How much will solar panels produce in Katowice?

A 6 kWp system facing south at 35° tilt in Katowice produces about 6,518 kWh a year. In a weak year that is 5,430 kWh, in a good one 7,607 kWh — 1,086 kWh per kWp.

That’s about 261% of a typical home’s yearly use (2,500 kWh).

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Based on 2014–2023 satellite weather data

Production by month

02505007501,000JanJanuary: 6 kWp 213 kWh, range 145–281FebFebruary: 6 kWp 334 kWh, range 251–417MarMarch: 6 kWp 533 kWh, range 420–647AprApril: 6 kWp 650 kWh, range 472–829MayMay: 6 kWp 722 kWh, range 577–867JunJune: 6 kWp 819 kWh, range 645–993JulJuly: 6 kWp 831 kWh, range 688–974AugAugust: 6 kWp 801 kWh, range 646–956SepSeptember: 6 kWp 632 kWh, range 486–778OctOctober: 6 kWp 483 kWh, range 342–623NovNovember: 6 kWp 248 kWh, range 187–309DecDecember: 6 kWp 170 kWh, range 118–223

kWh per month

A typical day in July

The sunniest month in Katowice. Output peaks around 11:00 solar time, at about 3.3 kWh in the best hour.

0:006:0012:0018:0023:00 3.3 0

Month by month

Month Weak year, kWh Typical year, kWh Good year, kWh
January 145 213 281
February 251 334 417
March 420 533 647
April 472 650 829
May 577 722 867
June 645 819 993
July 688 831 974
August 646 801 956
September 486 632 778
October 342 483 623
November 187 248 309
December 118 170 223
Year 5,430 6,518 7,607

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 Katowice?

From November to February the system produces about 965 kWh, which is 15% of the year. The weakest month (December) gives roughly 170 kWh.

Is an east-west roof worth it in Katowice?

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 Katowice

Ground mount or roof in Katowice?

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 Katowice

Your roof is not an average roof

Set your own tilt, direction, shading and inverter limit and get a range for your address.

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