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Stadtwerke Weimar

Municipally backed utility company supplying electricity, gas, district heating and e-mobility services to Weimar and its region.

Last updated September 26, 2026

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Overview

Stadtwerke Weimar GmbH (SWW) is the municipal utility company serving Weimar, a city of roughly 66,000 residents in the German state of Thuringia. It supplies electricity, gas and district heating, operates local energy networks through a dedicated grid subsidiary, and has expanded into e-mobility with charging solutions such as wallboxes, charging cards and public charging points. Its product range includes regional electricity tariffs, green power, gas tariffs, district heating and combined heat-and-power (CHP) generation, alongside advisory services for heat pumps and photovoltaic combinations. The company is structured as a municipally influenced group. Stadtwirtschaft Weimar GmbH (SWG), a wholly owned holding of the city of Weimar, owns 51% of Stadtwerke Weimar GmbH, while Thüringer Energie AG holds the remaining 49%. Since 2005 the company has been headquartered at Industriestraße 14 in the Weimar-Nord commercial area. In the same year, with a partnership agreement dated 15/23 August 2005, SWW established ENWG Energienetze Weimar GmbH & Co. KG to operate the electricity and gas supply networks. Beyond energy supply, Stadtwerke Weimar is visible in local public life through sponsorship of social, cultural and sporting institutions, clubs and events in and around Weimar, including kindergartens, youth and sports facilities, schools, and cultural events such as Entente Florale and the traditional Zwiebelmarkt onion market. Its customer offering is rounded out by services such as a customer portal, relocation assistance, payment support, quality management and various subsidy programmes, including support for intelligent house connection stations and solar thermal systems. The company also markets a tree sponsorship initiative tied to its WeimarStrom Plus tariff and a greenhouse-gas quota (THG-Quote) premium programme.

History

Stadtwerke Weimar GmbH is a municipal utility with partial city ownership. Its current corporate form and headquarters date to 2005, when the company established its registered office at Industriestraße 14 in the Weimar-Nord commercial area. In the same year, under a partnership agreement dated 15/23 August 2005, SWW founded ENWG Energienetze Weimar GmbH & Co. KG for the purpose of operating the electricity and gas supply networks in Weimar. The ownership structure places the company within the municipal group of the city of Weimar. Stadtwirtschaft Weimar GmbH (SWG) is a wholly owned subsidiary of the city of Weimar, which has around 66,000 inhabitants. As the group parent, SWG holds 51% of Stadtwerke Weimar GmbH, while Thüringer Energie AG holds the remaining 49%. This structure gives the city majority control while retaining a regional energy partner as a minority shareholder. Over time the company has broadened its offering from classic electricity and gas supply to include district heating, green electricity, combined heat and power generation, and e-mobility services. Its website presents regional electricity and gas tariffs, district heating for Weimar, and charging solutions for home and on the go, including wallboxes, charging cards and public charging stations. It also provides advisory services on heat pumps, district heating and photovoltaic combinations, and promotes subsidy programmes for intelligent house connection stations and solar thermal systems. Stadtwerke Weimar maintains a visible community presence through sponsorship of social, cultural and sporting institutions, clubs and events in and around Weimar, supporting kindergartens, youth and sports facilities, schools, and cultural events such as Entente Florale and the traditional Zwiebelmarkt. Its website also highlights campaigns such as the WeimarStrom Plus tree sponsorship initiative and a THG-Quote premium programme, reflecting a positioning around regional supply, sustainability and customer service.

  • 2005

    Stadtwerke Weimar GmbH establishes its registered office at Industriestraße 14 in the Weimar-Nord commercial area.

  • 2005

    With a partnership agreement dated 15/23 August 2005, SWW founds ENWG Energienetze Weimar GmbH & Co. KG to operate the electricity and gas supply networks in Weimar.

Products and positioning

Regional municipal utility offering fair-priced, reliable and sustainable energy and e-mobility services for Weimar and its region.

  • Electricity tariffs for Weimar and the region

  • Green electricity (Ökostrom)

  • Gas tariffs for households

  • District heating (Fernwärme) in Weimar

  • SWW combined heat and power (CHP) plants

  • E-mobility: wallbox, charging card and public charging points

  • Heat pump, district heating and photovoltaic combination advisory

  • Funding for intelligent house connection stations and solar thermal systems

Sources3 sources

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