Wärtsilä 34SG Makes Data Center Debut

Wärtsilä will supply 412 MW of engine power to support a new hyperscale data center in Ohio. The project includes 40 Wärtsilä 34SG four-stroke, spark-ignited, lean-burn gas engines. This order brings Wärtsilä’s total engine capacity sold into the US data center market to over 1.6 GW.

This latest order marks the first use of the 34SG model in a data center application. According to Wärtsilä, the 34SG model’s modular engine technology offers high efficiency, 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,” said Risto Paldanius, vice president, Americas, at Wärtsilä.

Equipment deliveries are scheduled to align with an anticipated commercial operation date of early 2028.