How much will solar panels produce in Dornbirn?

A 6 kWp system facing south at 35° tilt in Dornbirn produces about 6,242 kWh a year. In a weak year that is 5,174 kWh, in a good one 7,310 kWh — 1,040 kWh per kWp.

That’s about 156% of a typical home’s yearly use (4,000 kWh).

Calculate for my roof

Based on 2014–2023 satellite weather data

Production by month

02505007501,000JanJanuary: 6 kWp 243 kWh, range 177–309FebFebruary: 6 kWp 383 kWh, range 290–476MarMarch: 6 kWp 576 kWh, range 418–735AprApril: 6 kWp 649 kWh, range 486–811MayMay: 6 kWp 650 kWh, range 521–778JunJune: 6 kWp 773 kWh, range 596–950JulJuly: 6 kWp 763 kWh, range 602–923AugAugust: 6 kWp 744 kWh, range 603–885SepSeptember: 6 kWp 618 kWh, range 465–772OctOctober: 6 kWp 464 kWh, range 360–568NovNovember: 6 kWp 253 kWh, range 165–340DecDecember: 6 kWp 199 kWh, range 94–304

kWh per month

A typical day in June

The sunniest month in Dornbirn. Output peaks around 11:00 solar time, at about 3.1 kWh in the best hour.

0:006:0012:0018:0023:00 3.1 0

Month by month

Month Weak year, kWh Typical year, kWh Good year, kWh
January 177 243 309
February 290 383 476
March 418 576 735
April 486 649 811
May 521 650 778
June 596 773 950
July 602 763 923
August 603 744 885
September 465 618 772
October 360 464 568
November 165 253 340
December 94 199 304
Year 5,174 6,242 7,310

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 Dornbirn?

From November to February the system produces about 1,078 kWh, which is 17% of the year. The weakest month (December) gives roughly 199 kWh.

Is an east-west roof worth it in Dornbirn?

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 Dornbirn

Ground mount or roof in Dornbirn?

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 Dornbirn

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