Lithuania is pressing ahead with one of the Baltic region’s largest battery energy storage deployments as part of a broader effort to realign its grid architecture around a rising share of variable generation. Led by utility group Ignitis, the programme comprises 291 MW and 582 MWh across three sites and is scheduled to enter full operation by 2027.
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In Lithuania, wind capacity is expanding more rapidly than conventional balancing assets. Given this trajectory, the installations at the Kelmė and Mažeikiai wind farms and near the Kruonis pumped storage facility are designed to provide peak-shaving, balancing and reserve services, adding fast-response flexibility to a power system in transition. Rolls-Royce Power Systems will supply the mtu EnergyPack battery systems in what represents its largest BESS contract to date.
Nidec Conversion is responsible for the project’s power conversion layer, providing integrated modules that combine PCS, transformer and medium-voltage switchgear in a single skid-based configuration. This model of pre-engineered integration is becoming standard practice in utility-scale storage as it streamlines deployment and reduces technical integration challenges on complex sites.
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Lithuania’s rollout mirrors a wider regional transition, with medium-sized European power systems integrating battery assets into grid architecture as standard balancing infrastructure. (TF)
