Technology group Wärtsilä will deliver 27 engines to provide continuous primary power for a new data center under construction in the United States.
The onsite power facility will operate with 27 Wärtsilä 50SG flexible engines with a power of 507 MW.
The engines will run on natural gas and can be converted to run on sustainable fuels in the future. The equipment will be delivered in 2027. The order was booked in Wärtsilä’s order intake in Q4 2025.
Additional details on the data center location were not provided by the company.
“Data centers are essential to the development of today's digital economy, but they demand substantial amounts of power with high requirements on uptime and reliability. Access to consistent and reliable power from the grid is not guaranteed, as conventional supply systems often struggle with capacity constraints, inefficiencies and insufficient stability. Therefore, many data center developers are turning to off-grid power solutions including a primary power source, like an engine power plant, to ensure faster access to reliable power,” it said.
Wärtsilä said its engines were chosen ahead of other competing technologies “for a variety of reasons including their ability to operate at full capacity even in temperatures exceeding 100 degrees Fahrenheit (37.8 degrees Celsius). Wärtsilä is also able to guarantee low plant emissions. This, coupled with the leading fuel efficiency of Wärtsilä engines, allows the customer to reach their sustainability targets.”
Wärtsilä currently has a global footprint of 79 GW with 6 GW and around 80 power plants in the United States alone, with the data center market offering further growth opportunities in the U.S., it said.
