Average Solar Production in California USA

Data is from the NREL.gov app for average solar radiation energy per day in Los Angeles, California. We used this reference point to compute the solar radiation energy production per day (in kWh/m²), which changes throughout the year according to the month. Each month is different due to the changing relative trajectory of the sun.

To get the monthly production, we simply multiplied by the number of days for each month. Finally to get the annual production, we added up all of the monthly values.

The average solar panel surface area is estimated to be 1.5 square meters. The efficiency of converting solar radiation into energy is estimated to be 15%.

Month	Solar radiation per day	Solar radiation per month	Solar energy per month 1 panel	Solar energy per month 20 panels
January	4.47 kWh/m²	138.57 kWh/m²	31.18 kWh	623.57 kWh
February	5.04 kWh/m²	156.24 kWh/m²	35.15 kWh	703.08 kWh
March	6.25 kWh/m²	193.75 kWh/m²	43.59 kWh	871.88 kWh
April	6.89 kWh/m²	213.59 kWh/m²	48.06 kWh	961.16 kWh
May	7.15 kWh/m²	221.65 kWh/m²	49.87 kWh	997.43 kWh
June	6.99 kWh/m²	216.69 kWh/m²	48.76 kWh	975.11 kWh
July	7.51 kWh/m²	232.81 kWh/m²	52.38 kWh	1047.65 kWh
August	7.55 kWh/m²	234.05 kWh/m²	52.66 kWh	1053.23 kWh
September	6.81 kWh/m²	211.11 kWh/m²	47.50 kWh	950.00 kWh
October	5.77 kWh/m²	178.87 kWh/m²	40.25 kWh	804.92 kWh
November	5.03 kWh/m²	155.93 kWh/m²	35.08 kWh	701.69 kWh
December	4.07 kWh/m²	126.17 kWh/m²	28.39 kWh	567.77 kWh

Average solar production for all states