Technology group Wärtsilä has received an order to supply 412 MW of engine power to support a major new hyperscale data center project in Ohio, United States. The project includes 40 Wärtsilä 34SG engines. This order brings Wärtsilä’s total engine capacity sold into the US data center market to over 1.6 GW. The order was booked as intake by Wärtsilä in Q2 2026.

This latest order marks the first use of the highly proven 34SG model in a data center application. This engine is ideally suited for data center developers, offering a compelling combination of benefits compared to alternative power generation options. The 34SG model’s modular engine technology offers high efficiency, proven reliability, low water consumption, and strong performance in high-temperature environments, making it well suited for AI-driven and high-performance data center applications. Its modular design accommodates data center developers looking for power solutions that can be deployed in modular blocks, scaling up to 500MW+.

“This project underscores the confidence data center developers place in Wärtsilä’s engine technology to deliver fast, flexible power at scale. As AI and cloud demand accelerate, operators need energy solutions that are efficient, resilient, and available on their timeline – not the grid’s. Wärtsilä provides that foundation, delivering dependable, high performance power that scales as quickly as their infrastructure. The customer chose Wärtsilä for its proven reliability, rapid deployment, and strong operational efficiency across diverse operating conditions,” says Risto Paldanius, Vice President, Americas at Wärtsilä Energy.

The power plant will provide highly flexible, primary power, enabling the data center to operate off-grid and avoid long interconnection delays common to the US market. Equipment deliveries are scheduled to align with an anticipated commercial operation date of early 2028.

This is Wärtsilä’s fourth data center related order in the USA.