Rolls-Royce Clinches its Largest Battery Storage Deal of 582 MWh Project in Lithuania

Lithuania’s Ignitis Group has awarded Rolls-Royce Power Systems its largest-ever battery energy storage contract, selecting the mtu EnergyPack solution for three major projects totalling 291 MW/582 MWh. 

The advanced storage systems, set to be operational from 2027, will support Lithuania’s green energy expansion and reinforce grid stability as the country integrates more renewables into its power mix, the company said.

Project Scope and Sites

The BESS order covers installations at three critical locations, including the Kelmė and Mažeikiai wind farms, and the Kruonis pumped storage power plant. 

The EUR 130 million investment marks one of Lithuania’s first utility-scale battery storage undertakings. It will benefit these sites by helping them absorb surplus renewable electricity and release it when demand surges.

A key feature of the solution is Rolls-Royce’s in-house-developed mtu EnergetIQ Manager, an intelligent control system that orchestrates the operation of all three battery parks and their associated wind farms. This platform enables real-time balancing of generation and storage, fast frequency response, black-start capability, and voltage regulation, crucial for handling the increasing share of intermittent renewables.

“Battery storage systems are a central component of our strategy. We are proud that our technology is helping to ensure a secure power supply in Lithuania,” said Andreas Görtz, President of Sustainable and Mobile Power Solutions at Rolls-Royce Power Systems.

Impact on Lithuania’s Grid and Green Transition

Ignitis Group CEO Darius Maikštėnas highlighted that the rapid growth in renewable power generation makes battery systems essential for ensuring reliability, network flexibility, and cost stability. The BESS fleet will help integrate more renewables, minimise curtailment, and reduce power price volatility. 

For Lithuania, which is accelerating its decoupling from the Russian energy grid and aims for 100 percent clean energy by 2030, these batteries are pivotal for energy security and market flexibility.

With this contract, Rolls-Royce Power Systems surpasses 200 MTU battery storage projects delivered worldwide.