Hmm. 20kW at 90% efficiency means they have 2kW in losses, presumably as heat. That means it will put out more heat than a typical space heater (1.5kW). Nice to heat the garage in the winter, I suppose. Kind of ugly in the summer, though.
Mike On April 8, 2016 1:02:04 AM MDT, brucedp5 via EV <[email protected]> wrote: > > >% @20kW 0-80% SOC is a 2hr charge on Tesla-3 44kWh pack, or 3hrs on >Bolt >60kWh pack (figures will change when EVs are in production) % > >http://www.engadget.com/2016/04/03/20kw-wireless-ev-charging/ >Wireless charging system for EVs is nearly as good as plugging in >A 20-kilowatt system is that much closer to making EV charging pads a >practical reality. >[20160403] Jon Fingas > >[image / Oak Ridge National Laboratory >http://o.aolcdn.com/hss/storage/midas/dda5140369b4fd49b14cf243d8a6571f/203633651/ornl-wireless-ev-charging.jpg > > >video >https://youtu.be/NP-SACM3jtQ >ORNL surges forward with 20-kilowatt wireless charging for electric >vehicles >Oak Ridge National Laboratory Mar 31, 2016 >A 20-kilowatt wireless charging system demonstrated at Department of >Energy’s Oak Ridge National Laboratory has achieved 90 percent >efficiency >and at three times the rate of the plug-in systems commonly used for >electric vehicles today ... >] > >Wireless charging for electric cars is already affordable, but it's >still >pretty limited: it's not the quickest option, and it's not even on the >radar >if you're driving large vehicles like trucks. Scientists at Oak Ridge >National Laboratory are close to licking those problems once and for >all, >though. They've developed a 20-kilowatt wireless charging system that, >at 90 >percent efficiency, should be much more practical for topping up your >car >when pulling into the garage. The new design (which includes a mix of >custom >inversion, isolation transformers and electronics) is safe despite all >the >added electricity, since its magnetic fields drop off rapidly. > > _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Read EVAngel's EV News at http://evdl.org/evln/ Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
