From 30 July 2025, companies with an annual energy uptake of more than 1,000 MWh will be required to install a minimum of 12.5 Wp per m² of roof area.

As a self-employed person or company, you can deduct part of your taxable profit: 8% for the one-off investment deduction and 13.5% for increased investment deduction. Moreover, you can spread the depreciation of your solar panels over several years, further reducing the final financial cost of your installation.

1. Sufficient space:
Minimum 150 m² roof space in Flanders, 40 m² in Wallonia,
or equivalent space on the ground.

2. Correct location:
A roof facing south, south-east or south-west is
ideal for maximum power output.

3. Building permit:
Usually not required for roofs, but required for carports,
ground installations and listed buildings.

4. Stability:
Your roof should be able to support at least 25 kg/m². A stability study and
inspection of the electrical installation are mandatory.