How much will solar panels produce in Mechelen?

A 5 kWp system facing south at 35° tilt in Mechelen produces about 5,396 kWh a year. In a weak year that is 4,482 kWh, in a good one 6,309 kWh — 1,079 kWh per kWp.

That’s about 154% of a typical home’s yearly use (3,500 kWh).

Calculate for my roof

Based on 2014–2023 satellite weather data

Production by month

02505007501,000JanJanuary: 5 kWp 175 kWh, range 132–217FebFebruary: 5 kWp 280 kWh, range 200–360MarMarch: 5 kWp 461 kWh, range 343–580AprApril: 5 kWp 620 kWh, range 490–751MayMay: 5 kWp 685 kWh, range 542–828JunJune: 5 kWp 681 kWh, range 553–809JulJuly: 5 kWp 643 kWh, range 514–772AugAugust: 5 kWp 637 kWh, range 516–758SepSeptember: 5 kWp 551 kWh, range 452–649OctOctober: 5 kWp 330 kWh, range 255–405NovNovember: 5 kWp 231 kWh, range 180–283DecDecember: 5 kWp 138 kWh, range 80–196

kWh per month

A typical day in May

The sunniest month in Mechelen. Output peaks around 11:00 solar time, at about 2.7 kWh in the best hour.

0:006:0012:0018:0023:00 2.7 0

Month by month

Month Weak year, kWh Typical year, kWh Good year, kWh
January 132 175 217
February 200 280 360
March 343 461 580
April 490 620 751
May 542 685 828
June 553 681 809
July 514 643 772
August 516 637 758
September 452 551 649
October 255 330 405
November 180 231 283
December 80 138 196
Year 4,482 5,396 6,309

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 Mechelen?

From November to February the system produces about 823 kWh, which is 15% of the year. The weakest month (December) gives roughly 138 kWh.

Is an east-west roof worth it in Mechelen?

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 Mechelen

Ground mount or roof in Mechelen?

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 Mechelen

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