Check out how much its going to cost to charge that Volt:
Battery system: lithium-ion
Energy: 16 kWh (minimum)
Peak power: 130 to 140 kW
Voltage: 320 to 350
100% recharge time: 110-volt outlet: 6 to 6.5 hours
Max. electrical power: 130 to 140 kW
Max. mechanical power: 120 kW
Continuous electrical power: 45 kW
Continuous mechanical power: 40 kW
And here is what SCE will charge you to 'fill er up'.
http://www.sce.com/NR/sc3/tm2/pdf/ce12-12.pdf
Plus with normal seasonal increases and the expected 20% rate increase for electric services coming...