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They either used an astronomical amount of electricity, or they didn't actually measure the recharges: 100 miles on 39kWh is about 2.56kWh/mile. The Volt is supposed to get 25-50 miles per charge, and it has about 8.8kWh usable, by most reports; so that is 2.84-5.68kWh/mile. Which is much higher...
Or they charged it 2 or 3 times and just guessed at the total as 16kWh per charge? At the proverbial 40 miles per charge it is a total of 22kWh to go the 100 miles.
Someone on ABG also pointed out that the highest electrical rate in the country is in Hawaii: 27.7 cents per kWh; so where they paid 31 cents per kWh is also questionable.
I've run the numbers comparing the RAV4 EV to the RAV4 ICE at 19 cents per kWh /100 miles per charge (what we pay here, which is much higher than the national average of about 9 cents?) and $2.75 gallon / 24MPG, plus the regular maintenance:
The EV saves about $12,000 per 100K miles, and since it is likely that lithium batteries will last at least 200K miles (as the NiMH batteries have), you will most likely save way more money than a replacement battery pack will cost you in the future. Plus, the EV will keep on driving with that replacement pack.
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