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Solar production by city

How many kilowatt-hours a home solar system makes in a typical year in six Southern California cities.

Production by city

CitykWh per kW a yearYour system, kWh a year
Los Angeles1,676—
Palmdale1,835—
Chula Vista1,696—
Huntington Beach1,643—
Riverside1,696—
Santa Clarita1,724—
NLR (formerly NREL) PVWatts v8 typical-year weather · roof mount, 20° tilt, facing south, 14% system losses

How it is calculated

  1. Typical-year weatherHourly sun and temperature for each city from the NSRDB typical meteorological year.
  2. PVWatts modelA standard roof-mounted module, 20° tilt facing south, 14% system losses.
  3. Your sizeAnnual kWh per kW × your system size. Real output changes with shading, roof direction and local losses.