Regan Brown
Hydrogen fuel cells are an exciting prospect for car owners, offering a potential increase in mileage and improved performance. Hydrogen fuel cells produce electricity to power the car, with the only waste product being water vapour. This makes hydrogen an attractive, green alternative to traditional fuel sources. While hydrogen fuel cells are not widely available, they are being used in a range of vehicles, from drones to trains, and there are over 100 hydrogen fuelling stations in Europe. Hydrogen fuel cells can be added to existing gasoline-powered cars, and some vehicle manufacturers, such as BMW, have already joined forces with hydrogen producers to further develop this technology.
Characteristics and Values of Adding a Hydrogen Fuel Cell to Your Car
| Characteristics | Values |
|---|---|
| Fuel | Hydrogen |
| Fueling time | 3-5 minutes |
| Fueling stations | Over 100 in Europe, 60 in California |
| Fueling method | Pumped in the same way as a conventional petrol or diesel car |
| Fuel tank | Stores hydrogen gas onboard |
| Fuel cell | An assembly of individual membrane electrodes that use hydrogen and oxygen to produce electricity |
| Fuel filler | A nozzle from a fuel dispenser attaches to the receptacle on the vehicle to fill the tank |
| Power | Defined by the size of the electric motor(s) |
| Power electronics controller (FCEV) | Manages the flow of electrical energy delivered by the fuel cell and the traction battery |
| Thermal system (cooling) | Maintains a proper operating temperature range of the fuel cell, electric motor, power electronics, and other components |
| Battery | Recaptures braking energy, provides extra power during short acceleration events, and smooths out the power delivered from the fuel cell |
| Parasitic draw | Reduced due to the charging of the battery by the fuel cell instead of the alternator |
| Performance | Improved over time due to reduced parasitic draw |
| Fuel efficiency | 2.5 times more efficient than gasoline engines |
| Emissions | No emissions, only water vapor |
| Cost | Higher than comparable e-cars with batteries or internal combustion engines |
| Consumer incentives | Federal income tax credit of up to $7,500, Clean Air Vehicle decal allowing solo access to carpool lanes |
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What You'll Learn
The benefits of hydrogen fuel cells
While hydrogen fuel cells have not yet become a widely adoptable technology for consumer vehicles, they offer several benefits that make them a promising energy source for the future.
One of the most significant advantages of hydrogen fuel cells is their environmental impact. They only emit water vapour and heat, providing a zero-emission power source that stands in stark contrast to combustion engine vehicles, which emit carbon monoxide and require good ventilation for indoor use. This makes hydrogen fuel cells an attractive option for indoor use, especially in confined spaces.
Hydrogen fuel cells also offer a quick and easy refueling process, taking only about three minutes. This is a considerable advantage over other energy sources, such as lead-acid batteries, which require a complex and time-consuming process of changing out a heavy battery when it needs to be charged. The high energy density of hydrogen fuel cells means that hydrogen-powered equipment can operate for longer durations and requires less frequent refueling, making them a great choice for busy operations aiming to last a full shift.
Additionally, hydrogen fuel cells provide decentralized, on-site power generation, which can be deployed rapidly. This reduces the time it takes for a facility to become operational, ensuring continuous operation even during grid delays or failures. This capability is especially valuable for critical or remote locations, as it offers an immediate and reliable power source.
Furthermore, hydrogen fuel cells are cost- and space-effective. They require minimal maintenance and occupy less space compared to grid lines, making them a viable option for facilities with limited space.
While the production of hydrogen fuel using natural gas emits carbon dioxide, there are alternative methods, such as electrolysis, where hydrogen is extracted from water using solar or wind power, offering a truly carbon-free energy source. Hydrogen can be produced domestically from various resources, including natural gas, coal, solar energy, wind, and biomass, contributing to the diversification of our transportation energy options and strengthening national energy security.
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Hydrogen fuel cell kits
HHO kits are suitable for all engines and can be installed without professional help. The installation process involves installing three components: a generator, reservoir, and filter, and connecting them with provided hoses and clamps. Wiring is also included in the kit. For cars with fuel injection, a gas or diesel tuner must be installed to ensure the car computer adjusts the fuel ratio.
HHO kits can be purchased from various suppliers, such as HHO Kits Direct, which offers a range of advanced HHO Kits, including the H2XTRME HHO generator. This kit includes all the necessary components for installation, setup, and operation, such as an ultra-slim reservoir, dry filter, controller electronics, wires, hoses, connectors, and mounting brackets.
While HHO kits can improve fuel efficiency, it is important to note that they may not provide significant cost savings. The increased mileage may not always offset the costs of purchasing and installing the kit. Additionally, HHO systems tend to get hot due to the high amperage required to produce HHO gas, and they may consume water quickly, requiring frequent refills.
Before purchasing and installing a hydrogen fuel cell kit, it is essential to carefully consider the potential benefits and limitations. While some users have reported improvements in gas mileage, others have questioned the effectiveness of these kits, suggesting that they may not provide the expected results.
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Hydrogen fuel cell maintenance
Firstly, it is important to monitor the hydrogen fuel tank, ensuring it is securely attached and functioning correctly. This tank stores hydrogen gas, and the amount of energy stored in it determines the power of the vehicle. The fuel filler, or nozzle, is where a fuel dispenser attaches to fill the tank, so this connection point should also be checked for any signs of damage or wear.
Secondly, the power electronics controller (FCEV) requires attention. This component manages the electrical energy flow from the fuel cell and the traction battery, so it must be maintained to ensure the efficient operation of the electric motor.
Thirdly, the thermal system, or cooling system, should be a focus of maintenance. This system is critical as it maintains the operating temperature of the fuel cell, electric motor, power electronics, and other components.
Finally, the fuel cell stack, an assembly of membrane electrodes that use hydrogen and oxygen to produce electricity, should be inspected. This is a crucial component as it directly powers the electric motor, and any issues could impact the performance and efficiency of the vehicle.
In addition to these specific components, general car maintenance tasks, such as checking tire pressure and wear, and inspecting the brakes, steering, suspension, and chassis, are also important for the overall performance and safety of the vehicle.
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Hydrogen fuel cell costs
The cost of a hydrogen fuel cell varies depending on its power output and intended application. For instance, the H-12 fuel cell stack, which produces 12W of power and can be used for classroom demonstrations and powering basic domestic appliances, costs around $450. On the other hand, the H-100 fuel cell stack, an air-cooled system that can power small motorboats or be used in research labs, starts at approximately $2,100.
The 2.5kW T-Series fuel cell, designed for telecommunications and backup power, typically ranges from $10,000 to $15,000. This type of fuel cell is valuable due to hydrogen's ability to be stored for extended periods without degradation, ensuring emergency power is available during outages.
At the higher end of the power spectrum, a 120kW Liquid Cooled Hydrogen Fuel Cell VL-Series capable of generating 120kW of power can cost close to $100,000. Such fuel cells are often custom-configured to the buyer's unique requirements and can be used to power large agricultural machines and industry-specific equipment.
While there is limited information on the cost of adding a hydrogen fuel cell to a car specifically, it is important to consider the costs of purchasing and converting to hydrogen fuel. As mentioned by a user on Reddit, the increased mileage from adding a hydrogen fuel cell may not offset the costs of conversion and hydrogen fuel. Additionally, the cost of refuelling a hydrogen-powered car can vary depending on the vehicle type and the hydrogen station.
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Hydrogen fuel cell infrastructure
The development of hydrogen fuelling stations is a complex and costly process, with each station estimated to cost around $2 million. The Bipartisan Infrastructure Law recognizes this challenge and includes $7 billion in funding for seven Regional Clean Hydrogen Hubs (H2Hubs) to accelerate the deployment of low-cost, clean hydrogen infrastructure. These hubs will focus on projects that enable hydrogen vehicle adoption for fleets and the public. The Inflation Reduction Act of 2022 also provides incentives for projects with low lifecycle greenhouse gas emissions, offering a tax credit of up to $3 per kilogram of hydrogen.
The expansion of hydrogen fuelling infrastructure is crucial to keep pace with the growing hydrogen fuel cell industry. Manufacturers like Hyundai and Toyota are already offering fuel cell electric vehicles (FCEVs) for sale or lease in markets where hydrogen fuel is available. The increased number of retail hydrogen fuelling locations is supporting the initial rollout of FCEVs, and mobile hydrogen fuelling stations are also being developed to enhance hydrogen infrastructure. These developments are giving early adopters of FCEVs the confidence to drive and access hydrogen fuel within their regions.
Safety is a critical aspect of hydrogen fuel cell infrastructure. Many of the hydrogen safety codes and standards are based on practices from the chemical and aerospace industries. The Department of Energy (DOE) is working to develop more robust codes and standards to ensure the safe use of hydrogen for transportation and stationary applications. NFPA 2, for instance, is a harmonized national standard for hydrogen vehicle infrastructure. The successful implementation of hydrogen fuelling infrastructure requires the integration of components into complete systems, and the DOE is actively testing and validating integrated hydrogen and fuel cell technologies for transportation, infrastructure, and electric generation.
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Frequently asked questions
A hydrogen fuel cell is a power source that uses hydrogen and oxygen to produce electricity. The hydrogen comes from one or more tanks in the car, while the oxygen comes from the ambient air. The only waste product is water vapour.
You can purchase a hydrogen fuel cell kit online and add it to your gasoline-powered car.
Hydrogen fuel cells are a clean and green power source for cars. They are also highly efficient — about 2.5 times more efficient than gasoline engines. Hydrogen-powered vehicles also have shorter refuelling times compared to charging an electric vehicle.
Examples of hydrogen fuel cell cars include the BMW iX5 Hydrogen and the Toyota Mirai.
