How much will solar panels produce in Poznań?

A 6 kWp system facing south at 35° tilt in Poznań produces about 6,476 kWh a year. In a weak year that is 5,370 kWh, in a good one 7,582 kWh — 1,079 kWh per kWp.

That’s about 259% 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 185 kWh, range 124–247FebFebruary: 6 kWp 323 kWh, range 246–400MarMarch: 6 kWp 527 kWh, range 380–674AprApril: 6 kWp 719 kWh, range 527–910MayMay: 6 kWp 820 kWh, range 645–994JunJune: 6 kWp 798 kWh, range 645–952JulJuly: 6 kWp 846 kWh, range 693–1,000AugAugust: 6 kWp 775 kWh, range 623–928SepSeptember: 6 kWp 649 kWh, range 502–795OctOctober: 6 kWp 415 kWh, range 293–537NovNovember: 6 kWp 200 kWh, range 150–251DecDecember: 6 kWp 124 kWh, range 73–175

kWh per month

A typical day in July

The sunniest month in Poznań. 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 124 185 247
February 246 323 400
March 380 527 674
April 527 719 910
May 645 820 994
June 645 798 952
July 693 846 1,000
August 623 775 928
September 502 649 795
October 293 415 537
November 150 200 251
December 73 124 175
Year 5,370 6,476 7,582

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 Poznań?

From November to February the system produces about 832 kWh, which is 13% of the year. The weakest month (December) gives roughly 124 kWh.

Is an east-west roof worth it in Poznań?

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 Poznań

Ground mount or roof in Poznań?

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 Poznań

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