How much will solar panels produce in Sydney?

A 6.6 kWp system facing north at 35° tilt in Sydney produces about 10,680 kWh a year. In a weak year that is 8,906 kWh, in a good one 12,455 kWh — 1,618 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 934 kWh, range 775–1,093FebFebruary: 6.6 kWp 887 kWh, range 717–1,057MarMarch: 6.6 kWp 875 kWh, range 691–1,060AprApril: 6.6 kWp 840 kWh, range 664–1,016MayMay: 6.6 kWp 831 kWh, range 678–985JunJune: 6.6 kWp 659 kWh, range 529–789JulJuly: 6.6 kWp 807 kWh, range 635–979AugAugust: 6.6 kWp 923 kWh, range 756–1,090SepSeptember: 6.6 kWp 984 kWh, range 800–1,168OctOctober: 6.6 kWp 1,017 kWh, range 781–1,252NovNovember: 6.6 kWp 972 kWh, range 760–1,183DecDecember: 6.6 kWp 964 kWh, range 788–1,140

kWh per month

A typical day in October

The sunniest month in Sydney. 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 775 934 1,093
February 717 887 1,057
March 691 875 1,060
April 664 840 1,016
May 678 831 985
June 529 659 789
July 635 807 979
August 756 923 1,090
September 800 984 1,168
October 781 1,017 1,252
November 760 972 1,183
December 788 964 1,140
Year 8,906 10,680 12,455

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 Sydney?

From May to August the system produces about 3,221 kWh, which is 30% of the year. The weakest month (June) gives roughly 659 kWh.

Is an east-west roof worth it in Sydney?

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 Sydney

Ground mount or roof in Sydney?

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 Sydney

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

All cities in Australia

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