Bouygues Immobilier aims to design buildings that not only consume very little energy but also produce more than they consume. After designing France's first large-scale, positive-energy office building in France, the 22,500-m² Green Office® Meudon, and its first positive-energy residential programmes, Bouygues Immobilier now intends to scale its know-how up to neighbourhood level.
Positive energy – Residential and office property – Bouygues Immobilier
Positive-energy buildings produce more energy than they consume for their operation. In order to achieve this feat of technological prowess, they have to both reduce their energy needs and produce energy from renewable sources, such as thermal or photovoltaic solar panels, heat pumps, wind turbines and cogeneration plants
Green Office® positive-energy office buildings
In 2011, Bouygues Immobilier inaugurated Green Office® Meudon, the first large-scale, positive-energy building in France. A showcase for Bouygues Immobilier's know-how in positive-energy buildings, Green Office® Meudon is a highly ambitious project. Thanks to bioclimatic design and the use of renewable energy sources, the cutting-edge building produces more energy than it consumes. Self-sufficient in energy terms in winter, Green Office® Meudon is a net producer of electricity in summer. This performance represents a 4,000-tonne reduction in the building's greenhouse gas emissions. Let seven months before delivery to Steria, an IT services company, Green Office® Meudon is a response to growing demand from companies looking to demonstrate their sustainable development credentials while cutting their operating costs.
Combined with an Energy Performance Contract, these positive-energy buildings guarantee users long-term control over operating costs.
The first positive-energy apartment buildings
Bouygues Immobilier had already sought BBC-Effinergie® low-energy certification for all its residential programmes from 2010. Now the company has passed a new milestone, delivering its first positive-energy apartment buildings. L'Avance in Montreuil, near Paris, and Vert Eden at Aix-en-Provence, in the south of France, combine energy efficiency with a high-quality living environment. With bioclimatic design, these cutting-edge projects make use of natural light and ventilation, optimum insulation and renewable energy sources
From building to neighbourhood
Sustainable neighbourhoods have become a priority for local authorities looking to the future. Drawing on its green property expertise, Bouygues Immobilier aims to develop growing numbers of positive-energy neighbourhoods. The Wacken project in Strasbourg, eastern France, is an illustration of this policy. As the first positive-energy neighbourhood in France, the 100,000-m² development seeks to strike a balance between energy production, consumption and storage.
At Châtenay-Malabry, near Paris, Bouygues Immobilier is taking part in a project to develop what will be the first positive-energy, mixed-use urban area in the Paris region. By reducing energy consumption and producing energy from renewable sources, the project aims to be entirely self-sufficient in energy terms.