Abstract:Based on the characteristics of solar parabolic trough thermal power generation technology, this paper introduced this technology with a molten salt thermal storage system on it. And it was considered that collector area and thermal storage time are the key influence factors to the economy of solar parabolic trough thermal power generation. Taking 50MW installation capacity as a calculation model and according to the solar energy resource condition of a certain area, this paper analyzed the relations of collector area and thermal storage time versus electricity unit price with the optimization goal of minimum electricity unit price, which provided a basis for the engineering optimization design.

Keywords:solar parabolic trough thermal power generation, collector area, thermal storage time, thermal storage capacity