Cyclone Dagmar of 2011 and its impacts in Finland

The increasing frequency of the natural disasters during the last decade and their severe impacts on the electric power arose debate and led questioning the electric power reliability of the European countries. The Cyclone Dagmar of 2011, or locally known as Tapani storm, was a shocking event for all Scandinavia in terms of its impacts on the electricity supply and the related services. Although Finland had been thought to be enjoying highly reliable electric power, after 2011 the authorities started to go through radical changes to improve the supply security of the country and the Finnish Ministry of Employment and the Economy introduced a 15-year plan to avoid such undesirable outcomes of the possible natural disasters that might occur in the future. This paper summarizes and presents the events that were caused by the storm, and the storm recovery efforts spent after the incident.