How much will solar panels produce in Białystok?

A 6 kWp system facing south at 35° tilt in Białystok produces about 6,304 kWh a year. In a weak year that is 5,190 kWh, in a good one 7,417 kWh — 1,051 kWh per kWp.

That’s about 252% of a typical home’s yearly use (2,500 kWh).

Calculate for my roof

Based on 2014–2023 satellite weather data

Production by month

05001,0001,500JanJanuary: 6 kWp 156 kWh, range 117–194FebFebruary: 6 kWp 278 kWh, range 186–370MarMarch: 6 kWp 527 kWh, range 393–662AprApril: 6 kWp 657 kWh, range 503–811MayMay: 6 kWp 818 kWh, range 643–994JunJune: 6 kWp 871 kWh, range 700–1,043JulJuly: 6 kWp 841 kWh, range 687–995AugAugust: 6 kWp 812 kWh, range 653–971SepSeptember: 6 kWp 646 kWh, range 501–791OctOctober: 6 kWp 410 kWh, range 253–567NovNovember: 6 kWp 128 kWh, range 100–156DecDecember: 6 kWp 100 kWh, range 71–129

kWh per month

A typical day in June

The sunniest month in Białystok. 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 117 156 194
February 186 278 370
March 393 527 662
April 503 657 811
May 643 818 994
June 700 871 1,043
July 687 841 995
August 653 812 971
September 501 646 791
October 253 410 567
November 100 128 156
December 71 100 129
Year 5,190 6,304 7,417

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 Białystok?

From November to February the system produces about 662 kWh, which is 11% of the year. The weakest month (December) gives roughly 100 kWh.

Is an east-west roof worth it in Białystok?

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 Białystok

Ground mount or roof in Białystok?

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 Białystok

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