How much will solar panels produce in Luzern?

A 8 kWp system facing south at 35° tilt in Luzern produces about 8,911 kWh a year. In a weak year that is 7,418 kWh, in a good one 10,403 kWh — 1,114 kWh per kWp.

That’s about 198% of a typical home’s yearly use (4,500 kWh).

Calculate for my roof

Based on 2014–2023 satellite weather data

Production by month

05001,0001,500JanJanuary: 8 kWp 373 kWh, range 256–489FebFebruary: 8 kWp 533 kWh, range 398–668MarMarch: 8 kWp 805 kWh, range 608–1,002AprApril: 8 kWp 942 kWh, range 723–1,161MayMay: 8 kWp 921 kWh, range 747–1,094JunJune: 8 kWp 1,089 kWh, range 868–1,311JulJuly: 8 kWp 1,090 kWh, range 863–1,316AugAugust: 8 kWp 1,021 kWh, range 845–1,197SepSeptember: 8 kWp 856 kWh, range 676–1,035OctOctober: 8 kWp 617 kWh, range 469–764NovNovember: 8 kWp 316 kWh, range 223–409DecDecember: 8 kWp 314 kWh, range 223–405

kWh per month

A typical day in July

The sunniest month in Luzern. Output peaks around 12:00 solar time, at about 4.5 kWh in the best hour.

0:006:0012:0018:0023:00 4.5 0

Month by month

Month Weak year, kWh Typical year, kWh Good year, kWh
January 256 373 489
February 398 533 668
March 608 805 1,002
April 723 942 1,161
May 747 921 1,094
June 868 1,089 1,311
July 863 1,090 1,316
August 845 1,021 1,197
September 676 856 1,035
October 469 617 764
November 223 316 409
December 223 314 405
Year 7,418 8,911 10,403

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 Luzern?

From November to February the system produces about 1,535 kWh, which is 17% of the year. The weakest month (December) gives roughly 314 kWh.

Is an east-west roof worth it in Luzern?

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 Luzern

Ground mount or roof in Luzern?

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 Luzern

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

All cities in Switzerland

Climate data: Photovoltaic Geographical Information System (PVGIS) — European Commission, Joint Research Centre