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San Juan Generating Station
San Juan Generating Station, located near Farmington, N.M., is four-unit coal-fired facility that provides Tri-State with about 41 megawatts of capacity. In January 1996, Tri-State purchased an 8.2 percent share from Unit 3 at the plant, which is operated by Albuquerque, N.M.-based PNM. San Juan Generating Station is the seventh-largest coal-fired station in the West.
Plant Statistics
Plant operator |
PNM |
Plant construction |
1973 |
Total capacity |
1,800 megawatts (gross)
Tri-State share – 41 megawatts
(8.2 percent of Unit 3) |
Coal source |
San Juan Coal Company – BHP Billiton |
Plant site size |
521 acres |
Stack height |
400 feet (each) |
Water source |
San Juan River |
Environmental
controls |
A state-of-the-art limestone forced-oxidation system removes 80 percent of all sulfur dioxide produced at the plant; electrostatic precipitators remove 99 percent of fly ash; continuous 24-hour emissions monitoring system assures that flue gas emissions comply with federal and state laws |
Coal Supply
San Juan Generating Station receives its coal supply primarily from San Juan (underground) Mine, about two miles from the plant by truck.
San Juan Mine Statistics
Ownership |
San Juan Coal Company - BHP Billiton |
Mine site size |
17 square miles |
Annual yield |
7,800,000 million tons |
Daily production |
17,810 to 19,810 tons per day (average) |
Estimated
life span |
Through at least 2017
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