KentuckyFC writes: One of the more ambitious projects at the South Pole is the Askaryan Radio Array, a set of radio antennas under the ice that will listen for the tell tale signals of high energy neutrinos passing by. This array will eventually be over a thousand times bigger than the current largest neutrino detector: Icecube, which monitors a cubic kilometre of ice next door to the planned new observatory. But there's a problem. How do you supply 24/7 power to dozens of detectors spread over such a vast area in the middle of the Antarctic? The answer is renewable energy power stations that exploit the sun during the summer and the wind all year round. The first of these stations is now up and running at the South Pole and producing power. It is also helping to uncover and iron out the various problems that these stations are likely to encounter. For example; where to put the batteries needed to supply continuous power when all else fails. The team's current approach is to bury the battery to protect it from temperature extremes. That works well but makes maintenance so difficult that scaling this approach to dozens of power stations doesn't seem feasible. That's a problem for the future but for the moment, green power has finally come to the white continent.
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