How much will solar panels produce in Arlon?

A 5 kWp system facing south at 35° tilt in Arlon produces about 5,458 kWh a year. In a weak year that is 4,528 kWh, in a good one 6,387 kWh — 1,092 kWh per kWp.

That’s about 156% of a typical home’s yearly use (3,500 kWh).

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Based on 2014–2023 satellite weather data

Production by month

02505007501,000JanJanuary: 5 kWp 142 kWh, range 112–172FebFebruary: 5 kWp 270 kWh, range 181–359MarMarch: 5 kWp 506 kWh, range 375–637AprApril: 5 kWp 618 kWh, range 482–754MayMay: 5 kWp 665 kWh, range 525–806JunJune: 5 kWp 713 kWh, range 583–843JulJuly: 5 kWp 699 kWh, range 553–845AugAugust: 5 kWp 671 kWh, range 541–801SepSeptember: 5 kWp 558 kWh, range 448–668OctOctober: 5 kWp 324 kWh, range 245–402NovNovember: 5 kWp 186 kWh, range 137–235DecDecember: 5 kWp 130 kWh, range 85–176

kWh per month

A typical day in June

The sunniest month in Arlon. Output peaks around 11:00 solar time, at about 2.8 kWh in the best hour.

0:006:0012:0018:0023:00 2.8 0

Month by month

Month Weak year, kWh Typical year, kWh Good year, kWh
January 112 142 172
February 181 270 359
March 375 506 637
April 482 618 754
May 525 665 806
June 583 713 843
July 553 699 845
August 541 671 801
September 448 558 668
October 245 324 402
November 137 186 235
December 85 130 176
Year 4,528 5,458 6,387

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 Arlon?

From November to February the system produces about 728 kWh, which is 13% of the year. The weakest month (December) gives roughly 130 kWh.

Is an east-west roof worth it in Arlon?

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 Arlon

Ground mount or roof in Arlon?

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 Arlon

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