thomas malloy wrote: > Jed Rothwell wrote: > > > A power utility is installing gigantic sodium sulfur batteries that > > store 7 MWH each. It also plans to use customer's PHEV as temporary > > storage. See: > > > Interesting post Jed. The price seems high, and the 80% of energy back > doesn't sound so good either. >
But then, I wonder if it might still be better than the reported 60% loss through transmission lines just to get the electricity from the average power plant to my wall socket. Of course, this is assuming strategic deployment of these Double Decker sized sodium sulfur batteries will eventually enable shorter transmission line distances. Certainly not a done deal. It's encouraging that the article states that "...one battery would hold about as much energy as a single large wind machine could produce in a day." OTOH, looking at the PHEV angle where you would have to plug in 1000 hybrid cars to match the power of one of a single Double Decker sized sodium sulfur battery sounds more like a feel-good publicity stunt. Regards, Steven Vincent Johnson www.OrionWorks.com
