The technology of electric cars has not been mastered. In particular, the problem of recharging the new energy vehicles on a daily basis is a sticking point. While various technologies, from electric highways to solar-electricity panels on cars’ roofs, are being tested, the power problem will persist. Predictions that within a decade, electric-vehicle drivers will have a range of vehicle choices is not supported by the trend. Further, business models to support these emerging charging technologies have yet to be proven.