How much will solar panels produce in Wrocław?

A 6 kWp system facing south at 35° tilt in Wrocław produces about 6,765 kWh a year. In a weak year that is 5,605 kWh, in a good one 7,924 kWh — 1,127 kWh per kWp.

That’s about 271% of a typical home’s yearly use (2,500 kWh).

Calculate for my roof

Based on 2014–2023 satellite weather data

Production by month

02505007501,000JanJanuary: 6 kWp 189 kWh, range 138–240FebFebruary: 6 kWp 358 kWh, range 240–477MarMarch: 6 kWp 551 kWh, range 409–692AprApril: 6 kWp 669 kWh, range 500–837MayMay: 6 kWp 790 kWh, range 622–958JunJune: 6 kWp 834 kWh, range 677–991JulJuly: 6 kWp 842 kWh, range 698–987AugAugust: 6 kWp 809 kWh, range 650–967SepSeptember: 6 kWp 663 kWh, range 524–802OctOctober: 6 kWp 454 kWh, range 320–588NovNovember: 6 kWp 240 kWh, range 191–289DecDecember: 6 kWp 168 kWh, range 108–227

kWh per month

A typical day in July

The sunniest month in Wrocław. Output peaks around 11:00 solar time, at about 3.4 kWh in the best hour.

0:006:0012:0018:0023:00 3.4 0

Month by month

Month Weak year, kWh Typical year, kWh Good year, kWh
January 138 189 240
February 240 358 477
March 409 551 692
April 500 669 837
May 622 790 958
June 677 834 991
July 698 842 987
August 650 809 967
September 524 663 802
October 320 454 588
November 191 240 289
December 108 168 227
Year 5,605 6,765 7,924

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 Wrocław?

From November to February the system produces about 955 kWh, which is 15% of the year. The weakest month (December) gives roughly 168 kWh.

Is an east-west roof worth it in Wrocław?

An east-west system typically produces 10–25% less per kWp than one facing south, but spreads production more evenly through the day. The exact difference depends on tilt and shading.

Compare an east-west roof for Wrocław

Ground mount or roof in Wrocław?

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 Wrocław

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