Journal of the Korean Solar Energy Society ISSN:1598-6411(Print) 2508-3562(Online) 한국태양에너지학회 논문집

The government recently announced various policies to foster RE100 industrial complexes, with the goal of building more than 6 GW of solar power generation systems in these complexes by 2030. Industrial complex solar power generation utilizes idle spaces within industrial complexes, such as factory rooftops and parking lots, for installation of solar power systems. This study analyzed the performance of nine 3 MW solar power plants installed in the Cheongju Industrial Complex as part of the energy self-sufficiency infrastructure development project. All of the plants were installed with bifacial solar modules and exhibited high PR values. A one-year PR analysis confirmed stable operation. Differences in PR values were due to the bifacial gain associated with backlighting. Closely positioned solar panels on east-west-facing factory roofs offer the advantages of increased installation capacity, reduced partial shading, and peak dispersion to mitigate duck curves. From the perspective of utilizing solar power systems, the need to address grid strain and resident acceptance are driving growing interest in industrial complex solar power. However, it is necessary to reflect certain technologies and policies, such as various standard models to increase the participation of factory owners, an east-west power system to resolve future ESS-linked duck curves, and safety management measures for factory roof leaks and fires.