How much electricity do solar panels make in Hangzhou, People's Republic of China?
≈ 4,606 kWh a year
In Hangzhou, 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 (20°) make about 4,606 kWh of electricity a year — 1,151 kWh for every installed kilowatt.
1,151 kWh/kWpspecific yield per year
20°best yearly panel tilt
1,290 kWh/m²yearly sunlight on level ground
Julybest month (January lowest)
Solar energy month by month in Hangzhou
| Month | 4 kWp system (kWh) | per kWp (kWh) |
|---|---|---|
| January | 291 | 73 |
| February | 291 | 73 |
| March | 400 | 100 |
| April | 431 | 108 |
| May | 446 | 111 |
| June | 381 | 95 |
| July | 489 | 122 |
| August | 475 | 119 |
| September | 391 | 98 |
| October | 390 | 98 |
| November | 309 | 77 |
| December | 311 | 78 |
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.
Other cities in People's Republic of China
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