How much electricity do solar panels make in Najafgarh, India?
≈ 6,184 kWh a year
In Najafgarh, India, ten 400 W mono PERC solar panels (4 kWp) on a roof facing the equator at the best yearly tilt (25°) make about 6,184 kWh of electricity a year — 1,546 kWh for every installed kilowatt.
1,546 kWh/kWpspecific yield per year
25°best yearly panel tilt
1,798 kWh/m²yearly sunlight on level ground
Marchbest month (January lowest)
Solar energy month by month in Najafgarh
| Month | 4 kWp system (kWh) | per kWp (kWh) |
|---|---|---|
| January | 415 | 104 |
| February | 492 | 123 |
| March | 626 | 157 |
| April | 623 | 156 |
| May | 608 | 152 |
| June | 525 | 131 |
| July | 474 | 118 |
| August | 483 | 121 |
| September | 517 | 129 |
| October | 548 | 137 |
| November | 451 | 113 |
| December | 422 | 106 |
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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