The UK's national grid predicts that an overnight switch to EVs would only increase demand by "around 10 per cent" (https://www.nationalgrid.com/stories/journey

The UK's national grid predicts that an overnight switch to EVs would only increase demand by "around 10 per cent" (https://www.nationalgrid.com/stories/journey-to-net-zero/5-myths-about-electric-vehicles-busted https://www.nationalgrid.com/stories/journey-to-net-zero/5-m...). On the other hand the low-voltage network may need to be upgraded to cope with the increased energy demand. Here smart charging can reduce the load, and associated costs, for a number of years (https://www.kaluza.com/blog-busting-the-myth-ev-smart-charging-and-secondary-peaks/ https://www.kaluza.com/blog-busting-the-myth-ev-smart-chargi...). Assuming that the intially purchase price of EVs reach parity with ICE vehicles, the consumer should save money, in an EV only world IF the consumer is able to use smart charging to take advantage of fluctuations in energy prices. In addition to this Vehicle-to-Grid (V2G) technology (that allows the consumer to sell energy to the grid during times of high demand + low generation) will generate income (https://www.edie.net/news/8/-World-s-largest--V2G-trial-finds-that-motorists-could-cut--725-off-monthly-electricity-bills/ https://www.edie.net/news/8/-World-s-largest--V2G-trial-find...) further increasing the affordability of EVs in comparison to hydrogen vehicles.