How much electricity do solar panels make in Bucharest, Romania?
≈ 5,301 kWh a year
In Bucharest, Romania, ten 400 W mono PERC solar panels (4 kWp) on a roof facing the equator at the best yearly tilt (30°) make about 5,301 kWh of electricity a year — 1,325 kWh for every installed kilowatt.
1,325 kWh/kWpspecific yield per year
30°best yearly panel tilt
1,399 kWh/m²yearly sunlight on level ground
Julybest month (December lowest)
Solar energy month by month in Bucharest
| Month | 4 kWp system (kWh) | per kWp (kWh) |
|---|---|---|
| January | 242 | 60 |
| February | 301 | 75 |
| March | 456 | 114 |
| April | 529 | 132 |
| May | 595 | 149 |
| June | 590 | 147 |
| July | 624 | 156 |
| August | 605 | 151 |
| September | 493 | 123 |
| October | 398 | 100 |
| November | 249 | 62 |
| December | 219 | 55 |
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.