This is a process where bacteria break down organic matter, they eat things, and they break it down into protons and electrons, and we put this in a specially designed fuel cell, kinda like a battery, where the bacteria are releasing electrons, and they're flowing in a circuit, and they're recombining with something in water, protons, to make hydrogen, so basically the bacteria eat food, we boost the energy they produce a little bit, and hydrogen is evolved from the reactor. 