> ...the other seven Model S sedans were unattended, a sign that their owners may be picking up items at the nearby shopping center while their cars charged. The two drivers needing to charge "were just waiting, waiting, waiting."
Bottom line, anyone who buys an EV with the idea of public charging probably bought the wrong car. EV's charge while parked and cars spend about 21 hours a day parked. There can never be enough available public chrgers to support say 100 million EV's on the road.. Sure, there are what, 100,000 gas stations in the USA. Each one with 4 to 8 dual sided hoses. That's about 1 MILLION hoses. And each hose can fuel say 10 cars an hour, times 10 nominal working hours a day, so that is a refueling capacity of about 100 MILLION gas cars. But, a gas-up lasts a week, so you have a 7-to-1 chance of finding an empty pump.. But an EV charge only lasts a day and EV's usually have to charge everyday. And typical Public L2's will charge in about 2 h ours, or about 5 cars a day. So to serve 100 million EV's it will take 20 million public chargers for the same grade of service. But by definition, that means they are always 100% in use. Meaning exactly what is occurring, ... the slots are all full. So they have to overbuild maybe a factor of 2 to make sure you have a 50% chance of finding an empty one. SO that means dependency on public charging would need maybe 40 million public Charging stations (400 times more than gas stations). AND 20 million dedicated parking spots. You see the problem. Whereas those that understand that EV's are best charged at home, ALREADY have available over 200 million charging spots (at home in their driveway). (67% of Americans live in single family detached homes (with an outlet)). So again, anyone who buys, or sells, or promtes EV's with the idea of public charging for anything other than an emergency simply doesn't get it. (Generally... there are always exceptions). Bob, WB4APR _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)
