An internal combustion engine efficiency averages maybe 20% or so[1]. A combined cycle gas turbine power plant (running on natural gas) can reach 60% efficiency

An internal combustion engine efficiency averages maybe 20% or so[1]. A combined cycle gas turbine power plant (running on natural gas) can reach 60% efficiency (it seems most operate a bit lower, but still in the high 50s)[2]. An electric car might be 60% efficient from the point grid power is delivered to the point it reaches the wheels.[1] That gives a natural gas -> power at wheels efficiency of 36%, or 1.8x the internal combustion engine. [1]: https://www.fueleconomy.gov/feg/evtech.shtml https://www.fueleconomy.gov/feg/evtech.shtml [2]: http://www.powerengineeringint.com/articles/print/volume-18/issue-3/features/ccgt-breaking-the-60-per-cent-efficiency-barrier.html http://www.powerengineeringint.com/articles/print/volume-18/...