State-owned power company to build 800MWh BESS in Poland

LinkedIn
Twitter
Reddit
Facebook
Email

State-owned power company PGE Group has obtained regulatory approval to build a 200MW/820MWh battery energy storage system (BESS) in Poland.

The project, called CHEST (Commercial Hybrid Energy Storage), will target a capacity of no less than 200MW and a power output of 820MWh, making it one of the largest in Europe, PGE Group said. It will use lithium-ion batteries.

This article requires Premium SubscriptionBasic (FREE) Subscription

Enjoy 12 months of exclusive analysis

  • Regular insight and analysis of the industry’s biggest developments
  • In-depth interviews with the industry’s leading figures
  • Annual digital subscription to the PV Tech Power journal
  • Discounts on Solar Media’s portfolio of events, in-person and virtual

Or continue reading this article for free

So far this year, the project has obtained a Decision on Environmental Conditions, the first promise of a concession for electricity storage, and the first grid connection permits, which the company said were crucial milestones in its development. PGE Group CEO Wojciech Dabrowski indicated the aim is to have the project completed by 2030.

He added: “The energy stores (storage) will ensure safe system integration of new renewable energy sources, will contribute to stabilisation of the power system and will improve the country’s energy security.”

The project will integrate with the existing 716MW/3600MWh pumped hydro energy storage (PHES) plant at Żarnowiec which together will smooth out intermittent generation of nearby wind farms (illustrated in PGE Group’s map above). PGE Group has permission to build 3.5GW of wind near the two sites.

The company, which is stock-quoted but majority-owned by the Polish state, also said the project would help the competitiveness of energy markets and the planned synchronisation of the Lithuanian, Latvian and Estonian power systems with the system of continental Europe.

This is being done through the Harmony Link project, an interconnector using a 300km-long cable between Poland and Lithuania. Although the project predates the Russian invasion of Ukraine, its aim is to allow the Baltic states to transition themselves away from the IPS/UPS system which is centrally controlled by Russia.

The launch of the BESS project may have been made possible by recent regulatory and legal changes enacted by the Polish Parliament around the definition of energy storage, a move covered by Energy-Storage.news at the time.

Another notable energy storage project in Poland is gigafactory company Northvolt’s energy storage system (ESS) assembly and production facility, which recently bagged a share of €1.8 billion in EU funding.

24 February 2026
InterContinental London - The O2, London, UK
This isn’t just another summit – it’s our biggest and most exhilarating Summit yet! Picture this: immersive workshop spaces where ideas come to life, dedicated industry working groups igniting innovation, live podcasts sparking lively discussions, hard-hitting keynotes that will leave you inspired, and an abundance of networking opportunities that will take your connections to new heights!

Read Next

July 11, 2025
Allegro Energy, an Australian-based developer of water-based redox flow battery energy storage solutions, has claimed its microemulsion flow battery (MeFB) could be tailored to support the “exponential growth” of data centres.
July 10, 2025
Australia’s DCCEEW has announced plans to streamline the Capacity Investment Scheme (CIS) by transitioning to a one-stage process.
July 9, 2025
A subsidiary of Turkish conglomerate Güri̇ş Group has signed an EPC contract for a 98.6MW/196.4MWh project in Romania with local firm Simtel.
July 9, 2025
Australian renewables developer Edify Energy has submitted plans for a 2,400MWh solar-plus-storage project to Australia’s Environment Protection and Biodiversity Conservation (EPBC) Act.
Premium
July 8, 2025
ESN Premium speaks with Sahand Karimi, co-founder and CEO of Australian AI-driven energy management company OptiGrid, on the new FPP reform.

Most Popular

Email Newsletter