Electric Vehicles, Advanced Chargers, and Maximizing the Value of the Pacific Northwest's Electricity Grid
A new study examining the environmental impacts of electric vehicle charging demonstrates that the Pacific Northwest is ideally suited to maximize the environmental benefits of an electrified vehicle fleet, further underscoring the already well-documented benefits of electrifying the region's transportation system. Further, if combined with "smart" recharging technology developed by the Pacific Northwest National Laboratory ("PNNL"), electric vehicles offer a means for maximizing the value of the region's electric grid and improving the ability to integrate variable renewable resources like wind, with substantial economic benefits for the region.
The new study, "A Roadmap to Climate-Friendly Cars: 2013," released last week by the Climate Central think-tank, critically examines one of the key environmental questions surrounding electric vehicles: does shifting from from petroleum-fueled vehicles to electric vehicles produce substantial environmental gains when the impacts of producing the electricity are taken into account? Because of the predominance of hydropower and, to a lesser extent, wind and other renewables, electric vehicles are by far the best choice in this region. In fact, the study finds that a gas-powered car would need to achieve fuel efficiency of 383 miles per gallon to attain the same environmental benefits as a electric car charged in Washington. In Oregon, the number is 278 mpg and in Idaho, 202 mpg. The strong advantage for electric vehicles holds up even when the full life-cycle carbon costs of manufacturing the vehicle and battery are taken into account.