy performances of
the buildings. Some of them have been well anticipated and realized under the RENAISSANCE project.
Some of the RENAISSANCE activities undertaken Some of important points that had not been
to avoid breaking points in the appropriation process sufficiently anticipated by the project partners, affecting
are listed in the following scheme. the overall energy performance of the building.
CHRONOLOGY OF EACH STAGE OF THE URBAN PROCESS
URBAN PLANNING DISTRICT, SITE CONSTRUCTION, EQUIPMENT INSTALLATION, BUILDING USAGES,
AND ENERGY POLICIES AND BUILDING PLANNING AND DELIVERY OPERATION & MAINTENANCE
Influence On site trainings on airtightness Training Energy
on national of O&M performance
thermal regulation Selection and contractualization companies monitoring
of energy performance objectives
Define energy Training Inhabitants
performance set on uses awareness raising
of criteria for a
given area Utilisation Construction
of a software follow up Contractualization of energy
for sustainable performances with building
site planning Guidelines on O&M managers
issues developped
Buildings orientations by engineering
and shapes for solar and construction
inputs companies
Municipality
IMPLICATION Planner / Developer contractor
OF KEY
STAKEHOLDERS Property Developers
Buildings managers, O&M contractors, Users
14
–
1519 CASE STUDIES TO DEMONSTRATE THE LESSONS LEARNT
IN THE RENAISSANCE PROJECT ALL ALONG THE CONSTRUCTION PROCESS
Case studies described in the annex These case studies provide useful guidance for munici-
of the present document detail the palities, urban planners, property developers and ener-
OPERATION and MAINTENANCE
Local ENERGY POLICIES in Grand Lyon
main lessons learnt during RENAIS- gy agencies on how to set up a favourable environment
LOCAL POLICY AS REGULATION PROGRESS ENABLER
The case study of the CONCERTO-RENAISSANCE project in Lyon clearly shows how a combination
of political commitment at local level in energy sustainability with financial and methodological
Comparison of MONITORING STRATEGIES
support from European Commission can strongly and positively influence policies at national
HIGH ENERGY EFFICIENCY & RENEWABLE ENERGY SYSTEMS
and regional levels.
Operation and maintenance (O&M) of equipment is crucial to a building’s final energy consumption.
SANCE project and attempt to pro- for constructing sustainable buildings.
for buildings energy efficiency
The case study lists recommendations to improve management of installations. Particular attention
ZARAG0OZA SPAIN
BACKGROUND must be paid to maintenance
DESCRIPTIONcontracts,
OF THEasACTIVITIES
well as the training of O&M companies and energy
engineers’ support.
The French energy policy framework Given local and national context, making the lessons learnt avai-
was set up just after World War II RENAISSANCE partners took lable to others via development
and suffered very few modifications the unique opportunity of the of policy guidance notes thus faci-
until 2000. The first thermal regu- demonstration project (scale litating mainstream adoption and
lation in buildings was introduced in of the project, strong political use of this innovation by other
1974 and was reinforced by inclu- commitment) to innovate and municipalities and urban planners.
ding insulation performance. Yet in enhance existing energy policies
2003, the ongoing thermal regula- BACKGROUND DESCRIPTION OF THE ACTIVITIES
and practices at local, regional
Grand Lyon implication in the
GRAND LY0ON FRANCE
vide consistent recommendations,
project as official coordinator
tion “RT 2000” didBlock B and Cand
not A,include nationalinlevel by :
buildings proved to be rantee
highly benefi-
transforming Prior to the start-up of equip- energy efficiency objec-
any energy performance objectives are equipped
RENAISSANCE withproject experience cial. It provides credibility
except for insulation. intoinstallations
municipal policy, ments, the energy
regulation expert tives. Facedandwith building mana-
highThe national
plan for greenhouse such
energy efficiency
heat pumpsand
gasasemissions OBJECTIVES, STAKEHOLDERS AND TECHNIQUES
on practices,
Enertech conducted
extractedthus ensuring imme-
legitimacy
whilethe
a number
taking
to the project actions,
gers’ lack of interest and time to
one step forward the
Thus, hot diate of visits to evaluate quality
was approved onlyairin for 2004.
domestic waterreplication
(DHW) of the results, collaborate,the ALE compiled a list
Monitoring techniques when serve to assess the actual works internalcasereflection
study ofregarding
in performance ofevolution
the buildings. Monitoring
RENAISSANCE project was proposing of finished
for regional (cf. activities legal recommendations on
production summer, heating leading role of municipalities for
N°10 “Construction follow-up”).
being designed
are classified in terms infloors
of stakeholders 2003,involved,
serving alsoandto
binding technologies national policies
and
slightly and
feedbacksregulations,
to actors,thebased on O&M
development contracts and a guide with
of sustainable
Some of the defects observed technical advice specific to wood
GRAND LY0ON FRANCE
energy objectivescoolintoorder
developers
However they also demonstrate that work remains to
experiences in Lyon and Zaragoza, to provide
inside guidanceusing
air in summer on the choice of a particular
urbanismsolution.
were corrected only after dwel-
and energy efficiency.
were seen as a realrecoveredbreakthrough energy for preheating fuel boilers (refer to the “Wood
regarding existingDHW, practices. ling delivery thereby affecting
and heat recovery ventila- fuel boiler guide” case study,
building energy performance in
tion, as well as installations using N°XX).
based on activities carried out by
renewable energy such as wood the initial year of O&M.
fuel boiler and solar thermal and Prior to dwelling delivery, ALE, In addition, Hespul, photovoltaic
RESULTS AND LESSONS LEARNT
photovoltaic. On average, each Grand Lyon’s local energy expert, installed and operated a
BACKGROUND DESCRIPTION OF THE ACTIVITIES
block had to cover 80 percent of agency, muchhad attempted to ac- tool for monitoring production
LOCAL DEMONSTRATIVE EFFECT or a public funding envelope MUNICIPAL ENERGYand detecting defects for pho-
The RENAISSANCE project included final Theenergy
main work demand
was for
smaller
heatinga First,
to define
than what company
real building
the deve-
estate global managers
objectives of a in
The and DHW with
way renewable energy. monitoring PERFORMANCE CRITERIA
an important task on theproject demonstrates
monitoring that high-
standard to lopers
carry inthrough
RENAISSANCE the write-up of O&M
activity
obtained, werecontracts
iden- tovoltaic systems, on the three
of the global performances of the O&M
energy performance is a key
abuildings
monitoring arestep to ensure
activity.
and someIn RENAIS-high tified
Energy Plus to buildings
include
as wellspecific FOR NEW
clauses
are as the toHOUSING
involvedgua- blocks.
achievable even forperformance
big ope-ratios.currently
scale different Then AND
eachOFFICES
stage ofBUILDINGS
be done before energy issues are fully integrated at the
buildings such as energy consump- SANCE, kinds of undermoni-construction
stakeholders. in the
tion, comfort criteriarations, implyingof a strong
and quality toring demons-
activities were conducted. oftheCONCERTOmonitoring process wasLyon des-has developed in 2003
CASE systems.
renewable energy trative effect
Asatnolocal level.
During Thethereal
neighbourhood
construction,
Grand
STUDY buildings.a certain cribed, leading to a standard a set offrame reference criteria for the
standard exists for estate developers
such large scale that number
were involved of visits, airtightness for monitoring activities. Becauseof sustainable housing
RENAISSANCE partners in France,
The momentum generated by usedconstruction
monitoring activity,inathe project became
reflection on convinced
tests of
and thermographies were the technologies the two
buildings (“Référentiel habitat du-
the methodologiesthe wasfeasibility
neededand to relevance
conducted in LyontheandRENAISSANCE
of set- project deeply
Zaragoza communities were different
rable”). (auto-
The “ Housing sustainable
ting ambitious
highlight the strong/weak points energy
of performance.
for a direct feedback contributed
to the buil-to thenomous
developmentsensorsof Lyon and wired/
each of them dependingRENAISSANCE
on the ini- energy occupiedsustainable
ders. Inspecifi- dwellings, neighbourhoods within inenergy
the wireless network Zaragoza),
reference framework ” is
La Confluence areacomparison
and thereforebetween
to applicable to all urban planning
tial objectives of thecations have been monitoring
monitoring. subsequently was based on autono- orthem were development led
construction
applied to other developments
mous sensors WWF’s choice
in (dataloggers) withto select this district
possible.
With different monitoring
La Confluence acti-area. Several low as atopilot site for testing their sus- by the Municipality, or located on
internal memory able store data
CASEvities in Lyon andenergy Zaragoza com-
consumptions buildings
during months.tainable
18have districtalabel.
In Zaragoza,
Municipality owned land, or sub-
Moreover, because eco-buildings
sidised bylike the Municipality (social
earliest stage of the planning process (e.g. urban compo-
STUDYmunity, the RENAISSANCE
been builtproject
with no public address some new problems
wired funding
network of temperature
was a good frame to lead such an summer comfort : an housing operations). The second
innovative
and humidity sensors connected
analysis. technique was developed in Lyon
to a host computer was imple-
to measure night cross-ventilation
Spain and Italy, and aiming at addres-
mented in new and refurbished
in an empty dwelling and Zaragoza
buildings. This network was later
used statistical analysis of tempera-
completed with a wireless sub-
ture measurements to determine
network of autonomous sensors,
the effectiveness of night cross-
which allowed for the possibility to
CASE compare these two techniques.
ventilation in occupied dwellings.
STUDY
sing the whole appropriation process sition and building shape, criteria for selecting architects
as presented here. At the end of each case study, links to and developers, etc.) and before all stakeholders in the
further information on the subjects are provided as well construction process are aware of what low-energy per-
as contact details. formance actually means for them in their professional or
personal practices.
CHRONOLOGY OF EACH STAGE OF THE URBAN PROCESS
URBAN PLANNING DISTRICT, SITE CONSTRUCTION, EQUIPMENT INSTALLATION, BUILDING USAGES,
AND ENERGY POLICIES AND BUILDING PLANNING AND DELIVERY OPERATION & MAINTENANCE
LOCAL ENERGY POLICIES MEDIUM ROTATION FORESTRY
01 IN GRAND LYON 03 PLANTATION ALONG BREBEMI HIGHWAY
LOCAL ENERGY POLICIES
02 IN ZARAGOZA
VALDESPARTERA, A
CITY SCALE 04 SUSTAINABLE NEIGHBORHOOD
RESIDENTIAL BUILDINGS
05 REFURBISHMENT IN PICARRAL
BUSINESS PLAN FOR A
06 BIOMASS BASED ESCo
INSTALLATION OF WOOD FUEL BOILERS IN
07 VERY DENSE URBAN DISTRICTS
CROSS VENTILATION : A PASSIVE
08 TECHNIQUE FOR SUMMER COMFORT
DISTRICT SCALE
INTERPRETATION CENTRE OF SUSTAINABLE URBANISM,
12 MONITORING AND TELECONTROL
DISTRICT SCALE MONITORING
13 TOOL FOR P.V. SYSTEMS
TRAINING OF TRAINERS
09 ON AIRTIGHTNESS
FOLLOW-UP OF THE CONSTRUCTION
10 PROCESS AND EQUIPMENT INSTALLATION
HIGH EFFICIENCY COOLING &
11 HEATING BY ESCo
RESEARCH & DEVELOPMENT ACTIVITIES
14 IN ZARAGOZA COMMUNITY
BUILDING SCALE
MONITORING AS SUPPORT OF ENERGY
15 EFFICIENT BEHAVIOURS
COMPARISON OF MONITORING STRATEGIES FOR
16 BUILDINGS ENERGY EFFICIENCY
PARTICIPATION PROCESS INHABITANTS TRAINING
17 FOR INHABITANTS AWARENESS RAISING 18 AND AWARENESS RAISING
OPERATION &
19 MAINTENANCETHE RENAISSANCE CONSORTIUM
19 PARTNERS IN 3 EUROPEAN COUNTRIES
FURTHER INFORMATION WWW.RENAISSANCE-PROJECT.EU
;OPZKVJ\TLU[OHZILLUWYVK\JLK^P[O[OLÄUHUJPHSHZZPZ[HUJLVM[OL,\YVWLHU*VTTPZZPVU+PYLJ[VYH[L.LULYHSMVY,ULYN`+.,5,9\UKLY[OL¸*65*,9;6¹7YVNYHTTL;OL]PL^Z
L_WYLZZLKOLYLPUHYL[OVZLVM[OL9,5(0::(5*,JVUZVY[P\THUKJHU[OLYLMVYLPUUV^H`IL[HRLU[VYLÅLJ[[OLVMÄJPHSVWPUPVUVM[OL,\YVWLHU*VTTPZZPVU
*VVYKPUH[PVUVM[OLW\ISPJH[PVU!/,:7Local ENERGY POLICIES in Grand Lyon
LOCAL POLICY AS REGULATION PROGRESS ENABLER
The case study of the CONCERTO-RENAISSANCE project in Grand Lyon clearly shows how
a combination of political commitment at local level in energy sustainability with financial and
methodological support from European Commission can strongly and positively influence policies
at national and regional levels.
BACKGROUND DESCRIPTION OF THE ACTIVITIES
The French energy policy framework Given local and national context, making the lessons learnt avai-
was set up just after World War II RENAISSANCE partners took lable to others via development
and suffered very few modifications the unique opportunity of the of policy guidance notes thus faci-
until 2000. The first thermal regu- demonstration project (scale litating mainstream adoption and
lation in buildings was introduced in of the project, strong political use of this innovation by other
1974 and was reinforced by inclu- commitment) to innovate and municipalities and urban planners.
ding insulation performance. Yet in enhance existing energy policies
Grand Lyon implication in the
2003, the ongoing thermal regula- and practices at local, regional
GRAND LY0ON FRANCE
project as official coordinator
tion “RT 2000” did not include and national level by :
proved to be highly benefi-
any energy performance objectives transforming project experience
cial. It provides credibility and
except for insulation. The national into municipal policy, regulation
legitimacy to the project actions,
plan for greenhouse gas emissions and practices, thus ensuring imme-
while taking one step forward the
was approved only in 2004. Thus, diate replication of the results,
internal reflection regarding the
when RENAISSANCE project was proposing evolution for regional
leading role of municipalities for
being designed in 2003, binding and national policies and regulations,
the development of sustainable
energy objectives to developers urbanism and energy efficiency.
were seen as a real breakthrough
regarding existing practices.
RESULTS AND LESSONS LEARNT
LOCAL DEMONSTRATIVE EFFECT or a public funding envelope much MUNICIPAL ENERGY
smaller than what real estate deve- PERFORMANCE CRITERIA
The project demonstrates that high- lopers in RENAISSANCE obtained,
energy performance buildings are and some Energy Plus buildings are
FOR NEW HOUSING
achievable even for big scale ope- currently under construction in the AND OFFICES BUILDINGS
rations, implying a strong demons- neighbourhood of CONCERTO
trative effect at local level. The real Grand Lyon has developed in 2003
buildings. a set of reference criteria for the
estate developers that were involved
in the project became convinced of The momentum generated by construction of sustainable housing
the feasibility and relevance of set- the RENAISSANCE project deeply buildings (“Référentiel habitat du-
ting ambitious energy performance. contributed to the development of rable”). The “ Housing sustainable
RENAISSANCE energy specifi- sustainable neighbourhoods within energy reference framework ” is
cations have been subsequently La Confluence area and therefore to applicable to all urban planning
applied to other developments in WWF’s choice to select this district or construction development led
La Confluence area. Several low as a pilot site for testing their sus- by the Municipality, or located on
CASE energy consumptions buildings have tainable district label. Municipality owned land, or sub-
STUDY been built with no public funding sidised by the Municipality (social
housing operations). The secondversion (2006) benefited from the RENAISSANCE expe- HEATING AND COOLING NETWORKS
rience in terms of energy performance requirements.
The third version published in 2009 had the objective to The pre-study carried out during the first steps of
mainstream low energy consumption buildings by anti- RENAISSANCE project about the construction of a hea-
cipation of the future new French thermal regulation ting network supplied by wood-fuel boilers at the district
(RT 2012). scale led the Grand Lyon to revisit Heating and Cooling
(H&C) networks as a whole. Even if the solution chosen
Following positive feedbacks from the introduction of for RENAISSANCE building was individual wood-fuelled
energy performance criteria in housing, Grand Lyon boilers at block scale, numerous studies in other districts
decided to expend it to the office and services sector with followed. The project contributed to impulse a strategic
the creation of a new set of criteria for sustainable offices vision inside Grand Lyon’s departments concerned by the
(“Référentiel bureaux durable”), setting energy perfor- subject, leading to a political decision to include H&C
mance objectives based on those applying to offices networks within its jurisdiction and to design an H&C
built under the CONCERTO-RENAISSANCE project. master plan.
PILOT OPERATION FOR THE MAINSTREAMING PROJECT IMPACT REGARDING REGIONAL AND NATIONAL POLICIES
OF ENERGY EFFICIENT REFURBISHMENT OPERATIONS ,QWKH5K{QH$OSHV5HJLRQDO&RXQFLOGHFLGHGWR
Taking opportunity of the momentum accelerated by the develop a “sustainable housing reference framework” si-
RENAISSANCE project, Grand Lyon partners extended milar to the one developed by Grand Lyon. RENAISSANCE
their cooperation for defining a refurbishment strategy on project provided technical inputs to the regional
a pilot residential district, the district of Saint Blandine. approach regarding energy systems and construction
The objective of the study was to define an operational specifications.
strategy replicable to the whole conurbation in order 7ZR 5(1$,66$1&( SDUWQHUV SDUWLFLSDWHG WR D ZRU-
to mainstream thermal refurbishment of existing buil- king group in the so-called “Grenelle de l’Environne-
ding stock while maintaining the social purpose of the ment” at national level. RENAISSANCE’s first results and
district and designing innovative financial mechanisms. lessons learnt strongly contributed to the definition of
The study concluded that the most interesting financial the energy performance objective of the new thermal
model would be to combine zero interest loans for the regulation (RT 2012).
property manager with local incentives. However, the
juridical framework for applying for zero interest loans
to co-owned building does not exist. The results of the
study has enabled Grand Lyon, associated with other
French cities, to pressure the government for introdu-
cing needed regulation adjustments.
RECOMMENDATIONS
. For such large scale and carried out for strengthening French tance for municipalities to take up
ambitious project, it is essential energy issues and include them in
municipalities capability in this topic.
to focus on the appropriation of town planning activities to have a
energy objectives by all stakeholders 2. At national level, RENAISSANCE comprehensive energy strategy at the
involved along the whole process partners are promoting an evolution conurbation level. Municipalities also
from the design to the occupation of the regulation so as to enable need to consider energy networks
and maintenance phases. To do so, zero interest loans for thermal (electricity, gas and H&C) as any
municipalities need to identify the refurbishment of co-owned residen- other network (e.g. water distribu-
leverages they have at disposal for tial buildings, as a main leverage to tion) and therefore take back the lead
ensuring targeted energy perfor- mainstream the refurbishment of and management of these network
mance objectives will be actually the existing building stock. infrastructures. To enable munici-
achieved once the buildings will palities and other local Authorities
be occupied. RENAISSANCE project
worked on some of the leverages
3. From a more general point of to carry out ambitious and effective
energy policies, a law on energy
view, RENAISSANCE partners are
but significant work remains to be strongly convinced of the impor- decentralisation is required.
FURTHER INFORMATION RENAISSANCE KEY DOCUMENTS :
www.renaissance-project.eu
GRAND LYON : Béatrice COUTURIER HESPUL : Sylvain KOCH-MATHIAN
becouturier@grandlyon.org sylvain.koch-mathian@hespul.orgLocal ENERGY POLICIES in Zaragoza
Juan Alberto Belloch, Cándido Domingo School after refurbishment works
Major of Zaragoza
POLITICAL CONSENSUS AND INSTITUTIONAL SUPPORT
The RENAISSANCE project has been an important contributor to the change of direction in the
energy administration policies of Zaragoza. The success of this project made us adopt a new kind
ZARAG0OZA SPAIN
of bioclimatic construction and experiments for rehabilitations with ambitious energy saving and
energy efficiency criteria.
BACKGROUND DESCRIPTION OF THE ACTIVITIES
Zaragoza was already recognised
On 17th of April 2009 the City of RENAISSANCE project in Zaragoza
before this project as source of
Zaragoza endorsed the Strategy has proved that significant savings
exemplary energy saving and effi-
Against Climate Change and for in this sector are achievable.
ciency experiments, and the project
Air Quality of Zaragoza, a strategy
success is related to this. Parque The RENAISSANCE project in
that has established two great goals
Goya neighbourhood is a previous Zaragoza have demonstrated that
for the year 2015 : improvement
experience with social housing using housing planned with bioclimatic
of air quality and reduction of
bioclimatic criteria that provided the characteristics can obtain spectacu-
dependence on fossil fuels. The
municipality with a first set of signifi- lar results. In the dwellings construc-
objective is to obtain a 30% reduc-
cant results. ted and monitored by Eco-ciudad
tion in CO2/person by the end of
Valdespartera, a consumption rate
RENAISSANCE offered a new 2015 as well as acting on polluting
per dwelling between 20-25 kWh/
opportunity to boost and improve gases (CO, SO2, NOx, COV,
m2/year has been obtained, whe-
other aspects not yet studied. COVNM, NO2) and suspended
reas in conventional dwellings the
particles for improving air quality by
rate is between 80-110 kWh/m2/
EC directives.
year. In other words, a reduction of
The actions have been grouped 75% has been achieved. As far as
in five priority fields. The actions rehabilitated dwellings are concer-
addressed to reduce energy ned, the rate obtained is between
consumption in the building 50-60 kWh/m2/year.
sector are one of the priority
CASE mainstays of the Plan.
STUDY
RESULTS AND LESSONS LEARNT
These results of these different As far as specific buildings such
experiences has allowed the as the Cándido Domingo School
City of Zaragoza to endorse are concerned, an energy reduc-
on 24 July 2009 the “Municipal tion of 52% has been obtained
Bylaw on Energy Ecoefficiency coupled with the installation of a
and Use of Renewable Energy photovoltaic system (18 kW) that
in Buildings and its Facilities”, produce 40% of the electrical
and the “Municipal Bylaw on needs of the building.
Rehabilitation” on 25 June 2010.
Taking as a starting point this
Zaragoza now has a regulating
demonstration action, we have the
and legal tool compelling every
possibility of using this knowledge
new building and fully rehabili-
and experience in every municipal
tated dwellings in the municipal
building and equipment, a task we
area to comply on energy saving,
are right now focusing on.
energy efficiency and use of re-
newable energy guidelines. This is Aggregated information on buil-
a landmark municipal regulation as ding groups, through the planning
it is only through collective com- and construction of a real time
munity decisions and behaviour monitoring system with over
that a better, sustainable, use of 200 control points for housing,
resources can be obtained. allows us to evaluate the different
architectural solutions as well as
RENAISSANCE has made pos-
the daily energy habits of people
sible the exploration of new
living in the area, a key point for
construction techniques and
planning information and environ-
design materials. In short, this
mental public awareness on this
project has been a booster for
field.
following a path towards more
sustainable construction models.
Photovoltaic system
of “Colegio Domingo” School
RECOMMENDATIONS
. A political consensus is necessary on construction, 2. This political consensus must be based on scientific
energy saving and efficiency politics. In the municipal facts and economical studies. Short and long term
framework it’s important to boost political changes benefits for citizens’ lifestyle quality must be explained
that affect private property using and urban planning and demonstrated to prove investment security.
approach. It’s necessary to implement environmental
criteria in urban plans and general regulations on
construction and refurbishment.
FURTHER INFORMATION RENAISSANCE KEY DOCUMENTS :
www.renaissance-project.eu
http://www.zaragoza.es/ciudad/medioambiente/renaissance/renaissance.htm
AYUNTAMIENTO DE ZARAGOZA : Javier CELMA
unidadambiente@zaragoza.esYou can also read
