Avant Prairie BESS
ERCOT queue ID 27INR0316
| Queue ID | 27INR0316 |
|---|---|
| Project name | Avant Prairie BESS |
| Status (as published) | SS Completed, FIS Completed, No IA |
| Substation | Tap BIGBRNE (#) - JEWETT (#) CKT 1 |
| Point of interconnection | Tap 345kV BIGBRNE (#3380) - JEWETT (#3390) CKT 1 |
| County | Freestone |
| State | TX |
| Voltage | 345 kV |
| Capacity | 201.7 MW |
| Resource (as published) | OTH/BA |
| Resource category | Battery (normalised for filtering) |
| Target commercial operation | 2029-04-16 |
| Source dataset | large |
Tracked changes
1 change observed between weekly snapshots of the ERCOT queue since ERCOT tracking began on August 27, 2026. MW is nameplate as filed; for a capacity revision it is the change, not the new total.
| Detected | Change | MW | Status was → now |
|---|---|---|---|
| 2026-10-05 | Status change | n/a | SS Completed, FIS Started, No IA → SS Completed, FIS Completed, No IA |
Additional filed fields
| Interconnecting Entity | Avant Prairie ESS LLC |
|---|---|
| Cdr Zone | NORTH |
| Fuel Code | OTH |
| Technology Code | BA |
| Screening Study Complete | 45628 |
| Fis Approved | 46266 |
Fields shown are those promoted into this dataset. The original ISO filing may contain further columns (study reports, agreement dates, milestone flags) that are retained in the pipeline but not all surfaced here. Always confirm against the ISO's published queue before relying on any value.