Mohave Power Station

Mohave Power Station (known also as Mohave Generating Station, or MOGS) was a 1,580 megawatt coal fired power plant located in Laughlin, Nevada. Southern California Edison is the majority owner of the plant and was its operator. The plant is currently shut down and in the process of being dismantled.

The plant was composed of two units of capable of generating 790 MW electrical each. Combustion Engineering supplied the boilers and GE supplied the turbines and generators. Bechtel performed engineering, procurement and construction.

The Mohave Generating Station was built on a 2,500-acre (1,000 ha) site in the Sonora Desert adjacent to the Colorado River in Laughlin, Clark County. It had supercritical boilers and cross-compound steam turbines. The plant was owned by a utility consortium of operator Southern California Edison Co (56%), LADWP (10%), Nevada Power (14%), and Salt River Project (20%).

Mohave was the only power plant in the United States that used coal delivered by coal-slurry pipeline. The 18 inches (460 mm) diameter Black Mesa Pipeline ran 275 miles (443 km) to the plant from the Peabody Energy Black Mesa Mine in Kayenta, AZ, and could deliver 660 short tons (600 t) per hour. The land where the mine is located is owned by the Navajo and Hopi tribes. Four 8-million-gallon storage tanks each held the equivalent of 20,000 short tons (18,000 t) of dry coal. The slurry transport water was recycled for cooling tower water makeup; this and all other waste water was reused, making Mohave a zero-discharge facility. A natural-gas line run to the facility from a gas main near Topock supplied the required heat to start the plant, although the line was too small to run the plant exclusively on gas. The power was transmitted via two 500kV lines to substations in southern Nevada and southern California.