How much solar power does Olten already produce?

291 solar installations with 9.2 MWp in total are listed in the Swiss Federal Office of Energy register. That is an estimated ~8.8% 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 Olten?

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 Olten

291 solar installations with 9.2 MWp of capacity are installed in Olten.

Go to the community

Solar installations: 291
Installed capacity: 9.2 MWp
Roof potential in use: ~8.8%; Estimate
Rank in the canton of Solothurn: 95 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 Olten

The suitable roofs of Olten could deliver around 105 GWh of solar power a year. An estimated ~8.8% of it is used today.

Roof potential per month (GWh)

A LEG is forming in Olten

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

Communities in Olten

Städtische Betriebe Olten (SBO) - Olten
Forming
Olten, SO

Communities nearby

Aare Versorgungs AG (AVAG) - Wangen bei Olten
Active
Wangen bei Olten, SO
4 sites
Aare Versorgungs AG (AVAG) - Starrkirch-Wil
Forming
Starrkirch-Wil, SO
Aare Versorgungs AG (AVAG) - Rickenbach (SO)
Forming
Rickenbach (SO), SO

Join the LEG in Olten

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

Go to the community

Questions about solar power in Olten

How much solar power does Olten already produce?: 291 solar installations with 9.2 MWp in total are listed in the Swiss Federal Office of Energy register. That is an estimated ~8.8% 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 Olten?: 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	12	120
2012	10	609
2013	4	35
2014	2	548
2015	5	41
2016	6	548
2017	13	125
2018	7	73
2019	7	84
2020	13	343
2021	25	863
2022	22	546
2023	45	1’657
2024	55	1’633
2025	48	1’458
2026	17	492

Month	GWh
Jan	2.4
Feb	4.1
Mar	8.2
Apr	11.6
May	14.2
Jun	15.6
Jul	16
Aug	13.4
Sept	9.4
Oct	5.3
Nov	2.5
Dec	1.9

Solar power in Olten

How much sun falls on the roofs of Olten

A LEG is forming in Olten

Communities in Olten

Städtische Betriebe Olten (SBO) - Olten

Communities nearby

Aare Versorgungs AG (AVAG) - Wangen bei Olten

Aare Versorgungs AG (AVAG) - Starrkirch-Wil

Aare Versorgungs AG (AVAG) - Rickenbach (SO)

Join the LEG in Olten

Questions about solar power in Olten