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Old 11-25-2013, 01:59 PM   #3 (permalink)
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the costs of compressing it are not trivial when compared to electric vehicles.

per: Wise Gas Home Refueling

it looks like it takes about 2kwh per gallon equivalent to refuel w/CNG. A nissan leaf takes about 22kwh to recharge, and the cng still has a major efficiency hit when it gets converted into power in the ICE, so say 22kwh is ~2 gallons worth of cng. The cost of compression is very roughly 1/6 the available power of the cng.
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