How much will solar panels produce in Toulouse?

A 6 kWp system facing south at 35° tilt in Toulouse produces about 8,157 kWh a year. In a weak year that is 6,835 kWh, in a good one 9,479 kWh — 1,360 kWh per kWp.

That’s about 174% 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 385 kWh, range 295–475FebFebruary: 6 kWp 511 kWh, range 389–634MarMarch: 6 kWp 687 kWh, range 551–823AprApril: 6 kWp 763 kWh, range 620–907MayMay: 6 kWp 814 kWh, range 670–959JunJune: 6 kWp 818 kWh, range 677–959JulJuly: 6 kWp 906 kWh, range 731–1,081AugAugust: 6 kWp 906 kWh, range 755–1,057SepSeptember: 6 kWp 801 kWh, range 646–955OctOctober: 6 kWp 649 kWh, range 520–778NovNovember: 6 kWp 452 kWh, range 354–551DecDecember: 6 kWp 364 kWh, range 247–481

kWh per month

A typical day in July

The sunniest month in Toulouse. Output peaks around 11:00 solar time, at about 3.6 kWh in the best hour.

0:006:0012:0018:0023:00 3.6 0

Month by month

Month Weak year, kWh Typical year, kWh Good year, kWh
January 295 385 475
February 389 511 634
March 551 687 823
April 620 763 907
May 670 814 959
June 677 818 959
July 731 906 1,081
August 755 906 1,057
September 646 801 955
October 520 649 778
November 354 452 551
December 247 364 481
Year 6,835 8,157 9,479

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 Toulouse?

From November to February the system produces about 1,713 kWh, which is 21% of the year. The weakest month (December) gives roughly 364 kWh.

Is an east-west roof worth it in Toulouse?

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 Toulouse

Ground mount or roof in Toulouse?

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 Toulouse

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