Stadtwerke Neu-Isenburg

Stadtwerke Neu-Isenburg GmbH, commonly abbreviated swni, is the municipal utility company serving the town of Neu-Isenburg in the German state of Hesse. As a kommunales Unternehmen (municipal enterprise), it is owned by the town and operates as a multi-service provider covering electricity, natural gas and drinking water, public transport and leisure facilities. Its registered office and customer centre are located at Schleussnerstraße 62 in Neu-Isenburg. The company describes itself as having provided reliable energy, water, mobility and leisure services in Neu-Isenburg for more than 125 years, and it employs roughly 88 people. Its service portfolio spans the classic municipal utility functions: electricity and gas supply with associated metering and grid infrastructure, water supply, and the operation of local bus routes. In addition, swni runs the Waldschwimmbad, the town's outdoor swimming pool, which also hosts sauna events and community activities. On the customer side, swni offers tariff calculators, online relocation services for electricity and gas, a customer loyalty card called isyTreue that provides discounts such as 20% off admission to the Waldschwimmbad, and photovoltaic solutions ranging from large rooftop systems to small balcony power plants. The company also maintains a drinking water information service, the Trinkwasser-Ampel, which reports on the local drinking water situation. As a municipal utility, swni is closely tied to the town of Neu-Isenburg and positions itself as a local, approachable employer and service provider. Its bus operations have historically included lines such as OF-51, OF-52 (an on-demand AST service) and OF-53, connecting districts such as Gravenbruch, the Isenburgzentrum, the railway station and Zeppelinheim. The company's activities are documented in its own press archive and on its website, which lists current news, job openings and certificates.

Stadtwerke Neu-Isenburg GmbH (swni) is the municipal utility of Neu-Isenburg, a town in the German state of Hesse. According to its own careers page, the company has been providing reliable energy, water, mobility and leisure services in Neu-Isenburg for more than 125 years, which places its origins in the late 19th or early 20th century, although the exact founding year is not stated in the available sources. As a kommunales Unternehmen, it is owned by the town and operates under a public-service mandate. Over time, swni has developed into a multi-utility provider. Its core business is the supply of electricity, natural gas and drinking water to households and businesses in Neu-Isenburg. The company maintains its own distribution networks; data published for 2011 show an electricity network of about 116 km with 24,117 meters, a gas network of about 98.3 km with 5,701 meters, and a water network of about 118.5 km with 5,475 water meters. In that year, electricity sales amounted to roughly 176.7 million kWh, gas sales to 287 million kWh, and water sales to 2.2 million cubic metres. Beyond energy and water, swni operates public transport and leisure facilities. Historically it ran several local bus lines, including OF-51 (Gravenbruch – Isenburgzentrum – Bahnhof Ostseite – Zeppelinheim), OF-52 (an on-demand AST service linking Waldfriedhof, Isenburgzentrum and the tram), and OF-53 (Bahnhof Westseite – Gewerbegebiet Süd – Bahnhof Westseite). It also operates the Waldschwimmbad, the town's outdoor swimming pool, which recorded 84,262 visitors in 2011, alongside an indoor pool with 41,404 visitors. The Waldschwimmbad remains a focal point of community life, hosting sauna events, a dog-swimming day and, in 2026, a three-day anniversary weekend celebrating its 100th anniversary. In recent years, swni has expanded its service offering to include photovoltaic solutions for homes, from large rooftop installations to small balcony power plants, and digital customer services such as online tariff calculators and relocation tools. It also introduced the isyTreue customer loyalty card, which offers discounts such as 20% off admission to the Waldschwimmbad. The company communicates with residents through its website, press releases and a customer magazine, and it employs around 88 people. Its managing director is Kirk Reineke, with Hans-Ulrich Kimpel serving as head of sales and energy trading and as authorised signatory (Prokurist).

• 2026

  Waldschwimmbad celebrates its 100th anniversary with a three-day anniversary weekend.

• 2011

  Published operational data: electricity network 116 km, gas network 98.3 km, water network 118.5 km; Waldschwimmbad recorded 84,262 visitors.

• Company founded; sources indicate over 125 years of service in Neu-Isenburg.

Local municipal multi-utility provider combining tradition with innovation, serving Neu-Isenburg with energy, water, mobility and leisure services.

• Electricity supply

  Supply of electricity to households and businesses in Neu-Isenburg.

• Natural gas supply

  Supply of natural gas to households and businesses.

• Drinking water supply

  Supply of drinking water, with a public Trinkwasser-Ampel information service.

• Public bus transport

  Operation of local bus lines such as OF-51, OF-52 and OF-53.

• Waldschwimmbad outdoor pool and sauna

  Leisure facility with outdoor pool, sauna events and community activities.

• Photovoltaic solutions

  Solar solutions from large rooftop systems to small balcony power plants.

• isyTreue customer card

  Loyalty card offering discounts such as 20% off Waldschwimmbad admission.

1. 1Schön, dass Sie da sind - Ihre Stadtwerke Neu-Isenburgswni.de
2. 2Stadtwerke Neu-Isenburg - Ihre Stadtwerkeswni.de
3. 3Stadtwerke Neu-Isenburg - Presseswni.de
4. 4Stadtwerke Neu-Isenburg - Karriereswni.de
5. 5Stadtwerke Neu-Isenburgwikidata.org
6. 6Stadtwerke Neu-Isenburgde.wikipedia.org