Autonomous Building for Citizens (ABC) with solar self-consumpltion for 62 social housing

The ABC demonstration building, built by Linkcity and Bouygues Construction, was born in 2011. It is prototype building that would be autonomous in terms of energy and resource consumption. It aims to achieve 70% annual energy autonomy (collective self-consumption with storage system from the photovoltaic farm on the roofs), a 2/3 reduction in water consumption from the city network and a 40% reduction in the volume of household waste. To achieve these objectives, the building produces and stores the energy and water needed by its inhabitants. In addition to the photovoltaic panels, grey water is recycled and reused for toilets, common areas and the vegetable garden. Rainwater is collected, purified and used for housing. Delivered in September 2020 after 2 years of work, the building has 42 intermediate rental units and 20 social rental units. ABC building is based on a series of innovative technologies integrated into its design (cork insulation, low-carbon concrete, etc.) and equipments (battery radiators, showers connected to recycling, consumption monitoring application, A+++ household appliances, etc.). Autonomy of the ABC building is above all achieved through the approach of user assistance, well beyond the technical aspects. It is a question of facilitating the emergence of a community of inhabitants, to generate knowledge share and emulation between peers. The Grenoble Habitat teams will monitor and analyse the building and the uses of its inhabitants for 5 years.