Now that Bob has added the power Reactor 3, fueled by deuterium fuel cells, can use that deuterium for your fuel cells (is way harder to obtain than the normal Bob hydrogen, I'd say it's even harder than your hydrogen), only if metals, chemicals, intermediates and Bob's power are installed. That way one wouldnt have to mess with different kind of hydrogens (if those two Bob mods aren't installed there would be just one hydrogen, yours)