Evaluate the energy performance of your lighting system
Relamping an industrial building

Standard NF EN 15193 (Energy performance of buildings – Energy requirements for lighting) provides a methodology for calculating lighting consumption for new or renovated buildings, in line with the criteria of directive européenne sur la performance énergétique des bâtiments (DE 2 002/91/CE).

The building's lighting consumption is expressed in kWh. m -² per year, in the form of the W/A indicator with :

• W total power (in W) consumed by lighting (lamps and control gear) ;

• A total useful floor area (in m²) of the building.

The target for new business premises is 7 W/m ², in line with current French thermal regulations.