MT Group has secured a $32 million (€27.8m) EPC turnkey contract with Pure Energy Solutions for the delivery of a 35MW/140MWh BESS in Rietavas, Lithuania.
The facility will be directly linked to a 110kV high-voltage substation operated by national Transmission System Operator Litgrid, reinforcing grid resilience and flexibility.
As renewable generation expands across the Baltic region, the Rietavas BESS will provide frequency control and balancing reserves. It is designed to support cross-border integration and enable participation in both Baltic and Nord Pool balancing markets.
“Rietavas BESS highlights MT Group’s commitment to delivering the next generation of smart energy infrastructure,” said Dr Kristina Norvaišienė, Executive Director at MT Group. “Battery energy storage systems are becoming central to the modern power grid ensuring flexibility, supporting renewable generation and enabling a more interconnected Baltic energy market. This project is another step towards building a resilient, future-ready energy system for the region.”
“This project demonstrates how strong local partnerships can accelerate the deployment of modern balancing assets,” added Artūras Jacikas, CEO of Pure Energy Solutions. “Rietavas BESS will set a new benchmark for large-scale storage projects, enhancing grid flexibility and cross-border stability across the Baltic and Nordic electricity markets.”
The scheme adds to MT Group’s portfolio of strategic energy infrastructure, which includes hydrogen projects in Vilnius and Klaipėda, modernisation of the Jauniūnai Gas Compressor Station, EPC works at Brunsbüttel LNG Terminal in Germany, and a CO₂ capture project in Denmark with Ørsted.

