How much solar power does Tannay already produce?

142 solar installations with 1.3 MWp in total are listed in the Swiss Federal Office of Energy register. That is an estimated ~11% 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 Tannay?

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 Tannay

142 solar installations with 1.3 MWp of capacity are installed in Tannay.

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Solar installations: 142
Installed capacity: 1.3 MWp
Roof potential in use: ~11%; Estimate
Rank in the canton of Vaud: 162 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 Tannay

The suitable roofs of Tannay could deliver around 12 GWh of solar power a year. An estimated ~11% of it is used today.

Roof potential per month (GWh)

A LEG is forming in Tannay

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

Communities in Tannay

Romande Energie SA - Tannay
Forming
Tannay, VD

Communities nearby

Romande Energie SA - Mies
Forming
Mies, VD
Romande Energie SA - Coppet
Forming
Coppet, VD
Romande Energie SA - Commugny
Forming
Commugny, VD

Join the LEG in Tannay

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

Go to the community

Questions about solar power in Tannay

How much solar power does Tannay already produce?: 142 solar installations with 1.3 MWp in total are listed in the Swiss Federal Office of Energy register. That is an estimated ~11% 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 Tannay?: 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	7
2012	0	0
2013	1	4
2014	2	16
2015	9	54
2016	2	26
2017	5	20
2018	8	48
2019	15	125
2020	8	62
2021	9	94
2022	20	125
2023	26	291
2024	25	314
2025	9	107
2026	1	22

Month	GWh
Jan	0.3
Feb	0.5
Mar	1
Apr	1.3
May	1.5
Jun	1.6
Jul	1.7
Aug	1.5
Sept	1.2
Oct	0.7
Nov	0.3
Dec	0.3

Solar power in Tannay

How much sun falls on the roofs of Tannay

A LEG is forming in Tannay

Communities in Tannay

Romande Energie SA - Tannay

Communities nearby

Romande Energie SA - Mies

Romande Energie SA - Coppet

Romande Energie SA - Commugny

Join the LEG in Tannay

Questions about solar power in Tannay