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.

[Via Digg]