PG&E's Car-to-Grid Technology Demo

Pacific Gas & Electric, one of California's electric utilities, recently held a demo of V2G Technology, or vehicle to grid technology, where battery charging stations not only charge up electric vehicles and plug-in hybrid vehicles, but enable these vehicles to also sell power back to the grid.

"In addition to reducing energy costs, V2G technology could provide the ability for customers to sell energy back to the utility during hot afternoons when demand is highest and most costly to avoid blackouts," Pacific Gas & Electric Co. said in a statement. "Vehicle owners will select a price threshold at which they are willing to sell energy, and when the price reaches this point the utility will be able to automatically draw energy out of the vehicle, leaving enough for the drive home if necessary. The utility's customers would then earn credit in the amount of energy used by the utility toward their monthly energy bill."

(Source: InsideLine)