AEW Energie

AEW Energie AG is a Swiss energy supply company headquartered in Aarau, in the Canton of Aargau. Established in 1916 as the Aargauisches Elektrizitätswerk, it has supplied electricity in the canton for more than a century. The company became a joint-stock company on 1 October 1999 and remains wholly owned by the Canton of Aargau. It is an independent cantonal enterprise rather than a privately owned utility. Electricity supply and distribution-network operation are central to AEW’s work. It serves customers directly and also supplies electricity through its network infrastructure to municipal and regional energy providers. The company operates and maintains distribution networks in Aargau, and its services support electricity provision across the canton. In addition to supplying and distributing electricity, AEW operates hydropower facilities and participates in other power-generation assets. Its generation and flexibility activities include a battery storage facility in Dättwil and a ground-mounted photovoltaic installation in Spreitenbach. AEW also develops and operates heat networks and energy-contracting facilities, using sources that include groundwater, river and lake water, biomass, geothermal energy and waste heat. Its customer-facing offerings extend to solar installations, heat pumps and heating replacement, home energy systems, electric-vehicle charging and e-mobility services, electrical infrastructure, and related planning, implementation, operation and maintenance. The AEW myHome offer is presented as a package for generating, storing and using household energy, including solar power and associated home solutions. The company also provides online customer services, including access to bills and consumption information. The company’s activities are concentrated in Aargau, where it supplies customers directly and works with local partners. Its official website describes its role as contributing to secure, climate-friendly electricity and heat/cooling supply in the region, and states an ambition to achieve climate neutrality by 2040 at the latest. AEW’s portfolio combines utility operations and regional infrastructure with customer energy services and renewable-energy-related offerings. It is also a 14.03% shareholder in Axpo, according to the supplied German Wikipedia article. The article identifies Marc Ritter as chair of the executive management and Raffael Schubiger as chair of the board of directors, as of 2026.

AEW Energie AG traces its origins to 1916, when it was founded as the Aargauisches Elektrizitätswerk to supply electricity in the Canton of Aargau. It has continued to serve the canton since then, developing into a regional energy company whose remit extends beyond electricity supply. On 1 October 1999, the enterprise was converted into a joint-stock company. It remains wholly owned by the Canton of Aargau, with its activities grounded in cantonal energy legislation and a cantonal decree defining its public-service mandate. Over time, AEW’s operations have grown to include the management and maintenance of electricity distribution networks, its own generation assets and a wider range of energy services. Its generation portfolio includes hydropower plants on the Reuss. The company has also expanded into heat networks and energy contracting, drawing on regional renewable energy sources and waste heat. Customer services described on its official website include solar installations, heat pumps, heating solutions, electric-vehicle charging, e-mobility and online account services. In 2021, AEW commissioned a sodium-based battery storage system from Innovenergy, described in the supplied article as the first of its kind from that manufacturer. In April 2023, AEW began work with Hitachi Energy and the University of Applied Sciences and Arts Northwestern Switzerland on a battery storage facility at its Dättwil substation site. The storage power plant entered service in December 2023. In 2024, the Swiss Federal Office of Energy awarded AEW and ETH Zurich the Watt d’Or in the energy technologies category. The recognized project used an algorithm based on real-time measurements from AEW’s electricity network to regulate photovoltaic systems’ reactive power and support grid stability. AEW’s renewable-energy activities also include a ground-mounted photovoltaic installation at a former substation site in Spreitenbach, which began operating in 2024 and was reported as the first open-field photovoltaic installation in the Canton of Aargau. The company has continued to develop heat infrastructure: the supplied article reports that the Villmergen Industrie heat network entered service in November 2025. It also reports a wood-chip-fired steam plant at the Feldschlösschen brewery site, operated by the jointly held Wärmeverbund Rheinfelden AG, entering service in June 2026; AEW is responsible for operation, maintenance and fuel procurement on behalf of the heat network. AEW has also participated in regional mobility services. Together with Eniwa, it held an interest in Swiss E-Car AG, and the joint car-sharing offer launched in January 2024. In spring 2026, AEW announced that this car-sharing offer would end on 31 October 2026. The company's official website describes its current regional role as providing secure, climate-friendly electricity and heat/cooling, and states an ambition to reach climate neutrality by 2040 at the latest. As of 2026, the supplied German Wikipedia article names Marc Ritter as chair of executive management and Raffael Schubiger as chair of the board of directors.

• Founded as Aargauisches Elektrizitätswerk

• Converted into a joint-stock company

• Commissioned a sodium-based battery storage system

• Started construction of the Dättwil battery storage facility

• Dättwil battery storage plant entered service

• Received the Watt d’Or with ETH Zurich

• Spreitenbach ground-mounted photovoltaic installation began operating

• Swiss E-Car joint car-sharing offer launched

• Villmergen Industrie heat network entered service

• Rheinfelden wood-chip-fired steam plant entered service

• Announced end of the car-sharing offer

A cantonal, regionally focused energy utility combining electricity supply and network operations with generation, renewable-energy-related projects, heat services and customer energy solutions. Its stated direction includes secure, climate-friendly supply and climate neutrality by 2040 at the latest.

• AEW myHome

  A home-energy package promoted for producing, storing and using household energy, with solar and climate-control solutions.

• Electricity supply and network services

  Electricity supply and operation and maintenance of distribution networks, primarily in the Canton of Aargau.

• Heat networks and contracting

  Heat supply and contracting facilities using renewable regional sources and waste heat.

• E-mobility and charging

  Services include home charging stations, public charging stations and e-car-sharing-related offerings.

• Online customer services

  The customer portal provides access to bills and consumption information.

• AEW myHome household energy promotion
• AEW naturemade Ökofonds

• Decision to end the car-sharing offerOther

• Climate-neutrality ambitionOther

1. 1AEW Energie AG - Strom, Wärme, Telekommunikation - für den Aargauaew.ch
2. 2Über unsaew.ch
3. 3Online-Servicesaew.ch
4. 4Arbeiten bei der AEWaew.ch
5. 5AEW Energiede.wikipedia.org
6. 6AEW Energiewikidata.org