An Assessment of the Optimal Capacity and an Economic Evaluation of a Sustainable Photovoltaic Energy System in Korea

The purpose of this study is to conduct an economic evaluation a photovoltaic-energy storage system (PV–ESS system) based on the power generation performance data photovoltaic operations in Korea, and calculate optimal capacity energy system. In study, PV systems Jeju-do Gyeongsangnam-do were targeted, area assumed be installed general site, research was conducted by applying weights facility’s capacity. All analyses using actual amount Korea exchange (KPX) transactions 2019. order conditioning (PCS) battery (BESS) according global horizontal irradiation (GHI), with minimum/maximum/central value selected comparing solar radiation before plane for three years (2017–2019) location where installed. As result analysis, Jeju-do, if renewable certificate(REC) weight decreased 3.4 when there no change cost installing BESS PCS, it more economical link than operation alone. Gyeongsangnam-do, revealed that REC reduced 3.4, likely