How much will solar panels produce in Mackay?

A 6.6 kWp system facing north at 35° tilt in Mackay produces about 10,672 kWh a year. In a weak year that is 8,947 kWh, in a good one 12,396 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 790 kWh, range 632–949FebFebruary: 6.6 kWp 774 kWh, range 629–920MarMarch: 6.6 kWp 888 kWh, range 697–1,079AprApril: 6.6 kWp 878 kWh, range 689–1,066MayMay: 6.6 kWp 911 kWh, range 725–1,097JunJune: 6.6 kWp 824 kWh, range 672–975JulJuly: 6.6 kWp 909 kWh, range 743–1,075AugAugust: 6.6 kWp 1,004 kWh, range 831–1,176SepSeptember: 6.6 kWp 1,003 kWh, range 816–1,190OctOctober: 6.6 kWp 1,005 kWh, range 821–1,189NovNovember: 6.6 kWp 883 kWh, range 716–1,049DecDecember: 6.6 kWp 835 kWh, range 669–1,000

kWh per month

A typical day in October

The sunniest month in Mackay. Output peaks around 11:00 solar time, at about 3.7 kWh in the best hour.

0:006:0012:0018:0023:00 3.7 0

Month by month

Month Weak year, kWh Typical year, kWh Good year, kWh
January 632 790 949
February 629 774 920
March 697 888 1,079
April 689 878 1,066
May 725 911 1,097
June 672 824 975
July 743 909 1,075
August 831 1,004 1,176
September 816 1,003 1,190
October 821 1,005 1,189
November 716 883 1,049
December 669 835 1,000
Year 8,947 10,672 12,396

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 Mackay?

From May to August the system produces about 3,647 kWh, which is 34% of the year. The weakest month (February) gives roughly 774 kWh.

Is an east-west roof worth it in Mackay?

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 Mackay

Ground mount or roof in Mackay?

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 Mackay

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