The Texas Legislature mandated the map’s creation in 2021, as part of Senate Bill 3, in response to Winter Storm Uri that left millions without power.
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Texans can now view portions of the state’s Electricity Supply Chain map online, including details of more than 12,000 electric and natural gas facilities, 21,000 miles of gas transmission pipelines and 60,000 miles of electric transmission lines.
The map details, which were unveiled in February by the Texas Public Utility Commission, can be found on the agency’s website, here. Mandated by the Texas Legislature in 2021, the map is used by emergency responders to prepare for and respond to crisis events that could impact grid reliability.
Under state law, regulators cannot publicly release all layers of the map because of security concerns. As such, the PUC’s new webpage features only those publicly available layers hosted and maintained by partnering state agencies.
The Texas Legislature mandated the map’s creation in 2021, as part of Senate Bill 3, in response to Winter Storm Uri that left millions without power. The PUC and the Railroad Commission of Texas released an initial version of the map in 2022, and it was most recently updated in December 2023 to include approximately 13,000 water and wastewater treatment plants and roads that provide direct access to all critical facilities.
The Electricity Supply Chain Map webpage will be updated periodically with additional facilities and infrastructure details.