Trina Storage, the energy storage business of Trinasolar, has signed an agreement with OX2 to supply an integrated battery energy storage system (BESS) for the Fageråsen project in Sweden, strengthening the companies’ long-term partnership in the Nordic energy storage market. The 50MW/209MWh project will mark the first European deployment of Trina Storage’s latest DC+AC integrated solution, Elementa + Electra 13.8MVA/25MWh, designed for utility-scale 4-hour energy storage applications. The solution combines the Elementa 3 battery storage system with the newly launched Electra 13.8 AC unit platform, delivering a streamlined architecture from battery to grid.
The agreement represents the third utility-scale battery storage project awarded by OX2 to Trina Storage, building on the successful collaboration at the Kannisto and Korkeamaa projects in Finland. Together, the three projects represent approximately 680MWh of battery energy storage capacity, underscoring the growing relationship between the two companies and their shared commitment to supporting the Nordic energy transition.
Located adjacent to the Fageråsen wind farm in Malung-Sälen municipality, the project will support greater grid flexibility while enabling more efficient integration of renewable energy into Sweden’s electricity system.
Under the agreement, Trina Storage will provide its integrated storage solution, Elementa + Electra 13.8MVA/50MWh, together with a power plant controller (PPC), commissioning services and a long-term service agreement.
Deliveries are scheduled to begin in the first quarter of 2027, supporting OX2’s planned commissioning of the project by the end of 2027.
Elementa 3 delivers up to 6.25MWh of storage capacity with advanced liquid cooling, intelligent thermal management and multi-layer safety architecture, while Electra 13.8 integrates the PCS, medium-voltage equipment and an integrated auxiliary transformer into a factory-integrated skid, reducing on-site installation complexity and accelerating project delivery.
“Being selected by OX2 for yet another utility-scale battery storage project is a strong endorsement of the partnership we have built together over the past year,” said Gabriele Buccini, Head of Trina Storage Europe at Trinasolar. “Fageråsen is an important milestone not only because it further strengthens our collaboration with OX2, but also because it brings the first European deployment of our integrated Elementa 3 and Electra 13.8 solution. These projects demonstrate how trusted partnerships and integrated technology can accelerate the deployment of reliable, utility-scale energy storage across Europe.”
