Stephen LuntzMycobacterium smegmatis is the Huc enzyme (pronounced Huck), which can trap hydrogen down to sub-atmospheric concentrations and use it as an energy source. Moreover, they announce in their new paper, they have learned Huc’s structure and can place a sample of it in an electric circuit and make current flow. Hydrogen probably leaks in such places, creating higher ambient concentrations, and Greening said Huc might be able to capture it to provide clean power in substantial quantities when alternatives can’t