User:Jmesserly/electric car efficiency figures


 * To run fully on electricity, the Volt can only discharge 50% of its battery. To preserve the battery life, full discharge must be avoided, so the generator kicks in after that..
 * This means that for Volt, the first 40 miles will require 8KWH, and since it's battery is 16KWH, it will be burning gas after that.
 * This means that the volt is gets 5 miles per KWH.
 * So for Oahu, you need only an 8KWH battery, and this will take you the required 20 mile roundtrip.


 * According to U.S. Department of Energy -Advanced Vehicle Testing Activity figures, it gets .2 KWH/Miles - about the same as the volt.

PHEV test results
Vegas, March 2008  HWFET means Highway Fuel Efficiency Test. UDDS= Urban Driving Test.
 * Renault Kangaroo (Battery only usage)
 * UDDS- .268 kwh/ mile
 * HWFETS - .155 kwh/ mile

Sources of information pn PHEVs

 * Technical Wiki on PHEVs- open source project for conversions
 * Calcars- a non profit advocacy group for PHEVs. Calcars PHEV news page