JALVASUB Engineering

Clean energy 

At JALVASUB Engineering we develop and supply propulsion systems based on Hydrogen new technologies and our fuel cells.


Hydrogen is one of the best ways to store energy and its combustion only by-product is water.


More than 50% efficiency



Energy density

Our fuel cells are the most powerful



Reduced cost due to the ultra-low platinum content

Working mode

High and low temperature PEM 


Compatible with Oxygen and air and also with pure Oxygen and Hydrogen-rich gas

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HYCOGEN selected as a highly innovative product

HYCOGEN selected as a highly innovative product

JAVALSUB's HYCOGEN has been selected as a highly innovative new product by Océano Azul and the Galician Innovation Agency (GAIN) in the International Competition for startups 2017 "Blue Ocean Innovation 4". JALVASUB offers energy systems based on fuel cells and...

Clean. Efficient. Energy

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