Posted on November 24, 2025
Technology group Wärtsilä continues its growth in power supply for data centers and 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.
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.
Wärtsilä’s 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.
“Our off-grid solutions eliminate lengthy grid connection delays, and also provide many other intrinsic benefits. Wärtsilä’s modular engine power plants ensure high power availability even during maintenance and they ramp up quickly to meet fluctuating power demands. The plants scale up in capacity fast as data centers grow and operate efficiently also in the most demanding environments, using significantly less fuel and water than other technologies. These strengths make Wärtsilä’s solutions an ideal choice for cost-effective, resilient and future-ready data centers,” says Anders Lindberg, President of Wärtsilä Energy and Executive Vice President of Wärtsilä.
Wärtsilä currently has a global footprint of 79 GW with 6 GW and around 80 power plants in the United States alone. As noted in our Q3 2025 report, the data center market offers further growth opportunities in the US. The US is expected to be the global leader in data center growth by 2030. As energy demand is growing rapidly, customers and the market in the US are increasingly realising the benefits of flexible generation technologies – engine technology and energy storage – to provide affordable, reliable and sustainable energy.
Media contact for more information on this release:
Katri Pehkonen
Communications Manager
Wärtsilä Energy
Mob: +358 50 591 6180
katri.pehkonen@wartsila.com
Image caption: Wärtsilä continues its growth in power supply for data centers and will deliver 27 engines to provide continuous primary power for a new data center under construction in the United States. © Wärtsilä Corporation
Wärtsilä Energy in brief
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, energy storage and optimisation technology, and services for the whole lifecycle of our installations. Our engines are future-proof and can run on sustainable fuels. Our track record comprises of 79 GW delivered power plant capacity and over 130 energy storage systems in 180 countries around the world. Over 30% of our operating installed base is under service agreements.
www.wartsila.com/energy
Wärtsilä in brief
Wärtsilä is a global leader in innovative technologies and lifecycle solutions for the marine and energy markets. We emphasise innovation in sustainable technology and services to help our customers continuously improve environmental and economic performance. Our dedicated and passionate team of 18,300 professionals in more than 230 locations in 77 countries shape the decarbonisation transformation of our industries across the globe. In 2024, Wärtsilä’s net sales totalled EUR 6.4 billion. Wärtsilä is listed on Nasdaq Helsinki.
www.wartsila.com
