How much electricity do solar panels make in Zhongshan, People's Republic of China?
≈ 5,077 kWh a year
In Zhongshan, 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 5,077 kWh of electricity a year — 1,269 kWh for every installed kilowatt.
1,269 kWh/kWpspecific yield per year
15°best yearly panel tilt
1,501 kWh/m²yearly sunlight on level ground
Julybest month (February lowest)
Solar energy month by month in Zhongshan
| Month | 4 kWp system (kWh) | per kWp (kWh) |
|---|---|---|
| January | 339 | 85 |
| February | 311 | 78 |
| March | 359 | 90 |
| April | 405 | 101 |
| May | 481 | 120 |
| June | 461 | 115 |
| July | 506 | 127 |
| August | 489 | 122 |
| September | 469 | 117 |
| October | 473 | 118 |
| November | 414 | 103 |
| December | 371 | 93 |
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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