How much electricity do solar panels make in Chongqing, People's Republic of China?
≈ 3,789 kWh a year
In Chongqing, 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 (15°) make about 3,789 kWh of electricity a year — 947 kWh for every installed kilowatt.
947 kWh/kWpspecific yield per year
15°best yearly panel tilt
1,095 kWh/m²yearly sunlight on level ground
Julybest month (December lowest)
Solar energy month by month in Chongqing
| Month | 4 kWp system (kWh) | per kWp (kWh) |
|---|---|---|
| January | 184 | 46 |
| February | 217 | 54 |
| March | 330 | 82 |
| April | 379 | 95 |
| May | 388 | 97 |
| June | 368 | 92 |
| July | 490 | 122 |
| August | 479 | 120 |
| September | 341 | 85 |
| October | 241 | 60 |
| November | 203 | 51 |
| December | 170 | 43 |
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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