Electric & Gas

CPS Energy

CPS Energy is the nation's largest municipally-owned utility providing both electric and natural gas service to the San Antonio metropolitan area. An independent board of trustees governs CPS Energy.

Mailing Address:
CPS Energy
Sustainable Growth Office – Economic Development
P.O. Box 1771
San Antonio, TX 78296-1771

Electric Power

Electric Service Area

CPS Energy is a forward-thinking organization that uses clean energy harvested from wind, solar and landfill gas to power San Antonio with
21st century energy options. CPS Energy is capitalizing on its aggressive clean energy initiatives and energy efficiency programs to meet
its goal of achieving 1,500 megawatts (MW) of renewable energy power, or 20% of total generation capacity, by 2020. To encourage the
consumption and development of renewable energy and energy efficiency, CPS Energy offers a variety of incentives and programs to both
commercial and industrial customers.

Generating Plants

At the end of fiscal year (January 31, 2010), CPS Energy utilize a diverse fuel mix including coal, nuclear, natural gas, solar and wind to generate a total capacity of 7,006 MW for the San Antonio service territory. CPS Energy registered 4,738 MW of peak demand on August 23, 2010.

Electric Transmission System

The CPS Energy Transmission System interconnects the generating plants with distribution substations located throughout the service area. In addition, the CPS Energy Transmission System is part of the interconnected transmission grid operated by the Electric Reliability Council of Texas (ERCOT). ERCOT serves as the regional security coordinator for the North American Reliability Council, the Independent System Operator and the Regional Transmission Organization for the transmission grid serving the majority of Texas.

  • Voltages: 138 kV, 345 kV
  • Size of Lines: Lines range from 4/0 to 2,000 MCM (2 bundle)
  • Description of System: Networked

Electric Distribution System

CPS Energy distributes power through strategically located distribution substations. Each substation has from one to six power transformers with capabilities based on the load density. These substations feed approximately 535 distribution circuits, serving retail customers in the CPS Energy service area. As of January 2010, CPS Energy served 707,000 electric customers.

  • Voltages: 4.16 kV, 13.2 kV, 34.5 kV
  • Size of Lines: Range up to 556 MCM

Service Continuity

A well maintained, well-engineered electric system and a temperate climate help CPS Energy provide continuous, reliable electric service. From the Emergency Management Center (EMC), highly trained technicians using the latest in computer technology monitor the flow of energy in CPS Energy's 1,566-square-mile service area 24 hours a day.

Electric Rates

The annual average electric rates for industrial users in San Antonio are competitive when compared to other utilities across the state and nation. In addition, in 2010, San Antonio residential bills ranked lowest when compared to the 20 largest U.S. cities. Using the appropriate and most advantageous rate schedule, CPS Energy economic development staff will gladly calculate an estimated electric bill based on specific consumption (kWh) and demand (KW) figures.

Economic Incentive Rider

CPS Energy has an economic incentive rider applicable to entities that bring, or add, at least 10 MW of new electric load to CPS Energy.

Natural Gas

Natural Gas Service Area
CPS Energy provides natural gas to over 331,000 residential, commercial and industrial customers in a 640-square-mile area in San Antonio, Bexar County and parts of Comal County. The system can be expanded to serve customers in other areas. For more information about natural gas services in San Antonio, click here.

Gas Transmission System

The Gas Transmission System has 88 miles of 16-inch through 30-inch transmission mains that feed an extensive intermediate pressure supply system and provide access to four major natural gas transmission lines and numerous natural gas suppliers.

Gas Distribution System

Nearly 4,400 miles of 14-inch to 30-inch cathodically protected steel and plastic mains make up the gas distribution system. CPS Energy has sufficient capacity to supply additional industrial load. As of January 2010, CPS Energy serve more than 320,000 gas customers.

Gas Service Continuity

As with the electric system, personnel from the Emergency Management Center (EMC) continuously monitor the natural gas system and remotely control all major components. Customers receive gas via a modern, reliable pipeline system that delivers the fuel even during heavy winter peak demand. Some 250 highly trained employees ensure reliability around the clock. As a natural gas distribution utility, CPS Energy adheres to the natural gas supply and priority use regulations established by the Texas Railroad Commission and the Federal Government. CPS Energy uses a pool of 60 gas providers to maintain competitive prices, guarantee adequate supply, and meet customer demands.

Gas Rates

Gas rates are below the national average and competitive when compared to other utilities across the state. This is due largely to the fact that gas supply is more accessible and can be secured more economically in this area of the country than in many other areas. Using the appropriate and most advantageous rate schedule, CPS Energy staff will gladly calculate an estimated annual bill based upon specific consumption and demand figures.

Development Plans

Electric and Natural Gas Systems
Ranked as one of the best-managed and most economical utilities in the nation, CPS Energy is positioned to handle present needs as well the vibrant future growth expected in the San Antonio area.

Sound financial management enables the utility to enjoy AA+, Aal, and AA ratings from Fitch Ratings, Moody's Investors Service, Inc., and Standard and Poor's Rating Services, respectively.

The gas system is one of the best, most reliable systems in the country, offering an ample gas supply. CPS Energy has sufficient capacity to provide economical natural gas to new industrial development and growth in the San Antonio area. The CPS Energy electric and gas systems continue to meet present and future energy requirements and will continue to provide reliable gas and electric service for CPS Energy customers. In addition, CPS Energy continues to prepare for the future.

The North American Electric Reliability Council (NERC) is urging utilities to have both primary and secondary control centers. To address this, CPS Energy has completed the construction of a new Emergency Management Center (EMC), making CPS Energy the leader in system control in Texas. System reliability is enhanced at the new EMC by utilizing one of the most advanced computer controlled, redundant on-line utility control systems available, making it possible now to control field switches past the substation.

In addition, CPS Energy has a state-of-the-art communications system, which enhances internal operations, as well as allows the utility to communicate with its customers. The system consists of a fiber optic network and wireless technology, which offers limitless possibilities in electronic information transfer. More than 500 miles of fiber optic cable make up the backbone of the communications system.

Wireless technology also plays a vital role in the CPS Energy communication system. Currently, CPS Energy owns more than 60 radio towers. The towers, in conjunction with CPS Energy's continuous automation of field devices in substations and in the electric distribution system, increase the reliability and efficiency of electric service.

CPS Energy continues the implementation of new state-of-the-art system control and data acquisition (SCADA) systems for both electric transmission and distribution systems. Implementation of a new gas SCADA began the first quarter of 2003. These systems provide CPS Energy with advanced capabilities for managing the safe and reliable delivery of energy to its customers.

Clean Energy

CPS Energy is a forward-thinking organization and uses clean energy harvested from wind, solar and landfill gas to power San Antonio with 21st Century energy options. CPS Energy is capitalizing on its aggressive clean energy initiatives and energy efficiency programs to meet their goal of achieving 1,500 megawatts (MW) of renewable energy power, or 20% of total generation capacity, by 2020.

To encourage the consumption and development of renewable energy and energy efficiency, CPS Energy offers a variety of incentives and programs to both commercial and industrial customers. For more information on CPS Energy and clean energy efforts, click here.

Commercial and Industrial Rebates
Designed to help make your business operation more energy efficient, CPS Energy offers rebates for Heating & Cooling Equipment, Reflective Roof Products, Commercial Lighting, Premium Efficiency Motors, Innovative Technologies, Solar Photovoltaic and Incentives for New Commercial Construction and Demand Response. For more information on CPS Energy and industrial rebates, click here.

Renewable Energy Options
Windtricity is the green energy program that enables your company to purchase clean, renewable power from West Texas and coastal wind farms. CPS Energy currently acquires 859 MW of wind-generated electricity, making the utility the largest municipal purchaser of wind energy in the United States.

CPS Energy is also harvesting solar power through purchase agreements in place for over 40 MW of solar power. Recently, the Blue Wing Solar farm came online generating 14 MW of solar power, and another 30 MW is scheduled to come into the CPS Energy system by 2012 from a SunEdison project under development.

For more information on CPS Energy, visit www.cpsenergy.com.