CATL has signed a 2 GWh agreement with Solarpro, a leading renewable energy company in Central and Eastern Europe, to deploy its Tener Sodium energy storage system. The two companies plan to jointly develop the first large-scale sodium-ion battery energy storage project in the region later this year.

The project will use CATL’s Tener Sodium energy storage system, which offers a cycle life of up to 15,000 cycles and is designed to operate reliably for 25 to 30 years. The system also delivers strong low-temperature performance, retaining 92% of its capacity at -20°C, making it well suited to the harsh winter conditions in Eastern European countries such as Lithuania, where temperatures can fall to -15°C to -20°C.

CATL and Solarpro have maintained a long-term strategic partnership since their first collaboration in 2024, when they deployed a 150 MWh EnerC+ liquid-cooled battery energy storage system in Bulgaria. In May this year, the companies connected a 602 MWh Tener lithium battery energy storage system to Bulgaria’s power grid, increasing the country’s total energy storage capacity by approximately 10%. [TechNode Reporting]