Nidec Conversion part of one of Lithuania’s Largest BESS Project with advanced Power Unit Technology in partnership with Rolls-Royce
*image source: Rolls-Royce Power Systems
Nidec Conversion is supporting Rolls-Royce on Ignitis Group’s 291 MW / 582 MWh BESS initiative across three strategic sites, one of the largest in the Baltic region that should be fully operational by 2027
The Power Unit is a high-performance system, that integrates a PCS cabinet, a transformer and a Medium Voltage switchgear
This partnership will strengthen Lithuania’s energy security and renewable integration by 2027
Milan/London, February 11th, 2026 – Nidec Conversion, a global actor in Power Solutions, industrial automation, Power Quality, and Energy Storage Systems, and a market leader for renewable energy technologies is proud to announce its contribution to one of the most significant energy storage initiatives in the Baltic region: Ignitis Group’s Battery Energy Storage System (BESS) project in Lithuania, totaling 291 MW / 582 MWh across three strategic sites.
The project, led by Ignitis Group and integrated by Rolls-Royce’s Power Systems division, represents a major milestone in Lithuania’s energy transition. As part of the program, Nidec Conversion has supplied its state-of-the-art Power Unit, a compact, high-performance system now part of the safe and efficient architecture of these BESS facilities.
Ignitis Group, a renewables-focused integrated utility and the largest listed company in the Baltic States, selected Rolls-Royce to deliver mtu EnergyPack battery storage systems. The order – Rolls-Royce’s largest (for BESS) to date – covers systems with a total storage capacity of 582 MWh and output of 291 MW, scheduled to support Lithuania’s power grid from 2027 onwards. The storage systems will be installed at three locations: Kelmė and Mažeikiai wind farms, and near the Kruonis Pumped Storage Hydroelectric Power Plant. By storing surplus electricity from renewable sources and releasing it during peak demand, the BESS facilities will help balance the grid, facilitate the integration of more green capacities, and strengthen energy security across the region.
Nidec Conversion’s Power Unit contributes significantly to this solution, also, thanks to its structure. It is, in fact, composed by a skid-mounted system that integrates a Power Conversion System (PCS) cabinet, a transformer, and Medium Voltage (MV) switchgear. This all-in-one design ensures reliable, flexible, and efficient integration for utility-scale projects. Compact in size, the Power Unit offers high power density and low noise levels, making it suitable for space-constrained or sensitive environments. Backed by decades of expertise in power electronics, it delivers proven reliability and cutting-edge technology tailored to the most demanding grid applications.
“We are honored to support one of the largest BESS projects in Lithuania with our advanced Power Unit technology,” said Dominique Llonch, President of Nidec Energy and President and CEO of Nidec Conversion. “This collaboration with Rolls-Royce Power Systems demonstrates our commitment to enabling a secure, sustainable, and resilient energy system, while reinforcing our role as a trusted partner in the global energy transition.”
The BESS systems are expected to be fully operational by 2027, marking a critical step in strengthening Lithuania’s renewable energy infrastructure and ensuring a stable, flexible, and future-ready power grid.
Nidec Conversion
As part of the Nidec Motion & Energy Business Unit, Nidec Conversion provides Energy Storage Products (BESS Power Units), as well as complete, tailor-made electrical systems for energy efficiency across all industries. Its target markets include petrochemicals, traditional and renewable energy, e-mobility, steel, marine, and industrial automation. The multinational company specializes in heavy-duty applications, with electric motors and generators, power electronic converters and inverters, automation and software for industrial processes, as well as the revamping of power plants and hydroelectric generators. Nidec Conversion provides charging infrastructures for electric vehicles (EVCI); offering optimized motor control technologies and developing customized automation solutions, tailored to the specific needs of its clients.
In terms of Power Quality Systems, Nidec Conversion leverages STATCOM, SVC, and reactive-power compensation technologies to stabilize voltage and mitigate grid disturbances, integrating seamlessly into utility and industrial networks worldwide for grid support and renewable energy integration. In the marine sector, Nidec Conversion is one of the world’s leading suppliers, delivering a wide range of solutions for offshore applications, mega yachts, shore-to-ship power, navy and research vessels, cruise ships (over 2,500 MW installed onboard), special vessels, and ferries.
In 2025, Nidec Conversion published its first ESG Improvement Plan dedicated to sustainability, in which the company’s concrete actions in the environmental, social, and governance areas are brought together under the concept Powering the Change, Driving Sustainability. The three-year Sustainability Plan (2025–2028) is structured around 8 United Nations Sustainable Development Goals (SDGs) to be pursued through 48 strategic actions across the areas of Environment, Social, and Governance.
For further information visit the website: www.nidec-conversion.com
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