Okay, so maybe this won’t appeal to everyone. I’m an electrical engineer, and IEEE is my professional society. The Ames Station is the first generating station to produce and transmit alternating current (AC) electrical power. We may think that sort of humdrum, but at the time it was hotly-contested technology. It’s located near where Ophir Pass meets the highway at the west end, so I simply had to visit!
Back in the late 1800s electricity was a new thing, so many varieties were invented. Thomas Edison pushed direct current (DC), a relatively low-voltage way to distribute electricity that required thick cables and worked only over limited distances. George Westinghouse, on the other hand, pushed AC, which, at high voltages, can be transmitted over long distances. Well, the war was pretty nasty. Then came along the Gold King Mine way up on the hillside that needed power. They looked at DC (Edison was an icon even then) but concluded the distance from the hydroelectric power plant (down in the canyon) and the mine (way up on the hillside) was too great, so they used AC. It worked, in fact spectacularly well. This settled the controversy over what kind of generators should be installed at Niagara Falls: AC. Westinghouse got the contract. The rest is history—we use AC everywhere. Oh, the Ames hydroelectric plant? It’s still there. And it’s still operating, producing power just as it has for nearly 120 years. I’ve provided a few photographs, including three plaques placed in front of the building.The first plaque, placed in July 1988 by the IEEE, reads: “Electrical Engineering Milestone. Ames Hydroelectric Generating Plant. Electricity produced here in the spring of 1891 was transmitted 2.6 miles over rugged and at times inaccessible terrain to provide power for operating the motor-driven mill at the Gold King Mine. This pioneering demonstration of the practical value of transmitting electrical power was a significant precedent in the U.S. for much larger plants at Niagara Falls (in 1895) and elsewhere. Electricity at Ames was generated at 3,000 volts, 133 Hertz, single-phase AC by a 100HP [horsepower] Westinghouse alternator. July 1988. Institute of Electrical and Electronics Engineers.”
The caption reads: “1891-1991. The Institute of Electrical and Electronics Engineers celebrates the centenary of the use of alternating current for industrial, commercial, and residential service. The Telluride Power Company, which began operation in 1891, was the first to provide AC power for non-lighting purposes. The original single-phase system of 133 Hertz expanded rapidly and in 1896 was replaced with a two-phase Tesla system of 60 Hertz. By 1911 the company operated eight generating stations producing more than 40,000 horsepower that supplied 600 miles of transmission line. Institute of Electrical and Electronics Engineers.” (By the way, a horsepower is around 720 watts, give or take.)