How much electricity do solar panels make in Vienna, Austria?
≈ 4,697 kWh a year
In Vienna, Austria, ten 400 W mono PERC solar panels (4 kWp) on a roof facing the equator at the best yearly tilt (35°) make about 4,697 kWh of electricity a year — 1,174 kWh for every installed kilowatt.
1,174 kWh/kWpspecific yield per year
35°best yearly panel tilt
1,211 kWh/m²yearly sunlight on level ground
Julybest month (December lowest)
Solar energy month by month in Vienna
| Month | 4 kWp system (kWh) | per kWp (kWh) |
|---|---|---|
| January | 198 | 50 |
| February | 266 | 67 |
| March | 417 | 104 |
| April | 511 | 128 |
| May | 543 | 136 |
| June | 540 | 135 |
| July | 555 | 139 |
| August | 528 | 132 |
| September | 437 | 109 |
| October | 336 | 84 |
| November | 198 | 49 |
| December | 166 | 42 |
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.