How much electricity do solar panels make in Stockholm, Sweden?
≈ 4,126 kWh a year
In Stockholm, Sweden, ten 400 W mono PERC solar panels (4 kWp) on a roof facing the equator at the best yearly tilt (40°) make about 4,126 kWh of electricity a year — 1,031 kWh for every installed kilowatt.
1,031 kWh/kWpspecific yield per year
40°best yearly panel tilt
1,006 kWh/m²yearly sunlight on level ground
Junebest month (December lowest)
Solar energy month by month in Stockholm
| Month | 4 kWp system (kWh) | per kWp (kWh) |
|---|---|---|
| January | 89 | 22 |
| February | 172 | 43 |
| March | 379 | 95 |
| April | 499 | 125 |
| May | 580 | 145 |
| June | 582 | 145 |
| July | 564 | 141 |
| August | 494 | 123 |
| September | 373 | 93 |
| October | 238 | 60 |
| November | 106 | 27 |
| December | 49 | 12 |
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.