[Christ]

I'm sorry, with all due respect, I think it would be in your best interests to do some research regarding terminology, and possibly the laws of physics. I don't think you're fully addressing the topic being discussed.

The electric company doesn't "lose" excess energy, they don't even produce it. The efficiency of the generators goes up or down with the load applied to them. They can only produce as much energy as is demanded from them, but use more or less fuel per KWh depending on the load which they face.

If the electric company could produce excess electricity and store it (like in batteries in your house, at night), electricity prices would probably level out (not likely, actually, due to economy and greed), and demand for power wouldn't have a peak and a ebb stage.

The point is, nothing is ever just "lost". Energy can not be created nor destroyed, it can only change forms. The truth of physics is that all things are Information. The Information of the Universe is truly Universal, it cannot be created, destroyed, or likewise altered. It can take any form available in the Universe, and be converted to any other form in the Universe. The term "loss" regarding conversions is a bit of a misnomer. There is never actually a "loss" during conversion, there is only another form of energy converted, other than that which you intended to convert.

For instance, when you make fire for heat, you only want heat. Light is a by-product. You want as little light as possible for the best heat extraction from a fire, so there is a trade off there. There was never an excess of energy, nor was there ever a loss of energy.

Once again, we're already aware that it takes more energy to make the H2 than you get out of burning it or converting it via other means. The exercise in question here isn't whether or not we can create overunity with electrolysis, it's whether or not the hydrogen aides the efficiency of hydrocarbon combustion enough to make it's onboard generation worthwhile, by means of grid-charged batteries (which are, obviously, more weight and energy expended during acceleration and cruise, more significantly during acceleration).

I'm afraid you've still missed the question of the topic at hand.