Technology group Wärtsilä has secured an order to supply 412 MW of engine power for a major hyperscale data centre project in Ohio, US, marking the first use of its 34SG spark‑gas engine in a data centre application. The project includes 40 Wärtsilä 34SG engines, bringing the company’s total engine capacity sold into the US data centre market to over 1.6 GW.
The 34SG platform is designed for modular, scalable deployment, making it well suited to AI‑driven and high‑performance computing workloads that require fast, flexible generation. The model offers high efficiency, low water consumption, robust performance in high‑temperature environments and a modular architecture that can be scaled into blocks of up to 500 MW+. In this project, the plant will serve as primary, off‑grid power, enabling the data centre to avoid lengthy grid interconnection delays common in the US.
Wärtsilä Energy’s Americas Vice President Risto Paldanius said the order reflects growing confidence in engine‑based solutions as data centre developers seek resilient, quickly deployable generation that can keep pace with cloud and AI demand.
Equipment deliveries are scheduled to support a commercial operation date in early 2028, and the project represents Wärtsilä’s fourth data centre‑related order in the United States.
