How much will solar panels produce in Bydgoszcz?

A 6 kWp system facing south at 35° tilt in Bydgoszcz produces about 6,234 kWh a year. In a weak year that is 5,189 kWh, in a good one 7,279 kWh — 1,039 kWh per kWp.

That’s about 249% 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 146 kWh, range 113–179FebFebruary: 6 kWp 319 kWh, range 249–389MarMarch: 6 kWp 493 kWh, range 369–618AprApril: 6 kWp 715 kWh, range 547–883MayMay: 6 kWp 793 kWh, range 615–970JunJune: 6 kWp 832 kWh, range 672–993JulJuly: 6 kWp 803 kWh, range 660–946AugAugust: 6 kWp 769 kWh, range 616–921SepSeptember: 6 kWp 630 kWh, range 478–781OctOctober: 6 kWp 399 kWh, range 291–508NovNovember: 6 kWp 150 kWh, range 110–191DecDecember: 6 kWp 124 kWh, range 81–166

kWh per month

A typical day in June

The sunniest month in Bydgoszcz. Output peaks around 10:00 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 113 146 179
February 249 319 389
March 369 493 618
April 547 715 883
May 615 793 970
June 672 832 993
July 660 803 946
August 616 769 921
September 478 630 781
October 291 399 508
November 110 150 191
December 81 124 166
Year 5,189 6,234 7,279

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 Bydgoszcz?

From November to February the system produces about 738 kWh, which is 12% of the year. The weakest month (December) gives roughly 124 kWh.

Is an east-west roof worth it in Bydgoszcz?

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 Bydgoszcz

Ground mount or roof in Bydgoszcz?

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 Bydgoszcz

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