Stadtwerke Bad Langensalza
Municipal utility supplying electricity, natural gas and district heating to Bad Langensalza and the surrounding region in Thuringia, Germany.
Last updated September 26, 2026
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Overview
Stadtwerke Bad Langensalza GmbH (SWL) is a municipal utility company headquartered in Bad Langensalza, Thuringia, Germany. It supplies electricity, natural gas and district heating to households, businesses and public institutions in the town and its surrounding region. The company was founded in 1992 as Energieversorgung Bad Langensalza GmbH and was renamed Stadtwerke Bad Langensalza GmbH in 1998. In 2006, in response to statutory requirements, it established Stadtwerke Bad Langensalza NETZ GmbH (SWLN), a wholly owned subsidiary that has operated the electricity and gas networks since 2007. SWL is a communal enterprise owned 60% by the town of Bad Langensalza and 40% by Thüringer Energie AG. Its customer centre is located at Illebener Weg 11 a, where customers can obtain product, price and billing information as well as advice. The company positions itself as a competent and reliable local energy partner offering personal advice close to home, with a focus on special products and services as well as transparency. It has been recognised as a 'TOP-Lokalversorger' (top local supplier) in both electricity and gas. In electricity, SWL offers basic supply tariffs under general prices as well as fixed-price, term-based and green electricity special agreements, and it is the default supplier (Grundversorger) in the town and its districts. In natural gas, it similarly offers basic supply tariffs and additional models such as fixed-price, term-based and combined special agreements, and is the default supplier in Bad Langensalza and the districts of Waldstedt and Zimmern. It also operates a natural gas filling station and offers subsidy programmes. In district heating, SWL supplies around 1,300 households and public facilities in the town area, with heat generated in two of its own combined heat and power (CHP) plants and two heating houses; it also operates several contracting facilities. The company's website provides a price calculator and customer centre, and it issues warnings to customers about door-to-door sales and about electricity tariff comparisons on online comparison portals, noting that such comparisons often contrast the higher basic supply tariffs (without contractual commitment) with contract-based tariffs from online providers.
History
Stadtwerke Bad Langensalza GmbH traces its origins to 1992, when Energieversorgung Bad Langensalza GmbH was founded. In 1998 the company was renamed Stadtwerke Bad Langensalza GmbH (SWL). In response to statutory requirements, the company established Stadtwerke Bad Langensalza NETZ GmbH (SWLN) in 2006; from 2007 this wholly owned subsidiary has been responsible for the electricity and gas networks as the network company. The utility operates as a communal enterprise owned 60% by the town of Bad Langensalza and 40% by Thüringer Energie AG, and it supplies customers in the town, its districts and beyond the region with electricity, natural gas, district heating and services. Its customer centre is located at Illebener Weg 11 a.
- 2007
SWLN begins operating as the network company for electricity and gas networks.
- 2006
Stadtwerke Bad Langensalza NETZ GmbH (SWLN) founded as a wholly owned subsidiary.
- 1998
Renamed Stadtwerke Bad Langensalza GmbH (SWL).
- 1992
Energieversorgung Bad Langensalza GmbH founded.
Products and positioning
Competent and reliable local energy partner offering personal advice, special products and services, and transparency; recognised as a 'TOP-Lokalversorger' in electricity and gas.
Electricity supply
Basic supply tariffs under general prices plus fixed-price, term-based and green electricity special agreements; SWL is the default supplier in Bad Langensalza and its districts.
Natural gas supply
Basic supply tariffs plus fixed-price, term-based and combined special agreements; SWL is the default supplier in Bad Langensalza and the districts of Waldstedt and Zimmern. It also operates a natural gas filling station and offers subsidy programmes.
District heating
Supplies around 1,300 households and public facilities in the town area, with heat generated in two own CHP plants and two heating houses; also operates several contracting facilities.
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