For several decades, coal has been an important source of fuel for CPS Energy. The company currently has three power plant units that turn low-sulfur coal into pristine electricity for San Antonio.

Today, coal satisfies more than 41 percent of Greater San Antonio’s electrical energy use. It is one of the most abundant fuel sources in the country and often is available at a lower, less volatile market price than many other fuel sources. At the J.K. Spruce Power Plant located on Calaveras Lake in south Bexar County, coal is used as a fuel source to produce 585 megawatts of electricity.

CPS Energy is in the process of building Unit 2 of the Spruce plant. The new unit is scheduled to be on line by 2010 and will produce another 750 megawatts of electrical power for Greater San Antonio.