How much electricity do solar panels make in Manhattan, United States?
≈ 5,502 kWh a year
In Manhattan, United States, ten 400 W mono PERC solar panels (4 kWp) on a roof facing the equator at the best yearly tilt (30°) make about 5,502 kWh of electricity a year — 1,376 kWh for every installed kilowatt.
1,376 kWh/kWpspecific yield per year
30°best yearly panel tilt
1,434 kWh/m²yearly sunlight on level ground
Julybest month (December lowest)
Solar energy month by month in Manhattan
| Month | 4 kWp system (kWh) | per kWp (kWh) |
|---|---|---|
| January | 322 | 81 |
| February | 378 | 95 |
| March | 494 | 123 |
| April | 533 | 133 |
| May | 554 | 138 |
| June | 555 | 139 |
| July | 584 | 146 |
| August | 548 | 137 |
| September | 498 | 124 |
| October | 418 | 105 |
| November | 342 | 86 |
| December | 276 | 69 |
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.