Plant X

Plant X

Company type	Power generation facility
Industry	Energy
Founded	1952 (1952)
Headquarters	Earth , United States
Area served	Lamb County, Texas
Products	Electricity (steam-electric generation)
Owner	Southwestern Public Service Company (a division of Xcel Energy)

Plant X is a steam-electric generating facility situated in the Sandhills region south of Earth, Texas, within Lamb County. The plant is owned and managed by Southwestern Public Service Company, a division of Xcel Energy.

History

Initially, during the planning phase, the facility was referred to as "Plant X" because a site had not yet been selected; this designation was retained permanently. When Southwestern Public Service sought to establish a new plant on the Llano Estacado plateau, William L. Broadhurst from the US Geological Survey advised locating it in Lamb County’s Sand Hills area due to its plentiful freshwater resources from the Ogallala Aquifer. Consequently, Plant X was established at this location.

The plant operates primarily on natural gas with fuel oil serving as a secondary source. It consists of four generating units: Unit 1 (48 MW, commissioned in 1952), Unit 2 (102 MW, 1953), Unit 3 (103 MW, 1955), and Unit 4 (189 MW, 1964), providing a combined capacity of 442 megawatts.

Water use

Designed as a zero-discharge facility, Plant X does not release any process water directly offsite. Located in a semiarid environment with limited water availability, the plant utilizes a recycling method whereby blowdown water is transferred to the nearby Tolk Station coal-fired power plant to the west for treatment and subsequent reuse. This partnership results in an annual reduction of approximately 180 million gallons in total water consumption.

Nevertheless, Plant X demands significant groundwater withdrawal due to steam production, atmospheric steam venting, and evaporation from its extensive cooling towers, heavily relying on the Ogallala Aquifer. The combined groundwater extraction for power generation and agricultural irrigation has led to substantial depletion of aquifer levels beneath the Sand Hills region. As a result, most natural springs have dried up, and spring-fed bodies of water such as Spring Lake and Soda Lake no longer contain water.

See also

• List of power stations in Texas