The significance of the continuous electric power service is getting higher and higher. Countries are developing policies to strengthen their electric power system infrastructure to sustain an acceptable level of supply security. The European electric power policies are guided by the climate and energy goals of the European Union. Climate change related extreme weather events pose a great threat against the power reliability. In terms of natural disasters and their impacts on electricity, Finland is among one of the most affected countries in Europe. This paper presents a detailed electric power reliability analysis for Finnish power system. The increasing influence of natural disasters on supply security is highlighted. The future plans of the Finnish authorities to further harden the power infrastructure and the policy changes to push the network operators to increase the customer satisfaction are also mentioned.