How much will solar panels produce in Gdańsk?

A 6 kWp system facing south at 35° tilt in Gdańsk produces about 6,563 kWh a year. In a weak year that is 5,459 kWh, in a good one 7,666 kWh — 1,094 kWh per kWp.

That’s about 263% of a typical home’s yearly use (2,500 kWh).

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Based on 2014–2023 satellite weather data

Production by month

05001,0001,500JanJanuary: 6 kWp 147 kWh, range 110–183FebFebruary: 6 kWp 303 kWh, range 205–402MarMarch: 6 kWp 538 kWh, range 404–672AprApril: 6 kWp 787 kWh, range 623–952MayMay: 6 kWp 832 kWh, range 648–1,016JunJune: 6 kWp 871 kWh, range 702–1,039JulJuly: 6 kWp 831 kWh, range 678–983AugAugust: 6 kWp 819 kWh, range 660–978SepSeptember: 6 kWp 634 kWh, range 499–768OctOctober: 6 kWp 398 kWh, range 287–510NovNovember: 6 kWp 168 kWh, range 133–204DecDecember: 6 kWp 118 kWh, range 84–152

kWh per month

A typical day in June

The sunniest month in Gdańsk. Output peaks around 11:00 solar time, at about 3.5 kWh in the best hour.

0:006:0012:0018:0023:00 3.5 0

Month by month

Month Weak year, kWh Typical year, kWh Good year, kWh
January 110 147 183
February 205 303 402
March 404 538 672
April 623 787 952
May 648 832 1,016
June 702 871 1,039
July 678 831 983
August 660 819 978
September 499 634 768
October 287 398 510
November 133 168 204
December 84 118 152
Year 5,459 6,563 7,666

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 Gdańsk?

From November to February the system produces about 736 kWh, which is 11% of the year. The weakest month (December) gives roughly 118 kWh.

Is an east-west roof worth it in Gdańsk?

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 Gdańsk

Ground mount or roof in Gdańsk?

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 Gdańsk

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