How much solar power does Walchwil already produce?

120 solar installations with 2.7 MWp in total are listed in the Swiss Federal Office of Energy register. That is an estimated ~13% 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 Walchwil?

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 Zug

Solar power · Canton of ZugLEG forming

Solar power in Walchwil

120 solar installations with 2.7 MWp of capacity are installed in Walchwil.

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Solar installations: 120
Installed capacity: 2.7 MWp
Roof potential in use: ~13%; Estimate
Rank in the canton of Zug: 10 of 11; 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 Walchwil

The suitable roofs of Walchwil could deliver around 21 GWh of solar power a year. An estimated ~13% of it is used today.

Roof potential per month (GWh)

A LEG is forming in Walchwil

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

Communities in Walchwil

WWZ Energie AG - Walchwil
Forming
Walchwil, ZG

Communities nearby

WWZ Energie AG - Unterägeri
Forming
Unterägeri, ZG
WWZ Energie AG - Zug
Forming
Zug, ZG
WWZ Energie AG - Risch
Forming
Risch, ZG

Join the LEG in Walchwil

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

Go to the community

Questions about solar power in Walchwil

How much solar power does Walchwil already produce?: 120 solar installations with 2.7 MWp in total are listed in the Swiss Federal Office of Energy register. That is an estimated ~13% 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 Walchwil?: 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	2	18
2012	0	0
2013	0	0
2014	2	19
2015	1	10
2016	4	86
2017	5	79
2018	3	157
2019	3	103
2020	9	165
2021	11	223
2022	14	292
2023	22	523
2024	24	486
2025	17	491
2026	3	53

Month	GWh
Jan	0.6
Feb	1
Mar	1.8
Apr	2.3
May	2.6
Jun	2.8
Jul	2.9
Aug	2.7
Sept	1.9
Oct	1.2
Nov	0.7
Dec	0.5

Solar power in Walchwil

How much sun falls on the roofs of Walchwil

A LEG is forming in Walchwil

Communities in Walchwil

WWZ Energie AG - Walchwil

Communities nearby

WWZ Energie AG - Unterägeri

WWZ Energie AG - Zug

WWZ Energie AG - Risch

Join the LEG in Walchwil

Questions about solar power in Walchwil