Just over a year ago, we passed off a far-out proposal that would turn highways into wind farms
. Now, however, the state of Oregon is proving that such feats are actually within reach as it breaks ground on the first so-called "solar highway" demonstration project. The project will be installed at the Interstate 5 and Interstate 205 interchange in Tualatin, where it will cover around 8,000 square feet and produce 112,000 kilowatt hours per year. The total cost for the 104-kilowatt solar photovoltaic system is $1.3 million, and believe it or not, it should be completed and operational in December of this year.