Just an FYI, eMotorWerks, which makes the JuiceBox is also working in conjunction with the CPUC for three of the major Electricity suppliers for a PEV Pilot program...if you are in the area, it might be of interest for you to check it out. The JuiceBox would be free to the user. We just signed up, and they are shipping us the watt box to use with our AeroVironment until the Juicebox is UL approved, which should be anytime, now.
http://emotorwerks.com/sg-pilot