How much would your roof produce?
An honest estimate in seconds, free and without an account.
You can also enter coordinates, for example 45.76, 4.84.
- Free, no account, your data never sold
- European Commission PVGIS solar data
- Every figure shows its assumptions and sources
How it works
Three steps, and every result shows what it rests on.
Your roof
Type your address. In France, SolarClair measures the pitch and orientation of your roof from IGN's LiDAR HD survey; you can correct them.
The sun, hour by hour
The engine computes the 8,760 hours of a year with the European Commission's PVGIS data, including the shade of the terrain around your home.
Production and payback
Production, self-consumption, battery, payback time: every figure shows its assumptions, its sources and their date.
Independent, and verifiable
SolarClair does not live off selling leads to installers. You don't have to take our word for it.
Your details are never sold
No lead sold, no sponsored ranking. Your address is used for the calculation, not to canvass you.
Cautious, public assumptions
14 % system losses, feed-in tariff with no yearly increase, tariffs and taxes dated and sourced.
An open method
The models, their sources and their known limits are described step by step.
≤ 0.95 %
deviation from the European Commission's PVGIS tool, over 205 cases in 30 places (tolerance: 2 %), engine 0.7.0. Recomputed whenever the engine changes.
Read the methodology See the deviation report against PVGIS