How much will solar panels produce in Wollongong?

A 6.6 kWp system facing north at 35° tilt in Wollongong produces about 10,670 kWh a year. In a weak year that is 8,890 kWh, in a good one 12,450 kWh — 1,617 kWh per kWp.

That’s about 194% of a typical home’s yearly use (5,500 kWh).

Calculate for my roof

Based on 2014–2023 satellite weather data

Production by month

05001,0001,500JanJanuary: 6.6 kWp 952 kWh, range 789–1,114FebFebruary: 6.6 kWp 886 kWh, range 717–1,055MarMarch: 6.6 kWp 868 kWh, range 682–1,055AprApril: 6.6 kWp 812 kWh, range 622–1,002MayMay: 6.6 kWp 830 kWh, range 684–977JunJune: 6.6 kWp 654 kWh, range 531–776JulJuly: 6.6 kWp 807 kWh, range 635–979AugAugust: 6.6 kWp 902 kWh, range 741–1,063SepSeptember: 6.6 kWp 985 kWh, range 792–1,178OctOctober: 6.6 kWp 1,015 kWh, range 786–1,245NovNovember: 6.6 kWp 972 kWh, range 758–1,186DecDecember: 6.6 kWp 956 kWh, range 788–1,123

kWh per month

A typical day in October

The sunniest month in Wollongong. Output peaks around 11:00 solar time, at about 4.2 kWh in the best hour.

0:006:0012:0018:0023:00 4.2 0

Month by month

Month Weak year, kWh Typical year, kWh Good year, kWh
January 789 952 1,114
February 717 886 1,055
March 682 868 1,055
April 622 812 1,002
May 684 830 977
June 531 654 776
July 635 807 979
August 741 902 1,063
September 792 985 1,178
October 786 1,015 1,245
November 758 972 1,186
December 788 956 1,123
Year 8,890 10,670 12,450

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 Wollongong?

From May to August the system produces about 3,193 kWh, which is 30% of the year. The weakest month (June) gives roughly 654 kWh.

Is an east-west roof worth it in Wollongong?

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.

Compare an east-west roof for Wollongong

Ground mount or roof in Wollongong?

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.

Check a ground-mounted system in Wollongong

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 roof

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Climate data: Photovoltaic Geographical Information System (PVGIS) — European Commission, Joint Research Centre