Wärtsilä will supply a 282 MW on-site gas power plant for a US data centre, its seventh US data-centre order

Wärtsilä said on Monday 5 October that it will supply a 282 MW on-site power plant for a US data centre being developed by what it calls “a major US independent power producer”. The plant uses 15 of its 50SG gas engines. Delivery is due in 2028 and full operation in 2029.

The release does not name the customer or the site and gives no order value. It says the order was booked in the third quarter of 2026, that it is the company's seventh data-centre order in the United States, and that it brings the total power capacity Wärtsilä has sold for US data centres to more than 3 GW. The headline ties the order to AI growth intensifying demand for reliable power.

“The U.S. data center market is moving faster than traditional power infrastructure can support,” said Risto Paldanius, Vice President, Americas at Wärtsilä Energy. He said the order shows how flexible onsite power can help developers secure power, reduce deployment risk and scale.

The order adds to a run of deals in which power, not chips, sets how fast AI capacity can be built. Gas engines on site let a developer start operating without waiting for a grid connection.

A caution: Wärtsilä announced a different order of the same size, also 282 MW with 15 engines, for a site in Ohio in July 2025, and some aggregators have mixed the two up. Monday's release names no state.

• Claimed 282 MW, 15 Wärtsilä 50SG engines, delivery 2028, fully operational 2029, for a major US independent power producer; value and customer not disclosed. Wärtsilä press release
• Confirmed The seventh US data-centre order brings Wärtsilä's total sold for US data centres to more than 3 GW; booked in Q3 2026. Wärtsilä press release