Monday, March 16, 2009

The Last Will Be First

Edison lost out to Westinghouse in the AC/DC wars. Now it looks like DC may be coming back. HVDC is more efficient over long distances. In Edison's time there weren't transformer that could bring the high DC voltages down to what would be acceptable for home use. But HVDC is a perfect way to spread power over long distances. Just what you need for a constant supply of solar or wind-generated power.

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