How much solar power does Widnau already produce?

659 solar installations with 10.9 MWp in total are listed in the Swiss Federal Office of Energy register. That is an estimated ~14% of the municipality's roof potential.

Where do these numbers come from?

From federal open data: the register of electricity production plants and the solar potential of Swiss municipalities (Swiss Federal Office of Energy), plus swisstopo municipal boundaries. We only show totals per municipality, never individual installations.

Can I start a LEG in Widnau?

Yes. A local electricity community is possible in any municipality, as long as all participants are in the same grid area and close to each other. UpGrid handles registration, metering and billing.

All municipalities in the canton of St. Gallen

Solar power · Canton of St. GallenLEG forming

Solar power in Widnau

659 solar installations with 10.9 MWp of capacity are installed in Widnau.

Go to the community

Solar installations: 659
Installed capacity: 10.9 MWp
Roof potential in use: ~14%; Estimate
Rank in the canton of St. Gallen: 59 of 75; by roof potential in use

Growth by build yearNew capacity installed per year in kWp

Roof potential

How much sun falls on the roofs of Widnau

The suitable roofs of Widnau could deliver around 76 GWh of solar power a year. An estimated ~14% of it is used today.

Roof potential per month (GWh)

A LEG is forming in Widnau

A local electricity community is collecting sign-ups here. The more neighbours join, the sooner it starts.

Communities in Widnau

Politische Gemeinde Widnau, Elektra / Stromversorgung - Widnau
Forming
Widnau, SG

Communities nearby

Politische Gemeinde Diepoldsau, Elektrizitätsversorgung - Diepoldsau
Forming
Diepoldsau, SG
Gemeinde Balgach, Elektrizitätsversorgung - Balgach
Forming
Balgach, SG
LEG Au
Forming
Au, SG

Join the LEG in Widnau

Get solar power from your neighbourhood. Joining is free and you keep your electricity supplier.

Go to the community

Questions about solar power in Widnau

How much solar power does Widnau already produce?: 659 solar installations with 10.9 MWp in total are listed in the Swiss Federal Office of Energy register. That is an estimated ~14% of the municipality's roof potential.
Where do these numbers come from?: From federal open data: the register of electricity production plants and the solar potential of Swiss municipalities (Swiss Federal Office of Energy), plus swisstopo municipal boundaries. We only show totals per municipality, never individual installations.
Can I start a LEG in Widnau?: Yes. A local electricity community is possible in any municipality, as long as all participants are in the same grid area and close to each other. UpGrid handles registration, metering and billing.

Sources: Swiss Federal Office of Energy (SFOE), swisstopo, opendata.swiss. As of October 2026. Totals per municipality only, no individual installations.

Build year	Installations	Capacity (kWp)
before 2012	17	110
2012	21	234
2013	17	174
2014	16	164
2015	83	868
2016	20	496
2017	20	229
2018	45	494
2019	22	262
2020	25	539
2021	26	464
2022	64	1’049
2023	139	2’919
2024	92	1’964
2025	46	834
2026	6	98

Month	GWh
Jan	2.1
Feb	3.5
Mar	6.3
Apr	8.4
May	9.7
Jun	10.4
Jul	10.6
Aug	9.6
Sept	6.8
Oct	4.4
Nov	2.3
Dec	1.7

Solar power in Widnau

How much sun falls on the roofs of Widnau

A LEG is forming in Widnau

Communities in Widnau

Politische Gemeinde Widnau, Elektra / Stromversorgung - Widnau

Communities nearby

Politische Gemeinde Diepoldsau, Elektrizitätsversorgung - Diepoldsau

Gemeinde Balgach, Elektrizitätsversorgung - Balgach

LEG Au

Join the LEG in Widnau

Questions about solar power in Widnau