Abstract: A system and method can track alternative fuel based travel in alternative fuel vehicles. The system can include an alternative fuel based odometer or “green odometer” which may track distance traveled while a hybrid vehicle, such as PHEV, is only powered by an alternative fuel or power, such as electricity. This green odometer can track credits or incentives earned since the last alternative fuel reimbursement or credit given to the vehicle owner as well as the total reimbursements or credits earned over an alternative fuel vehicle's life. The total reimbursements or credits earned over the alternative fuel vehicle's life could be used as an additional measure of intrinsic value for the alternative fuel vehicle.

Abstract: A method and system provides for the charging of electric vehicles according to user defined parameters. The method and system can include an enhanced thermostat, personal computer, and/or an electric vehicle charger which can receive various user defined vehicle charging parameters such as an initial price set point at which to start the charging of an electric vehicle. Another charging parameter can include one or more price offsets relative to the initial set point that can be provided by a user or generated by a computer program. The price offsets allow charging of an electric vehicle at prices above the desired initial price set point when the time remaining to charge an electric vehicle has diminished and the desired initial price set point has not been reached by the energy market. The price offsets can be assigned according to predetermined increments of time, such as an on an hourly basis.