Zero point energy is what you just said. It's free energy, or damn near free energy. It would cost a penny on the penny for everyone. Its been a minute since I've read up on it so I'm a little rusty, but basically either you can transfer energy through the ether (not 100% sure what that is off the top of my head), or you can draw an infinite amount of energy from the ether. It's really fascinating! He did a lot of experiments with energy transfer without the use of electrical wires, and that bore the death ray. Basically you can shoot a ray of a plasma type substance in a single precise blast. You should look into it! I need to brush up myself kek