How much solar power does Chalais already produce?

303 solar installations with 6.3 MWp in total are listed in the Swiss Federal Office of Energy register. That is an estimated ~15% 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 Chalais?

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 Valais

Solar power · Canton of ValaisLEG forming

Solar power in Chalais

303 solar installations with 6.3 MWp of capacity are installed in Chalais.

Go to the community

Solar installations: 303
Installed capacity: 6.3 MWp
Roof potential in use: ~15%; Estimate
Rank in the canton of Valais: 17 of 122; 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 Chalais

The suitable roofs of Chalais could deliver around 43 GWh of solar power a year. An estimated ~15% of it is used today.

Roof potential per month (GWh)

A LEG is forming in Chalais

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

Communities in Chalais

OIKEN SA - Chalais
Forming
Chalais, VS

Communities nearby

OIKEN SA - Chippis
Forming
Chippis, VS
OIKEN SA - Sierre
Forming
Sierre, VS
OIKEN SA - Grône
Forming
Grône, VS

Join the LEG in Chalais

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

Go to the community

Questions about solar power in Chalais

How much solar power does Chalais already produce?: 303 solar installations with 6.3 MWp in total are listed in the Swiss Federal Office of Energy register. That is an estimated ~15% 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 Chalais?: 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	9
2012	7	294
2013	2	72
2014	2	114
2015	5	49
2016	4	46
2017	7	37
2018	7	46
2019	10	80
2020	12	116
2021	17	580
2022	36	655
2023	85	2’220
2024	62	1’209
2025	40	661
2026	5	100

Month	GWh
Jan	1.1
Feb	2.1
Mar	3.7
Apr	4.7
May	5.4
Jun	6
Jul	6.1
Aug	5.2
Sept	4.1
Oct	2.7
Nov	1.3
Dec	0.7

Solar power in Chalais

How much sun falls on the roofs of Chalais

A LEG is forming in Chalais

Communities in Chalais

OIKEN SA - Chalais

Communities nearby

OIKEN SA - Chippis

OIKEN SA - Sierre

OIKEN SA - Grône

Join the LEG in Chalais

Questions about solar power in Chalais