Wednesday, March 25, 2009

Smart Grid Considerations

From New Scientist:

There are two problems to face. The first is the modern electricity grid, which is designed to operate at ever higher voltages over ever larger areas. Though this provides a more efficient way to run the electricity networks, minimizing power losses and wastage through overproduction, it has made them much more vulnerable to space weather. The high-power grids act as particularly efficient antennas, channeling enormous direct currents into the power transformers.

The second problem is the grid’s interdependence with the systems that support our lives: water and sewage treatment, supermarket delivery infrastructures, power station controls, financial markets and many others all rely on electricity. Put the two together, and it is clear that a repeat of the Carrington event could produce a catastrophe the likes of which the world has never seen. . . .”If a Carrington event happened now, it would be like a hurricane Katrina, but 10 times worse,” says Paul Kintner, a plasma physicist at Cornell University in Ithaca, New York.

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