How much will solar panels produce in Frankfurt am Main?

A 8 kWp system facing south at 35° tilt in Frankfurt am Main produces about 8,746 kWh a year. In a weak year that is 7,256 kWh, in a good one 10,237 kWh — 1,093 kWh per kWp.

That’s about 250% of a typical home’s yearly use (3,500 kWh).

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Based on 2014–2023 satellite weather data

Production by month

05001,0001,500JanJanuary: 8 kWp 252 kWh, range 178–327FebFebruary: 8 kWp 464 kWh, range 336–593MarMarch: 8 kWp 781 kWh, range 578–985AprApril: 8 kWp 987 kWh, range 796–1,177MayMay: 8 kWp 1,057 kWh, range 853–1,260JunJune: 8 kWp 1,131 kWh, range 907–1,355JulJuly: 8 kWp 1,126 kWh, range 919–1,334AugAugust: 8 kWp 1,070 kWh, range 860–1,280SepSeptember: 8 kWp 895 kWh, range 710–1,079OctOctober: 8 kWp 524 kWh, range 395–654NovNovember: 8 kWp 291 kWh, range 196–386DecDecember: 8 kWp 216 kWh, range 144–289

kWh per month

A typical day in June

The sunniest month in Frankfurt am Main. Output peaks around 12:00 solar time, at about 4.5 kWh in the best hour.

0:006:0012:0018:0023:00 4.5 0

Month by month

Month Weak year, kWh Typical year, kWh Good year, kWh
January 178 252 327
February 336 464 593
March 578 781 985
April 796 987 1,177
May 853 1,057 1,260
June 907 1,131 1,355
July 919 1,126 1,334
August 860 1,070 1,280
September 710 895 1,079
October 395 524 654
November 196 291 386
December 144 216 289
Year 7,256 8,746 10,237

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 Frankfurt am Main?

From November to February the system produces about 1,223 kWh, which is 14% of the year. The weakest month (December) gives roughly 216 kWh.

Is an east-west roof worth it in Frankfurt am Main?

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 Frankfurt am Main

Ground mount or roof in Frankfurt am Main?

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 Frankfurt am Main

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