How much will solar panels produce in Melbourne?

A 6.6 kWp system facing north at 35° tilt in Melbourne produces about 9,803 kWh a year. In a weak year that is 8,183 kWh, in a good one 11,423 kWh — 1,485 kWh per kWp.

That’s about 178% 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 1,054 kWh, range 867–1,240FebFebruary: 6.6 kWp 948 kWh, range 787–1,108MarMarch: 6.6 kWp 918 kWh, range 748–1,087AprApril: 6.6 kWp 723 kWh, range 586–861MayMay: 6.6 kWp 609 kWh, range 503–715JunJune: 6.6 kWp 520 kWh, range 425–614JulJuly: 6.6 kWp 572 kWh, range 451–693AugAugust: 6.6 kWp 703 kWh, range 579–827SepSeptember: 6.6 kWp 846 kWh, range 677–1,016OctOctober: 6.6 kWp 964 kWh, range 767–1,162NovNovember: 6.6 kWp 946 kWh, range 778–1,113DecDecember: 6.6 kWp 1,040 kWh, range 861–1,220

kWh per month

A typical day in January

The sunniest month in Melbourne. Output peaks around 12:00 solar time, at about 4.4 kWh in the best hour.

0:006:0012:0018:0023:00 4.4 0

Month by month

Month Weak year, kWh Typical year, kWh Good year, kWh
January 867 1,054 1,240
February 787 948 1,108
March 748 918 1,087
April 586 723 861
May 503 609 715
June 425 520 614
July 451 572 693
August 579 703 827
September 677 846 1,016
October 767 964 1,162
November 778 946 1,113
December 861 1,040 1,220
Year 8,183 9,803 11,423

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 Melbourne?

From May to August the system produces about 2,404 kWh, which is 24% of the year. The weakest month (June) gives roughly 520 kWh.

Is an east-west roof worth it in Melbourne?

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 Melbourne

Ground mount or roof in Melbourne?

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 Melbourne

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