How much will solar panels produce in Geelong?

A 6.6 kWp system facing north at 35° tilt in Geelong produces about 9,718 kWh a year. In a weak year that is 8,120 kWh, in a good one 11,317 kWh — 1,473 kWh per kWp.

That’s about 177% of a typical home’s yearly use (5,500 kWh).

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Based on 2014–2023 satellite weather data

Production by month

05001,0001,500JanJanuary: 6.6 kWp 1,052 kWh, range 866–1,237FebFebruary: 6.6 kWp 933 kWh, range 770–1,097MarMarch: 6.6 kWp 896 kWh, range 729–1,063AprApril: 6.6 kWp 709 kWh, range 571–846MayMay: 6.6 kWp 613 kWh, range 505–722JunJune: 6.6 kWp 521 kWh, range 429–613JulJuly: 6.6 kWp 586 kWh, range 473–698AugAugust: 6.6 kWp 696 kWh, range 571–821SepSeptember: 6.6 kWp 836 kWh, range 681–991OctOctober: 6.6 kWp 959 kWh, range 762–1,155NovNovember: 6.6 kWp 935 kWh, range 763–1,107DecDecember: 6.6 kWp 1,021 kWh, range 833–1,210

kWh per month

A typical day in January

The sunniest month in Geelong. Output peaks around 12:00 solar time, at about 4.3 kWh in the best hour.

0:006:0012:0018:0023:00 4.3 0

Month by month

Month Weak year, kWh Typical year, kWh Good year, kWh
January 866 1,052 1,237
February 770 933 1,097
March 729 896 1,063
April 571 709 846
May 505 613 722
June 429 521 613
July 473 586 698
August 571 696 821
September 681 836 991
October 762 959 1,155
November 763 935 1,107
December 833 1,021 1,210
Year 8,120 9,718 11,317

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 Geelong?

From May to August the system produces about 2,416 kWh, which is 25% of the year. The weakest month (June) gives roughly 521 kWh.

Is an east-west roof worth it in Geelong?

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 Geelong

Ground mount or roof in Geelong?

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 Geelong

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