How much will solar panels produce in Palermo?

A 6 kWp system facing south at 35° tilt in Palermo produces about 9,462 kWh a year. In a weak year that is 7,919 kWh, in a good one 11,004 kWh — 1,577 kWh per kWp.

That’s about 350% of a typical home’s yearly use (2,700 kWh).

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Based on 2014–2023 satellite weather data

Production by month

05001,0001,500JanJanuary: 6 kWp 553 kWh, range 445–661FebFebruary: 6 kWp 637 kWh, range 456–817MarMarch: 6 kWp 750 kWh, range 578–921AprApril: 6 kWp 873 kWh, range 729–1,017MayMay: 6 kWp 950 kWh, range 763–1,137JunJune: 6 kWp 966 kWh, range 805–1,128JulJuly: 6 kWp 1,049 kWh, range 879–1,218AugAugust: 6 kWp 1,038 kWh, range 867–1,210SepSeptember: 6 kWp 860 kWh, range 714–1,007OctOctober: 6 kWp 759 kWh, range 593–925NovNovember: 6 kWp 566 kWh, range 456–677DecDecember: 6 kWp 518 kWh, range 420–616

kWh per month

A typical day in July

The sunniest month in Palermo. Output peaks around 11:00 solar time, at about 4.2 kWh in the best hour.

0:006:0012:0018:0023:00 4.2 0

Month by month

Month Weak year, kWh Typical year, kWh Good year, kWh
January 445 553 661
February 456 637 817
March 578 750 921
April 729 873 1,017
May 763 950 1,137
June 805 966 1,128
July 879 1,049 1,218
August 867 1,038 1,210
September 714 860 1,007
October 593 759 925
November 456 566 677
December 420 518 616
Year 7,919 9,462 11,004

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 Palermo?

From November to February the system produces about 2,273 kWh, which is 24% of the year. The weakest month (December) gives roughly 518 kWh.

Is an east-west roof worth it in Palermo?

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 Palermo

Ground mount or roof in Palermo?

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 Palermo

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