Big Watt Mustang Power (27INR0606)
Big Watt Mustang Power is a 449.0 MW gas interconnection project in Williamson, Texas with a current status of operational. It is proposed to connect at Tapping the 138 kV line from Taylor (Bus#3658) to Thorndale North (Bus#3659).
449.0 MWCapacity
OperationalStatus
WilliamsonMarket
GasTechnology
Project facts
| Canonical name | Big Watt Mustang Power |
|---|---|
| Queue ID | 27INR0606 |
| Status | operational |
| Source status | SS Completed, FIS Started, No IA |
| Market | Williamson |
| Technology | Gas |
| Capacity | 449.0 MW |
| State | Texas |
| County | Williamson |
| Point of interconnection | Tapping the 138 kV line from Taylor (Bus#3658) to Thorndale North (Bus#3659) |
| Requested (queue) date | 2026-03-16 |
| Proposed in-service date | — |
| Operational date | 2027-09-01 |
| Withdrawn date | — |
| Developer | Big Watt Power Mustang LLC |
| Utility / transmission owner | ERCOT |
What changed
| Observed | Field | Old value | New value | Materiality |
|---|---|---|---|---|
| 2026-07-31 | new_project | — | operational | high |
Explore related data
Source last checked2026-08-01
Data last materially changed2026-08-01
Page data generated2026-08-27
Provenance: ERCOT — Generation Interconnection Status (GIS) report. Values are normalized from public source records into the interXdata canonical warehouse; see each source for original filings.
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