Trina Storage delivers multi-gigawatt-hour battery storage in the Baltics

Trina Storage has entered into a partnership with the Lithuanian green energy developer Stiemo. The two partners plan to jointly implement several storage projects throughout the Baltics. In total, several gigawatt hours of storage capacity are expected to be built within the next two to three years, according to Trina Storage.

180 megawatt hours planned for launch

To kick off the partnership, the two companies have agreed to build three battery plants in Lithuania. Each of the three systems will have a capacity of 30 megawatts and a storage volume of 60 megawatt hours. This will create an initial storage portfolio of 90 megawatts with a capacity of 180 megawatt hours, which Stiemo will operate, over the next few months.

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Well distributed across the country

The facilities are well distributed across the country. One of the storage facilities will be built in Anyksciai, in eastern Lithuania. A second facility is being built in Skuodas, near the Baltic Sea coast. The third battery power plant will be built in Jonava in the southeast of the country. Construction will begin in the next few weeks. Trina Storage will deliver the battery storage facilities in December 2025, and the facility is scheduled to go into operation in summer 2026.

Eastern Europe is a growing storage market

The partnership is of strategic importance to Trina Storage. "Eastern Europe is a rapidly developing market for large-scale storage facilities," says Gabriele Buccini, Head of Trina Storage Europe. "The three initial projects are just the beginning of a broader strategy to build flexible gigawatt-hour storage capacity throughout the Baltic States and other countries in the region," she adds.

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Medium voltage connection integrated

The projects will feature Elementa 2 batteries from Trina Storage. These integrated systems include not only the batteries themselves, but also a medium-voltage connection and a control system, as well as the option of grid integration. The new storage systems will contribute to stabilizing the Lithuanian grid, into which an increasing number of wind and solar power plants are volatilely feeding their electricity.

More flexibility is needed

Giedrius Lynykas, Managing Director of Stiemo, points to the impressive change and growth of the electricity system and its transformation in the Baltic States, especially in Lithuania. This requires more flexibility that can be implemented quickly and operated reliably. Stiemo plans to expand its service offerings in this regard.

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More locations sought

The partners are currently searching for additional locations for additional storage systems. The targeted capacity of several gigawatt hours is to be built over the next three to five years. This includes not only large-scale storage systems that support the grid as stand-alone systems, but also storage systems that are built in combination with wind power and solar systems or integrated into existing green power plants. This will enable these systems to better respond to grid requirements and regulatory requirements – for example, in the context of tenders.