In reply to Jed Rothwell's message of Thu, 16 Mar 2006 19:01:36 -0500: Hi, [snip] >I forgot about charger efficiency, but this spreadsheet basically >confirms my estimate. Plug in the numbers for today's cost of fuel >and the average distance driven (11,766 miles). See: > >http://www.ccds.charlotte.nc.us/~jarrett/EV/cost.php
If the batteries are connected in series such that the total voltage roughly equals that of the grid, then no transformer is necessary, and the "charger efficiency" is increased. Regards, Robin van Spaandonk http://users.bigpond.net.au/rvanspaa/ Competition provides the motivation, Cooperation provides the means.
