Danish drivers of electric cars earn cash by feeding electricity back to the grid
London — Electric car owners are earning as much as $1,530 a year just by parking their vehicles and feeding excess power back into the grid. Trials in Denmark carried out by Nissan and Italy’s biggest utility Enel showed how batteries inside electric cars could help balance supply and demand at times, and provide a new revenue stream for those who own the vehicles. Technology linking vehicles to the grid marks another challenge for utilities already struggling to integrate wind and solar power into their distribution system. As the use of plug-in cars spreads, grid managers will have to pay closer attention to when motorists draw from the system and when they can smooth variable flows. "If you blindingly deploy in the market a massive number of electric cars without any visibility or control over the way they impact the electricity grid, you might create new problems," said Francisco Carranza, director of energy services at Nissan Europe, in an interview with Bloomberg New Energy F...
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