A Revaluation of Domestic Solar Insolation Data by Field Measurement

실측(實測)에 의한 국내(國內) 일사량자원(日射量資源)의 재평가(再評價)

Since the solar radiation is the main input for sizing any solar system, it will be necessary to understand and evaluate the insolation data. The Korea Institute of Energy and Resources (KIER) has began collecting horizontal insolation data since May, 1982 at 15 different locations. Because of a poor reliability of existing data, KIER's new data will be extensively used by the solar system users as well as by research institutes. Among some significant results, we obtained the good results more than we had expected, it is very encouraging that the mean value of Korea's solar radiation is increased by more than 30%.