Greenvolt Power has formally inaugurated a large-scale battery energy storage system in northeastern Poland, marking a significant milestone for grid-scale storage development in the country.

Facility Details

The project, located near Białystok in the village of Turośń Kościelna, carries a rated capacity of 200 MW and 800 MWh of energy storage. The facility now enters commercial service as one of the more substantial standalone battery installations in the Central and Eastern European market.

Capacity Market Participation

The Turośń Kościelna battery system holds a long-term capacity market contract running for 17 years, with participation set to begin in 2028. Poland's capacity market is designed to ensure sufficient dispatchable power resources are available to the national grid, and battery storage assets have increasingly been positioned to fulfill obligations within that framework alongside conventional generation.

Optimisation and Operations

Energy trader Entrix will be responsible for optimising the facility's market operations. Battery storage optimisation firms handle the commercial dispatch of assets across various revenue streams — including ancillary services, intraday and day-ahead energy markets, and capacity obligations — aiming to maximise returns over the project's operational life.

Context

The inauguration by Greenvolt Power, the renewable energy and storage subsidiary active across European markets, reflects broader momentum in utility-scale battery deployment across Poland and the wider region as grid operators and policymakers work to integrate growing shares of variable renewable generation while maintaining system reliability.