The number of miles an electric vehicle (EV) can go before it must be re-charged is its "range." You may be limited in how far you can drive by the availability of a charging station, and this limits the number of people who choose to buy an EV.
So "dynamic wireless charging" is being researched, i.e. the charging highway. It charges your EV as you drive, in a way similar to wireless internet access. One possibility is to use coils embedded in the highway, and they might be powered by solar cells.
With a cost of just (gulp) $2 million per mile, the nation's interstate roads could be equipped with this technology for only $80 billion!
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