How much will solar panels produce in Reims?

A 6 kWp system facing south at 35° tilt in Reims produces about 7,105 kWh a year. In a weak year that is 5,911 kWh, in a good one 8,299 kWh — 1,184 kWh per kWp.

That’s about 151% of a typical home’s yearly use (4,700 kWh).

Calculate for my roof

Based on 2014–2023 satellite weather data

Production by month

05001,0001,500JanJanuary: 6 kWp 240 kWh, range 173–306FebFebruary: 6 kWp 406 kWh, range 309–503MarMarch: 6 kWp 619 kWh, range 465–773AprApril: 6 kWp 805 kWh, range 640–969MayMay: 6 kWp 835 kWh, range 669–1,000JunJune: 6 kWp 887 kWh, range 712–1,062JulJuly: 6 kWp 839 kWh, range 648–1,030AugAugust: 6 kWp 834 kWh, range 681–987SepSeptember: 6 kWp 707 kWh, range 581–834OctOctober: 6 kWp 480 kWh, range 372–587NovNovember: 6 kWp 285 kWh, range 226–343DecDecember: 6 kWp 184 kWh, range 99–270

kWh per month

A typical day in June

The sunniest month in Reims. Output peaks around 11:00 solar time, at about 3.5 kWh in the best hour.

0:006:0012:0018:0023:00 3.5 0

Month by month

Month Weak year, kWh Typical year, kWh Good year, kWh
January 173 240 306
February 309 406 503
March 465 619 773
April 640 805 969
May 669 835 1,000
June 712 887 1,062
July 648 839 1,030
August 681 834 987
September 581 707 834
October 372 480 587
November 226 285 343
December 99 184 270
Year 5,911 7,105 8,299

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 Reims?

From November to February the system produces about 1,114 kWh, which is 16% of the year. The weakest month (December) gives roughly 184 kWh.

Is an east-west roof worth it in Reims?

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 Reims

Ground mount or roof in Reims?

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 Reims

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