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ENGIE Acquires 438 MW Battery Energy Storage Project in Poland

· Issued by Engie S.A.

Summary by 6ix AI

ENGIE Zielona Energia, the Polish renewable energy subsidiary of French utility ENGIE, has acquired a special purpose vehicle (a company set up to hold one project) that is developing a 438 MW/876 MWh battery energy storage project in Trebaczew, Dzialoszyn municipality, Poland. MW is megawatts of power and MWh is megawatt-hours of stored energy.

Key details

  • The project was initially developed by Mithra Energy and Futureal Investment Partners, a member of Futureal Group, and will connect directly to the Trebaczew electrical substation.
  • The company says the project is expected to make it easier to move power onto the grid, reduce pressure on local transmission infrastructure and improve the reliability of electricity supply in the region.
  • ENGIE acquired a 250 MW/1,000 MWh battery storage project in Tursk Wielki, in Poland's Swietokrzyskie Voivodeship, from R.Power in June 2026. That project has reached ready-to-build status, with construction expected to begin in early 2027 and commissioning scheduled for the fourth quarter of 2028.
  • In April, ENGIE acquired two battery storage projects in Andalusia, Spain, with a combined capacity of 278 MW/1.1 GWh (gigawatt-hours): a 78 MW/312 MWh project in Alora and a 200 MW/800 MWh project in Tarifa.
  • ENGIE says acquisitions, construction starts and project commissioning in July and August 2026 across Poland, Belgium, Spain, Romania, Portugal, the Netherlands and the U.K. total a combined 1.1 GW (gigawatts)/3.3 GWh. ENGIE says it has 10.7 GW of energy storage capacity operating or under construction globally.

What’s still pending

  • The Trebaczew project is expected to reach ready-to-build status in the fourth quarter of 2026.
  • Commissioning of the Trebaczew project is planned for the first quarter of 2029.

6ix AI wrote this summary from the release below and checked it against the release.

On 6ix: 6ix.com/news/engie-acquires-438-mw-battery-energy-storage-project-in-poland

Watch Engie's latest callEngie (Euronext:ENGI) Q1 2026 Earnings Call · Replay · May 7

ENGIE Zielona Energia, a subsidiary of the French utility company ENGIE that operates as a provider and producer of renewable energy in Poland, has acquired a special purpose vehicle developing a 438 MW/876 MWh battery energy storage project.

The project, located in Trebaczew in Dzialoszyn municipality, was initially developed by Mithra Energy and Futureal Investment Partners, a member of Futureal Group. It is expected to reach ready-to-build status in the fourth quarter of 2026, with commissioning planned for the first quarter of 2029.

The energy storage facility will connect directly to the Trebaczew electrical substation. According to the company, the project is expected to facilitate power evacuation, reduce pressure on local transmission infrastructure, and improve the reliability of electricity supply in the region.

The acquisition follows ENGIE's investment in a 250 MW/1,000 MWh battery storage project in Tursk Wielki in Poland's Swietokrzyskie Voivodeship. ENGIE acquired the project from R.Power in June of this year. The Tursk Wielki project had reached ready-to-build status, with construction expected to begin in early 2027 and commissioning scheduled for the fourth quarter of 2028.

In April, ENGIE acquired two battery energy storage projects in Spain with a combined capacity of 278 MW/1.1 GWh. The acquired projects are located in Andalusia, including a 78 MW/312 MWh project in Alora and a 200 MW/800 MWh project in Tarifa, Spain.

During July and August of this year, the company expanded its European energy storage portfolio through acquisitions, construction starts, and project commissioning in Poland, Belgium, Spain, Romania, Portugal, the Netherlands, and the U.K. According to ENGIE, these projects have a combined capacity of 1.1 GW/3.3 GWh. According to the release, ENGIE has 10.7 GW of energy storage capacity operating or under construction globally.

According to Mercom's recently released 1H 2026 Funding and M&A for Energy Storage report, project acquisition activity accelerated sharply during the first half of 2026, with approximately 14 GW of battery storage capacity changing hands in 63 transactions, compared with 6.1 GW in 31 transactions during the same period in 2025.

Contact:

Corporate Office:

Mercom Capital Group, IIc

4611 Bee Caves Road, Suite 303

Austin, Texas 78746

Tel: +1.512.347.0300

Email: info@mercomcapital.com

(C) 2026 Electronic News Publishing, source ENP Newswire

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