Check your roof on the Walloon solar map
The Walloon solar map gives a free first estimate of what your roof could do with solar panels or a solar water heater. Use it before you ask installers for quotes.
Wallonia · Subject to change
Sources checked on · next check by . Check the source before you act.
The Walloon Region's solar map (cartosolaire.wallonie.be) estimates the potential of your roof for solar panels that make electricity and for a solar water heater. Type in your address and it suggests a number of panels and their power, with an estimate of the cost, how much of your own use they could cover, the yearly saving and the payback time. The suggestion takes your consumption into account. The map is free and works in French and German.
The estimate is built from laser (LiDAR) scans of the roofs, building outlines, roof orientation and tilt, and 15 years of weather data. It is a first estimate, not a site visit: use it to see whether solar is worth looking into before you ask installers for quotes.
We advise choosing an installer who holds a SER certificate (the joint certification also known as RESCert). No citation Wallonia, Flanders and Brussels run this certification together for installers of solar panels, solar water heaters, heat pumps, shallow geothermal systems and biomass boilers; a certificate is valid for 7 years and counts in all three regions. The SPW page describes the certification but does not say that a home installation must be done by a certified installer.
Details
| Impact | Indirect · This saves no energy by itself: it is a rule, a service, a contract, or a health or safety item. How we rate impact |
|---|---|
| Estimated saving | Estimation tool; it estimates savings and payback for your roof but saves nothing by itself. (confidence: low) |
| Who acts | You (owner) |
| Needs landlord's agreement | No |
| Type | Existing service |
Do this together with
Sources
- Cartographie Solaire en Wallonie (in French) · Service public de Wallonie (SPW Énergie) (official source) · checked on
- Cartographie solaire en Wallonie (in French) · SPW Énergie and GIM (Club des utilisateurs du PICC) (official source) · checked on
- Quel est le potentiel solaire de votre toit ? Est-il idéal pour des panneaux ? Découvrez le nouvel outil de la Région wallonne (in French) · RTBF (with Belga) (media) · checked on
- Pour les installateurs (in French) · Service public de Wallonie (SPW Énergie) (official source) · checked on