Hydrogen has proven to be a key to storing renewable energy and making heavy industry carbon-free. But there is a catch. The hydrogen is produced by electrolysis. Conventional alkaline electrolysis has poor efficiency. And the much more high-performing polymer electrolyte membrane (PEM) electrolysis requires rare earth metals. This is where Smoltek’s technology comes in. Our solution, presented in this whitepaper, makes the electrodes in PEM electrolysis up to three times more efficient while reducing the amount of precious metal needed.