Bouygues Immobilier is a leading private property developer in France and Europe, with 1,908 employees at 31 December 2017 and sales of €2,712 million in 2017. With 39 branches in France and four outside France, Bouygues Immobilier has nearly 60 years' experience in developing residential, corporate and commercial projects in more than 250 towns and cities. Bouygues Immobilier has a strong commitment to innovation and sustainable development and therefore seeks to provide better quality of life over the long term for all its customers by making their experience of the buying process and the use they make of the living spaces and services created for them as pleasant as possible. Bouygues Immobilier is the first developer to be certified ISO 9001 in France, NF Habitat HQE, and Top Employer France 2017, and to win the 2016 prize for the best customer relations awarded by the French Customer Relations Association (AFRC).
Cofely, a subsidiary of GDF Suez, and Bouygues Immobilier have signed a contract for the design, financing, construction, operation, and maintenance for 18 years of a heating network for the Ginko eco-neighbourhood in Bordeaux. Cofely’s investment amounts to 6.6 million euros, for total sales of around 30 million euros.
Cofely has undertaken to produce all its heat using renewable energy sources. To do so, it will use wood energy and also vegetable oil. The yearly fuel demand for the 2,200 apartments and public amenities (primary school, middle school, gymnasium) is estimated at 4500 tonnes of wood and 500 m3 of vegetable oil, all of which will be produced locally. The heat will be distributed by means of a 5.2-km-long urban network.
Compared to burning of fossil fuels, using renewable energies for the entire heating demand will save discharge of 3,500 tonnes per year of CO2 into the atmosphere, i.e. the equivalent of the annual discharge of 2,300 vehicles.
Cofely will also provide a warm water loop (between 20°C and 35°C) to provide cooling for the Ginko retail and office space. The process involves recovery and exchange of energy produced by heat pumps. It will enhance the environmental and economic balance of the eco-neighbourhood. Coming after the Limeil-Brévannes and Brétigny-sur-Orge projects, Ginko is another example of Cofely’s commitment to using biomass for heating in eco-neigbourhoods.
For Bouygues Immobilier, the heating system is a key factor in the Ginko lakeside development project in Bordeaux, which won the Energy Efficiency and Renewable Energies Prize awarded by the French Ministry of Ecology, Energy, Sustainable Development, and the Sea at the first national conference on sustainable towns and cities.
Work on the energy-production systems will start in January 2011. The system is due to be operating in June 2012.