With a smart grid, plug-in hybrid electric vehicles could have system benefits

Xcel Energy announced the results of a six-month study related to plug-in hybrid electric vehicles (PHEVs) and how an increase in their popularity may affect Colorado. The study found that PHEVs may result in a reduction of the overall expense of owning a vehicle and, with the help of smart-grid technologies, eliminate harmful vehicle emissions by up to 50 percent.