How much electricity do solar panels make in Perth, Australia?
≈ 7,053 kWh a year
In Perth, Australia, ten 400 W mono PERC solar panels (4 kWp) on a roof facing the equator at the best yearly tilt (25°) make about 7,053 kWh of electricity a year — 1,763 kWh for every installed kilowatt.
1,763 kWh/kWpspecific yield per year
25°best yearly panel tilt
1,994 kWh/m²yearly sunlight on level ground
Decemberbest month (June lowest)
Solar energy month by month in Perth
| Month | 4 kWp system (kWh) | per kWp (kWh) |
|---|---|---|
| January | 753 | 188 |
| February | 651 | 163 |
| March | 662 | 166 |
| April | 528 | 132 |
| May | 465 | 116 |
| June | 390 | 97 |
| July | 417 | 104 |
| August | 487 | 122 |
| September | 559 | 140 |
| October | 672 | 168 |
| November | 709 | 177 |
| December | 760 | 190 |
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.