Mark Bishop opens the hood of his Honda Insight, which he converted to run on electricity. | John Upton/Climate Central

Cleaner Electricity Grids Mean Electric Vehicles Are Really Making a Difference

Electric cars are only as clean as the source of energy they're plugged into — and Tennessee offers a lesson in how build a better clean-vehicle market.

Published On 05/25/2017
10:49 AM EDT
Knoxville resident Bill Williams behind the wheel of his Tesla sedan. | John Upton/Climate Central
Brian Blackmon, a sustainability project manager at the city of Knoxville, at an electric vehicle charging station in a downtown parking lot. | John Upton/Climate Central
Climate-Friendly Car Guide