Green hydrogen developer Hy Stor Energy’s hub in the US state of Mississippi is targeting engine manufacturer Rolls Royce, Nasa and the US Navy as potential offtakers.

Hy Stor has inked a strategic partnership with Hancock County Port and Harbour Commission to provide green hydrogen to Port Bienville Industrial Park and Stennis International Airport, just east of New Orleans.

Rolls Royce, Nasa and the US Navy are clients of the industrial park and airport, alongside chemicals firms Sabic Innovative Plastics, Dak Americas, SNF Polychemie and Calgon Carbon, as well as pipeline manufacturer Jindal Tubular .

Green hydrogen will be offered to all these clients and others starting in Q4 2025, says Claire Behar, chief operating officer of Hy Stor, although no firm offtake agreements have been signed.

350t/d – Green hydrogen to be produced by hub in first phase

“We are so excited because we want to bring clean zero-carbon growth to Mississippi,” says Behar.

“We can help [the region] decarbonise across its land, air, sea and space sectors, including hard-to-abate sectors,” she adds.

Other green hydrogen applications could be attracted to the hub, she suggests, such as transport and maritime refuelling facilities, makers of green steel, fertiliser manufacturers or even datacentre operators.

The first phase of the hub is estimated to produce 350t/d green hydrogen, with 71,000t of storage in four nearby underground salt caverns.

Construction of the storage facility in the first salt cavern—which has been fully permitted—will begin later this year. Salt caverns are naturally occurring on the Gulf Coast and are well-suited to hydrogen storage.

Some 800-1,000 MW of installed solar capacity will be developed in the region that Hy Stor has already secured, along with access for hydrogen pipelines.

Hy Stor will apply to the US Department of Energy to be one of the clean hydrogen hubs selected for a share in $8bn in government funding from fiscal years 2022 to 2026. The hub funding was included in the infrastructure legislation passed in 2021, with the hubs have yet to be selected.

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Author: Ros Davidson