Plugging electric vehicles (EVs) into the grid could cut £270m a year off the cost of running the UK power system by 2030, a new report has claimed. The projected savings are included in a new analysis of the long-term viability of Vehicle to Grid (V2G) technology, which allows EVs to support the electricity network by storing power when it is abundant then feeding it back into the grid at peak times. The study, compiled by a consortium of experts including Cenex, Element Energy, Energy Systems Catapult, National Grid ESO, Nissan, Moixa and Western Power Distribution, looked at both near-term niche and enduring large-scale opportunities for the use of V2G. The report estimates that V2G technology could help avoid £200m of investment in the distribution network by 2030 by reducing peak demand on the grid, compared with unmanaged charging. Modelling carried out by the consortium estimates that controlling when EVs charge could save £180m a year across the whole energy system by 2030, compared with unmanaged charging. It projects that V2G would increase annual savings by £40 to £90m. It found that a 7kW home V2G charger could earn £436 a year by providing services to support the power network, if it was plugged in 75% of the time. However, it shows that current plug-in rates appear to be low – at around 30%.
Edie 28th June 2019 read more »