Mid-Atlantic Hydrogen Hub (Mid-Atlantic Clean Hydrogen Hub (MACH2); Pennsylvania, Delaware, New Jersey) — (Amount: up to $750m).

This project aims to produce green and pink hydrogen via electrolysers, and seems to be led by the three state governments.

Appalachian Hydrogen Hub (Appalachian Regional Clean Hydrogen Hub (ARCH2); West Virginia, Ohio, Pennsylvania) — (Amount: up to $925m).

This project will produce blue hydrogen derived from natural gas with the associated CO2 emissions captured and permanently stored. It includes hydrogen pipelines and multiple H2 refuelling stations.

California Hydrogen Hub (Alliance for Renewable Clean Hydrogen Energy Systems (ARCHES); California) — (Amount: up to $1.2bn).

This project, led by the state of California, will produce green hydrogen from renewables and biomass that will be primarily used to decarbonise public transport, heavy-duty trucking and port operations.

Gulf Coast Hydrogen Hub (HyVelocity Hydrogen Hub; Texas) — (Amount: up to $1.2bn).

This will project will produce both green and blue hydrogen.

Heartland Hydrogen Hub (Minnesota, North Dakota, South Dakota) — (Amount: up to $925m).

This is a blue hydrogen project that will utilise natural gas that would otherwise be flared.

Midwest Hydrogen Hub (Midwest Alliance for Clean Hydrogen (MachH2); Illinois, Indiana, Michigan) — (Amount: up to $1bn).

This project will produce green, blue and pink hydrogen (ie, from nuclear energy).

Pacific Northwest Hydrogen Hub (PNW H2; Washington, Oregon, Montana) — (Amount: up to $1bn).

This is a green hydrogen scheme that includes proposed projects from 17 companies.

'I don’t know where these rumours come from' | US energy secretary responds to concerns that hydrogen hub funding will be cut