Tom McGeehan, Vice President of Project Development, E Finity, Jim Bondi, Partner & Chief Operating Officer, E Finity, Theo Lorentzos, Vice President Sales Americas, Bergen Engines.
Piller SHIELDX™ to Protect First Medium-Speed engine AI Power Plant in the US.
OEM Bergen Engines has secured a contract to supply a 400MW power plant for a new AI data center on the US East Coast. Operating fully off grid in true islanded mode, it will be the first medium-speed reciprocating engine power plant in North America designed for AI-driven workloads.
To safeguard the plant against extreme and continuous AI load fluctuations, the project will deploy Piller’s SHIELDX™ Dynamic Power Stabilization units. Using a combination of mechanical inertia and bi-directional active power modules, SHIELDX™ will manage both large sudden load steps and the rapid, frequent transients characteristic of AI workloads. By absorbing these fluctuations, SHIELDX™ reduces the ramp-rate demand placed on the engines, improves fuel efficiency, lowers operational stress, and optimizes maintenance cycles.
The installation will utilize 36 × 11.2MW Bergen medium-speed, lean-burn gas engines, each paired with Marelli high-efficiency alternators. The first batch is scheduled to ship in December 2025.
The project will be delivered by E-Finity Distributed Generation as EPC and long term O&M provider, with Bergen offering post-commissioning support for major service intervals and spare parts provision.
Originally conceived as a 100MW facility, the project has since grown fourfold, reflecting the explosive growth of the AI sector and the mounting pressure on available power infrastructure.
“This contract marks an exciting milestone for Bergen Engines and our partners at E-Finity. Together, we are setting a new benchmark for independent power at AI scale,” said Theo Lorentzos, VP Sales Americas, Bergen Engines. “By combining Bergen’s engines with Piller SHIELDX™, this project delivers the power and stability that modern AI workloads demand.”

The Parent Behind the Power
Langley Holdings plc, the parent company of Bergen Engines, Piller Power Systems and Marelli Motori, is a global industrial group employing more than 5,000 people, generating $1.5 billion in annual revenues, and remaining 100% family-owned.
The Group operates across a broad spectrum of industries, with its Power Solutions Division strategically focused on powering the rapidly emerging AI data center sector and addressing the critical energy demands driven by high-density compute.
About Bergen Engines AS
Bergen Engines (formally Rolls-Royce Bergen Engines) of Norway manufactures medium-speed engines for mission-critical land and marine applications worldwide.
About Piller Power Systems GmbH
Germany’s Piller Power Systems is the global gold standard in power protection and stabilization technologies, including the SHIELDX™ platform for high-density AI facilities. Piller systems safeguard some of the world’s most critical institutions, including the CIA, the New York Stock Exchange, and the Federal Reserve.
Contact Us: PowerOn@LangleyHoldings.com