News

Evolution of targeted performances of demo projects in Nantes

© Nantes Métropole

Since its initiation in 2003, act2 project has always consisted in supporting a technical dialogue on the energy between the Ile de Nantes district developer (SAMOA, mandated by Nantes Metropole local authority) and the building developers (mainly real estate promoters and social housing companies). This permanent dialogue is led with the objective of, via the demonstration projects, allowing a general upgrading of energy performances at the Ile de Nantes and Nantes Metropole scales. To do so, this approach was supported in different ways, such as the definition of sets of energy prescriptions, the promotion of district heating, the involvement of energy experts along the development of the district and the buildings and the co-funding of energy efficiency measures in social housing.

Whereas next regulation will impose BBC (*) standard in respectively 2011 and 2013 for newly deposited tertiary and housing projects, act2 partners anticipate this change in its demonstration programme and accompany developers in their quality assurance process.

(*) BBC stands for ‘Bâtiment Basse Consommation' (Low Consumption Building) and corresponds to the highest energy standard defined in French Thermal Regulation (50 kWh/m².a in housing projects and cut by 50% of the reference energy consumption in Tertiary buildings.