The hydrogen bicycles In a very short time, they have gone from sounding like science fiction to becoming a real prototype that can be tested, rented, and even integrated into university research projects. Although they are still a niche and expensive product, more and more companies and technology centers are investing in this technology as a complement—and in some cases an alternative—to conventional electric bicycles, contributing to the development of green hydrogen in Spain.
In the following lines you will find a A very comprehensive overview of the hydrogen bikeHow it works, what models exist on the market today (or are being tested), what advantages and disadvantages it has compared to electric bicycles, what projects are being developed in Spain and abroad, and to what extent it can be a real solution for urban and professional mobility.
What exactly is a hydrogen bicycle?
A hydrogen bicycle is, essentially, a pedal-assisted bicycle Instead of using only a traditional rechargeable battery, it relies on a fuel cell that generates electricity from hydrogen. The cyclist pedals as on any bicycle, but an electric motor assists when needed, whether for starting, climbing hills, or maintaining a constant speed.
The key is that the Electrical energy does not come solely from a batteryInstead, it's an electrochemical reaction in which hydrogen stored in a small tank combines with oxygen from the air inside a fuel cell. The result is electricity to power the engine and water vapor as the only "exhaust." There is no combustion, no CO2, and no other local pollutants.
This approach allows us to solve two of the major weaknesses of many electric bicycles: charging times and autonomyInstead of waiting hours for a battery to charge, the hydrogen tank is refilled or changed in a matter of seconds or a few minutes, and the energy available per unit of weight is far superior.
More advanced business models and prototypes
Currently, there isn't just one type of hydrogen bike, but several different approaches. Some companies focus on very long range and refueling at hydrogen stations, others on domestic generators, and still others on modular systems designed for rental fleets.
HydroRide Hyrid: the Swiss bet on “homemade” hydrogen
The Swiss company HydroRide has unveiled its Hyrid range of bicycles, probably one of the more comprehensive business proposals Based on fuel cells. They all have a 180W battery, responsible for producing the electricity that assists pedaling, with a maximum speed of about 23 km/h and a declared range of between 50 and 60 km per tank, depending on conditions and model.
The range consists of four different versionsThere's a three-step folding bike, a rental bike, and two traditional models, one of which has a slightly sportier focus, designed for cyclists seeking higher performance. Weight ranges from approximately 19,5 kg for the folding model to around 23,5 kg for the more robust sport version.
Aesthetically, HydroRide has opted for a minimalist and very modern designWith clean lines and a well-integrated hydrogen component, each model has its own design language, but they all maintain a cutting-edge image that reflects the technology they house.
One of the most striking elements of this project is the refueling system. HydroRide has developed a domestic hydrogen generator capable of producing about 20 grams of "green" hydrogen from just 200 ml of water. The generated gas is introduced into a small, removable tank that looks like a classic aluminum bottle, which is placed under the cyclist's saddle. This approach to local and renewable production connects with studies on the production of green hydrogen with renewable energy.
The tank fills up extremely quickly: between 3 and 10 seconds to refuel, allowing riders to continue riding almost without waiting. With one of these refuels, the bike can cover up to 60 km. Furthermore, the company plans to install solar-powered charging stations where users can exchange empty tanks for fully filled ones.
In terms of prices, HydroRide has launched its bikes with introductory offers These systems start at around €1.999. A domestic hydrogen generator costs around €1.349, while each tank, designed to store 20 grams of hydrogen, costs about €119. These aren't low prices, but they are significantly lower than other, more advanced hydrogen solutions.
Alpha Neo Hydrogen: the French long-range proposal
In France, the company Pragma Mobility has been developing hydrogen bicycles for years and currently markets the model Alpha Neo Hydrogen, an electric-assist bicycle that, at first glance, looks very much like a standard e-bike, but integrates a fuel cell and a high-pressure hydrogen tank.
The heart of the system is a central 250W electric motor Located above the bottom bracket axle, it can assist the cyclist up to 25 km/h, the limit set by European regulations for EPACs (Electrically Power Assisted Cycles). This configuration maintains a natural pedaling motion and good weight distribution.
The energy comes from a 480W hydrogen fuel cell and a tank that stores about 67 grams of hydrogen compressed to 300 bar. With this combination, the Alpha Neo offers a range of between 120 and 150 km per refuel, a figure well above that of many electric bicycles with conventional batteries.
Refueling is also very quick: just two minutes at a hydrogen refueling station to fill the tank. The problem is that hydrogen infrastructure is still scarce, both in Spain and in much of Europe, so the use of this model is limited to areas where such stations exist; the situation and deployment of Hydrocharging stations and main networks is key to its viability.
As for the price, the Alpha Neo plays in the league of very high-end bicyclesIts retail price is around 5.690 euros before taxes, which puts it in competition with premium electric bikes that, in many cases, have an advantage in pure cycling components (suspension, transmission, brakes, etc.).
To make it more accessible, Pragma has opted for a long-term rental modelThe user makes an initial payment of around €1.700 and then pays a monthly fee of approximately €79. The manufacturer's goal is to sell around 1.000 Alpha Neo units with this system, enhancing the offering with packages that include hydrogen refueling via microstations, available through the brand's website.
Initially, the company considered alternative on-site hydrogen generation technologies, such as systems based on silicon or magnesium sachets that were placed in the tank along with the water to produce the gas through an electrolytic reaction. However, That line has not materialized in the current model nor is it part of the offer that Pragma communicates today.
Industrial projects: Chinese-made assisted bicycles
Outside of Europe, there are also manufacturers, especially in China, that are developing hydrogen-assisted bicycles with very practical objectives: great autonomy, short hydrogenation times and low pressure systems to improve safety.
One of these manufacturers presents two distinct platforms: one hydrogen-assisted vehicle between 150 and 500 W nominal power, and another hydrogen energy vehicle between 300 and 1.000 W, both designed for personal transport and light professional applications.
In the first case, the hydrogen-assisted bike offers high-pressure hydrogen storage or storage in metal hydridesDepending on the configuration, it has an approximate refueling time of 3 minutes, a top speed of 25 km/h, a payload capacity of about 100 kg, and a total vehicle weight of approximately 39 kg. The manufacturer claims a range of over 80 km per hydrogen tank.
The second model, slightly more robust, maintains the same speed limit of 25 km/h and a range of up to 120 km, with a hydrogenation time of about 2 minutes. The weight increases slightly to about 45 kg. Both vehicles incorporate disc brakes and DC-DC conversion systems in ranges of 24V to 48V, plus pressure relief valves calibrated around 0,5 bar to ensure system safety.
Among the marketing arguments for these products, the possibility of quickly swap hydrogen bottles (less than 1 minute in the basic model and less than 2 minutes in the advanced one), greater range compared to conventional e-bikes, and operation at relatively low pressures (below 10 atmospheres in some hydride storage designs), which is presented as a safety advantage. All this with zero CO2 emissions, since the only byproduct of the reaction in the fuel cell is water.
Research and demonstration projects in Spain
Spain is also making moves in this field, not so much with large-scale commercial products, but with pilot projects and advanced prototypes linked to universities, associations and technology companies.
Burgos and the H2CYL hydrogen bicycle project
A pioneering initiative at the European level has been launched in the city of Burgos: hydrogen-powered bicycles developed by the Castilian and Leonese Hydrogen Association (H2CYL) together with the University of Burgos, the financial institution Caja Rural Cajaviva and the company Hiperbaric.
The presentation took place in the Nexo Building and was part of the events leading up to European Mobility Week. The main objective is bringing hydrogen closer as an energy carrier to the general public, allowing people to see and try for themselves how a hydrogen bicycle works, in line with the betting on green hydrogen that promotes local and regional projects.
During the event, Andrés Díaz Portugal, a researcher at the University of Burgos, emphasized the importance of the practical training and investment in R&D&IThe idea is to incorporate these bicycles into university studies so that students can become familiar firsthand with fuel cell technology, hydrogen storage systems and their integration into light vehicles.
From a technical point of view, Díaz explained that hydrogen is stored in a low pressure metal hydride storage tankThe gas is released gradually according to the engine's demand, while the fuel cell transforms that hydrogen into electricity, emitting only water vapor. The tanks can be refilled using a domestic electrolyzer of about 300 W connected to the electrical grid and powered by water.
Rafael Barbero, president of H2CYL, took advantage of the presentation to recap the trajectory of the association's first years, with a very positive assessment: 78 members, three full-time professionals and participation in several European and regional projects related to hydrogen. Furthermore, he highlighted that the so-called Hydrogen Valley of Castile and León is progressing decisively, with plans to have Burgos' first hydrogen refueling station operational by 2028 to supply buses, trucks, and cars, in line with the European directive that requires refueling points every 150 km by 2030.
For his part, Ramón Sobremonte, general manager of Caja Rural Cajaviva, explained how this collaboration came about. When H2CYL proposed their participation, they saw an opportunity to bring hydrogen closer to the public through a tangible and educational project. In addition to their use on the street, these bicycles will be taken to schools and training centers to raise awareness about the energy transition and hydrogen technologies.
Hiperbaric CEO Andrés Hernando focused on the role of hydrogen in industry and light mobility. According to his data, these bicycles achieve about 60 km of range with only 20 grams of hydrogenWith a tank that can be swapped in about 15 seconds and a top speed of around 25 km/h, this demonstrates the potential of this technology for decarbonizing everyday commutes.
Furthermore, he pointed out that it is a locally manufactured product that take advantage of surplus renewable energyThis contributes to consolidating Burgos as a leader in sustainable innovation. This approach to the local production and use of green hydrogen fits perfectly with European decarbonization strategies.
During European Mobility Week, the general public had the opportunity to try these hydrogen bikes The project was presented at a special event titled “Hydrogen, the Opportunity for Castile and León,” organized by the University of Burgos in Valladolid, on the Paseo de Atapuerca, in front of the Fórum Evolución, during the afternoon. This event also reinforced the message of regional commitment to the energy transition.
Apria and the integration of fuel cells into e-bike batteries
Another interesting example is the work developed by Apria in the field of adaptation from hydrogen fuel cells to electric bicyclesThis project is a continuation of previous initiatives such as PEMFC-SUDOE and H-Bike-2-Ride, which had already achieved relevant results, including the Aveiro Urban Challenges award in the category “Bicycle powered by hydrogen fuel cells”.
Thanks to that recognition, it was possible to participate in Aveiro Tech Week, where the company Veolia held a public demonstration of the bicycle's operation with fuel cell, highlighting the technical feasibility of the system.
In recent months, Apria has focused its efforts on perfect the prototype, achieving improvements such as optimized connectivity between the hydrogen storage system and the fuel cell itself, so that the energy flow is more efficient and stable.
Another line of work has been the compact control system designwhich has been integrated into a portable touchscreen. This allows the user to manage key system parameters, monitor consumption and hydrogen tank status, and have much more intuitive control of the entire system.
The company maintains a clear commitment to the Continuous improvement and innovation in these types of solutions, and has acknowledged the work of researchers like Bruno Mier Obregón, who have contributed to advancing these technologies during their time at the company. These efforts align with analyses on key projects and technological advances in the industry.
Classic electric bike vs hydrogen bike
To fully understand where hydrogen bicycles fit in, it's helpful to compare their proposal with that of... conventional electric bicycleswhich are already a mature and widespread product in the market.
The electric bicycle was born as a response to several needs: to offer a a healthy, economical and respectful means of transport with the environment, serve as an alternative to cars and public transport on urban journeys, and make cycling easier for those who are less physically fit or face complicated terrain.
Over time, however, some have come to light disadvantages associated with e-bikesThe most obvious drawback is the increased weight due to the motor, battery, and electronics. This makes it more difficult to handle when riding without assistance or when carrying the bike up stairs, taking it on a train, or storing it at home.
Another point is that, although the offer has expanded considerably, The prices of many e-bikes remain high. And they haven't always decreased as quickly as one might expect. Added to this is the long battery charging time and the fact that a high-value electric bicycle becomes a very attractive target for thieves, making it necessary to invest in good security systems.
In this context, it was only a matter of time before manufacturers started looking technological alternativesHydrogen-powered bicycles are born precisely to try to answer some of these problems: minimal "refueling" times, great autonomy with relatively light tanks and possibilities of intensive use in rental fleets or urban services.
In models like the Alpha Neo, the user can refuel in two minutes and travel between 120 and 150 km, while on HydroRide's Hyrid bikes, changing or refilling the tank can be done in just a few seconds, allowing you to keep pedaling. These kinds of figures are especially interesting for rental services, last-mile delivery, or shared use, where the bike can't spend hours plugged in waiting for the next group of users.
On the other hand, fuel cell technology still involves high costs and some complexity in the storage and distribution of hydrogen. This means that, for now, the hydrogen bicycle doesn't seem destined to become the preferred option for most private users in the short term, especially in countries where hydrogen infrastructure is practically nonexistent.
On the other hand, it does make sense as niche solution for professional fleets: urban rental companies that can install their own hydrogen microstation, municipal shared mobility projects, university campuses, technology parks or even delivery services that operate in well-defined areas and can centralize refueling.
Technical and operational advantages of the hydrogen bicycle
Although each model and project has its own particularities, several can be identified. common advantages of hydrogen bicycles compared to conventional electricity providers.
The first one is refueling timeChanging or refilling a hydrogen tank usually takes from a few seconds to a couple of minutes, far less than the hours needed to fully recharge a lithium battery using a standard plug.
The second is the autonomy per unit of weightHydrogen has a very high energy density, which allows many kilometers to be traveled with relatively small amounts of gas (20 g in the case of the Burgos project, about 67 g in the Alpha Neo), provided that the fuel cell system is properly sized.
Third, many hydrogen solutions, especially those that use storage in metal hydridesThey operate at lower pressures than those typical of heavy vehicle hydrogen refueling stations, increasing safety and simplifying some of the necessary infrastructure.
From an environmental perspective, both electric and hydrogen bicycles are viable options. low carbon footprint in useBut in the case of electrolyzers, there is the added possibility of storing surplus renewable production and using it later as mobility energy, as proposed in projects such as the one in Burgos.
Finally, in intensive use scenarios (rental fleets, deliveries, municipal services), the combination of zero local emissions, high vehicle availability and fast charging This can make hydrogen bikes economically viable in the medium term, especially if microstations or domestic generators like those from HydroRide are implemented.
Current challenges: price, infrastructure and market maturity
Along with the advantages, there are also major challenges that hinder A mass adoption of hydrogen bicycles is anticipated. The first obstacle is obvious: price. Many of the models presented are positioned in very high price ranges, competing with luxury e-bikes that offer superior cycling equipment.
Developing, certifying, and manufacturing fuel cell and hydrogen storage systems in such compact formats implies heavy investmentsAnd that's reflected in the final cost. Manufacturers like Pragma have opted for long-term rental schemes precisely to make that economic barrier to entry more manageable.
The second major obstacle is the lack of hydrogen infrastructure in most cities. The fact that a bike can refuel in two minutes isn't very useful if the user doesn't have a nearby hydrogen refueling station or an accessible micro-station; deployment status and network is crucial for its mass adoption.
Meanwhile, the market for battery-powered electric bicycles continues to grow and maturing very quicklyWith constant improvements in energy density, fast charging systems, increasingly competitive prices, and a huge range of products from basic models to premium ranges, competing with such a well-established ecosystem is no easy task.
Therefore, it doesn't seem that hydrogen bicycles are going to displace conventional e-bikes in the short term. Rather, they aim to become a complementary solution for certain niches: rental companies, public services, technology demonstration projects, and very specific users who highly value autonomy and ultra-fast refueling.
Even so, the development of these projects—from the Swiss Hyrid to the Burgos prototype or the French Alpha Neo—is serving to accelerate innovation in fuel cells, in the safe storage of hydrogen and in the integration of these systems into light vehicles, something that will likely have an impact on other mobility applications in the future.
Everything indicates that the Hydrogen bicycles will remain a niche technology for some time.This is very useful for showcasing the potential of green hydrogen, for educational and R&D projects, and for some professional fleets that can afford the infrastructure investment. As fuel cell costs decrease, a wider network of hydrogen refueling stations is deployed, and low-pressure storage systems are refined, its role could become increasingly important in sustainable urban mobility and complement, rather than replace, the enormous traditional electric bicycle market.
