SAT15 Substation and Transmission Line Project


The SAT 15 Substation and Transmission Line Project involves the proposed construction of a new electric substation and transmission line in the northwest portion of Bexar County near the intersection of State Hwy 151 and Wiseman Blvd. This substation is needed to provide electric service to a large business in the area.

CPS Energy has evaluated multiple geographically diverse transmission line options and has filed an application to amend its existing Certificate of Convenience and Necessity with the Public Utility Commission of Texas (PUC).

Throughout the course of the PUC process, CPS Energy will be posting updates to major activities and information regarding this project on this webpage.

Update 11/03/2023:

CPS Energy has filed the CCN Application for the SAT 15 Transmission Line Project with the Public Utility Commission of Texas under docket number 55728. The filed application can be found on the PUC Interchange website here. Digital copies of the complete application and attachments are available on this website, and the PUC Interchange. A physical copy of the documents is available for public viewing at:

CPS Energy, 500 McCullough, San Antonio, TX 78215


Great Northwest Library – 9050 Wellwood St., San Antonio, TX 78250

Notice packages (Attachment 7) for this project have been mailed out via first class mail to all directly affected Landowners. If you wish to participate in this proceeding by becoming an intervenor, the deadline for intervention in the proceeding is December 4, 2023, and the PUC should receive an electronic filing or letter from you requesting intervention by that date. More information about the PUC’s filing process can be obtained at the PUC’s website here. Instructions for using the PUC Filer are available here. For assistance with an electronic filing, please contact the PUC’s Help Desk at (512) 936-7100 or [email protected].

You may call, write, or email:

CPS Energy
Daniel Otto, S&T Regulatory Support Manager
SAT15 Substation and Transmission Line Project
Mail Code RT0801
500 McCullough Ave.
San Antonio, Texas 78215
(210) 353-2515

[email protected]