How much electricity do solar panels make in Sapporo, Japan?
≈ 4,608 kWh a year
In Sapporo, Japan, ten 400 W mono PERC solar panels (4 kWp) on a roof facing the equator at the best yearly tilt (30°) make about 4,608 kWh of electricity a year — 1,152 kWh for every installed kilowatt.
1,152 kWh/kWpspecific yield per year
30°best yearly panel tilt
1,205 kWh/m²yearly sunlight on level ground
Maybest month (December lowest)
Solar energy month by month in Sapporo
| Month | 4 kWp system (kWh) | per kWp (kWh) |
|---|---|---|
| January | 229 | 57 |
| February | 277 | 69 |
| March | 425 | 106 |
| April | 501 | 125 |
| May | 537 | 134 |
| June | 488 | 122 |
| July | 466 | 116 |
| August | 459 | 115 |
| September | 429 | 107 |
| October | 372 | 93 |
| November | 237 | 59 |
| December | 188 | 47 |
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.