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Tuesday, July 31, 2007

SOLAR ROAD



Solar roadway: big black water heaters

If we are all going to fry because of global warming, at least get some cheaper hot water. The principle is the reverse of under-floor heating.

Instead of pumping hot water into a floor, the floor (or road, to be precise) heats the water.

Special pipes are laid on top of a grid frame, under the tarmac or asphalt, or whatever it is called in your neck of the woods.

Sunlight is absorbed by the wide, black road surface, which boosts the temperature of the water just beneath. This turns roads into massive solar hot water heaters.

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