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Extension and refurbishment of Vela Verde building in Lyon

Case study
France

Extension and refurbishment of Vela Verde building in Lyon

24 May 2023
This higher education school building has been refurbished to reach a high level of "Haute Qualité Environnementale", which is a standard for green buildings in France.
Editorial Team

The project has followed a low-carbon and circular economy approach by using reused, biosourced, geosourced, recycled or recyclable products. It also contributed to the reduction of heat islands with its green surfaces.

Concerning the heating system, a greenhouse gas-free heat pump has been installed on the roof and it covers 70% of the building´s needs. This heat pump operates without electrical resistance and stores heat in winter and cold in summer. This is supported also by a self-consumption photovoltaic plant on the roof.

Energy consumption

Calculation method : RT existant

Breakdown for energy consumption : Heating (electric) Cep = 21,1 kwhEp/m² (in French) Cooling (electric) Cep = 6.35 kwhEp/m² (electricity) Lighting (electric) Cep = 11.69 kwhEp/m² (electricity) Auxiliary (electric) Cep = 4.22 kwhEp/m² (electricity) Ventilation (electric) = 24.41 kwhEp/m². Photovoltaic (electric) Cep = 2.26 kwhEp/m².

Primary energy need : 65,52 kWhep/m2.an

Primary energy need for standard building : 99,02 kWhep/m2.an

Initial consumption : 187,12 kWhep/m2.an

Real final energy consumption

Final Energy : 25,40 kWhef/m2.an

Original source

Geographic coverage
Local (city or municipality)