Solar production calculator
Estimate solar panel output for any location
Enter a site and a system size to get a year-1 solar production estimate — annual and month-by-month AC energy, specific yield, and capacity factor. Powered by NREL's PVWatts model on real solar-resource data, anywhere in the world.
System & site
Resolve a location above to enable the estimate. Tilt defaults to your site latitude.
Pick a location and system size, then run the estimate to see annual and monthly output.
Estimates come from NREL's PVWatts v8, which uses NSRDB solar data in the U.S. and an international resource dataset elsewhere — so production figures are available worldwide. Output depends on tilt, azimuth, array type, and assumed system losses; treat results as a year-1 design estimate, not a guarantee.