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Conservation encouraged over next two days, especially during peak hours from 2 – 7 p.m. ERCOT currently expects sufficient generation to meet today’s demand

July 10, 2022 (SAN ANTONIO) – With an Excessive Heat Warning in effect for San Antonio today and tomorrow, CPS Energy is encouraging customers to voluntarily reduce their electricity use, especially during the peak hours of 2 – 7 p.m. At this time, the Electric Reliability Council of Texas (ERCOT) says there is sufficient generation to meet state grid demand today. CPS Energy has enough power to meet local energy demand as well.

Under CPS Energy’s color-coded conservation awareness notification system, today and tomorrow are currently Yellow Days for Greater San Antonio and customers are asked to conserve energy using the following tips:

  • Set thermostats 2 to 3 degrees higher from 2 – 7 p.m.; set programmable thermostats to higher temperatures when no one is home. The optimum energy-saving temperature is 78 degrees.
  • Avoid using large appliances (i.e., ovens, washing machines, etc.), especially during peak demand hours.
  • Use fans to feel 4 to 6 degrees cooler. Remember: fans cool people by moving air across the skin. They don’t cool rooms and should be turned off in empty rooms.
  • Turn off and unplug non-essential lights and appliances.
  • Close shades and blinds on windows exposed to direct sunlight.
  • Charge electric vehicles after 10 p.m.
  • Set pool pumps to run early morning or overnight; shutoff from 2 – 7 p.m.

To conserve energy at work, business customers are encouraged to:

  • Minimize the use of lighting and electric equipment as much as possible.
  • Consider shutting down or reducing non-essential production processes.

Additional conservation tips can be found at

CPS Energy is in close communications with ERCOT and will provide customer and community updates as needed. If conditions change, CPS Energy will partner with the City of San Antonio, Bexar County, suburban cities and other stakeholders to help communicate any potential urgent messages. CPS Energy customers are strongly encouraged to update their contact information with the utility to stay informed of emergencies. Updates can be made online in Manage My Account or by calling CPS Energy during regular business hours at (210) 353-2222.

Customers are reminded that outages can happen that are unrelated to any grid conditions. Some common causes include vehicles hitting poles and animals or balloons that may get into power lines. Community cooling centers are open for customers experiencing an outage or who may need relief from the heat.

To track statewide electricity demand:

  • View daily peak demand forecast, current load, and available generation at
  • Follow ERCOT on Twitter (@ERCOT_ISO) and Facebook (Electric Reliability Council of Texas).
  • Sign up for the ERCOT mobile app (available for download at the Apple App Store and Google Play).
  • Subscribe to the Emergency Alerts list on

Follow CPS Energy on social media for local updates.


About CPS Energy

Established in 1860, CPS Energy is the nation’s largest public power, natural gas, and electric company, providing safe, reliable, and competitively-priced service to more than 907,526 electric and 373,998 natural gas customers in San Antonio and portions of seven adjoining counties. Our customers’ combined energy bills rank among the lowest of the nation’s 20 largest cities – while generating $8 billion in revenue for the City of San Antonio for more than seven decades. As a trusted and strong community partner, we continuously focus on job creation, economic development, and educational investment. We are powered by our skilled workforce, whose commitment to the community is demonstrated through our employees’ volunteerism in giving back to our city and programs aimed at bringing value to our customers. CPS Energy is among the top public power wind energy buyers in the nation and number one in Texas for solar generation.

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