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SUN – Stadtwerke Union Nordhessen

SUN – Stadtwerke Union Nordhessen is an association of seven municipal utilities in the North Hesse region of Germany working on environmentally friendly, regional and affordable energy supply.

Last updated September 16, 2026

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Overview

The Stadtwerke Union Nordhessen (SUN) is a union of seven municipal utilities (Stadtwerke) in the North Hesse region. According to its website, it works toward environmentally friendly, regional and affordable energy supply, and develops joint renewable-energy solutions with its partners, municipalities, energy cooperatives and local research experts. Since its founding in 2011, SUN states that the renewable power plants already built and planned up to 2019 generate as much clean electricity as the households in the entire supply area of the SUN municipal utilities consume. Its first joint project, in 2012, involved more than 30 charging points with uniform charging infrastructure and a shared charging card, making SUN one of the pioneers of electric mobility in the region.

History

The Stadtwerke Union Nordhessen (SUN) is a union of seven municipal utilities in the North Hesse region. Its seven municipal-utility partners come from the region and identify with it; they are independent and locally rooted. SUN develops environmentally friendly solutions for the region's future energy supply by bundling its competencies, joining with municipal actors, involving energy cooperatives and networking with local experts from science and research. Since its founding in 2011, SUN states that the renewable power plants already built and planned up to 2019 generate as much clean electricity as the households in the entire supply area of the SUN municipal utilities consume. In its first joint project, in 2012, more than 30 charging points with uniform charging infrastructure were set up via a shared charging card, making SUN one of the pioneers of electric mobility in the region.

Products and positioning

Environmentally friendly, regional and affordable energy supply; joint renewable-energy and electric-mobility projects in North Hesse.

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