Check your roof on the Zonnekaart before buying solar panels
The free Zonnekaart scores each part of your roof for solar panels and estimates yield, cost and payback time.
Flanders · Subject to change
Sources checked on · next check by . Check the source before you act.
Enter your address on the Zonnekaart and it scores each part of your roof: green is ideal, yellow is usable, orange is limited or unsuitable. It also estimates the yield, cost and payback time, and shows where on the roof the yield is highest.
The map has limits. Its height data dates from 2013 to 2015, recent buildings get no score, and it does not check roof windows or whether the roof can carry the weight. Ask a certified installer to visit before you decide.
The rules around solar panels have changed: the turning-back meter ended in 2021, owners of solar panels have had to get a digital meter since 2025, and a capacity tariff applies since 2023. Since 1 April 2026, a surplus built up on an old turning-back meter is no longer compensated when the digital meter is installed. Running heavy appliances around midday, one after another, lets you use more of your own power and keeps your peak lower.
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 | The Zonnekaart estimates yield and payback time for your own roof. (confidence: medium) |
| Who acts | You (owner) |
| Needs landlord's agreement | No |
| Type | Existing service |
Do this together with
Sources
- Zonnekaart: is uw dak geschikt voor zonneboiler of zonnepanelen? (in Dutch) · Vlaamse overheid (vlaanderen.be) (official source) · checked on
- Retroactieve investeringspremie na afschaffing van de terugdraaiende teller (in Dutch) · Vlaamse overheid (vlaanderen.be) (official source) · checked on
- Ik heb vóór 2021 zonnepanelen laten plaatsen: hoe zit het met de digitale meter? (in Dutch) · Fluvius (official source) · checked on
- Haal meer uit uw zonnepanelen met zelfverbruik (in Dutch) · Vlaamse overheid (vlaanderen.be) (official source) · checked on
- Wat is de rol van de digitale meter bij zonnepanelen? (in Dutch) · Fluvius (official source) · checked on