J.D. Power says its new study, which will be updated and released monthly, tracks the progress of the EV shift by looking at millions of data points across 26 data sets.
It measures EVs against their internal combustion counterparts on a scale of 0 to 100 in six categories: interest, availability, adoption, affordability, infrastructure and experience.
A score of 100 means EVs have achieved parity with gasoline-powered cars. The top-line score, which averages the results in each category, was 47 in October, which represented the first complete data set. When the index launches in January, it will reflect November data.
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