**Description**
10 years ago, when talking about "decarbonization", it was still a taboo, something that was not seen close, and there were not even enough elements to consider it. Today, at the end of 2022, it is not just an option, but a necessity. The subject of hydrogen has been investigated for more than 20 years; In the mobility industry, it has always been an attractive element due to the combustion produced by hydrogen, since, when the molecules are released, its result is H2O in steam. This is how the alternative of using hydrogen as an abundant source of fuel is today a viable need that is becoming a reality. It all begins in 2016 when Angel Tamariz begins to develop a thesis project related to the construction of hydrogen fuel cells. After several attempts, a successful result was obtained for knowledge of materials and self-development of a H2 fuel cell. And this is how the Cellen project began, in 2018 when the project started building its own hydrogen fuel cell, to produce a certain power capacity in electricity, and thus feed the electric motors of a mobile product, in this case a UAV, which will have much higher capacities than any lithium battery UAV. It has taken us more than 5 years to develop the technology, but today the world is more prepared to be able to launch this final product on the market; We have business partners that are developing hydrogen charging points in different parts of the country, so the supply network around this clean fuel is becoming a reality. And this is how a project that began as a dream more than 10 years ago, today becomes a reality.

**Author(s) - ranked in descending order of contribution / as it should appear when published**
Francisco Bezanilla
Roberto Yelin
Angel Tamariz



Hydrogen Fuel Cell more than a solution

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