Subsidises investments aimed at improving the energy efficiency of company buildings, such as roof insulation, outer-wall insulation, floor insulation, relighting, heat pumps, etc. The subsidies are meant only for the building improvements, not for making products or production processes more efficient.

Funding: €0.035 for each saved primary Kwh with a maximum of € 25 000 per investment. In case of improvements to existing installations, only the extra costs are eligible.