PKP Energetyka has opened the largest traction energy storage facility in Europe, which will ensure the supply of electricity to Poland on the railways.

energy storage for railways
PKP Energetyka

The project was implemented by the consortium My-Soft and Impact Clean Power Technology, as well as Elester-PKP and Zielona Góra University. The investments amounted to 20 million zlotys (4.4 million euros), 8.8 million zlotys (1.94 million euros)  of which is European co-financing, reports the railway magazine Railway Supply with reference to

The facility will serve for the next 15 years and will also become a benchmark for the development of such facilities throughout Poland. This is the first of about 300 energy banks planned for railways in Poland. Each of them will be part of a wider energy system that also includes a traction substation and ultimately a photovoltaic installation for other renewable energy sources. The storage is fully automated, which allows you to remotely monitor and adjust parameters depending on your needs.

This energy storage will improve the safety and quality of energy supply to railways, balance the power consumed by the Polish national energy system and enable more efficient use of renewable energy sources under the Green Rail program.

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The storage facility with a capacity of 5.5 MW and a useful capacity of 1.2 MWh is the largest storage of energy for traction purposes in Europe. The four containers use lithium-ion batteries, manufactured using NMC technology, which takes into account the specifics of rail transport, allowing the storage facility to charge slowly and quickly release stored energy as the train passes.

The complex is capable of powering even the fastest trains, including the Pendolino, in a few seconds. According to PKP Energetyka’s estimates, the capacity of the railway system will increase by 42% in the next 10 years to 6.8 GW.

“Energy storage technology has twofold benefits: it stabilizes the grid by increasing the amount of energy distributed without the need for increased bandwidth. As part of the Green Rail program, we need to ensure a stable energy supply even in cloudy or calm weather, ”said Leszek Hołda, board member of PKP Energetyka.


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