Greenvolt Opens a 200 MW, 800 MWh Battery at Turośń Kościelna in Poland
Greenvolt Power inaugurated a 200 MW / 800 MWh battery storage system at Turośń Kościelna in north-eastern Poland on 30 July. The four-hour lithium iron phosphate system is connected to the 110 kV transmission grid and will have a capacity market contract from 2028.
What was switched on
The site is in Podlaskie Voivodeship, near Białystok, about 200 km from Warsaw, according to Energy-Storage.News, which says the inauguration took place on 30 July and was announced the next day. BYD supplied 196 battery enclosures, and P&Q was the general contractor.
Energy Global adds that a matching project at Ełk in Warmia-Masuria is scheduled for commercial operation in the fourth quarter of 2026. Together the two would provide 400 MW and 1.6 GWh.
How it will be paid
From 2028 the battery has a 17-year capacity market contract with a 170 MW obligation, about 85% of its power rating. It is part of a 1.2 GW capacity market win by Greenvolt in Poland. Entrix, an AI-based optimiser, will bid the battery into frequency response, balancing, day-ahead and intraday markets, with Greenvolt as owner. We could not confirm the project cost.
Why it matters for household batteries
A long capacity market contract gives a large battery predictable income, which is a different business model from a household battery that saves its owner money on bills. Both, however, respond to the same conditions on the grid, such as cheap midday solar power and tighter evening supply.
None of this means a home battery will pay back faster in Poland: household returns depend on tariffs, export rules and installation costs that differ from market to market. For the rules and incentives that apply to homes there, read our Poland country guide. For another recent example of grid-scale storage in the region, see Estonia's Hertz 2 system.
Sources
- Energy-Storage.News: Greenvolt inaugurates 200MW / 800MWh capacity market-contracted BESS in Poland
- Energy Global: Greenvolt Power inaugurates 200 MW BESS facility in Poland
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