Energy producer in the
Canton of Solothurn
64 companies in Energy producer based in the Canton of Solothurn — name and year of registration from the commercial register.
50 of 64 companies
Kernkraftwerk Gösgen-Däniken AG
Since 1973 · 500+ empl.4.3(266)
Kernkraftwerk Gösgen-Däniken AG operates a nuclear power plant to generate electricity. Its activities also include the treatment and storage of radioactive waste.
SV Kompostieranlage Bellach AG
Since 1991 · 1–10 empl.4.9(12)
SV Kompostieranlage Bellach AG operates a facility that accepts and processes organic waste. It sells products including soil, compost, fertilisers and wood products.
MEGASOL ENERGIE AG
Since 2004 · 101–500 empl.4.0(170)
MEGASOL ENERGIE AG manufactures solar modules and photovoltaic systems. Its product range includes solutions for roofs and façades, as well as carports, agri-photovoltaics and battery storage.
LANDI RESO, Genossenschaft
Since 1912 · 21–50 empl.4.2(1088)
LANDI RESO, Genossenschaft is an agricultural cooperative active in agriculture, retail and energy. It supplies farms with production materials, consumables and services, and supports the marketing of their produce. Its activities also include food and goods for the home and garden, filling stations, heating oil, wood pellets, solar energy and its own bakery.
Regio Energie Solothurn
Since 1995 · 51–100 empl.4.3(6)
Regio Energie Solothurn supplies households, businesses and municipalities with electricity, gas, district heating and water. The energy provider also offers energy consulting and planning, building installation services, and the planning, construction, operation and maintenance of energy systems and networks.
SWG
Since 1997 · 51–100 empl.4.1(29)
The company's core activity is the supply of energy, water and heat to the local population. The company produces and distributes electricity, heat and water and is also responsible for the networks and supply systems. It is also committed to a sustainable future and promotes the production of renewable energies in the region.
eug Elektra Untergäu Genossenschaft
Since 1907 · 11–20 empl.4.4(7)
eug Elektra Untergäu Genossenschaft supplies electricity to its members and customers and operates the electricity grid in its service area. It offers a range of electricity products, grid connections and other services, and operates photovoltaic installations.
Genossenschaft Elektra Äusseres Wasseramt EAW
Since 1908 · 11–20 empl.
Genossenschaft Elektra Äusseres Wasseramt EAW is an energy cooperative that procures and distributes electricity. It operates the level 7 distribution network and provides related services in Aeschi (part of the municipality), Etziken, Horriwil and Hüniken.
Genossenschaft ELEKTRA OEKINGEN HALTEN
Since 1913 · 1–10 empl.
Genossenschaft ELEKTRA OEKINGEN HALTEN procures electricity, operates the electricity distribution network and supplies customers with power. Its service area covers the municipalities of Oekingen and Halten.
SO-ENERGIE AG
Since 1987 · 11–20 empl.
SO-ENERGIE AG supplies energy and heat to the Thal-Gäu-Bipperamt region. It operates a natural gas distribution network and provides services to municipalities, industry and private customers.
Aare Versorgungs AG (AVAG)
Since 1999 · 11–20 empl.
Aare Versorgungs AG (AVAG) is a regional energy supplier providing services in electricity, gas, heat and water. The company carries out operational management of a municipal utility and offers services to third parties, including network operation, energy production (including photovoltaic systems), billing, energy advisory and mobility solutions such as charging infrastructure and refuelling stations.
Regio Netze Solothurn AG
Since 2001 · 51–100 empl.
Regio Netze Solothurn AG operates energy infrastructure and provides services for electricity, natural gas and renewable gases, district heating, drinking water and building technology. Its services include grid operation, energy consulting, customer services (portal, billing enquiries, smart‑metering), 24/7 fault response, e‑mobility solutions and contracting for private, commercial and municipal customers.
HEnergie Härkingen HEH
Since 2005 · 11–20 empl.
HEnergie Härkingen HEH supplies electricity to end users and operates the electricity distribution network. On behalf of the municipality, it is also responsible for expanding, operating and maintaining public street lighting, and supports the formation of collective self-consumption arrangements.
Alpiq EcoPower Schweiz AG
Since 2006 · 51–100 empl.
Alpiq EcoPower Schweiz AG is a Swiss electricity producer and energy services company. The company is active in power generation, energy trading, marketing, and energy optimisation, and it also provides energy solutions for industrial and business customers.
Elektra Dulliken AG
Since 2007 · 1–10 empl.
The core activity of the company is the management and administration of the municipality of Dulliken, including the provision of services such as resident control, financial management, building administration, school administration and Social Region Upper Niederamt (SON), as well as supporting citizens and businesses in the municipality.
Städtische Betriebe Olten (SBO)
Since 2009 · 11–20 empl.
Städtische Betriebe Olten (SBO) is an independent public-law enterprise owned by the municipality of Olten. It supplies end users with electricity, gas, water and, in part, heat; Aare Energie AG is responsible for its operational management.
Energie Kestenholz
Since 2009 · 1–10 empl.
Energie Kestenholz operates the electricity network and supplies customers with electrical energy. It is a wholly owned subsidiary of the Einwohnergemeinde Kestenholz and serves the municipality’s area.
Aare-Tessin AG für Elektrizität (Atel)
Since 2009 · 11–20 empl.
Aare-Tessin AG für Elektrizität (Atel) is an energy utility that supplies electricity, gas, heat and water and operates distribution network services. It also provides energy production and storage services (including photovoltaic systems), metering and connection services, energy advice, mobility solutions and services for third parties.
Alpiq EcoPower AG
Since 2010 · 51–100 empl.
Alpiq EcoPower AG is an energy company focused on power generation, energy trading and energy services. The website highlights assets in hydropower, wind power, solar energy, thermal power plants and battery storage systems, as well as solutions for energy management and the operation of renewable energy sources.
QLTECH Gisler
Since 2011 · 1–10 empl.
QLTECH Gisler provides independent advice on district-heating contracts, technical matters, implications and costs. The business develops district-heating network projects, assesses the heat potential of areas and supports customers with the implementation of building connections.
Elektrizitätsversorgung Egerkingen
Since 2011 · 1–10 empl.
Elektrizitätsversorgung Egerkingen supplies energy to end users and operates an electricity distribution network. It is also responsible for expanding, operating and maintaining public street lighting.
Elektrizitätsversorgung Oberbuchsiten
Since 2014 · 11–20 empl.
Elektrizitätsversorgung Oberbuchsiten operates the electricity distribution network and supplies electricity to end users. On behalf of the municipality, it is also responsible for expanding, operating and maintaining public street lighting.
Wärmeverbund Schnottwil AG
Since 2014 · 11–20 empl.
Wärmeverbund Schnottwil AG operates a district heating network, supplying households, public buildings and businesses with heat generated from regional wood chips. Heat is produced at a central plant and delivered to connected buildings through the network.
a.en Control AG
Since 2019 · 1–10 empl.
a.en Control AG inspects electrical installations in buildings and facilities, carries out acceptance inspections and checks, among other things, street lighting and transformer stations. Its services also include safety inspections and advice on electrical installations, as well as combustion inspections of gas heating appliances.
Elektra Wolfwil AG
Since 1906 · 11–20 empl.
The core activity of Elektra Wolfwil AG is the supply of electricity and related services, including the maintenance and repair of power grids as well as the provision of electricity tariffs and fees.
Elektra Fulenbach (EFU)
Since 2009 · 11–20 empl.
Elektra Fulenbach (EFU) is a public-law enterprise and operator of the electricity network in the municipality of Fulenbach. It supplies households, businesses and public institutions with electricity and is responsible for maintaining and expanding the network.
Hydrospider AG
Since 2019 · 11–20 empl.
The core activity of Hydrospider AG is the procurement, production and logistics of green hydrogen from CO2-free production, particularly for use in the mobility and logistics sectors, as well as the marketing and distribution of verifiably green hydrogen for the decarbonization of heavy-duty transport.
Elektra Gretzenbach AG
Since 2007 · 21–50 empl.4.3(6)
ThermNet Fulenbach AG
Since 2024 · 1–10 empl.
ThermNet Fulenbach AG operates a local district heating network using heat from a wood-chip furnace, supplemented by an alternative energy source. It supplies households, municipal properties, commercial, service and industrial businesses, and public buildings with heat.
Nahwärmeverbund Wolfwil
Since 2011 · 11–20 empl.5.0(1)
Nahwärmeverbund Wolfwil is a service of the municipality of Wolfwil related to district heating operations and supply. The website points to municipal administration, services, and energy-related local infrastructure.
BKW AEK Contracting AG
Since 2017 · 11–20 empl.3.0(2)
BKW AEK Contracting AG is a company of the BKW Group that produces climate-friendly district heat from renewable sources. The company handles planning, financing, construction, operation and maintenance of heat networks and customer connections for residential and industrial buildings.
EWD
Since 2005 · 1–10 empl.2.7(10)
EWD is the electricity and water utility of Derendingen. The public utility provides water services and operates fibre-optic infrastructure; electricity grid operations and energy supply are handled by Regio Energie Solothurn.
trafopower AG
Since 2004 · 11–20 empl.4.0(2)
trafopower AG sells transformers and spare parts and provides installation, testing and maintenance services. Its other activities include transformer oil analysis and treatment, as well as grid services for transformer stations and cable work.
Elektra Mümliswil-Ramiswil Genossenschaft
Since 1907 · 11–20 empl.5.0(1)
Elektra Mümliswil-Ramiswil Genossenschaft operates electricity and multimedia distribution networks and supplies households and businesses with electricity and multimedia services. Its fibre-optic network supports services including internet access.
EV Energieversorgung Biberist
Since 2005 · 11–20 empl.3.0(8)
EV Energieversorgung Biberist supplies electricity to end users and operates and maintains the electricity distribution network. Its services include renewable electricity products, network services, and support for solar power, electric mobility and energy-sharing arrangements.
Genossenschaft Elektra Thal
Since 1911 · 11–20 empl.4.0(1)
Genossenschaft Elektra Thal procures and supplies electricity and operates the electricity distribution network. It serves the municipalities of Aedermannsdorf, Herbetswil, Laupersdorf and Matzendorf, as well as individual mountain farms in Mümliswil-Ramiswil.
Nodera AG
Since 2025 · 1–10 empl.
Nodera AG develops, installs and operates photovoltaic systems, and offers flexible financing options and the purchase of existing solar installations. Its services also include integrated solutions with solar panels, EV charging stations, battery storage and energy management, as well as system maintenance and monitoring.
GEBNET AG
Since 2009 · 11–20 empl.1.3(15)
GEBNET AG offers electricity products, services and information related to electricity supply.
Elektra Genossenschaft Holderbank
Since 1906 · 1–10 empl.
Elektra Genossenschaft Holderbank supplies its members and other customers with electricity and procures energy on the market. It builds, operates and maintains the electricity network, including network upgrades and fault response.
Wärmeverbund Laupersdorf Genossenschaft
Since 1994 · 1–10 empl.
WKG Energie Service AG
Since 1999 · 1–10 empl.
BAWA Biogas GmbH
Since 2005 · 1–10 empl.
Elektra Däniken AG
Since 2007 · 1–10 empl.
Elektra Obergösgen AG
Since 2007 · 1–10 empl.
Windpark Schwängimatt AG
Since 2009 · 1–10 empl.
Vind Invest GmbH
Since 2009 · 1–10 empl.
Wärme Mittelland AG
Since 2012 · 1–10 empl.
Wärmeverbund Unterramsern AG
Since 2012 · 1–10 empl.
kurth & co hydro GmbH
Since 2014 · 1–10 empl.
Genossenschaft Wärmeverbund Aetigkofen
Since 2014 · 1–10 empl.
Energy producer in the Canton of Solothurn
Energy producer in the region
Point size by number of companies per place.
Source: commercial register (Zefix) · as of November 7, 2026
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