How much electricity do solar panels make in Perm, Russia?
≈ 4,050 kWh a year
In Perm, Russia, ten 400 W mono PERC solar panels (4 kWp) on a roof facing the equator at the best yearly tilt (40°) make about 4,050 kWh of electricity a year — 1,013 kWh for every installed kilowatt.
1,013 kWh/kWpspecific yield per year
40°best yearly panel tilt
982 kWh/m²yearly sunlight on level ground
Maybest month (December lowest)
Solar energy month by month in Perm
| Month | 4 kWp system (kWh) | per kWp (kWh) |
|---|---|---|
| January | 146 | 37 |
| February | 265 | 66 |
| March | 386 | 96 |
| April | 468 | 117 |
| May | 550 | 138 |
| June | 528 | 132 |
| July | 550 | 138 |
| August | 451 | 113 |
| September | 321 | 80 |
| October | 192 | 48 |
| November | 102 | 26 |
| December | 91 | 23 |
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.