Published on August 18th, 2008 | by Ariel Schwartz48
New Technology Could Make Roads a Solar Energy Source
August 18th, 2008 by Ariel Schwartz
The most efficient form of renewable energy may be right underneath us. Researchers at Worchester Polytechnic Institute (WPI) in Massachusetts announced today that they have discovered a method to use road surfaces for solar collection.
The key is using the plentiful heat absorbed by asphalt pavement. By experimenting with different asphalt compositions, the team discovered that heat absorption in pavement can be significantly increased with the addition of highly conductive aggregates such as quartzite. Heat exchangers could be placed a few centimeters under the pavement to collect and use solar energy.
According to WPI, retrofitting roads and parking lots could turn them into massive solar farms, potentially eliminating the need independently constructed solar farms. This would be a huge boon for the solar energy industry, which currently uses huge swaths of land for its projects. The WPI research might also make solar viable in places where it might not be otherwise, as asphalt absorbs more heat than many other surfaces.
Pretty soon, you might just appreciate your local highway a little more.
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