Skip to main content Skip to navigation
Hydrogen Properties for Energy Research (HYPER) Laboratory Cool. Fuel.

Outdoor Test Site

H2-Flo: A unique capability in US academia

The Outdoor Hydrogen Test Facility on the WSU Pullman campus is the only outdoor liquid hydrogen facility in U.S. Academia. The facility was developed to characterize novel liquid hydrogen (LH2) storage tanks, fueling systems, and components. It features a gas storage building, an office container to remotely monitor and control experimental systems, and a concrete pad for LH2 transfers and LH2 fuel system testing.

A 3D rendering of the layout of the Outdoor Test Facility

The Gas Storage Building

An outdoor bottle garden allows us to store flammable and inert gas cylinders on site. The facility is plumbed to supply hydrogen to a liquefier from gaseous cylinders or produce hydrogen on site via electrolysis.

A scenic view from the facility, with the Mobile Hydrogen Generation Unit (tan container) in foreground

The first system tested at the facility is a Mobile Hydrogen Generation Unit, a containerized liquid hydrogen fueling station that can generate, liquefy, and refuel LH2 powered unmanned aerial vehicles for the U.S. Army.

Map with location of the Outdoor Test Facility

The Outdoor Test Facility is located on the outskirts of the WSU Pullman campus on Dairy Road.

Washington State University