How much will solar panels produce in Düsseldorf?

A 8 kWp system facing south at 35° tilt in Düsseldorf produces about 8,517 kWh a year. In a weak year that is 7,016 kWh, in a good one 10,019 kWh — 1,065 kWh per kWp.

That’s about 243% of a typical home’s yearly use (3,500 kWh).

Calculate for my roof

Based on 2014–2023 satellite weather data

Production by month

05001,0001,500JanJanuary: 8 kWp 233 kWh, range 139–327FebFebruary: 8 kWp 440 kWh, range 306–574MarMarch: 8 kWp 737 kWh, range 543–931AprApril: 8 kWp 924 kWh, range 736–1,111MayMay: 8 kWp 1,068 kWh, range 834–1,302JunJune: 8 kWp 1,049 kWh, range 829–1,268JulJuly: 8 kWp 1,018 kWh, range 828–1,207AugAugust: 8 kWp 1,017 kWh, range 816–1,219SepSeptember: 8 kWp 815 kWh, range 652–978OctOctober: 8 kWp 542 kWh, range 413–672NovNovember: 8 kWp 317 kWh, range 229–405DecDecember: 8 kWp 193 kWh, range 94–292

kWh per month

A typical day in May

The sunniest month in Düsseldorf. Output peaks around 11:00 solar time, at about 4.3 kWh in the best hour.

0:006:0012:0018:0023:00 4.3 0

Month by month

Month Weak year, kWh Typical year, kWh Good year, kWh
January 139 233 327
February 306 440 574
March 543 737 931
April 736 924 1,111
May 834 1,068 1,302
June 829 1,049 1,268
July 828 1,018 1,207
August 816 1,017 1,219
September 652 815 978
October 413 542 672
November 229 317 405
December 94 193 292
Year 7,016 8,517 10,019

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 Düsseldorf?

From November to February the system produces about 1,183 kWh, which is 14% of the year. The weakest month (December) gives roughly 193 kWh.

Is an east-west roof worth it in Düsseldorf?

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 Düsseldorf

Ground mount or roof in Düsseldorf?

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 Düsseldorf

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