How much electricity do solar panels make in Nagoya, Japan?
≈ 5,285 kWh a year
In Nagoya, Japan, ten 400 W mono PERC solar panels (4 kWp) on a roof facing the equator at the best yearly tilt (30°) make about 5,285 kWh of electricity a year — 1,321 kWh for every installed kilowatt.
1,321 kWh/kWpspecific yield per year
30°best yearly panel tilt
1,410 kWh/m²yearly sunlight on level ground
Maybest month (December lowest)
Solar energy month by month in Nagoya
| Month | 4 kWp system (kWh) | per kWp (kWh) |
|---|---|---|
| January | 370 | 93 |
| February | 388 | 97 |
| March | 498 | 125 |
| April | 506 | 127 |
| May | 520 | 130 |
| June | 444 | 111 |
| July | 457 | 114 |
| August | 507 | 127 |
| September | 436 | 109 |
| October | 426 | 106 |
| November | 381 | 95 |
| December | 351 | 88 |
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.