The construction of a zero energy building requires taking into account the energy dimension from the project decision phase.
In the case of a new construction, three aspects are particularly important:
- The potential of photovoltaic production.
- The orientation of the building to optimize solar gains.
- Potential access to geothermal resources.
When it comes to a renovation project, urbanistic constraints, such as the impossibility of external insulation on facade visible for the street, can be decisive.