As indicated in a study Josh wrote on just a couple weeks ago, the lifespan of a solar power system is far longer than the 20 years most analysts use to calculate solar power costs. Last November, Susan featured one that was going strong at 30 years. A Facebook fan notes that solar panels at the Technical University of Berlin have been in operation for 31 years. Similarly, Kyocera, one of the oldest solar panel manufacturers in the world, recently posted on the fact that a number of its early installations continue to generate electricity reliably nearly 30 years after installation.
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From taking high-polluting nations to task for climate change to setting up a Mongolia-sized sanctuary for marine mammals, the tiny island nation of Palau, located roughly 500 miles east of the Philippines, has long been punching above its weight when it comes to environmental issues.

It’s latest venture is sending a clear message to the world—working with solar panel manufacturer Kyocera, Palau International Airport has just installed the nation’s largest solar array. Sure, its size (226.8kW) is not huge compared to the multi-hundred megawatt solar projects we see appearing around the world with increasing frequency, but it is still an important step forward.

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A solar hot water collector that makes electricity, too

The company today announced it raised $14 million in series C funding to commercialize a product that will draw electricity from solar hot water collectors. It will also make small chips able to convert heat from car exhaust pipes and industrial machines into electricity.

GMZ Energy, which was spun out of the Massachusetts Institute of Technology and Boston College in 2008, has created an improved material for converting the energy in heat into electric power. The process works in reverse so an electric current will produce heat.

Thermoelectric materials have been used for years in a few applications, such as heated seats in cars and portable coolers. Now a number of companies are trying to make them less expensive and more efficient at the heat-to-electric power conversion.

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