System Maintenance: On Sunday, March 15, 2026, from 1:00 AM to 5:00 AM, our EZ Pay with credit card payment processing may be unavailable. However, you can still make a payment by logging in to your "Manage My Account" account. You may report an outage online or by calling (210) 353-4357. Visibility to bills in Manage My Account may also not be available during this maintenance.
Nuclear Energy
Environmentally friendly and dependable power from STP
CPS Energy has used nuclear energy as a part of its diverse energy portfolio for more than three decades. Today, nuclear energy meets a large portion of San Antonio’s annual electrical requirements.
Nuclear power is obtained for our customers via the South Texas Project (STP) located in Bay City, Texas.
Because nuclear energy produces no greenhouse gas emissions it’s considered a clean-air energy.
For updates on our nuclear energy generation, refer to our cpsenergy.com/pathforward webpage.
