Abstract:

Solar energy resource is traditionally evaluated directly to get its theoretical reserves from solar radiation data，with little regards for its specific use scenarios.Aimed at the need of managing traditional energy using risk in this study,based on the longterm observation data of the sun and combined with the geographical distribution of solar radiation and the use of solar energy situation,a model for evaluating roofmounted available solar energy resource was built by choosing the suitable roofmounted PV system which is a betterdeveloped technique and easily connected to the grid as the evaluating basis.This model connected solar natural attributes to its social ones by means of GIS spatial analysis function.Then local available solar energy resource in Jiangsu Province was evaluated with the model and the result was verified.Analysis showed that compared with the simple assessment of solar energy theoretical potential,the result of assessing the roofmounted available solar energy resources with this model was more reliable according to the actual situation of using solar energy，and could be directly used in managing traditional energy risk and making energy development plans.〖