Arney, you might want to hold off on buying stock. Let's see their electric bill for $0 first.

What they have there is no better than, and much more expensive than, the $5 resistive heating element in standard electric water heater. Which, by the way, is and always was 100% efficient in converting electrical energy to heat.

If, and that's a big "if", they are measuring the energy of the steam correctly, most likely they are making what Don Lancaster calls "Freshman EE Student Lab Mistake #1" - Incorrectly measuring AC electical power input.

Why don't they just route the steam back to a turbine which turns the pump. Spin the whole thing up with the electric motor, then pull the plug - it should keep running, right? C'mon guys, if you won't bother with the science, just convince all us skeptics by doing a simple demonstration.

Ditto for the other "inventions" in that video. Any time you hear that they are "pulsing" the electric current, it is a dead giveaway. People, even "scientists" invariably under-measure the true power in pulsed current.

Oh, and by the way - Water is not a fuel - its an ASH.