ENGIE selects ACCURE to maximise availability, safety and operational performance at its 200 MW / 800 MWh Vilvoorde site, one of Europe’s largest grid-scale BESS assets

Aachen, Germany - July 2026 - ENGIE, a major player in the energy transition, has selected ACCURE Battery Intelligence (ACCURE) for its 200 MW / 800 MWh asset in Vilvoorde, Belgium, one of Europe’s largest BESS sites.

ENGIE engaged ACCURE following the Vilvoorde battery park’s commissioning in November 2025 to maximise the asset’s performance, ensuring the system operates safely and reliably at full capacity while protecting the revenue it is positioned to generate. ACCURE’s continuous, independent monitoring surfaces developing battery issues before they compound, giving ENGIE's team the insight needed to make proactive maintenance decisions, minimising unplanned downtime and lowering operating costs.

ACCURE's work at Vilvoorde directly supports ENGIE's commitment to safe, reliable energy infrastructure and its broader role in strengthening Belgian grid resilience. By maintaining high asset availability and predictable battery behaviour year after year, the site is well-positioned to make a consistent, long-term contribution to balancing generation and demand across Belgium's electricity network.

ACCURE enables the Vilvoorde battery park’s asset management and operations and maintenance (O&M) teams to identify performance gaps before they escalate, validate warranty and contractual compliance, and reduce unplanned maintenance expenditure - lowering OpEx and protecting long-term asset value.

Dr. Kai-Philipp Kairies, CEO and Co-founder of ACCURE, said:

“Our role is to give ENGIE's team continuous, independent visibility into how their batteries are performing so they can stay ahead of developing problems and make proactive maintenance decisions, maximising operational performance and long-term value throughout the asset’s life.”

About ENGIE

ENGIE is a major player in the energy transition, whose purpose is to accelerate the transition towards a carbon-neutral economy. With more than 90,000 employees in 30 countries, the Group covers the entire energy value chain, from production to infrastructures and sales. ENGIE combines complementary activities: renewable electricity and green gas production, flexibility assets (notably batteries), gas and electricity transmission and distribution networks, local energy infrastructures (heating and cooling networks) and the supply of energy to individuals, local authorities and businesses. Every year, ENGIE invests on average €12 billion per year to drive forward the energy transition and achieve its net-zero carbon goal by 2045. Turnover in 2025: €71.9 billion. The Group is listed on the Paris and Brussels stock exchanges (ENGI) and is represented in the main financial indices (CAC 40, Euronext 100, FTSE Euro 100, MSCI Europe) and nonfinancial indices (DJSI World, Euronext Vigeo Eiris - Europe 120 / France 20, MSCI EMU ESG screened, MSCI EUROPE ESG Universal Select, Stoxx Europe 600 ESG-X).

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