Description
The Antelope Valley Station is a lignite-fired electric generating station located seven miles northwest of Beulah, ND.
It has two units, each rated at 450,000 KW. The first unit began commercial operation in July 1984, and the second unit began in July 1986. They were built at a cost of $1.9 billion.
Lignite, the fuel for AVS, is provided from the Freedom Mine, adjacent to the plant site. A major part of the fuel supply also comes from the neighboring Great Plains Synfuels Plant in the form of lignite fines, coal particles too small for use in the gasification process. The water source for AVS is Lake Sakakawea, a large reservoir on the Missouri River.
Since it began operation, the Antelope Valley Station has consistently ranked among the 10 lowest-cost producers of electricity when compared to more than 400 other coal-fired power plants in the United States.
AVS was designed as an environmentally sound, coal-fired generating station. As a "zero-discharge" facility, none of the water used in the plant is returned to its source. The only way water leaves the plant site is by evaporation.
In addition, about $270 million has been invested in environmental equipment and controls for protecting land, air and water. Removal efficiencies for sulfur dioxide and particulates from stack gases meet or surpass North Dakota and federal air quality standards.