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Swiss Made Software
All municipalities in the canton of St. Gallen
Solar power · Canton of St. GallenLEG forming

Solar power in Rapperswil-Jona

706 solar installations with 18.6 MWp of capacity are installed in Rapperswil-Jona.

Go to the community
Solar installations
706
Installed capacity
18.6 MWp
Roof potential in use
~13%
Estimate
Rank in the canton of St. Gallen
67 of 75
by roof potential in use
Growth by build yearNew capacity installed per year in kWp
before 2012 · 147 kWp
2012 · 186 kWp
2013 · 131 kWp
2014 · 215 kWp

Roof potential

How much sun falls on the roofs of Rapperswil-Jona

The suitable roofs of Rapperswil-Jona could deliver around 146 GWh of solar power a year. An estimated ~13% of it is used today.

Roof potential per month (GWh)
Jan · 3.9 GWh
Feb · 6.5 GWh
Mar · 12.1 GWh

A LEG is forming in Rapperswil-Jona

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

Communities in Rapperswil-Jona

  • Rapperswil-Jona

    Elektrizitätswerk Jona-Rapperswil AG - Rapperswil-Jona

    Forming

    Rapperswil-Jona, SG

Communities nearby

  • Elektrizitätswerk Schmerikon AG - Schmerikon

    Forming

    Schmerikon, SG

  • Uznach

    Elektrizitätswerk Uznach AG - Uznach

    Forming

    Uznach, SG

  • Benken

    LEG Benken

    Forming

    Benken, SG

Join the LEG in Rapperswil-Jona

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

Go to the community

Questions about solar power in Rapperswil-Jona

How much solar power does Rapperswil-Jona already produce?
706 solar installations with 18.6 MWp in total are listed in the Swiss Federal Office of Energy register. That is an estimated ~13% 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 Rapperswil-Jona?
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.

2015 · 639 kWp
2016 · 325 kWp
2017 · 470 kWp
2018 · 435 kWp
2019 · 1’369 kWp
2020 · 1’250 kWp
2021 · 2’000 kWp
2022 · 2’506 kWp
2023 · 2’646 kWp
3’8082024 · 3’808 kWp
2025 · 2’094 kWp
2026 · 411 kWp
<’12’12’13’14’15’16’17’18’19’20’21’22’23’24’25’26
New solar capacity per build year in Rapperswil-Jona
Build yearInstallationsCapacity (kWp)
before 201212147
201212186
201311131
20147215
201520639
201622325
201729470
201819435
2019421’369
2020481’250
2021602’000
2022842’506
20231392’646
20241133’808
2025752’094
202613411

18.5 MWp have been added since 2012.

Apr · 16.3 GWh
May · 18.6 GWh
Jun · 20 GWh
21Jul · 20.7 GWh
Aug · 18.6 GWh
Sept · 13.5 GWh
Oct · 8.5 GWh
Nov · 4.5 GWh
Dec · 3.3 GWh
JJanFFebMMarAAprMMayJJunJJulAAugSSeptOOctNNovDDec
Monthly roof potential in GWh
MonthGWh
Jan3.9
Feb6.5
Mar12.1
Apr16.3
May18.6
Jun20
Jul20.7
Aug18.6
Sept13.5
Oct8.5
Nov4.5
Dec3.3