I continue to read with optimism the PHEV (plug-in hybrid vehicle) concept, especially the Chevy Volt. TESLA also put out a paper a while back (July, 2006) regarding its entry. My question is this: At US $0.10-0.12 a kWh from my local utility, how much will it cost me to drive the Volt's fully charged 40 miles? Since I don't have any idea how many "miles per kWh" it takes, I can't make the calculation...and I've looked at BTU and megajoule equivalents and I now have a headache. -- Art F., Dallas, TX