Hello... I have to agree that the original motor/alternator scheme presented, just won't work, even if one contemplates putting battery storage in the loop and ac/dc conversion here and there. Losses mount as each component is added, _and_ as the old saying goes, "You can't get more out than you put in.".
HOWEVER, I _am_ a believer in "perpetual-motion-plus", as I call it. It is possible to design a multi-component system that actually will not only operate continuously, with just routine monitoring. It will actually put out free, useable energy (free, ignoring the cost of buidling this thing). This is with just good old honest physics... no magic. I'm currently optimizing the design of such a system. No more details... until it's safely patented, but I will say this: this "system" is HUGE and expensive. It *may* be worth it for an average homeowner, but I'm going with wind, myself, for the time-being. But, as for the huge-ness of it, it is not at all beyond what a utility company would be able to easily handle, mechanically. If you have the physical space required (the average back-yard is more than enough) and the capital to put into a significant, long-term investment, then yes, you could use my system (it would be great for someone living in a utility-intertie state). Honestly, to build one of these things, kW-h/mo produced goes up quickly with dollars spent on increasing the size of the system, BUT, to build a small-net-output system is really not cost effective... yet, anyhow. Conversly, for the average off-gridder, you can buy standard components to get the power you need for a lot less dough.
Gee, I wonder why the utility companies aren't using something like my design? Surely, they have engineers just as smart as this one (me), who could have long ago put these units on-line. I'll leave the answering of that to someone who hates utility companies as much as I do and is more inclined to go on about politics than I.