How much electricity do solar panels make in Nanchong, People's Republic of China?
≈ 3,948 kWh a year
In Nanchong, 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 3,948 kWh of electricity a year — 987 kWh for every installed kilowatt.
987 kWh/kWpspecific yield per year
15°best yearly panel tilt
1,135 kWh/m²yearly sunlight on level ground
Julybest month (December lowest)
Solar energy month by month in Nanchong
| Month | 4 kWp system (kWh) | per kWp (kWh) |
|---|---|---|
| January | 216 | 54 |
| February | 229 | 57 |
| March | 346 | 86 |
| April | 407 | 102 |
| May | 425 | 106 |
| June | 398 | 99 |
| July | 473 | 118 |
| August | 467 | 117 |
| September | 327 | 82 |
| October | 255 | 64 |
| November | 212 | 53 |
| December | 192 | 48 |
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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