Scheduled Maintenance:  Starts Saturday, May 15, 2021 at 8:00 PM to Sunday, May 16, 2021 at 4:00 AM, the following systems will be unavailable: Customer Alerts, Outage Reporting via IVR and Online, the ability to accept payments via Western Union or EZPay and all secure web portals.

We continue to fight to protect customers from excessive fuel and purchased power costs from the February 2021 Winter Storm Uri. Stay up to date by following us on Facebook and Twitter.  More updates: Newsroom and Storm Updates.

We stand ready to help any customer in need. Our People First philosophy led us to suspend disconnects while our community bands together during this challenging time. If you are experiencing financial hardship, we urge you to contact us for help. Call us at 210-353-2222 or online at

We require the use of a face-covering and we will screen customers for COVID-19 symptoms before they enter any CPS Energy facility. Our modified customer service center hours are 10:30 am to 5:00 pm. Monday-Friday. If you have tested positive, or a family member has tested positive for COVID-19 in the last 14 days, please use our online tools or call 210-353-2222 for assistance.  Please do not visit our customer service center if you have COVID-19 symptoms.

Energy Delivery


Delivering reliable power to our customers

We use a diverse array of fuels to generate reliable electrical service for your home or business. To deliver it, we use a sophisticated distribution system. Here’s how it works:

  1. Electricity travels through a transformer that "steps up" or increases the voltage, which allows the power to travel more efficiently over a long distance through large transmission lines.
  2. Transmission lines carry this ramped-up electricity to distribution substations. Banks of transformers step down the electricity's voltage, so it can travel through smaller distribution lines to residential and commercial districts throughout the service area.
  3. The power then travels by overhead or underground power lines to transformers on telephone poles or underground. These transformers reduce the voltage again so it can be safely delivered into your home and business.
  4. Electricity travels into buildings through wires called service drops. The service drops connect to a meter box, which measures the amount of electricity being used by a customer. The drops also connect to all of the wires that run inside a home or building’s walls to outlets and switches.
  5. When an electrical device is plugged in, electricity flows from the electrical wires in the wall through a plug's metal prongs, which then carries power through the appliance cord to the motor of the appliance. After powering the device, it then flows back through the appliance cord to the outlet, out to the wires and into the grid again.

Distributing energy is only part of the process. At CPS Energy, we constantly work to ensure the quality and reliability of our energy sources too. This means we:

  • Continually measure electrical power quality.
  • Maintain an active Power Quality Program, so customers can report any issues they’re having.
  • Developed and are implementing a Strategic Energy Plan to ensure our resources for years to come.