How much will solar panels produce in Tauranga?

A 5 kWp system facing north at 35° tilt in Tauranga produces about 7,329 kWh a year. In a weak year that is 6,107 kWh, in a good one 8,551 kWh — 1,466 kWh per kWp.

That’s about 105% of a typical home’s yearly use (7,000 kWh).

Calculate for my roof

Based on 2014–2023 satellite weather data

Production by month

02505007501,000JanJanuary: 5 kWp 816 kWh, range 644–988FebFebruary: 5 kWp 658 kWh, range 496–820MarMarch: 5 kWp 696 kWh, range 572–819AprApril: 5 kWp 554 kWh, range 451–657MayMay: 5 kWp 507 kWh, range 419–596JunJune: 5 kWp 411 kWh, range 326–496JulJuly: 5 kWp 480 kWh, range 392–569AugAugust: 5 kWp 543 kWh, range 448–638SepSeptember: 5 kWp 602 kWh, range 482–722OctOctober: 5 kWp 686 kWh, range 561–811NovNovember: 5 kWp 711 kWh, range 591–831DecDecember: 5 kWp 766 kWh, range 622–910

kWh per month

A typical day in January

The sunniest month in Tauranga. Output peaks around 12:00 solar time, at about 3.2 kWh in the best hour.

0:006:0012:0018:0023:00 3.2 0

Month by month

Month Weak year, kWh Typical year, kWh Good year, kWh
January 644 816 988
February 496 658 820
March 572 696 819
April 451 554 657
May 419 507 596
June 326 411 496
July 392 480 569
August 448 543 638
September 482 602 722
October 561 686 811
November 591 711 831
December 622 766 910
Year 6,107 7,329 8,551

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 Tauranga?

From May to August the system produces about 1,942 kWh, which is 26% of the year. The weakest month (June) gives roughly 411 kWh.

Is an east-west roof worth it in Tauranga?

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 Tauranga

Ground mount or roof in Tauranga?

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 Tauranga

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