Energy Industry in the
Canton of Solothurn

Waldenergie AG

Since 2009 · 11–20 empl.·4.5(20)

The core activity of Waldenergie AG is the production and distribution of wood pellets, as well as the provision of services in the field of wood energy, including the delivery of firewood and the execution of natural road construction. The company also offers mobile pellet logistics and heating solutions and specializes in the development of sustainable and innovative solutions for the wood energy industry.

AEK Pellet AG

Since 2003 · 11–20 empl.·4.7(11)

The core activity of AEK Pellet AG is the production of wood pellets as a renewable fuel for heating purposes. The company processes untreated sawdust into high-quality pellets, which are marketed under the AEK-Pellets brand.

Plattenstrom GmbH

Since 2023 · 11–20 empl.·5.0(26)

Plattenstrom GmbH designs, supplies and installs photovoltaic systems, including rooftop and in‑roof installations, balcony PV kits and custom solar solutions. The company sells modules, storage systems and mounting components and provides planning, permitting support, roof covering and installation services.

eug INFRA AG

Since 2004 · 11–20 empl.·4.4(7)

eug INFRA AG is a wholly owned subsidiary of eug Elektra Untergäu Genossenschaft that consolidates services not directly related to network operation and energy supply. Services include billing infrastructure fees on behalf of municipalities (e.g., water, wastewater and waste charges) and providing administration, accounting, installation control and engineering services to partner utilities.

apex AG

Since 2003 · 11–20 empl.·5.0(3)

The company's core activity is the development, maintenance and servicing of plants and systems for the processing and use of natural gas, biogas and hydrogen as vehicle fuels. This includes, in particular, the processing of biogas, maintenance of biogas processing plants and natural gas filling stations, calibration of fuel dispensers, storage tank inspections and disposal of high-pressure cylinders. The company also offers training, consulting and maintenance of plants.

Nuklearforum Schweiz

Since 1959 · 21–50 empl.

The company's core activity is the development, construction and operation of nuclear power plants, particularly reactors of the type "European Pressurised Water Reactor" (EPR), as well as the provision of services in the field of nuclear energy, including the training of plant personnel, the commissioning of plants and the integration of nuclear authorities.

Alpiq Hydro Aare AG

Since 2000 · 101–500 empl.

Alpiq Hydro Aare AG operates and maintains hydropower plants and dam structures. The company is the operator of the Winznau weir and is responsible for renovation and maintenance work on its hydro installations.

Aare Energie AG (a.en)

Since 2002 · 11–20 empl.

Aare Energie AG (a.en) is a regional energy utility supplying electricity, gas, heat and water. The company manages the operational activities of the municipal utility Städtische Betriebe Olten (sbo) and provides network operation, production and storage services as well as mobility, energy-efficiency and photovoltaic solutions.

HME - Technologies GmbH

Since 2010 · 1–10 empl.

The company's core activity consists of the development, manufacture and distribution of products and components in the following areas: 1. Magnets and magnetic materials 2. Special and rare metals and alloys 3. Components for renewable energy systems, including batteries, inverters and solar panels 4. Power supply systems, including UPS systems (uninterruptible power supply) The company also offers consulting services for the selection and optimization of products.

inesco AG

Since 2010 · 11–20 empl.

inesco AG develops and supplies sodium-ion battery energy storage systems, offering modular storage solutions for residential, commercial, industrial and agricultural applications. Products include sodistore home, sodistore pro and retrofit exchange kits; systems are assembled in cooperation with partners.

Windpark Burg AG

Since 2011 · 1–10 empl.

The core activity of Windpark Burg AG is the planning, development and realization of wind farms, in particular the Windpark Burg, which is planned on a Jura height in the border area of the cantons of Solothurn and Aargau. The company focuses on the construction of wind energy plants for the generation of renewable energy.

Energiewirt GmbH

Since 2012 · 1–10 empl.

Energiewirt GmbH develops and manages agricultural biogas projects, offering project development, business development and site-specific solutions for producing and upgrading biogas for power, fuel or grid injection.