Utility V2G test with BMW shows electric cars can aid the grid

BMW i3 electric car charging in 'EV Charging Only' space, Santa Clarita, CA  [photo: Steve J. Myung]As the demand for electric cars grows, utility companies are considering their effect on local power grids—both positive and negative. Recently, California's PG&E and BMW recently wrapped up a pilot program testing experimental vehicle-to-grid technology to see if electric cars could actually aid the grid—and they did. The program...