Almost all of the fuel-cell vehicles in the United States are in CALIFORNIA . There are a handful in Hawaii. That's because there is no hydrogen fueling network anywhere in the U.S. outside of CALIFORNIA and the Aloha State. There are more in development in the northeastern U.S. and more are expected in the Pacific Northwest.

Most stations obtain pressurized gaseous hydrogen, which relies on compressor stations and a network of trucks to get the H2 delivered. Many future stations will supply liquid hydrogen, the supply of which is larger and more reliable. As more stations are built, the availability of hydrogen for your fuel cell vehicle obviously increases.

The U.S. government says the goal is 200 hydrogen stations in CALIFORNIA by 2025. By 2030, a total of 1,000 stations in the state is "envisioned". Once refueling stations are added in other states, the number of fuel cell vehicles will grow nationwide.

Approximately 80% of hydrogen refueling stations now have a capacity of 150 to 200 kilograms of hydrogen. A typical refueling requires perhaps 3 kilograms or a little more. So a typical station can fill 50 to 67 hydrogen fuel cell cars before running out of H2. Since future stations will use liquid rather than gaseous hydrogen, they will have capacities of 500 to 800 kg, i.e., enough for 167 to 267 cars. Some stations could have a capacity of 1,200 kg, or 400 cars.