Transmission Projects

Transmission lines carry high voltage electricity from generation facilities to your local substation. From there, smaller distribution lines carry power to your home.

PEC owns and maintains about 304 miles of transmission line. As our Hill Country community continues to grow, our system grows, too.

Maintaining and improving our transmission equipment is a mainstay of our commitment to delivering low-cost, reliable, and safe energy solutions.

Current transmission projects:

PEC is upgrading approximately 11 miles of the existing transmission line between the Blanco substation and Mountain Top substation in Blanco and Comal County. The purpose of this project is to improve the reliability and capacity of the line.

Construction is in progress and scheduled to complete in December 2025.

Map showing the route for the transmission lines from Mountain Top to Blanco substation.

PEC is upgrading approximately 4 miles of the existing transmission line between the Cedar Valley substation and Friendship substation in Travis and Hays County. This project will help meet the area’s growing demand for electric power, improve system reliability and reduce ongoing maintenance costs.

Construction is in progress and scheduled to complete in December 2025.

Map showing the route for the transmission project from Cedar Valley to Friendship substation.

PEC will be replacing two structures and modifying an existing structure on the Hunter to Purgatory transmission line outside of the Hunter substation. The purpose of this project is to replace aging infrastructure and improve system reliability. Construction is scheduled to begin in October 2025 and be completed in January 2026. Map showing the location of the Hunter substation.

PEC will be upgrading the Nameless substation. As a part of this project, PEC will install temporary structures and install a new structure outside of the Nameless substation.

Construction of the temporary structures is scheduled to begin in August 2025 and be completed in December 2025. Construction of the final configuration is scheduled to begin in March 2026 and be completed in May 2026.

Map showing the location of the Nameless substation.

PEC is upgrading approximately 11 miles of the existing transmission line between the Blanco substation and Devils Hill substation in Blanco and Comal counties. The purpose of this project is to improve the reliability and capacity of the line.

Construction is scheduled to begin in January 2026 and be completed in September 2026.

Map showing the location of the Blanco substation.

Oncor and LCRA Bell County East - Big Hill 765 kV Transmission Project

Learn more from LCRA and Oncor.
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