How much electricity do solar panels make in Phoenix, United States?
≈ 7,712 kWh a year
In Phoenix, United States, ten 400 W mono PERC solar panels (4 kWp) on a roof facing the equator at the best yearly tilt (30°) make about 7,712 kWh of electricity a year — 1,928 kWh for every installed kilowatt.
1,928 kWh/kWpspecific yield per year
30°best yearly panel tilt
2,129 kWh/m²yearly sunlight on level ground
Maybest month (December lowest)
Solar energy month by month in Phoenix
| Month | 4 kWp system (kWh) | per kWp (kWh) |
|---|---|---|
| January | 555 | 139 |
| February | 560 | 140 |
| March | 710 | 177 |
| April | 729 | 182 |
| May | 747 | 187 |
| June | 698 | 175 |
| July | 652 | 163 |
| August | 655 | 164 |
| September | 651 | 163 |
| October | 664 | 166 |
| November | 575 | 144 |
| December | 517 | 129 |
How these numbers were calculated
NASA POWER long-term monthly means on a 1° grid around the city, the monthly method of Duffie & Beckman (isotropic sky, each month's average day), panel temperature from NOCT, 10 % other losses and a 96 % inverter. No shading, snow or product-specific data; expect ±10 % against a detailed tool such as PVGIS. To change the number of panels, their rating, tilt, direction or your roof size, use Blorp's free solar roof tool — every result shows its equation and the numbers used.