How much will solar panels produce in Brisbane?
A 6.6 kWp system facing north at 35° tilt in Brisbane produces about 10,738 kWh a year. In a weak year that is 8,969 kWh, in a good one 12,507 kWh — 1,627 kWh per kWp.
That’s about 195% of a typical home’s yearly use (5,500 kWh).
Based on 2014–2023 satellite weather data
Production by month
kWh per month
A typical day in October
The sunniest month in Brisbane. Output peaks around 11:00 solar time, at about 3.9 kWh in the best hour.
Month by month
| Month | Weak year, kWh | Typical year, kWh | Good year, kWh |
|---|---|---|---|
| January | 698 | 874 | 1,049 |
| February | 652 | 811 | 970 |
| March | 724 | 892 | 1,060 |
| April | 743 | 899 | 1,055 |
| May | 683 | 861 | 1,038 |
| June | 634 | 780 | 925 |
| July | 671 | 840 | 1,010 |
| August | 751 | 946 | 1,142 |
| September | 769 | 960 | 1,152 |
| October | 764 | 980 | 1,197 |
| November | 745 | 930 | 1,115 |
| December | 717 | 871 | 1,026 |
| Year | 8,969 | 10,738 | 12,507 |
The months don’t add up exactly to the yearly figure, because each one is the typical value across many years.
Common questions
How much do solar panels produce in winter in Brisbane?
From May to August the system produces about 3,427 kWh, which is 32% of the year. The weakest month (June) gives roughly 780 kWh.
Is an east-west roof worth it in Brisbane?
An east-west system typically produces 10–25% less per kWp than one facing north, but spreads production more evenly through the day. The exact difference depends on tilt and shading.
Ground mount or roof in Brisbane?
A ground mount can be tilted and aimed freely, which can add some yield, but it costs more and needs space. Compare both for your own plot.
Your roof is not an average roof
Set your own tilt, direction, shading and inverter limit and get a range for your address.
Calculate for my roofClimate data: Photovoltaic Geographical Information System (PVGIS) — European Commission, Joint Research Centre