Scotland power boss: Peak charging could cause grid problems

Nissan Leaf in ScotlandVastly greater numbers of electric cars on United Kingdom roads could pose problems for the power supplies used to recharge them—if, that is, they all plug in during the day. Frank Mitchell, head of SP Energy Networks a unit of ScottishPower, said a rush to electric cars in the U.K. could burden the power grid if owners opt to charge those...