Power stored in electric cars could be sent back to the grid — thereby supporting the grid and acting as a potential storage for clean energy – but it will only be economically viable if we upgrade the system first. In a new paper in Energy Policy, two scientists show how their seemingly contradictory findings actually point to the same outcome and recommendations: that pumping energy back into the grid using today’s technology can damage car batteries, but with improvements in the system it has the potential to provide valuable clean energy — and improve battery life in the process.
Two recent studies, one by Kotub Uddin at the University of Warwick in the UK and the other by Matthieu Dubarry at the Hawai‘i Natural Energy Institute (HNEI), seem contradictory, with one suggesting that V2G degrades car batteries and the other that it improves battery life. But the two scientists worked together to look at how their studies overlap, showing that they actually come to the same conclusion.
Read more at PhysOrg.