About Helen

― Helen Oy

At Helen we produce the world´s best city energy. In Helsinki it is produced in three power plants, over ten heating plants, two underground cooling centres and in the largest heat pump plant in the world.

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I insamlingen Energiakriisi 2022-2023

Ursprungskälla: https://www.youtube.com/watch?v=gm3_Hm4Kmog

Sidans beskrivning är från den ursprungliga källan (YouTube).