Rajan Wilcox
Fuel cell cars are electric vehicles that use a fuel cell, often in combination with a battery, to power an electric motor. They are fuelled with pure hydrogen gas, which is stored in a tank on the vehicle. Hydrogen is the most abundant chemical substance in the universe and does not produce greenhouse gases when burned. However, the process of converting hydrogen into energy for fuel cells is inefficient, and hydrogen fuel cell cars are more expensive than their electric or gasoline counterparts. So, are fuel cell cars really green?
| Characteristics | Values |
|---|---|
| Fuel | Hydrogen gas |
| Fuel storage | Onboard tank |
| Fuel efficiency | Comparable to gasoline vehicles |
| Environmental impact | Zero tailpipe emissions, no harmful exhaust, only water vapour |
| Energy efficiency | Lower than battery-powered vehicles |
| Cost | Higher than gasoline or electric vehicles |
| Infrastructure | Limited hydrogen fuelling stations |
| Availability | Limited models available |
| Performance | Comparable to gasoline vehicles |
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What You'll Learn
- Hydrogen fuel cell vehicles are zero-emissions vehicles
- Hydrogen fuel cell vehicles are more expensive than electric vehicles
- Hydrogen fuel cell vehicles are less efficient than electric vehicles
- Hydrogen fuel cell vehicles are quieter than internal combustion vehicles
- Hydrogen fuel cell vehicles are available for sale or lease from major automakers
Hydrogen fuel cell vehicles are zero-emissions vehicles
Hydrogen fuel cell vehicles are electric cars that run on hydrogen fuel instead of fossil fuels. They are considered zero-emissions vehicles because they emit no pollutants that affect public health and produce no greenhouse gases that contribute to climate change. The only byproducts of hydrogen fuel cells are water and heat.
Hydrogen fuel cell vehicles have several advantages over traditional internal combustion engine vehicles. Firstly, they are much more environmentally friendly, as they produce no emissions that contribute to climate change or air pollution. Secondly, they are very energy efficient, with a driving range of over 300 miles per tank and a quick refuelling time of about 5 minutes, similar to that of a standard car. Additionally, they are smooth, quiet, and pleasant to drive.
However, hydrogen fuel cell vehicles also have some disadvantages. One of the main challenges is the availability of hydrogen fuel. Building a new hydrogen fuelling infrastructure has proven to be more difficult and expensive than expected, and the number of hydrogen stations has not increased as planned. Another disadvantage is the cost of hydrogen fuel cell vehicles. They tend to be more expensive than comparable conventional cars, and the total cost of ownership for a hydrogen fuel cell vehicle is about 40% higher than for a gasoline vehicle and 10% more than an electric vehicle.
Despite these challenges, there is still interest in hydrogen fuel cell vehicles as a low- and zero-emission fuel option. Hydrogen is the most abundant substance in the universe, and it can be produced from various domestic resources. As the use of hydrogen fuel cells expands, it is expected that the costs will decrease and become more competitive with other energy sources. Additionally, hydrogen fuel cell vehicles may be particularly suitable for certain sectors, such as long-haul trucks, locomotives, and ships, where current battery technology may not be adequate.
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Hydrogen fuel cell vehicles are more expensive than electric vehicles
The high cost of hydrogen fuel cell vehicles is largely due to the cost of hydrogen fuel. Hydrogen fuel has historically been priced at about $20 per kilogram, but supply chain disruptions have recently caused prices to increase to as much as $36 per kilogram. This makes the total cost of ownership for hydrogen vehicles about 40% higher than for comparable gasoline vehicles and about 10% more than for electric vehicles.
In addition to the high cost of fuel, hydrogen fuel cell vehicles also face challenges due to the limited infrastructure for hydrogen refueling. As of 2020, there were fewer than 50 hydrogen fueling stations publicly available in the U.S., and a significant number of those were not operational. This lack of infrastructure makes it difficult for hydrogen fuel cell vehicles to compete with electric vehicles, which can take advantage of the existing electrical grid.
While it is true that electric vehicles also require the development of new charging infrastructure, this challenge is less daunting than building a new hydrogen economy from scratch. As Sergey Paltsev, a senior research scientist at the MIT Energy Initiative, notes, "You don't really need to create another infrastructure for electric cars."
The high cost of hydrogen fuel cell vehicles, combined with the limited infrastructure for refueling, has led to the dominance of electric vehicles in the market. Electric vehicles are becoming increasingly popular, with over a million sold in the U.S. last year, compared to just under 3,000 hydrogen fuel cell vehicles. As a result, major car companies are rapidly electrifying their lineups, while only a few hydrogen cars are available.
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Hydrogen fuel cell vehicles are less efficient than electric vehicles
Hydrogen fuel cell vehicles (FCVs) are less efficient than electric vehicles (EVs) due to several factors. Firstly, the process of converting hydrogen gas into electricity to power FCVs is complex and energy-intensive. Hydrogen has to be produced, compressed, and stored in high-pressure tanks, resulting in energy losses at each stage. Rudolf Krebs from Volkswagen explained that due to these inefficiencies, "you end up with 30 to 40 percent" of the original electric energy.
In contrast, EVs utilize around 80% of the total energy to power the vehicle, making them significantly more energy-efficient than FCVs. This higher efficiency is because EVs use electrical energy directly from the grid to charge their batteries, eliminating the need for energy conversion. As a result, EVs have a crucial advantage over FCVs in terms of the existing nationwide electrical system, which reduces the need for new infrastructure.
The high cost of hydrogen fuel is another factor contributing to the lower efficiency of FCVs. Research by Paltsev and his students found that the lifetime cost of ownership for a fuel cell car is about 10% more than an EV. This higher cost discourages consumers from adopting FCVs, limiting their market presence and hindering the development of a hydrogen economy.
Furthermore, FCVs face limitations in terms of refueling infrastructure. As of 2020, there were fewer than 50 hydrogen fueling stations publicly available in the US, with a significant number of those in California being non-functional. In contrast, EVs benefit from a growing network of charging stations, making them more convenient and accessible to users.
While FCVs offer quick refueling times and long driving ranges, these advantages are outweighed by the higher efficiency, lower cost, and more established infrastructure of EVs. As a result, EVs have emerged as the dominant technology in the transition away from climate-polluting gasoline-powered vehicles.
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Hydrogen fuel cell vehicles are quieter than internal combustion vehicles
Hydrogen fuel cell vehicles are a promising alternative to internal combustion engines, offering a range of benefits that contribute to a greener and more sustainable future. One notable advantage is their quiet operation compared to conventional internal combustion vehicles.
Hydrogen fuel cell vehicles are significantly quieter than their internal combustion counterparts. This absence of noise pollution is a distinctive feature that enhances their appeal. The quiet operation of hydrogen fuel cell vehicles can be attributed to the inherent characteristics of the fuel cell technology they employ.
Fuel cells, such as those used in hydrogen-powered vehicles, produce electricity through an electrochemical reaction between hydrogen and oxygen, resulting in the by-products of water and heat. This process is highly efficient and does not involve the combustion of fuel, which is responsible for the loud engine noises associated with internal combustion engines.
In contrast, internal combustion engines rely on the ignition of gasoline or diesel fuel to generate power, leading to the familiar loud engine sounds. The combustion process in these engines produces noise pollution, which can be disruptive and contribute to overall noise levels in our environment.
The quiet operation of hydrogen fuel cell vehicles offers several advantages. For one, it contributes to a more peaceful driving experience, providing a calm and relaxing environment for both drivers and passengers. Additionally, the absence of loud engine noises can help reduce noise pollution in our communities, making urban areas and neighbourhoods more tranquil and pleasant to live in.
While hydrogen fuel cell vehicles offer the advantage of reduced noise pollution, it is important to acknowledge the challenges currently facing this technology. Hydrogen fuel cell vehicles are generally more expensive than their electric or gasoline-powered counterparts, and the limited availability of hydrogen fuelling stations can make refuelling less convenient. However, as the market for hydrogen fuel cell vehicles grows, these challenges may be mitigated through advancements in technology and infrastructure development.
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Hydrogen fuel cell vehicles are available for sale or lease from major automakers
Hydrogen fuel cell vehicles are available for purchase or lease from major automakers, but they are not yet a common choice for consumers. Hydrogen fuel cell vehicles, or FCVs, are electric vehicles that use fuel cells to power their onboard electric motors. The most common type of fuel cell for vehicle applications is the polymer electrolyte membrane (PEM) fuel cell. In a PEM fuel cell, a chemical reaction involving hydrogen and oxygen produces electricity to power the car, with water vapour and heat as byproducts. FCVs are equipped with advanced technologies such as regenerative braking systems that increase efficiency by capturing and storing energy lost during braking.
As of 2021, there were only two models of FCVs publicly available in select markets: the Toyota Mirai and the Hyundai Nexo. The Honda Clarity was also produced from 2016 to 2021 but has since been discontinued. In 2024, Honda introduced the Honda CR-V e:FCEV, which is only available for lease in very limited quantities and only in California. Toyota, the company most devoted to hydrogen power, has sold approximately 14,300 Mirai sedans in the US, sometimes resorting to substantial discounts to sell them.
FCVs have several advantages, including quick fuelling times of about 5 minutes, a driving range of over 300 miles, and zero tailpipe emissions. However, they also face several challenges that have hindered their widespread adoption. One major obstacle is the cost of hydrogen fuel, which makes the total cost of ownership for FCVs significantly higher than that of comparable gasoline vehicles or electric vehicles (EVs). Building a new hydrogen fuelling infrastructure has also proven to be expensive and unreliable, with a limited number of hydrogen fuelling stations available to the public.
Another disadvantage of FCVs compared to EVs is that they cannot be conveniently "refuelled" or recharged at home overnight, like gasoline cars. FCVs depend on a reliable supply of hydrogen fuel and access to properly functioning high-pressure fuelling stations, which can be scarce and charge high prices. Additionally, the process of converting electricity to hydrogen and then back to electricity in a fuel cell results in energy losses, impacting the overall efficiency of FCVs.
While FCVs have their advantages, the challenges related to cost, infrastructure, and efficiency have allowed EVs to take the lead in the market. However, with ongoing improvements in technology and infrastructure development, FCVs may still have a role to play in the future of clean transportation.
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Frequently asked questions
Fuel cell cars are electric vehicles that use a fuel cell, sometimes in combination with a small battery, to power their electric motors. They are fuelled with pure hydrogen gas stored in a tank on the vehicle.
Fuel cell cars are definitely greener than conventional internal combustion engine vehicles as they emit no carbon dioxide or other harmful exhaust from their tailpipes, only water vapour. However, they are not as green as electric vehicles that use batteries. This is because the process of creating hydrogen fuel is inefficient and energy-intensive, and because the creation of a hydrogen fuelling network is expensive and unreliable.
No, as of 2021 there were only two models of fuel cell cars publicly available in select markets: the Toyota Mirai and the Hyundai Nexo. However, Honda has also produced fuel cell cars in the past, and major automakers are offering a limited but growing number of production FCEVs to the public in certain markets.
Fuel cell cars tend to be more expensive than comparable conventional cars, with the two mainstream hydrogen cars on sale in the U.S. starting at around $50,000 and $60,000. However, leasing packages usually include fuel, service and maintenance, so the total cost of ownership for a fuel cell car can be comparable to conventional cars.
Fuel cell cars do not have the same charging time problems as electric cars, taking around five minutes to refuel for another 300-400 miles of driving. They are also very energy efficient, and quiet to drive.
