Eurus Energy proposes solar-plus-1.1 GWh battery storage project in Chile

Japanese developer Eurus Energy has submitted its Radal Solar project for environmental assessment in Chile, proposing a $500 million facility that pairs a 280 MW solar farm with a 1,101 MWh battery storage system. The project is planned for a site spanning the Valparaíso and Metropolitan regions.

The facility’s design specifies a 280 MWp solar park utilizing over 420,000 bifacial modules mounted on single-axis trackers. This will be integrated with a 200 MW / 1,101 MWh battery energy storage system, providing over five hours of storage duration. According to the documents, the BESS system will have a total installed capacity of 200 MW and will consist of 400 SG52752UX (Sungrow) or similar 2,752 kWh battery modules, with a total of 1,101 MWh, with a storage capacity of 5 hours, and 40 5,000 kVA transformer stations.

The BESS system will allow energy to be stored for delivery at times determined by the electricity authority or when the plant is not generating energy, following the trend of new solar projects in Chile that integrate storage to optimize energy management and dispatch.

Power from the facility will be sent to the grid through an onsite step-up substation, which will increase the voltage from 33 kV to 220 kV for transmission. A new 29.5km high voltage power line will connect the plant to Chile’s National Electrical System at the Alto Melipilla substation.

If approved, construction is scheduled to begin in early 2027. The project is expected to create between 400 and 600 jobs during its construction phase and is designed for an operational life of 40 years.