It's a sad day when a significant amount of a nation's weather is produced by using fossil fuels to push blocks of metal through the air. But, as long as that artificial weather is there, you might as well harness it.
Wind speeds along highways are significantly higher than the national average of 10 mph so, it turns out, they are a great place to put wind turbines. As long as you can keep them close, but not too close, vertical axis wind turbines (like the ones in the graphic above) can generate a significant amount of power from the wind created by cars and trucks. A recent proposal published at Archinet from "Joe" at the university of Arizona, has Quiet Revolution wind turbines looming over traffic lanes doing just that.
While we'll never recover much of the energy wasted pushing air out of the way of a Hummer, even a fraction could be a significant source of power. Effectively increasing the mileage of every car on the road just a tiny bit per turbine.
Of course, the more logical thing to spend government subsidies on would be more aerodynamic vehicles and less interstate travel. But, as long as we're wasting all that energy anyway, we might as well recover a bit of it.
written by Just Another Person With A Brain, May 06, 2009
|< Prev||Next >|