Hystar is an innovative, well financed company that got our start as a spin-off from SINTEF, one of Europe’s largest independent research organizations. We’re a fast growing, diverse team of passionate people, developing game-changing PEM electrolysers.
We develop the world’s most efficient PEM electrolysers, making the production of hydrogen from renewable electricity significantly more affordable and thereby, more accessible.


Green hydrogen is the key to making the energy transition happen. As a highly efficient energy carrier, green hydrogen has the potential to reduce greenhouse gas emission across many applications.
At Hystar, we believe that the future of green hydrogen is “written in the stars.” This is because the stars themselves – and in fact, nearly the entire universe, if you add up all the atoms – are made up of mostly hydrogen.
Our patented technology combines knowledge from the fuel cell industry with electrolyser technology, to make a solution that is safer – and more efficient – than previous state-of-the-art designs.
The result: a simple – yet unique – solution, able to produce at least three times more hydrogen than a conventional PEM electrolyser, with world class efficiency.