Woodside Energy has tapped Air Liquide for the engineering and fabrication of two 30-tonne liquefaction units at the energy company’s proposed H2OK hydrogen plant in Oklahoma, according to a news release.

The contract for the equipment, which will liquefy hydrogen produced via electrolysis in preparation for storage, loading and transportation to customers, marks a significant milestone for the project, Woodside said. It aims to complete FEED activities by year-end.

Liquid hydrogen produced at the Ardmore, Oklahoma facility will be used for fuel cell-powered commercial and heavy transport vehicles as companies look to decarbonize.

“Our customers are increasingly seeking out low-cost, lower-carbon sources of energy, such as hydrogen and ammonia,” Woodside CEO Meg O’Neill said in the release.

H2OK will become Woodside’s first global hydrogen production facility if a final investment decision is reached, all required approvals are met and commercial arrangements are finalized. FID is expected in 2023.

Woodside is also working on proposed hydrogen projects in Australia called H2Perth and H2TAS.