抄録
To utilize solar energy, an estimation method of daily insolation irradiance on the tilt surface was derived from daily global insolation. In order to satisfy this requirement, comparison with calculated tilt insolation by a lot of meteorological data with calculated tilt insolation by METPV-2 data at twelve locations. By using this method, the daily tilt insolations were estimated accurately. Locations for the calculation are as follows: Sapporo, Nemuro, Akita, Miyako, Matsumoto, Wajima, Shionomisaki, Yonago, Shimizu, Fukuoka, Kagoshima and Naha. Consequently, using daily global insolation data, an estimation equation for the daily tilt insolation can be obtained.
