电动汽车能否为电网提供备用电源？

Analysis Green energy Can electric vehicles back up the grid? Electric vehicles could store electricity to share when demand peaks, but car companies disagree on the best way to do this, finds Alec Luhn AT LEAST 90 per cent of the electricity generation being built today is renewable. But solar and wind farms produce electricity only when the sun is shining and the wind is blowing, so the power supply will fluctuate more. A pilot project in the US state of Delaware has shown that owners of electric vehicles (EVs) could make thousands of dollars each year by allowing their parked cars to serve as part of a giant collective battery. …