Hmm, your math is surprising. Let's suppose the leaf has the 30kwh battery. .29*30 = $8.70. You can drive 80-100, say 90 miles. California Gas Prices .com says

Hmm, your math is surprising. Let's suppose the leaf has the 30kwh battery. .29*30 = $8.70. You can drive 80-100, say 90 miles. California Gas Prices .com says the avg price of gas in cali is $3.15. Suppose you have a high efficiency car that gets 30 mpg. 90 miles is 3 gallons or 3x3.15 = $9.45, so pretty close. I suppose if you have a prius you get better than that, but most cars dont do that well. Also you'll have maintenance prices that are high on gas. But with that high electricity charge it makes them closer than you'd think. In Washington state our prices avg out to 11.x cents per kwh, without any special pricing, and I get the all green power option.