With apologies to Wyclef and Lupe, the answer to "Are you ready to ride?" may be "yeah, maybe sometime tomorrow." Blogs Engadget and AutoBlogGreen have picked up a back-of-the-envelope calculation estimating the charge time on the all-electric Tesla roadster to be 30+ hours from a standard wall outlet. While a regular WD 5-15 provides 15 amps at 125 volts, Tesla's estimate of a 4-hour charge time is based on 80 amps at 220 volts. In addition, many older homes have circuit breaker boxes that can handle 100 amps total. While the plug originated the phase "plug-and-play," the electrical and automotive industries are going to have to revisit the lowly wall outlet standards if consumers are going to adopt PHEVs or EVs in any significant number.


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