(Source: MARKETWIRE)
Two years after unveiling San Diego's first state-of-the-art plug-in hybrid vehicle, SDG&E said the third phase of its multi-year study reveals that plug-in hybrids offer significant improvements in gas mileage and reductions in emissions when compared with standard hybrid and gasoline vehicles.
SDG&E tested the performance of two 2007-model standard hybrid vehicles and then converted them into plug-in hybrids, using a lithium-ion battery conversion kit. In the most recent study, the prototype battery was replaced with a production-model battery. The same pool of drivers was used during vehicle evaluation.
When compared with the standard hybrid, the plug-in hybrid at 68 miles per gallon (MPG), achieved a 58-percent increase in gas mileage, a 37-percent decrease in carbon dioxide (CO2) tailpipe emissions, and a 10-percent reduction in fuel costs. When compared with a conventional gasoline-fueled vehicle that averages 22 MPG, the plug-in hybrid achieved a 68-percent reduction in tailpipe emissions and a 54-percent reduction in overall fuel costs.
The study findings were announced as state regulators and utilities met in San Francisco to discuss the role of utilities in advancing the electric and natural gas vehicle marketplace and fueling infrastructure.
Today, California's electricity capacity could recharge as many as 4 million plug-in hybrids when charged during off-peak hours when electricity use is low. The plug-in hybrid's fuel-cost savings over traditional gasoline-powered vehicles would save these 4 million consumers approximately $4.2 billion a year at today's average gasoline price of $3 per gallon when compared to 15 cents per kilowatt-hour of electricity for 14,400 miles driven annually.
With SDG&E's deployment of smart meter technology, the interface with these vehicles in the future will allow customers to schedule charging time and select the lowest rate for charging.
SDG&E said the study results confirm the viability of electricity as a clean and low-cost transportation fuel and validate the increased efficiencies of plug-in hybrid technology.
"California has the most aggressive greenhouse-gas reduction goals in the nation, with nearly 40 percent of those emissions coming from transportation," said Hal D. Snyder, vice president of customer solutions for SDG&E. "Integrating clean transportation alternatives, like plug-in hybrid and all-electric vehicles, will be critical to achieving the state's goals. SDG&E will do its part to help ensure the San Diego region is 'plug-in' ready when electric vehicles hit the road."
Original equipment manufacturer plug-in hybrids and all-electric vehicles are expected to be delivered to showroom floors across the nation in late 2010.
