How much electricity do solar panels make in Patna, India?
≈ 5,932 kWh a year
In Patna, India, ten 400 W mono PERC solar panels (4 kWp) on a roof facing the equator at the best yearly tilt (20°) make about 5,932 kWh of electricity a year — 1,483 kWh for every installed kilowatt.
1,483 kWh/kWpspecific yield per year
20°best yearly panel tilt
1,743 kWh/m²yearly sunlight on level ground
Marchbest month (December lowest)
Solar energy month by month in Patna
| Month | 4 kWp system (kWh) | per kWp (kWh) |
|---|---|---|
| January | 397 | 99 |
| February | 478 | 120 |
| March | 613 | 153 |
| April | 606 | 151 |
| May | 587 | 147 |
| June | 490 | 123 |
| July | 438 | 110 |
| August | 477 | 119 |
| September | 465 | 116 |
| October | 519 | 130 |
| November | 468 | 117 |
| December | 393 | 98 |
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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