Lyon, France
The Greater-Lyon Urban Community (Grand Lyon): As the capital-city of the Rhone-Alps Region, which is at the peak of sustainable energy development in France, the Greater-Lyon demonstrates through its direct participation in this project its will to make environment-friendly urban and building design a major axis of its commitment toward sustainable development. Drawn out from lessons learnt through the previous EC program RESTART, they intend through RENAISSANCE to upgrade, accelerate and generalise the highest energy standards for all new and retrofitted construction operation in the 1.2 million inhabitants area under their responsibility.
The Lyon’s project involves around 75 000 m² of exclusively new buildings for which tendering procedure has included specific targets both for Renewable Energy Sources (RES) and Energy Efficiency (EE), a comprehensive method that guarantees the best integration of those two main technical components of a sustainable construction approach.
The CONCERTO approach
With this site, an integrated energy approach is being pursued, involving polygeneration, around 800 m² of solar thermal panels, 1800 m² of PV panels, and 3 wood-fired boilers with natural gas backup. These energy sources will provide heating and hot water for all the project´s area buildings, with over 80% of the final energy needs being met from sustainable energy sources.
Use of Renewable Energy Sources
• Photovoltaics
• Solar thermal
• Thermal Use of Biomass
Low Carbon Technologies
• Insulation
• Glazing, Windows
Highlights
Poly-generation through the combination of solar thermal panels (489 m²), on-site wood-fired boilers (about 2 MW cumulated) with natural gas back-up provides a fully secured supply system for heating and DHW for all RENAISSANCE area buildings, with a significant ratio of sustainable energy sources over 80% of final needs. More than 800 kWp of photovoltaic (PV), added to the 11% of RES from grid-based mix, will provide over 60% of the power needs of residential common parts and 30% of whole offices demand.

Demonstration site in Lyon
This project is the very first one in France on this scale (78,820 m²) to reduce to this extent the consumption of conventional energy (-77% compared to standard practice).
Site facts & figures
• Estimated population involved: 4,000
• Approx. geographical area coverage: 4 ha
• Approx. energy saving: exp. 77%
• Approx. energy from RES: exp. 80%
The consortium
• Greater-Lyon
• SPLA Lyon-Confluence
• HESPUL
• Local Agency on Energy of Greater-Lyon (ALE)
• Engineer Office ENERTECH
• Centre for thermal energy of Lyon (INSA-CETHIL)
• Company Lyon Confluence La Presqu´il (LOT A)
• Company Lyon Islands (LOT B)
• Company La Confluence-Ilot C (LOT C)
The Greater-Lyon Urban Community (Grand Lyon): As the capital-city of the Rhone-Alps Region, which is at the peak of sustainable energy development in France, the Greater-Lyon demonstrates through its direct participation in this project its will to make environment-friendly urban and building design a major axis of its commitment toward sustainable development. Drawn out from lessons learnt through the previous EC program RESTART, they intend through RENAISSANCE to upgrade, accelerate and generalise the highest energy standards for all new and retrofitted construction operation in the 1.2 million inhabitants area under their responsibility.
The Lyon’s project involves around 75 000 m² of exclusively new buildings for which tendering procedure has included specific targets both for Renewable Energy Sources (RES) and Energy Efficiency (EE), a comprehensive method that guarantees the best integration of those two main technical components of a sustainable construction approach.
The CONCERTO approach
With this site, an integrated energy approach is being pursued, involving polygeneration, around 800 m² of solar thermal panels, 1800 m² of PV panels, and 3 wood-fired boilers with natural gas backup. These energy sources will provide heating and hot water for all the project´s area buildings, with over 80% of the final energy needs being met from sustainable energy sources.
Use of Renewable Energy Sources
• Photovoltaics
• Solar thermal
• Thermal Use of Biomass
Low Carbon Technologies
• Insulation
• Glazing, Windows
Highlights
Poly-generation through the combination of solar thermal panels (489 m²), on-site wood-fired boilers (about 2 MW cumulated) with natural gas back-up provides a fully secured supply system for heating and DHW for all RENAISSANCE area buildings, with a significant ratio of sustainable energy sources over 80% of final needs. More than 800 kWp of photovoltaic (PV), added to the 11% of RES from grid-based mix, will provide over 60% of the power needs of residential common parts and 30% of whole offices demand.

Demonstration site in Lyon
This project is the very first one in France on this scale (78,820 m²) to reduce to this extent the consumption of conventional energy (-77% compared to standard practice).
Site facts & figures
• Estimated population involved: 4,000
• Approx. geographical area coverage: 4 ha
• Approx. energy saving: exp. 77%
• Approx. energy from RES: exp. 80%
The consortium
• Greater-Lyon
• SPLA Lyon-Confluence
• HESPUL
• Local Agency on Energy of Greater-Lyon (ALE)
• Engineer Office ENERTECH
• Centre for thermal energy of Lyon (INSA-CETHIL)
• Company Lyon Confluence La Presqu´il (LOT A)
• Company Lyon Islands (LOT B)
• Company La Confluence-Ilot C (LOT C)
CONCERTO is co-financed by the