The neighbourhood of Mantes-la-Jolie consists of a very large social housing and private housing estate built in the 1960s. Since then, the district gradually declined and is facing serious urban, economic and social problems. While social housing makes some improvements, private housing (around 24 % of 6.000 homes) is still in a rundown state.
These co-owned multi-storey homes require a lot of heating and use large amounts of domestic hot water as a result of poor insulation. To tackle these problems, EPAMSA initiated the Energy Performance Contract (EPC). The contract was an innovative tool adapted to energy retrofits and offered a long-term solution to the problems co-owned properties face.
Organisational steps
The implementation of the EPC can be described in ten steps: joining the trade-union councils, carrying out studies, preparing the contract, launching a consultation procedure with companies, entering into a competitive dialogue, including co-owners in the analysis, financing and funding, convincing the banks, signing and beginning the retrofitting works and, finally, monitoring the work as well as organising long-term support.
Challenges and solutions
A French law for the national commitment for the environment was passed in 2009. From this law the EPC emerged with the main goal of guaranteeing a fixed level of energy consumption to contractors. A consortium of companies agreed upon a guaranteed level of energy consumption and carried out the required retrofitting work. The large scale thermal insulation works led to significant reductions in utility bills for the co-owners as well as reduced energy use. The EPC has supported 132 land-lords of two co-owned properties.
Some concrete key performance indicators (KPIs): Support for two co-owned properties with 132 landowners.
The project started in 2016 and was completed in 2020.
The partners of the project were: the local public agency responsible for urban development and renovations EPAMSA (Établissement public d’aménagement du Mantois Seine Aval.
The Energy Performance Contracts were part of the collection of best practices made over three years by the partners of the Interreg NWE funded project „Climate Active Neighbourhoods“. The multi-national consortium based in Belgium, France, Germany, the Netherlands and the UK has closely collaborated on methods and solutions for realising a low carbon future, increased energy efficiency and a socially just energy transition on the neighbourhood level.
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Countries impacted:
France -
Geographical scale:
Regional and Local -
Energy poverty phase:
Diagnosis -
Intervention type:
Household energy efficiency and refurbishment -
Professionals involved:
Member of a local/national authority -
Partners involved:
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Type of funding:
Supported by the INTERREG North-West Europe Programme -
Website:
Case website -
SDGs addressed:
