How much solar power does Arosa already produce?

116 solar installations with 2 MWp in total are listed in the Swiss Federal Office of Energy register. That is an estimated ~2.9% 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 Arosa?

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 Graubünden

Solar power · Canton of GraubündenLEG forming

Solar power in Arosa

116 solar installations with 2 MWp of capacity are installed in Arosa.

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Solar installations: 116
Installed capacity: 2 MWp
Roof potential in use: ~2.9%; Estimate
Rank in the canton of Graubünden: 80 of 100; 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 Arosa

The suitable roofs of Arosa could deliver around 69 GWh of solar power a year. An estimated ~2.9% of it is used today.

Roof potential per month (GWh)

A LEG is forming in Arosa

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

Communities in Arosa

Arosa Energie - Arosa
Forming
Arosa, GR

Communities nearby

Repower AG - Fideris
Forming
Fideris, GR
Gemeinde Schmitten, Stromversorgung - Schmitten (GR)
Forming
Schmitten (GR), GR
LEG Schmitten
Forming
Schmitten, GR

Join the LEG in Arosa

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

Go to the community

Questions about solar power in Arosa

How much solar power does Arosa already produce?: 116 solar installations with 2 MWp in total are listed in the Swiss Federal Office of Energy register. That is an estimated ~2.9% 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 Arosa?: 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	1	36
2012	3	53
2013	0	0
2014	4	105
2015	6	113
2016	6	38
2017	8	128
2018	7	116
2019	2	62
2020	7	67
2021	3	47
2022	11	116
2023	17	309
2024	19	302
2025	20	524
2026	2	27

Month	GWh
Jan	2.6
Feb	4.1
Mar	6.7
Apr	8
May	8.3
Jun	8.8
Jul	9.1
Aug	8
Sept	5.8
Oct	3.9
Nov	2.4
Dec	1.8

Solar power in Arosa

How much sun falls on the roofs of Arosa

A LEG is forming in Arosa

Communities in Arosa

Arosa Energie - Arosa

Communities nearby

Repower AG - Fideris

Gemeinde Schmitten, Stromversorgung - Schmitten (GR)

LEG Schmitten

Join the LEG in Arosa

Questions about solar power in Arosa