How much solar power does Sierre already produce?

598 solar installations with 22.7 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 Sierre?

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 Sierre

598 solar installations with 22.7 MWp of capacity are installed in Sierre.

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Solar installations: 598
Installed capacity: 22.7 MWp
Roof potential in use: ~15%; Estimate
Rank in the canton of Valais: 19 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 Sierre

The suitable roofs of Sierre could deliver around 157 GWh of solar power a year. An estimated ~15% of it is used today.

Roof potential per month (GWh)

A LEG is forming in Sierre

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

Communities in Sierre

OIKEN SA - Sierre
Forming
Sierre, VS

Communities nearby

OIKEN SA - Chippis
Forming
Chippis, VS
OIKEN SA - Chalais
Forming
Chalais, VS
OIKEN SA - Noble-Contrée
Forming
Noble-Contrée, VS

Join the LEG in Sierre

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

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Questions about solar power in Sierre

How much solar power does Sierre already produce?: 598 solar installations with 22.7 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 Sierre?: 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	4	873
2012	6	232
2013	12	1’580
2014	9	1’165
2015	7	391
2016	10	147
2017	27	470
2018	20	1’033
2019	44	803
2020	32	553
2021	28	728
2022	74	2’000
2023	126	2’586
2024	120	5’679
2025	66	3’288
2026	13	1’209

Month	GWh
Jan	4.8
Feb	7.7
Mar	12.9
Apr	16.9
May	19.6
Jun	21.5
Jul	21.7
Aug	18.7
Sept	14.6
Oct	9.6
Nov	5.2
Dec	3.5

Solar power in Sierre

How much sun falls on the roofs of Sierre

A LEG is forming in Sierre

Communities in Sierre

OIKEN SA - Sierre

Communities nearby

OIKEN SA - Chippis

OIKEN SA - Chalais

OIKEN SA - Noble-Contrée

Join the LEG in Sierre

Questions about solar power in Sierre