Solar Power · Production estimator

Estimated annual
solar generation

Calculate how much energy your system produces per year based on its location, the roof tilt and orientation, and the module type and count. The model uses irradiation by latitude and climate, transposition to the tilted plane and system losses.

Latitude · Longitude (degrees). Tap 📍 to detect.
South SE SW East West North
Overall losses: temperature, inverter, wiring, soiling, shading and mismatch.
Surroundings reflectance (0,2 typical; snow 0,5–0,8).
0 if the modules are not bifacial (typically 3–10 %).
If you know the real value (PVGIS/NASA), enter it for higher accuracy. 0 = estimate from climate.
To estimate annual savings (self-consumption).
Emissions avoided per kWh generated.

01Estimated monthly production

02System summary

03Solar resource & system

04Savings & avoided emissions (estimate)

Indicative figures. The energy is an estimate based on average climate data; for a certified calculation use a measured source such as PVGIS, NASA POWER or an on-site shading study.