just note that DC is much more dangerous than AC. 50V DC can kill you more surely than 220V AC... with DC you don't have a chance to escape the muscle locking... (I've learned that in electrotechnics courses, when I was young)
AC also have the big advantage to be easily transformed by transformers (thanks to Tesla). note that for small CHP you can easily make an asynchronous generator, that use the grid to set the frequency, and can pump energy at the good rhythm. the disadvantage of async generator is that they produce reactive power in the grid (the current wave phase is late compared to voltage wave phase- the cos phi get awful), and the grid can get inefficient (current is much biger than whet is neede to transport the real energy)... thus probably there have to be some phase corrector. today, like done with PC power supply or factories, it can be done with electronics at a lower price than old methods (capacitors). One can also use electronic wave synthesizers(like UPS) that are fed by a non clocked AC generator,maybe rectified, but I imagine it is more expensive than Async+corrector. for me, LENR home/SMB generators will make smart grid develop strongly. small electricity producers have to cooperate with the grid or die. par of US grid instability problem is the lack of cooperation, and at least communication. in the 90s I've read diagnostic in IEEE spectrum about one big grash around the rocky montains (california on one side, ... rest I've forgotten)... they says that the best method was sovietic, with one electric war room for all USSR, that succed in keepin the grid not too bad, despite their crazy trans-Siberian grid and soviet quality of infrastructure. with a gris, centralization is needed. hard to walk on a circus ball, if you have multiple independent brains. 2011/11/30 Jed Rothwell <[email protected]> > I wrote: > > >> Soon there will be no such thing as AC, and no power company. > > > I meant there will be no external power sources outside the building (no > power company or distribution network), and I also meant that all power > will be DC, not AC, to reduce the danger of electrocution. >
