How much will solar panels produce in Wien?

A 6 kWp system facing south at 35° tilt in Wien produces about 7,236 kWh a year. In a weak year that is 6,048 kWh, in a good one 8,424 kWh — 1,206 kWh per kWp.

That’s about 181% of a typical home’s yearly use (4,000 kWh).

Calculate for my roof

Based on 2014–2023 satellite weather data

Production by month

05001,0001,500JanJanuary: 6 kWp 265 kWh, range 206–324FebFebruary: 6 kWp 435 kWh, range 325–545MarMarch: 6 kWp 639 kWh, range 490–788AprApril: 6 kWp 738 kWh, range 569–907MayMay: 6 kWp 813 kWh, range 641–986JunJune: 6 kWp 894 kWh, range 696–1,093JulJuly: 6 kWp 905 kWh, range 756–1,055AugAugust: 6 kWp 842 kWh, range 687–997SepSeptember: 6 kWp 731 kWh, range 571–892OctOctober: 6 kWp 496 kWh, range 337–654NovNovember: 6 kWp 297 kWh, range 231–364DecDecember: 6 kWp 241 kWh, range 188–295

kWh per month

A typical day in July

The sunniest month in Wien. Output peaks around 11:00 solar time, at about 3.8 kWh in the best hour.

0:006:0012:0018:0023:00 3.8 0

Month by month

Month Weak year, kWh Typical year, kWh Good year, kWh
January 206 265 324
February 325 435 545
March 490 639 788
April 569 738 907
May 641 813 986
June 696 894 1,093
July 756 905 1,055
August 687 842 997
September 571 731 892
October 337 496 654
November 231 297 364
December 188 241 295
Year 6,048 7,236 8,424

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 Wien?

From November to February the system produces about 1,239 kWh, which is 17% of the year. The weakest month (December) gives roughly 241 kWh.

Is an east-west roof worth it in Wien?

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 Wien

Ground mount or roof in Wien?

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 Wien

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