How much solar power does Trélex already produce?

162 solar installations with 2.1 MWp in total are listed in the Swiss Federal Office of Energy register. That is an estimated ~17% 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 Trélex?

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 Vaud

Solar power · Canton of VaudLEG forming

Solar power in Trélex

162 solar installations with 2.1 MWp of capacity are installed in Trélex.

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Solar installations: 162
Installed capacity: 2.1 MWp
Roof potential in use: ~17%; Estimate
Rank in the canton of Vaud: 43 of 300; 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 Trélex

The suitable roofs of Trélex could deliver around 12 GWh of solar power a year. An estimated ~17% of it is used today.

Roof potential per month (GWh)

A LEG is forming in Trélex

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

Communities in Trélex

Romande Energie SA - Trélex
Forming
Trélex, VD

Communities nearby

Romande Energie SA - Givrins
Forming
Givrins, VD
Romande Energie SA - Genolier
Forming
Genolier, VD
Romande Energie SA - Grens
Forming
Grens, VD

Join the LEG in Trélex

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

Go to the community

Questions about solar power in Trélex

How much solar power does Trélex already produce?: 162 solar installations with 2.1 MWp in total are listed in the Swiss Federal Office of Energy register. That is an estimated ~17% 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 Trélex?: 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	5
2012	2	16
2013	2	176
2014	3	127
2015	4	49
2016	4	35
2017	9	80
2018	7	53
2019	10	69
2020	7	93
2021	10	65
2022	9	84
2023	39	435
2024	39	577
2025	13	135
2026	2	113

Month	GWh
Jan	0.4
Feb	0.6
Mar	1
Apr	1.3
May	1.5
Jun	1.7
Jul	1.7
Aug	1.6
Sept	1.2
Oct	0.7
Nov	0.4
Dec	0.3

Solar power in Trélex

How much sun falls on the roofs of Trélex

A LEG is forming in Trélex

Communities in Trélex

Romande Energie SA - Trélex

Communities nearby

Romande Energie SA - Givrins

Romande Energie SA - Genolier

Romande Energie SA - Grens

Join the LEG in Trélex

Questions about solar power in Trélex