Solar energy in Wollongong, Australia
Average irradiation 4.58 kWh/m²/day · ~1337 kWh per kWp per year
Monthly solar irradiation & temperature in Wollongong (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 6.39 | 21.9 | 155 |
| Feb | 5.37 | 20.6 | 131 |
| Mar | 4.63 | 18.8 | 113 |
| Apr | 3.76 | 16.0 | 91 |
| May | 3.01 | 12.7 | 73 |
| Jun | 2.35 | 10.3 | 57 |
| Jul | 2.74 | 9.4 | 67 |
| Aug | 3.63 | 10.2 | 88 |
| Sep | 4.83 | 13.1 | 117 |
| Oct | 5.66 | 15.8 | 138 |
| Nov | 6.13 | 18.3 | 149 |
| Dec | 6.49 | 19.9 | 158 |
Solar potential of Wollongong explained
Wollongong receives an average of 4.58 kilowatt-hours of solar energy per square metre per day, measured over four decades of satellite observation. In practical terms, every kilowatt-peak of installed PV capacity yields about 1337 kWh of electricity per year here, assuming a well-oriented system with a typical 80% performance ratio. This places Wollongong among the stronger solar locations globally — comparable to southern Spain or California.
Frequently asked questions
Is solar worth it in Wollongong?
With 4.58 kWh/m²/day of average irradiation, a 1 kWp system in Wollongong produces roughly 1337 kWh per year. That is an excellent solar resource — payback periods are typically among the shortest worldwide.
How much electricity would a 5 kW system produce in Wollongong?
Approximately 7,000 kWh per year — enough to cover a large share of a typical household's consumption.
What data is this based on?
Long-term satellite observations from NASA POWER (1981–present) and the PVGIS SARAH3 database, assuming a performance ratio of 80%.
Compare with nearby cities
Sydney (4.7) · Melbourne (4.2) · Perth (5.4) · Auckland (4) · Brisbane (5.4) · Adelaide (4.7) · all cities →