How much will solar panels produce in Nijmegen?

A 4 kWp system facing south at 35° tilt in Nijmegen produces about 4,220 kWh a year. In a weak year that is 3,480 kWh, in a good one 4,961 kWh — 1,055 kWh per kWp.

That’s about 151% of a typical home’s yearly use (2,800 kWh).

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Based on 2014–2023 satellite weather data

Production by month

0200400600800JanJanuary: 4 kWp 121 kWh, range 85–158FebFebruary: 4 kWp 224 kWh, range 161–287MarMarch: 4 kWp 352 kWh, range 266–438AprApril: 4 kWp 471 kWh, range 378–563MayMay: 4 kWp 522 kWh, range 406–638JunJune: 4 kWp 541 kWh, range 441–641JulJuly: 4 kWp 510 kWh, range 409–612AugAugust: 4 kWp 513 kWh, range 416–609SepSeptember: 4 kWp 414 kWh, range 334–494OctOctober: 4 kWp 250 kWh, range 194–305NovNovember: 4 kWp 173 kWh, range 132–214DecDecember: 4 kWp 90 kWh, range 49–131

kWh per month

A typical day in June

The sunniest month in Nijmegen. Output peaks around 11:00 solar time, at about 2.2 kWh in the best hour.

0:006:0012:0018:0023:00 2.2 0

Month by month

Month Weak year, kWh Typical year, kWh Good year, kWh
January 85 121 158
February 161 224 287
March 266 352 438
April 378 471 563
May 406 522 638
June 441 541 641
July 409 510 612
August 416 513 609
September 334 414 494
October 194 250 305
November 132 173 214
December 49 90 131
Year 3,480 4,220 4,961

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 Nijmegen?

From November to February the system produces about 608 kWh, which is 15% of the year. The weakest month (December) gives roughly 90 kWh.

Is an east-west roof worth it in Nijmegen?

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 Nijmegen

Ground mount or roof in Nijmegen?

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 Nijmegen

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