This is the first vehicle of its kind. This vehicle will push back more than 500 RJs on just five gallons of diesel. It will push back more than 50 aircraft on just an overnight charge and $2 of electricity. US AIR/Piedmont divisions is the launch customer and is savings fuel every day. We see in there out stations, they will use only five to 10 gallons of diesel a year.There is no expensive charger required, they use 110 or 220 volt onboard chargers. This allows them to ship the units anywhere in the us with out having to install a charger station.