• Everllence will supply 24 gas engines with a combined output of 480MW for an unnamed off-grid hyperscale data centre in the US
  • Delivery is scheduled in two phases starting in mid-2026, with commissioning aligned with the expansion of the data centre

The fact

Everllence has signed an agreement to supply 24 18V51/60G gas engines for a hyperscale data centre in the United States that the company says will operate completely off-grid. Everllence says the engines will provide a combined 480MW and power AI and cloud applications.

The engines will run on natural gas. Everllence says selective catalytic reduction and oxidation catalysts will allow them to meet required emissions standards, while the 51/60G can also operate with up to 25% hydrogen. Delivery is scheduled in two phases from mid-2026, with commissioning aligned with the data centre’s expansion. Everllence has not named the customer or disclosed the project location.

The assessment

The planned off-grid design shifts power generation onto the data-centre site. Rather than rely on grid supply for this project, the customer plans to generate electricity with 24 on-site engines. Engine installation, fuel supply and commissioning therefore become part of the data-centre delivery schedule.

The undisclosed location limits what can be assessed about delivery. Everllence does not identify the site’s natural-gas supply or permitting status, and it gives no date for individual engines to begin operating. Its two-phase delivery schedule therefore does not establish when the full 480MW will be available to the data centre. For BTW readers, the 480MW remains planned on-site generation. The first meaningful delivery milestone will be when commissioned engines begin supplying power to the data centre.

What to watch

Watch for identification of the customer and site, and for the first engines to be installed and commissioned under the two-phase delivery plan. Site-level natural-gas supply and permitting details would clarify what remains before operation. The clearest delivery milestone will be the first units supplying power to the data centre.