Providing guidance for high environmental value projects requires careful study of the characteristics of the building’s shell and its facilities in order to:

• ensure more rational use of energy (improvements to insulation, use of a district heating network, integration of a natural cooling system, etc.)
• use of renewable energy sources

The technical-economic feasibility study assesses the potential of low carbon emission technologies, in order to choose the form of energy production best suited to the building.

In addition, carrying out a feasibility study helps obtain 1 BREEAM credit.