How much electricity do solar panels make in Warsaw, Poland?
≈ 4,300 kWh a year
In Warsaw, Poland, ten 400 W mono PERC solar panels (4 kWp) on a roof facing the equator at the best yearly tilt (35°) make about 4,300 kWh of electricity a year — 1,075 kWh for every installed kilowatt.
1,075 kWh/kWpspecific yield per year
35°best yearly panel tilt
1,096 kWh/m²yearly sunlight on level ground
Maybest month (December lowest)
Solar energy month by month in Warsaw
| Month | 4 kWp system (kWh) | per kWp (kWh) |
|---|---|---|
| January | 141 | 35 |
| February | 217 | 54 |
| March | 381 | 95 |
| April | 485 | 121 |
| May | 549 | 137 |
| June | 541 | 135 |
| July | 530 | 132 |
| August | 502 | 125 |
| September | 407 | 102 |
| October | 291 | 73 |
| November | 146 | 36 |
| December | 109 | 27 |
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.