October 16 -- As the 19th century entered its final decade, the War of Currents was nearing its peak. On one side of this war was Thomas Edison, who had invested heavily in direct-current (DC) technology. Tesla and Westinghouse backed alternating-current (AC), which they believed (correctly) to be more efficient.
In the spring of 1891, a seemingly small event in Telluride, Colorado, decisively turned the tide in favor of AC. The Ames hydroelectric-power plant, financed by mining entrepreneur L. L. Nunn, and built around equipment supplied by Westinghouse, began transmitting AC power to Nunn’s gold-mining operations 2.6 miles away. >>View Article