How much will solar panels produce in Bremen?

A 8 kWp system facing south at 35° tilt in Bremen produces about 8,177 kWh a year. In a weak year that is 6,732 kWh, in a good one 9,623 kWh — 1,022 kWh per kWp.

That’s about 234% 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 207 kWh, range 170–244FebFebruary: 8 kWp 426 kWh, range 316–536MarMarch: 8 kWp 696 kWh, range 527–865AprApril: 8 kWp 1,001 kWh, range 804–1,198MayMay: 8 kWp 1,040 kWh, range 835–1,245JunJune: 8 kWp 1,025 kWh, range 830–1,220JulJuly: 8 kWp 1,006 kWh, range 821–1,192AugAugust: 8 kWp 998 kWh, range 810–1,185SepSeptember: 8 kWp 788 kWh, range 630–945OctOctober: 8 kWp 492 kWh, range 342–642NovNovember: 8 kWp 294 kWh, range 228–359DecDecember: 8 kWp 168 kWh, range 107–228

kWh per month

A typical day in May

The sunniest month in Bremen. Output peaks around 12:00 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 170 207 244
February 316 426 536
March 527 696 865
April 804 1,001 1,198
May 835 1,040 1,245
June 830 1,025 1,220
July 821 1,006 1,192
August 810 998 1,185
September 630 788 945
October 342 492 642
November 228 294 359
December 107 168 228
Year 6,732 8,177 9,623

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 Bremen?

From November to February the system produces about 1,094 kWh, which is 13% of the year. The weakest month (December) gives roughly 168 kWh.

Is an east-west roof worth it in Bremen?

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 Bremen

Ground mount or roof in Bremen?

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 Bremen

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