It is a long way from 1/4 psi (delivery pressure into most homes) to 3600 psi. I should take some time and calculate the energy input required for compression, and see if it is at all comparable to the energy content of the natural gas.
Yes you should.
Electrical Electrical Supply: 240 VAC / 60 HZ. Electrical Consumption During Fueling: 0.8kwh (average). General Purpose Electrical Rating. http://www.wisegasinc.com/wg-phill.htm