I'm very excited about this trial. V2G has been talked about a lot in the recent months, but my concern, and I'm far from alone, is what impact will fluctuating charge and discharging have on battery life and performance. Will people really be happy for an external operator, albeit with permission, and some payment, to charge and discharge their batteries if there is a potential negative outcome. Will battery life and performance be affected by daily use in this way? Or is there a mechanism to protect each battery from constant partial charge/discharging? I'm looking forward to seeing more from this study.
V2G systems are centred on the concept of using EV batteries to offer grid services whilst they are connected through their charging ports. Businesses could, in theory, use the aggregated capacity of various EVs charging at their site to help power their own operations during peak pricing periods or participate in grid services tenders. Nissan earlier this month confirmed that it had installed a number of V2G charging systems at its R&D facility in Cranfield as part of an ongoing trial of the system it has produced alongside energy company Enel.