Mälarenergi
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Mälarenergi AB is a city-owned electricity and district heating provider based in Västerås, Sweden. It was previously known as Tekniska verken. As of 2006, it has around 540 employees and three daughter corporations: Elnät AB, Stadsnät AB och Vattenkraft AB.
The company owns and supplies electricity and district heating nets, with an annual income of 2.2 billion SEK, as of 2006.