The shutdown comes as much of Finland is facing the coldest temperatures of the winter so far and some 800 households remain without power following a major storm last weekend.
Energy production in the capital would help balance the country’s electricity grid and smooth price fluctuations, according to Olli Sirkka, CEO of Helsinki’s energy firm Helen.
One of the reasons companies are looking to build data centres in Finland is financial. The country had the second-cheapest electricity in Europe last year.