Here's the deal in layman's terms,

They've figured out how to create a biodiesel or alcohol fuel and artificially inject hydrogen to increase its energy content.

Hydrogen is easy and cheap to produce. It can come from many sources but our most common are electric and natural gas. Hydrogen can be pulled right out of water through electrolysis or obtained from natural gas by a process called steam reforming.

Electrolysis can come from any energy source including hydro, solar, nuclear, or wind as well as dirty sources like coal and others.

Natural gas is plentiful but injects green house gasses into our atmosphere.

Our capacity for wind generation of static power requirements is not even tapped yet.

Our dynamic requirements are all solved with liquid fuels because of the energy density factor. Liquid fuels are the way to go until we can come up with something even more dense like a solid. (they are getting there). One guy has a hydrogen gas tank that is the same size as a conventional car tank, weighs about the same and can store 50% more energy than the same amount of gas.. The problem? It requires amonia. Super dangerous in even small amounts.

Well, for now its gotta be biodiesel for me.