How much solar power does Troistorrents already produce?

423 solar installations with 5.2 MWp in total are listed in the Swiss Federal Office of Energy register. That is an estimated ~9.5% 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 Troistorrents?

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 Troistorrents

423 solar installations with 5.2 MWp of capacity are installed in Troistorrents.

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Solar installations: 423
Installed capacity: 5.2 MWp
Roof potential in use: ~9.5%; Estimate
Rank in the canton of Valais: 48 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 Troistorrents

The suitable roofs of Troistorrents could deliver around 54 GWh of solar power a year. An estimated ~9.5% of it is used today.

Roof potential per month (GWh)

A LEG is forming in Troistorrents

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

Communities in Troistorrents

Romande Energie SA - Troistorrents
Forming
Troistorrents, VS

Communities nearby

Monthey Energies SA - Monthey
Forming
Monthey, VS
Romande Energie SA - Val-d'Illiez
Forming
Val-d'Illiez, VS
Genedis SA - Vérossaz
Forming
Vérossaz, VS

Join the LEG in Troistorrents

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

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Questions about solar power in Troistorrents

How much solar power does Troistorrents already produce?: 423 solar installations with 5.2 MWp in total are listed in the Swiss Federal Office of Energy register. That is an estimated ~9.5% 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 Troistorrents?: 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	5	27
2012	4	33
2013	2	20
2014	3	33
2015	11	106
2016	14	136
2017	36	266
2018	25	210
2019	18	160
2020	23	218
2021	32	291
2022	45	543
2023	103	1’817
2024	66	759
2025	29	456
2026	7	81

Month	GWh
Jan	1.9
Feb	3
Mar	4.9
Apr	5.9
May	6.3
Jun	7
Jul	7.1
Aug	6.1
Sept	5.1
Oct	3.6
Nov	1.9
Dec	1.4

Solar power in Troistorrents

How much sun falls on the roofs of Troistorrents

A LEG is forming in Troistorrents

Communities in Troistorrents

Romande Energie SA - Troistorrents

Communities nearby

Monthey Energies SA - Monthey

Romande Energie SA - Val-d'Illiez

Genedis SA - Vérossaz

Join the LEG in Troistorrents

Questions about solar power in Troistorrents