The Kaohsiung Yongan PV Power Plant was built in 2011. It covers a total area of 9.45 hectares, has a PV capacity of 5 MW, and an overall annual power generation of about 6 million kWh. To improve PV power generation efficiency, Delta helped the Kaohsiung Yongan solar power plant build a 1MW/1.1MWh ESS. This ESS has improved PV power generation performance with PV smoothing and frequency regulation while reducing grid stress due to large fluctuations in renewable energy.