> From: [email protected] [mailto:[email protected]] > Sent: Tuesday, February 28, 2012 6:06 PM > > currently you take the DC input (solar), run it through an inverter to > feed it to a UPS, to convert it to DC (to charge the batteries), to > convert back to AC to run to the power supply in the PC to convert back to > various DC levels to use inside the machine. > > While AC->DC converters are ~90% efficient, DC -> AC inverters are less > so, topping out around 70-80% efficiency. > > It seems like it should be possible to do a lot better.
I know a hermit, a masters of EE, who lives in the woods in NH. He lives so far out in the woods, he couldn't get the electric company to install a power line. But he got the phone company to install a phone line. So he uses the phone line to charge batteries, and he runs almost exclusively 12V DC appliances (which are easy to obtain, thanks to mobile America... As in RV's... *sigh* I guess the term has changed now...) Anyway, long story short, yes it's absolutely possible to feed things with DC, and do it efficiently. Your main obstacles are the Fridge, the Air conditioner, the Washing machine and dryer. All of which have propane-powered alternatives. (or maybe even natural gas) _______________________________________________ Tech mailing list [email protected] https://lists.lopsa.org/cgi-bin/mailman/listinfo/tech This list provided by the League of Professional System Administrators http://lopsa.org/
