Results are for reference only. These are estimates from climate averages, not a site survey — get a professional assessment before buying or sizing a real system.
Geography · energy

Solar PV Estimator

Roughly how much energy will a solar array make over a year, where you are?
E = A · η · H · PR
London

System

size it up
4.0 kWp
20%
35°
0.80

Monthly generation

drag a bar to read its month ·
monthly output (kWh) summer peak climate-average estimate
Results
System detail
Relationships

What drives the yield

cyan markers track your current system
Field notes

How a yield estimate is built