Energy Producing Roads Made From Solar Cells and Glass May Be The Solution

Although Scott Brusaw’s company, Solar Roadways, is based out of his house in Idaho and in the home electronics workshop he built next to it with the income from his consulting, it may hold the key to solving climate change and global warming.

Solar Roadways is still in the concept phase, built on Brusaw’s childhood fascination with an electric race car game called slot cars. The idea of cars running on electric roads stayed with him as he went on to earn his Master’s degree in electrical engineering. As global warming became established science, his wife Julie suggested he turn his obsession with electric roads into a way to conserve fuel and reduce pollution. Brusaw came up with the idea of a road that produced its own electricity, a solar highway for energy independence.
One of the nation’s leading authorities on solar energy, Nate Lewis of Caltech, has calculated that covering 1.7% of the land surface of the United States with 10 percent efficient solar energy converters could supply all our current national energy demand. As it happens, this is roughly the same amount of land that is devoted to the nation’s interstate highway system. Lewis believes that covering a large, barren section of some of the western states with solar panels is the best solution to our energy needs, but we would need a photovoltaic material almost as cheap as paint to make it cost competitive with fossil fuels, and we would still need to transport the energy around the country.

In Brusaw’s Solar Roadways concept, instead of covering a large area of the Southwest with solar arrays, all of our roads would be paved with glass panels that could collect and distribute solar energy. Sunlight would shine through the surface onto a middle layer of solar cells. The solar cells would produce electric energy to light the road at night and heat it in winter, with enough leftover electricity to power homes and businesses. Brusaw estimates that each mile of solar panels could power 500 homes.

Brusaw’s Rationale for Solar Roadways includes: