System Maintenance: Please note that from Wednesday, August 20, 2025, 8:00 PM to Thursday, August 21, 2025, 2:00 AM, we will be experiencing planned customer information system maintenance and will only be able to process gas and electric emergency-related calls by calling 210-353-HELP (4357) or 1-800-870-1006. Online outage reporting and outage map updates will be unavailable.
Coal
An abundant, affordable fuel source to meet our energy needs
Coal has been an important source of fuel for CPS Energy for decades. Our utility currently has two coal units that turn low-sulfur coal into electrical power for our customers.
Coal is 18.3% of our generating capacity.
At the J.K. Spruce 1 and 2, located on Calaveras Lake in south Bexar County, coal is used to produce more than 1,300 megawatts of affordable and reliable electrical power for Greater San Antonio.
In 2011, CPS Energy made a commitment to close our first and oldest coal plant, Deely, at the end of 2018. Before the clock struck midnight to ring in 2019, the plant officially shut down
