How much will solar panels produce in Tournai?

A 5 kWp system facing south at 35° tilt in Tournai produces about 5,459 kWh a year. In a weak year that is 4,539 kWh, in a good one 6,380 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 179 kWh, range 134–224FebFebruary: 5 kWp 302 kWh, range 209–396MarMarch: 5 kWp 483 kWh, range 348–618AprApril: 5 kWp 632 kWh, range 502–762MayMay: 5 kWp 670 kWh, range 539–801JunJune: 5 kWp 689 kWh, range 553–824JulJuly: 5 kWp 654 kWh, range 510–797AugAugust: 5 kWp 631 kWh, range 516–747SepSeptember: 5 kWp 542 kWh, range 445–638OctOctober: 5 kWp 348 kWh, range 272–423NovNovember: 5 kWp 237 kWh, range 181–292DecDecember: 5 kWp 146 kWh, range 87–204

kWh per month

A typical day in June

The sunniest month in Tournai. 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 134 179 224
February 209 302 396
March 348 483 618
April 502 632 762
May 539 670 801
June 553 689 824
July 510 654 797
August 516 631 747
September 445 542 638
October 272 348 423
November 181 237 292
December 87 146 204
Year 4,539 5,459 6,380

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 Tournai?

From November to February the system produces about 864 kWh, which is 16% of the year. The weakest month (December) gives roughly 146 kWh.

Is an east-west roof worth it in Tournai?

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 Tournai

Ground mount or roof in Tournai?

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 Tournai

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