Energy technology in the
Canton of Solothurn

Waldenergie AG

Since 2009 · 11–20 empl.·4.5(20)

Waldenergie AG supplies wood pellets and firewood and provides mobile pellet heating for temporary heat supply. The company also renovates and maintains forest and unpaved roads.

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 provides services separate from the eug Elektra Untergäu cooperative’s network operations and energy supply. Its activities include billing infrastructure services such as water, wastewater and waste charges, as well as administration, accounting, installation inspection and engineering for partner electricity suppliers.

apex AG

Since 2003 · 11–20 empl.·5.0(3)

apex AG plans, builds and maintains biogas upgrading plants for gas-grid injection or vehicle refuelling. It also supplies natural gas and CNG filling-station equipment and provides services including maintenance, dispenser calibration, storage testing, advice and training.

Nuklearforum Schweiz

Since 1959 · 21–50 empl.

Nuklearforum Schweiz is an association that promotes the peaceful use and further development of nuclear energy in Switzerland. It provides information on developments in nuclear energy and supports the use of nuclear technologies in medicine, industry and research.

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.

HME - Technologies GmbH supplies permanent magnets and related products, special and rare metals, and alloys. Its offerings also include batteries, energy systems and components for renewable energy, with product-related consulting.

inesco AG

Since 2010 · 11–20 empl.

inesco AG develops and sells stationary energy storage systems based on sodium-ion batteries. Its solutions include home storage and systems for agriculture, commercial businesses and industry, along with related project and engineering services.

Windpark Burg AG

Since 2011 · 1–10 empl.

Windpark Burg AG is developing a wind farm project to generate renewable energy from wind power. The project plans five wind turbines in the municipalities of Kienberg and Oberhof.

Energiewirt GmbH

Since 2012 · 1–10 empl.

Energiewirt GmbH develops biomethane projects and supports their implementation for industrial companies and biogas plants. Its services include project and business development, site-specific solutions, funding coordination, and connecting producers with gas buyers.