One of the great things about photovoltaics is that all they need is an unobstructed piece of ground, and some basic maintenance, and they pump out electricity all day long. But finding a piece of ground that can be devoted solely to solar collectors can be a challenge, especially in the populated areas that need the power the most, so you will often find solar panels perched atop some structure, where they are exposed to higher winds, and are more difficult to maintain. But the solution to this problem might be on your way to work every day; in the unused spaces that surround our national grid of highways.
Up north, in Oregon, they have been building a some test examples of ‘solar highways‘ that are using the empty space around and alongside roads to generate electricity, and this has been a successful experiment. The solar highways are already supplying a considerable portion of the power that is needed to light a highway around Portland from light that falls on the highway itself. That project, having proven itself, has now spawned more in the area.
But, really, doesn’t it make more sense to build projects like this in places that have a bit more sun than overcast Oregon? What about places like California? If Republic Solar Highways has it’s way, this sensible plan can become a reality, and soon. They plan to use 65 acres of unused roadside land around highway 101 to build a 15-megawatt solar collection network, and with the backing of the California Department of Transportation the project seems on track to break ground within the next year.
Hopefully, this will be just the beginning. There is so much unused land around our nation’s roads that could be supplying a generous flow of electrons to the people around them, rather than just being a money sink. After all, most of this unused space has to be cleared and mowed regularly to prevent fires from breaking out and making a mess of travel. And, looking forward, there are multiple proposals for using the roads themselves as solar collectors. In fact, our roads are currently acting as such efficient solar collectors that they are changing the environment around them by putting off so much heat. There are certainly better uses for that energy, and it’s time we started collecting it.
Photo via Republic Solar Highways