How much will solar panels produce in Eupen?

A 5 kWp system facing south at 35° tilt in Eupen produces about 5,191 kWh a year. In a weak year that is 4,254 kWh, in a good one 6,128 kWh — 1,038 kWh per kWp.

That’s about 148% of a typical home’s yearly use (3,500 kWh).

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Based on 2014–2023 satellite weather data

Production by month

0200400600800JanJanuary: 5 kWp 151 kWh, range 97–205FebFebruary: 5 kWp 289 kWh, range 203–376MarMarch: 5 kWp 436 kWh, range 319–554AprApril: 5 kWp 567 kWh, range 450–683MayMay: 5 kWp 619 kWh, range 484–753JunJune: 5 kWp 632 kWh, range 496–769JulJuly: 5 kWp 624 kWh, range 492–757AugAugust: 5 kWp 610 kWh, range 487–732SepSeptember: 5 kWp 514 kWh, range 400–627OctOctober: 5 kWp 323 kWh, range 237–409NovNovember: 5 kWp 198 kWh, range 128–268DecDecember: 5 kWp 136 kWh, range 77–196

kWh per month

A typical day in June

The sunniest month in Eupen. Output peaks around 11:00 solar time, at about 2.6 kWh in the best hour.

0:006:0012:0018:0023:00 2.6 0

Month by month

Month Weak year, kWh Typical year, kWh Good year, kWh
January 97 151 205
February 203 289 376
March 319 436 554
April 450 567 683
May 484 619 753
June 496 632 769
July 492 624 757
August 487 610 732
September 400 514 627
October 237 323 409
November 128 198 268
December 77 136 196
Year 4,254 5,191 6,128

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 Eupen?

From November to February the system produces about 775 kWh, which is 15% of the year. The weakest month (December) gives roughly 136 kWh.

Is an east-west roof worth it in Eupen?

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 Eupen

Ground mount or roof in Eupen?

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 Eupen

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