1. The purpose of this research is to make the map of solar power generation of the whole country to examine the validity of each region in Japan. Then this research calculated effects on an economical and environmental evaluation when solar power generation was introduced in detached houses. 2. By using the system of solar power generation effectively, investigation of the actual condition of the energy consumption and of the actual measurement of electric energy consumption are carried out. The effect of solar power generation are examined by comparing it with the electric energy consumption that was consumed in detached houses. 3.The effects on an economy and environmental evaluation are examined by introducing the detached houses in seven prefectures in Touhoku area of Japan. Finally the validity of the system of solar power generation are examined.
