ENGIE is taking over one of the largest energy‑storage projects in Poland. A 250 MW installation will be built.
ENGIE strengthens its position in Poland’s energy‑storage market. The company has finalized the purchase from R.Power of a large‑scale energy‑storage project in Turek Wielki (Świętokrzyskie Voivodeship), which—once operational—will be among the largest facilities of its kind in the country. The investment is expected to play a significant role in stabilizing the national power system and increasing the ability to integrate renewable energy sources.
A battery energy‑storage system (BESS) with a capacity of 250 MW and 1000 MWh is planned. The project has already reached the ready‑to‑build stage, meaning that the key design and preparatory work has been completed. Construction is scheduled to begin in early 2027, with commissioning planned for the fourth quarter of 2028.
Strategic location for the national grid
One of the project’s major advantages is its location. The energy‑storage facility will be connected to the Połaniec substation, one of the most important transmission hubs in southeastern Poland.
This placement will enable more efficient management of energy flows, relieve the transmission network, and enhance the security of the National Power System—especially during periods of high renewable‑energy production.
A response to the growing role of renewables
The rapid development of solar and wind power increasingly leads to situations where energy production exceeds current demand. In such moments, the system operator is forced to curtail the output of some renewable installations.
Energy‑storage facilities are intended to reduce the scale of this problem. Their role is to store surplus energy during periods of high production and feed it back into the grid when demand rises. This increases the flexibility of the power system and improves the utilization of renewable energy.
The planned installation in Turek Wielki—with its 1000 MWh capacity—will become one of the key assets supporting the balancing of the national grid.
ENGIE expands its portfolio in Poland
The acquisition aligns with ENGIE’s long‑term strategy of developing renewable energy sources and infrastructure that enhances system flexibility. The company emphasizes that building new wind and solar farms alone is not enough for an effective energy transition—investments in energy storage are equally essential.
The new storage facility will support both ENGIE’s own asset portfolio management and provide services that stabilize the national power grid.
R.Power hands over a ready project
Until now, the project was developed by R.Power, which prepared it to the stage enabling construction. The company is currently building one of the largest portfolios of energy‑storage projects in Europe and is focused on further expansion in this segment.
The transaction between ENGIE and R.Power highlights the growing importance of large‑scale energy storage in Poland’s energy transition. With the rapid increase in renewable capacity, such investments are becoming a necessary element of a modern and stable power system.
Final preparations before construction
The project already has secured grid‑connection conditions, and the last administrative and environmental decisions are being finalized. If the schedule is maintained, construction will begin in 2027.
Once operational, the Turek Wielki storage facility will be among the largest battery energy‑storage systems in Poland and will become a key piece of infrastructure supporting the further development of renewable energy and the security of the national power system.