How much solar power does Martigny already produce?

540 solar installations with 30.5 MWp in total are listed in the Swiss Federal Office of Energy register. That is an estimated ~19% 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 Martigny?

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 Martigny

540 solar installations with 30.5 MWp of capacity are installed in Martigny.

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Solar installations: 540
Installed capacity: 30.5 MWp
Roof potential in use: ~19%; Estimate
Rank in the canton of Valais: 7 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 Martigny

The suitable roofs of Martigny could deliver around 161 GWh of solar power a year. An estimated ~19% of it is used today.

Roof potential per month (GWh)

A LEG is forming in Martigny

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

Communities in Martigny

Sinergy Infrastructure SA - Martigny
Forming
Martigny, VS

Communities nearby

Genedis SA - Vernayaz
Forming
Vernayaz, VS
SEDRE SA - Sembrancher
Forming
Sembrancher, VS
Genedis SA - Dorénaz
Forming
Dorénaz, VS

Join the LEG in Martigny

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

Go to the community

Questions about solar power in Martigny

How much solar power does Martigny already produce?: 540 solar installations with 30.5 MWp in total are listed in the Swiss Federal Office of Energy register. That is an estimated ~19% 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 Martigny?: 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	3	439
2012	7	2’655
2013	5	311
2014	12	790
2015	14	1’399
2016	5	259
2017	13	170
2018	15	1’500
2019	20	206
2020	16	312
2021	40	1’110
2022	73	2’657
2023	128	8’078
2024	122	7’567
2025	62	2’697
2026	5	367

Month	GWh
Jan	3.9
Feb	7.2
Mar	13
Apr	17.7
May	20.8
Jun	23.3
Jul	23.3
Aug	19.9
Sept	15.2
Oct	9.6
Nov	4.5
Dec	2.7

Solar power in Martigny

How much sun falls on the roofs of Martigny

A LEG is forming in Martigny

Communities in Martigny

Sinergy Infrastructure SA - Martigny

Communities nearby

Genedis SA - Vernayaz

SEDRE SA - Sembrancher

Genedis SA - Dorénaz

Join the LEG in Martigny

Questions about solar power in Martigny