Here is a quote from a FOX article:

Plant flowers in the old SUV — Chevy’s betting America will get turned on by its electric Volt.

Automaking giant General Motors on Tuesday said it was preparing to cut production of gas-guzzling SUVs while clearing the road for the electric hybrid Volt.

The plug-in vehicle, introduced as a concept car in January 2007, will be powered by a lithium-ion battery that can be recharged either via a regular electrical socket when parked or by an onboard generator while driving.

Read entire FOX article here.

Electricity can be produced by alternative methods and then used to charge this vehicle.