Solstice - Sand Lake Transmission Line Project

    West Texas Energy Connection

    AEP Texas is proud to provide electric service to its customers across its nearly 100,000 square mile service territory. It's the commitment that the company has to its customers that drives AEP Texas to join efforts with LCRA Transmission Services Corporation and Oncor and invest more than $150 million to bolster the electric transmission grid in West Texas.

    AEP Texas and Oncor plan to address the need for a more reliable power grid for future growth and economic development in Pecos, Reeves and Ward Counties. Following recent electrical studies, the Electric Reliability Council of Texas designated the project as critical. The new 345-kilovolt (kV) transmission line will provide West Texans and commercial energy developers with more reliable electric service. The Public Utility Commission of Texas (PUCT) approved the project and a final line route on June 26, 2019. See project updates for more information about the Final Order and the approved route.

    The components of the proposed Sand Lake-Solstice Transmission Line Project include:

    • Expanding the existing Solstice Station to accommodate 345-kV transmission equipment
    • Building approximately 40 miles of double-circuit 345-kV transmission line
    • Approximately 20 miles to be built by AEP Texas
    • Approximately 20 miles to be built by Oncor

    AEP Texas teamed up with Oncor to build the new electric transmission infrastructure as part of this initiative. For more information about their roles in the project and the companies, please visit their project websites:

    Oncor Solstice - Sand Lake Transmission

    Project Updates

    The company completed line construction and placed the line in service in December 2020.

    On June 26, 2019, the PUCT issued a Final Order approving the new Solstice - Sand Lake transmission line and determined a final route for the power line. This decision comes approximately 7 months after AEP Texas and Oncor filed a Certificate of Convenience and Necessity (CCN) application with the PUCT.

    AEP Texas hosted a public open house on August 15, 2018 to introduce proposed route links and answer questions related to the project. Visitors offered feedback, asked questions of project team members and learned more about the potential route links for the proposed transmission line.

    Percheron serves as AEP Texas' right-of-way representative on this project. Right-of-way agents are in the field working with affected landowners along the AEP Texas portion of the project. The company plans for these communications to continue through the fall.

    Final Order 48785 (PDF)
    Final Order Route 320 Map (PDF)

    Fact Sheet



    Structure Type: Lattice
    Structure Height: Approximately 130 – 150 feet
    Distance between Structures: Approximately 1150 feet
    Right-of-Way Width: Approximately 150 – 160 feet

    *Exact structure, height and right-of-way may vary

    * The accompanying map depicts the project area. It should be noted that the map contained on this site is for information purposes only. AEP reserves the right to alter, change, or amend the map at any time without notice and AEP provides no warranty about the accuracy of content. Keep this in mind when reviewing this map. However, AEP will make all attempts to keep this map as accurate as possible. If you have any questions about the accuracy of the current map please Contact Us.