抄録
Recently, using wind power, especilly in Europe, is remarkably increasing and this shows wind turbine is reaching the stage of real use. Under this situation, to forecast the future of energy system, the authors use the energy simulation model of New Earth 21,in which the present wind power situation and introduction of wind turbines to offshore are taken into account. By using this simulation code, the wind power is predicted to be so popular in 50 years that the new kind of wind turbine with vernacular design is proposed.