Engie starts building 800MWh BESS in Belgium, one of Europe’s largest

LinkedIn
Twitter
Reddit
Facebook
Email

Multinational utility and IPP Engie has launched construction on a 200MW/800MWh battery energy storage system (BESS) in Belgium.

The France-headquartered firm announced the start of construction in the 4-hour duration project in Vilvoorde, Belgium, on 5 July.

The 3.5 hectare site will comprise 320 battery units totalling 800MWh, each measuring 25m x 4m x 3m, though Engie hasn’t revealed which BESS provider has been enlisted for the project.

The project has a 15-year contract with the transmission system operator (TSO) in Belgium, Elia. It is being co-located with Engie’s 870MW combined cycle gas turbine (CCGT) plant which it acquired in 2020.

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

It will be commissioned in two phases, with 100MW coming online in September 2025 and a further 100MW in January 2026. Vilvoorde is one of three large-scale projects the firm has construction permits for, along with ones in Kallo (100MW) and Drogenbos (80M), revealed in April 2023.

The projects were part of a 3.6GW pipeline of BESS projects under development which will add to its 1.3GW of already-operational assets.

The Belgium market is among the most active in Europe, with a storage-friendly grid regulatory environment and ample revenue opportunities in flexibility services, energy trading and capacity markets, where 357MW of BESS projects were awarded contracts in the most recent tender.

The largest approved project in Europe, Giga Storage’s 2.4GWh system, is being planned for there.

The country had around 372MWh of front-of-meter grid-scale BESS online as of the end of 2023, with another 140MWh coming online this year and a staggering 1.7GWh set to come online in 2025 according to data from LCP Delta provided for our Energy Storage Report earlier this year.

3 November 2026
Málaga, Spain
Understanding technology and supplier selection for Europe’s utility-scale PV market in 2027. PV ModuleTech Europe 2026 is a two-day conference that tackles these challenges directly, with an agenda that addresses all aspects of PV module, inverter and battery supplier selection; product availability, technology offerings, supply chain traceability, quality assurance, factory auditing, system reliability, and supplier bankability.
22 February 2027
InterContinental London - The O2, London, UK
The Future of Energy Storage Starts Here Three days in London where developers, IPPs, investors, utilities and the manufacturers building the technology come to close deals, not swap business cards. If you need to be in the room with the people deploying capital into European storage, this is that room.

Read Next

October 22, 2026
As demand for battery storage soars, the European Union (EU) has tried to grow its local battery supply chain with mixed success so far, writes PV ESS analyst Charlotte Gisbourne.
October 21, 2026
Foresight Group has acquired the 100MW/400MWh Nivala BESS via its Foresight Energy Infrastructure Partners II (FEIP II) fund.
October 20, 2026
ENGIE’s Hazelwood battery energy storage system (BESS) expansion in Australia has moved closer to financial close after a state transmission declaration.
October 19, 2026
Four-hour battery storage is less expensive than open-cycle gas turbines in the 43 markets in which both technologies were modelled, according to a new report from market research firm Wood Mackenzie.
October 12, 2026
Power group Engie has put an 142MW/802MWh BESS project in Chile into operation, while IPP Grenergy has secured financing for the fifth and final stage of its Oasis de Atacama solar-plus-storage project.