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The authors are interested in using wind energy in a cold northern district. For several years, the wind condition above the roof of ANCT (Akita National College of Technology) has been investigated, and windmills of small size constructed for trial have been put into operation in actual running. Akita Prefecture is situated in a latitude band where migratory low and high atmospheric pressure passes in groups except during the summertime and it is especially under great influence of continental high atmospheric pressure. Consequently in winter we have heavy snow and strong winds from the west. In Akita Prefecture, which faces the Japan Sea, we have stronger winds than in other prefectures, especially those on the Pacific Ocean side. Therefore, the authors have had a great desire to use wind energy. In October 1982,the authors had an opportunity to install a windmill generator of propeller type with an output of 1 kW at a velocity of 7m/s. This windmill generator is under operation in actual running at present. In this paper the authors report some results of the operation and also state matters to be considered in installing a windmill in the polar regions. The main contents are as follows : (1) Operation in practical running for confirmation of safety of the windmill generator. (2) Influence of life-environment. (3) Utilization of wind energy for melting snow on a galvanized sheet roof