- Austin Energy
- Brownsville Public Utilities
- Bryan Texas Utilities
- City of College Station
- CPS Energy
- Denton Municipal Electric
- Floresville Electric Light & Power System
- Garland Power & Light
- Georgetown Utility Systems
- GEUS
- Kerrville Public Utility Board
- New Braunfels Utilities
- Texas Municipal Power Agency
- Weatherford Municipal Utility System
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