How much electricity do solar panels make in Datong, People's Republic of China?
≈ 6,451 kWh a year
In Datong, People's Republic of China, ten 400 W mono PERC solar panels (4 kWp) on a roof facing the equator at the best yearly tilt (35°) make about 6,451 kWh of electricity a year — 1,613 kWh for every installed kilowatt.
1,613 kWh/kWpspecific yield per year
35°best yearly panel tilt
1,612 kWh/m²yearly sunlight on level ground
Marchbest month (December lowest)
Solar energy month by month in Datong
| Month | 4 kWp system (kWh) | per kWp (kWh) |
|---|---|---|
| January | 473 | 118 |
| February | 486 | 121 |
| March | 643 | 161 |
| April | 620 | 155 |
| May | 629 | 157 |
| June | 535 | 134 |
| July | 525 | 131 |
| August | 541 | 135 |
| September | 520 | 130 |
| October | 553 | 138 |
| November | 487 | 122 |
| December | 441 | 110 |
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.
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