Solar energy in Oklahoma City, United States
Average irradiation 4.73 kWh/m²/day · ~1381 kWh per kWp per year
Monthly solar irradiation & temperature in Oklahoma City (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 2.82 | 2.8 | 68 |
| Feb | 3.43 | 4.7 | 83 |
| Mar | 4.48 | 10.8 | 109 |
| Apr | 5.53 | 16.0 | 134 |
| May | 5.96 | 21.0 | 145 |
| Jun | 6.92 | 26.0 | 168 |
| Jul | 6.90 | 28.8 | 168 |
| Aug | 6.22 | 28.0 | 151 |
| Sep | 5.14 | 23.4 | 125 |
| Oct | 3.97 | 16.2 | 97 |
| Nov | 3.00 | 9.7 | 73 |
| Dec | 2.40 | 3.8 | 58 |
Solar potential of Oklahoma City explained
Oklahoma City receives an average of 4.73 kilowatt-hours of solar energy per square metre per day, measured over four decades of satellite observation. In practical terms, every kilowatt-peak of installed PV capacity yields about 1381 kWh of electricity per year here, assuming a well-oriented system with a typical 80% performance ratio. This places Oklahoma City among the stronger solar locations globally — comparable to southern Spain or California.
Frequently asked questions
Is solar worth it in Oklahoma City?
With 4.73 kWh/m²/day of average irradiation, a 1 kWp system in Oklahoma City produces roughly 1381 kWh per year. That is an excellent solar resource — payback periods are typically among the shortest worldwide.
How much electricity would a 5 kW system produce in Oklahoma City?
Approximately 7,000 kWh per year — enough to cover a large share of a typical household's consumption.
What data is this based on?
Long-term satellite observations from NASA POWER (1981–present) and the PVGIS SARAH3 database, assuming a performance ratio of 80%.
Compare with nearby cities
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