In California—the national leader in electric cars with more than 1 million plug-in vehicles—EV charging currently accounts for less than 1 percent of the grid’s total load during peak hours. In 2030, when the number of EVs in California is expected to surpass 5 million, charging is projected to account for less than 5 percent of that load, said Buckley, who described it as a “small amount” of added demand.
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hah, similar to 4% of CO2 level increase