What a fuel cell vehicle does differently from a battery electric car

A fuel cell electric vehicle (FCEV) generates its own electricity while you drive instead of storing it in a battery. The car carries compressed hydrogen gas in a tank, passes it through a fuel cell stack where it reacts with oxygen from the air, and produces electricity, water, and heat. That electricity powers an electric motor. The only emission from the tailpipe is water vapor.

The difference from a battery electric vehicle (BEV) matters for how you refuel and how far you can go. An FCEV fills up with hydrogen in about five minutes at a hydrogen station, much like a gas car. Most FCVs have a range of 300 to 400 miles per tank. A BEV charges at home or at a charger, takes longer to refuel, and typically has a shorter range unless you buy a more expensive model.

FCVs are still rare in the United States. Only three models are currently sold here: the Toyota Mirai, the Hyundai Nexo, and the Honda Clarity Fuel Cell (though Honda stopped making new Clarity FCVs after 2021). Most hydrogen stations are in California, with a handful in other states. If you live outside California or a few other areas, an FCEV is not a practical choice right now.

Key Takeaways

  • Fuel cell vehicles generate electricity from hydrogen gas while driving, refuel in five minutes, and produce only water as an emission.
  • The Toyota Mirai and Hyundai Nexo are the only new FCVs currently sold in the United States, and both are available only in California and a few other states.
  • Hydrogen stations are concentrated in California; most other states have none or only one or two, making an FCEV impractical outside those areas.
  • Leasing an FCEV is more common than buying because the technology is still developing and hydrogen infrastructure is limited.
  • If you have access to hydrogen stations and want a zero-emission vehicle with long range and quick refueling, an FCEV may work; otherwise, a battery electric vehicle is more practical.

How the fuel cell stack produces electricity

Inside the fuel cell stack are thin membranes that separate hydrogen gas from oxygen. Hydrogen enters one side, oxygen from the air enters the other. A chemical reaction at the membrane releases electrons, which flow through a circuit to power the electric motor. The hydrogen and oxygen combine to form water, which exits as steam or liquid depending on temperature.

This process is different from burning hydrogen. No combustion happens, so there are no nitrogen oxides or particulates. The only byproduct is water. The efficiency is also higher than an internal combustion engine—a fuel cell converts about 60 percent of the hydrogen's energy into motion, while a gas engine converts about 20 to 30 percent of gasoline's energy.

The fuel cell stack itself lasts the life of the vehicle under normal conditions. Toyota warrants the Mirai's fuel cell for 10 years or 150,000 miles. Hyundai warrants the Nexo's for 10 years or 100,000 miles. The stack does not degrade significantly over time the way a battery does.

Where to find hydrogen stations and what refueling costs

California has the most hydrogen infrastructure in the United States, with over 50 public stations as of 2024, though the exact number changes as stations open and close. A few stations exist in Massachusetts, Connecticut, New York, and Hawaii. Most other states have none. Before buying or leasing an FCEV, check the H2 Stations map on fuelcellsus.org or the HydrogenStations.com database to see what is near you.

Hydrogen prices vary by station and region. In California, hydrogen typically costs between $13 and $18 per kilogram as of 2024. A Mirai holds about 5.3 kilograms, so a full tank costs roughly $65 to $95. A Nexo holds about 5.6 kilograms. These prices fluctuate and vary by location, so call ahead or check the station's app before you go.

Some hydrogen stations are free or discounted for early adopters or lease customers, especially through Toyota and Hyundai programs. Toyota's Mirai lease includes free hydrogen at participating stations for the lease term. Hyundai's Nexo lease also includes hydrogen credits. If you are considering an FCEV, ask the dealer what fuel incentives come with the lease.

Leasing versus buying an FCEV

Most people lease an FCEV rather than buy one. Leasing makes sense because the technology is still developing, hydrogen infrastructure is expanding, and resale value is uncertain. A three-year lease lets you drive a zero-emission vehicle without betting on whether hydrogen will become more available in your area.

The Toyota Mirai lease typically runs $349 to $499 per month for a 36-month term, depending on the trim and your location, with hydrogen included. The Hyundai Nexo lease is usually $399 to $599 per month. These are rough ranges; actual prices vary by dealer, incentives, and your credit. Leasing also covers maintenance and warranty, so you do not pay for repairs.

Buying an FCEV is possible but less common. A new Mirai costs around $50,000 to $60,000 before incentives. A new Nexo costs around $60,000 to $70,000. Federal tax credits and state rebates may reduce the price. California offers a $5,000 rebate for FCEV purchases. Some utilities offer additional incentives. Check your state's energy office or the Alternative Fuels Data Center for current offers in your area.

How an FCEV compares to a battery electric vehicle

The choice between an FCEV and a BEV depends on where you live, how far you drive, and how you refuel. If hydrogen stations are nearby and you want to refuel in five minutes, an FCEV works. If you have a driveway to charge overnight and hydrogen stations are far away or nonexistent, a BEV is more practical.

FactorFuel Cell VehicleBattery Electric Vehicle
Refueling time5 minutes30 minutes to 12 hours (depends on charger)
Range per fill300–400 miles200–500 miles (varies by model)
Infrastructure in most statesRare or absentGrowing; chargers in most areas
Home chargingNot possiblePossible with Level 2 or DC fast charger
Typical lease cost$350–$600/month$300–$600/month (varies widely)
Fuel cost per mile$0.12–$0.18 (hydrogen $13–$18/kg)$0.03–$0.05 (electricity $0.12–$0.16/kWh)

A BEV is cheaper to operate per mile because electricity costs less than hydrogen. A BEV also works better if you charge at home and drive less than 200 miles most days. An FCEV makes sense if you drive more than 300 miles regularly, live near hydrogen stations, and want to refuel quickly.

Maintenance and reliability of fuel cell vehicles

An FCEV has fewer moving parts than a gas car and fewer wear items than a BEV. There is no oil to change, no transmission fluid, no spark plugs. The brake pads last longer because the car uses regenerative braking to slow down and recapture energy. The fuel cell stack itself requires no maintenance.

Reliability data is limited because so few FCVs are on the road. Toyota and Hyundai both have strong track records with their fuel cell technology. The Mirai has been sold since 2015 and the Nexo since 2018. Both manufacturers warranty the fuel cell stack for 10 years, which suggests confidence in durability. Real-world reports from owners are generally positive, though the sample size is small.

The main maintenance items are the air filter, cabin air filter, and coolant. Tire wear is normal. If you lease, the dealer covers all maintenance. If you buy, plan for routine service similar to a BEV—less frequent than a gas car but not zero.

Federal and state incentives for fuel cell vehicles

The federal government offers a tax credit of up to $7,500 for new FCEV purchases, though the rules are complex and the credit phases out as manufacturers sell more vehicles. The credit applies to the Mirai and Nexo. You must meet income limits and the vehicle must be assembled in North America. Leased vehicles do not may have access to for the federal credit, but the lessor may pass savings to you through lower monthly payments.

California offers a $5,000 rebate for FCEV purchases through the Clean Vehicle Rebate Project. Some utilities in California also offer additional rebates or hydrogen credits. Connecticut, Massachusetts, and New York have smaller incentive programs. Check your state's energy office or the Alternative Fuels Data Center at afdc.energy.gov to see what is available where you live.

Incentives change frequently and have budget limits. Some programs run out of money and reopen later. Before you commit to an FCEV purchase or lease, confirm what incentives are currently available and whether you meet the requirements.

Frequently Asked Questions

Can I buy a used fuel cell vehicle?

Used FCVs are rare because most are leased. A used Mirai or Nexo may be available through a Toyota or Hyundai dealer after a lease ends, but selection is very limited. Used prices are typically $25,000 to $40,000 depending on mileage and condition. Warranty coverage on a used FCEV is shorter than on a new one, so ask the dealer what is included before you buy.

What happens if I run out of hydrogen?

An FCEV will warn you when fuel is low, similar to a gas car. If you ignore the warning and the tank empties, the car stops. You will need a tow to the nearest hydrogen station. This is rare because the range is 300 to 400 miles and stations are marked on the car's navigation system. Plan your route before you leave, especially if you live in an area with few stations.

Is hydrogen fuel safe?

Hydrogen is as safe as gasoline for vehicle use. The tank is reinforced steel and tested to withstand high pressure and impact. Hydrogen is lighter than air, so it disperses quickly if there is a leak. The fuel cell stack is sealed and does not expose you to hydrogen during normal driving. No safety incidents have been reported in the United States from FCEV operation.

Can I drive an FCEV across the country?

Not yet. You can drive an FCEV across California because stations are distributed throughout the state. You cannot reliably drive from California to another state because hydrogen infrastructure outside California is too sparse. Long-distance FCEV travel is not practical in the United States at this time. If you need to travel across the country regularly, a BEV or gas car is a better choice.

What is the difference between a fuel cell and a battery electric vehicle in cold weather?

FCVs perform well in cold weather. The fuel cell generates heat as a byproduct, which warms the cabin. Range loss in cold is minimal, typically 5 to 10 percent. BEVs lose more range in cold—usually 20 to 40 percent—because the battery is less efficient and heating the cabin draws from the battery. If you live in a cold climate and want maximum range in winter, an FCEV may be better than a BEV.