How much solar power does Solothurn already produce?

416 solar installations with 9.6 MWp in total are listed in the Swiss Federal Office of Energy register. That is an estimated ~10% 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 Solothurn?

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 Solothurn

Solar power · Canton of SolothurnLEG forming

Solar power in Solothurn

416 solar installations with 9.6 MWp of capacity are installed in Solothurn.

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Solar installations: 416
Installed capacity: 9.6 MWp
Roof potential in use: ~10%; Estimate
Rank in the canton of Solothurn: 85 of 104; 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 Solothurn

The suitable roofs of Solothurn could deliver around 96 GWh of solar power a year. An estimated ~10% of it is used today.

Roof potential per month (GWh)

A LEG is forming in Solothurn

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

Communities in Solothurn

Regio Energie Solothurn - Solothurn
Forming
Solothurn, SO

Communities nearby

Regio Energie Solothurn - Langendorf
Forming
Langendorf, SO
BKW Energie AG - Zuchwil
Forming
Zuchwil, SO
Regio Energie Solothurn - Zuchwil
Forming
Zuchwil, SO

Join the LEG in Solothurn

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

Go to the community

Questions about solar power in Solothurn

How much solar power does Solothurn already produce?: 416 solar installations with 9.6 MWp in total are listed in the Swiss Federal Office of Energy register. That is an estimated ~10% 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 Solothurn?: 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	20	147
2012	16	302
2013	10	173
2014	24	534
2015	43	841
2016	11	219
2017	15	401
2018	8	102
2019	12	206
2020	20	332
2021	15	152
2022	30	792
2023	62	1’390
2024	81	2’979
2025	39	954
2026	10	127

Month	GWh
Jan	2.8
Feb	4.7
Mar	8.1
Apr	10.6
May	12.2
Jun	13.3
Jul	13.5
Aug	11.5
Sept	8.9
Oct	5.6
Nov	3
Dec	2.2

Solar power in Solothurn

How much sun falls on the roofs of Solothurn

A LEG is forming in Solothurn

Communities in Solothurn

Regio Energie Solothurn - Solothurn

Communities nearby

Regio Energie Solothurn - Langendorf

BKW Energie AG - Zuchwil

Regio Energie Solothurn - Zuchwil

Join the LEG in Solothurn

Questions about solar power in Solothurn