Wärtsilä to Supply 282 MW Onsite Power for U.S. Data Center

Wärtsilä has secured an order to supply a 282 MW onsite power solution for a data center project being developed by a major US independent power producer in the United States. The power plant will feature 15 Wärtsilä 50SG engines, providing fast-deployable power amid growing challenges around grid availability and lengthy interconnection timelines. The order, booked in Q3 2026, highlights the rising demand for onsite generation as rapid AI-driven electricity consumption fuels new data center development and puts additional pressure on grid capacity.

The project further strengthens Wärtsilä’s proven position in the rapidly growing U.S. data center power market. It marks the company’s seventh data center-related order in the United States, bringing the total power capacity sold by Wärtsilä for U.S. data center applications to more than 3 GW. The customer selected Wärtsilä engine-based solution for its ability to provide large-scale power capacity on efficient timelines while enabling phased expansion as computing demand grows.

The Wärtsilä 50SG engines provide high efficiency in demanding operating conditions, feature a closed-loop cooling system that minimises water consumption compared with conventional thermal power alternatives and offer flexibility to convert the engines to run on future fuels. For data center developers, these features translate into dependable power availability, scalable growth, and greater long-term optionality.

“The U.S. data center market is moving faster than traditional power infrastructure can support,” says Risto Paldanius, Vice President, Americas at Wärtsilä Energy. “This order shows how flexible onsite power can help developers secure reliable power, reduce deployment risk, and scale their operations with confidence. Our growing portfolio of data center projects to date demonstrates the critical role flexible engine technology can play in solving one of the sector’s most urgent growth challenges.”

The Wärtsilä equipment is scheduled for delivery in 2028, and the project is expected to become fully operational in 2029.

Fast facts

Project size: 282 MW
Technology: 15 Wärtsilä 50SG engines
Market: U.S. data center power
Order booked by Wärtsilä: Q3 2026
U.S. data center orders: Seventh project for Wärtsilä
Total capacity sold for U.S. data centers: More than 3 GW
Key benefits of Wärtsilä engine technology: Accelerates fast access to reliable power for data center growth while supporting efficient operations, low water use, and long-term energy flexibility

Wärtsilä Energy is at the forefront of the transition towards a 100% renewable energy future. We help our customers and the power sector to accelerate their decarbonisation journeys through our market-leading technologies and power system expertise. Our solutions include flexible engine power plants and services for the whole lifecycle of our installations. Our engines are future-proof and can run on sustainable fuels. Our track record comprises 81 GW of power plant capacity in 180 countries around the world. About 35% of our operating installed base is under service agreements.

Wärtsilä is a global leader in innovative technologies and lifecycle solutions for the marine and energy industries. We emphasise innovation in sustainable technology and services to help our customers continuously improve environmental and economic performance. Our dedicated and passionate team of 17,900 professionals in 199 locations in 78 countries shape the decarbonisation transformation of our industries across the globe. In 2025, Wärtsilä’s net sales totalled EUR 6.2 billion. Wärtsilä is listed on Nasdaq Helsinki.