How much will solar panels produce in Rockhampton?

A 6.6 kWp system facing north at 35° tilt in Rockhampton produces about 11,196 kWh a year. In a weak year that is 9,391 kWh, in a good one 13,001 kWh — 1,696 kWh per kWp.

That’s about 204% 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 885 kWh, range 728–1,042FebFebruary: 6.6 kWp 841 kWh, range 696–985MarMarch: 6.6 kWp 943 kWh, range 764–1,123AprApril: 6.6 kWp 943 kWh, range 776–1,111MayMay: 6.6 kWp 949 kWh, range 764–1,135JunJune: 6.6 kWp 855 kWh, range 705–1,005JulJuly: 6.6 kWp 928 kWh, range 769–1,087AugAugust: 6.6 kWp 1,029 kWh, range 859–1,199SepSeptember: 6.6 kWp 1,053 kWh, range 857–1,250OctOctober: 6.6 kWp 1,026 kWh, range 831–1,221NovNovember: 6.6 kWp 930 kWh, range 749–1,110DecDecember: 6.6 kWp 881 kWh, range 724–1,038

kWh per month

A typical day in September

The sunniest month in Rockhampton. Output peaks around 11:00 solar time, at about 4.0 kWh in the best hour.

0:006:0012:0018:0023:00 4.0 0

Month by month

Month Weak year, kWh Typical year, kWh Good year, kWh
January 728 885 1,042
February 696 841 985
March 764 943 1,123
April 776 943 1,111
May 764 949 1,135
June 705 855 1,005
July 769 928 1,087
August 859 1,029 1,199
September 857 1,053 1,250
October 831 1,026 1,221
November 749 930 1,110
December 724 881 1,038
Year 9,391 11,196 13,001

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 Rockhampton?

From May to August the system produces about 3,760 kWh, which is 33% of the year. The weakest month (February) gives roughly 841 kWh.

Is an east-west roof worth it in Rockhampton?

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 Rockhampton

Ground mount or roof in Rockhampton?

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 Rockhampton

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