Full Project Key Objectives (5 years programme) :

Work Package 3 meets the 3 following key project objectives:

➢ Objective 1: Rational Use of Energy (RUE) : The two communities collectively aim to achieve dramatic reductions in energy consumption from a minimum of 39% to a maximum of 71% above current building standards through innovative urban planning, building design, and specification and management practices.

➢ Objective 2: Use of Renewable Energy Systems (RES): The two communities collectively aim to achieve dramatic increases in the supply of renewable energy, from a minimum of 40% to a maximum of 60% of the resultant energy demand for heating, cooling and power, based on the implementation of competitive cost biomass, solar and wind generation systems.

➢ Objective 3: The environmental impact of the remaining energy supply needs in Renaissance communities will be reduced by an integrated approach to energy management involving innovative management practices and advanced energy services to achieve energy efficiency increases and reductions in installation/operating/maintenance costs.

Full Project detailed Objectives under WP3.2.1 & WP3.2.2 :

• WP3.2.1: Rational Use of Energy (RUE) in Lyon
See : Full Project objectives, Deliverables & Description of work

• WP3.2.2: Use of Renewable Energy Systems (RES) in Lyon
See : Full Project objectives, Deliverables & Description of work

• WP3.2: Management overview


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WP3.2.1: Rational Use of Energy (RUE) in Lyon

WP3.2.1: Full Project Objectives (5 years programme):

• To promote the adoption of high energy performance criteria as standard practice in Greater Lyon and by means of direct demonstration of new housing and commercial (offices and shops) building projects at a large scale community level in the Lyon-Confluence area.

WP3.2.1: Final Deliverables

• 61 150 m2 of new housing with an energy consumption for heating of 60 kWh/m2
• 15 631 m2 of new office with an energy consumption for heating of 40 kWh/m2

WP3.2.1: Description of work (5 years programme)

• Construction of 3 new sections of estate a with a total floor area of 76 781 m2 (respectively 19 100, 31 181 and 26 500 m2) matching the highest level of energy efficiency for heating, cooling and power through appropriate building positioning, solar passive design, sun protection, high performance windows, insulation, ventilation, natural light management, power consumption optimisation and introduction of high level of RES (see WP 3.3.2)
• Roughly 630 dwellings (61 150 m2) and 15 631 m2 of commercial areas(offices and shops) will be built and sold at market price by private developers, while roughly 120 dwellings (10 000 m2) of social housing will be hired to low-income families.
• These high energy efficiency standards will be included as compulsory specifications to be matched in a tendering procedure, thus demonstrating the feasibility of systematically apply such standards at the whole Greater Lyon Community level (1 200 000 inhabitants) and further to other large Communities in Rhone-Alps and in France.
• Street lighting based on LEDs technology saving 75 to 80 % of the usual power consumption for this application.
• Assessment of the feasibility of an ESCo in Lyon.
• These buildings will form the very first phase of a complete sustainable renewal plan of a large polluted and abandoned area (150 ha) quite close to the City centre including ground de-pollution, water management, local and transit transport infrastructure, with an objective to build a total of 1 200 000 m2 floor area of new buildings and to refurbish roughly 60 000 m2 of existing buildings by 2030.

Energy consumption set by the guidelines for the selection of developers at very low level:
Housing
• reduction of approx 40% of the head demand thanks to high insulation level
• reduction of approx 40% of the electricity demand thanks to high energy efficiency appliances
Office
• reduction of approx 40% of the head demand thanks to high insulation level
• reduction of approx 50% of the electricity demand thanks to high energy efficiency appliances

Specifications for housing set in the guidelines for the selection of developers:
• Building envelop with Umax = 0.7 W/m2.K
• Efficient ventilation systems limiting heat losses in wintertime
• Design for predominance of cross-ventilation (80% minimum of the dwellings)
• 80% of living rooms and bedrooms to be West-South-East-oriented
• Passive solar design allowing a maximum T° under 28°C except 40 days per year (no active cooling)
• Medium thermal inertia favouring natural cooling in night
• Thermally efficient windows (Uw< 1.9 W/m2.K) with solar protection
• Dynamic thermal modelling of detailed project compulsory
• Daylight to be favoured in common and circulatory parts
• Efficient power appliances in order to limit their contribution to indoor warming
• Zoned time and/or presence control in common parts, including car parks
• Highly efficient light bulbs in common and private parts

Specifications for offices set in the guidelines for the selection of developers:
• Building envelop with Umax = 0.7 W/m2.K
• Natural ventilation to be favoured, optimised active systems to be allowed if proven, necessary
• Passive solar design must allow a maximum T° under 28°C except 80 days per year (active cooling admitted only for peak demand)
• Thermally efficient windows (Ug< 1.9 W/m2.K) with solar protection
• Dynamic modelling of detailed projects compulsory
• Highly efficient electronic ballasts light bulbs and tubes with zoned time and/or presence control

WP3.2.2: Use of Renewable Energy Systems (RES) in Lyon

WP3.2.2: Full Project Objectives (4 years programme):

• To dramatically increase the use of renewable energy sources for heating, DHW and power at the community level, as compared to the usual standard.
• To demonstrate the feasibility of a successful technical and architectural integration of renewable energy production facilities (PV, solar and wood) in a dense urban area without problem.

WP3.2.2 : Final Deliverables

• 3 separate build-integrated wood-fuelled boilers with a total capacity of 2,4 MW (generation of 4 720 MWh/year)
• 1 243 m2 of build-integrated solar thermal collectors (generation of 550 MWh/year)
• 89 kWp building integrated PV system (generation of 89 MWh/year)
• When relevant with the level of deregulation of power market in France, green electricity purchase will be offered to local consumers so as to increase the total share of RES in their power mix.

WP3.2.2: Description of work (4 years programme)

• RES to supply 50% of commons electricity consumption and 80% of heat and DHW needs
• Increase the share of RES in heat consumption from 0% to 80% thank to the installation of Installation of 3 separate build-integrated wood-fuelled boilers with a total capacity of 2,4 MW and 1 243 m2 of build-integrated solar thermal collectors.
• Increase the share of RES in electricity consumption for common parts from 15% (average mix) to 50% thanks to the installation PV systems.
• Increase the share of RES in electricity consumption for cooling offices from 15% (average mix) to 25% thanks to the installation PV systems.
• The share of RES in total electricity consumption will be approximately 29% .
• Preliminary studies and exploratory inquiries for the promotion of a possible green electricity offer to local customers when the power market will be fully opened.

WP3.2 : Management overview