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Technology Stocks : American Superconductor (AMSC)

AMSC 37.87

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From: David C. Burns	6/13/2011 2:03:03 PM
	of 973

This Week's Solar Flare Illuminates the Grid's Vulnerability A massive burst of solar wind that erupted from the sun Tuesday is expected to deliver only a "glancing blow" to the Earth's vulnerable magnetic field, NASA officials said yesterday. But it will preview what some experts call a potentially existential threat to the power grids of the United States and other nations, and the populations that depend on them. The next peak cycle of sunspot activity is predicted for 2012-2014, bringing with it a greater risk of large geomagnetic storms that can generate powerful rogue currents in transmission lines, potentially damaging or destroying the large transformers that manage power flow over high-voltage networks. nytimes.com

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