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LED Backlit TVs

40% power reduction puts LED backlit TVs at the forefront of green technology. More on LED TVs.

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Seaweed farms

One seaweed farm may produce enough biofuel to supply 30% of Japan's fuel consumption. More on Seaweed farms.

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Heat Pumps

An incredibly efficient and technically elegant solution to heating and cooling. More on Heat Pumps.

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Arctic Ice Photos

Arctic ice and glacier photos were released last week by the Obama Administration. More on Arctic Ice.

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Endangered!

Not only are animals threat- ened with extinction, but also cities and islands. More on Endangered.

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Bleak Realities

Millions face difficult times in the countries most affected by global warming. More on Bleak Realities.

Tuesday

15Sep2009

Solar Trackers

Solar tracking devices, mounted with photovoltaic (PV) panels, allow the panels to exactly track the sun's path across the sky and can increase the yield of solar energy installations by as much as 40 percent compared to stationary panels. Solar trackers have been around since about 1980, but their increasing use in both commercial-scale and residential solar energy projects is a direct result of proven, improved solar capture efficiencies.

More on Solar Trackers...