Seaway BESS (26INR0773)
Seaway BESS is a 9.9 MW other interconnection project in Waller, Texas with a current status of active. It is proposed to connect at TSP Substation Name - Seaway TSP Substation Code - Seaway Load Name/Load Transformer Name - LOAD_T-4 Bus # / PTI Bus Number: 57670 Voltage (Transmission level Kv) - 138kV Node (associated w/ load/load XFMR in NMMS) - 0009.
9.9 MWCapacity
ActiveStatus
WallerMarket
OtherTechnology
Project facts
| Canonical name | Seaway BESS |
|---|---|
| Queue ID | 26INR0773 |
| Status | active |
| Source status | — |
| Market | Waller |
| Technology | Other |
| Capacity | 9.9 MW |
| State | Texas |
| County | Waller |
| Point of interconnection | TSP Substation Name - Seaway TSP Substation Code - Seaway Load Name/Load Transformer Name - LOAD_T-4 Bus # / PTI Bus Number: 57670 Voltage (Transmission level Kv) - 138kV Node (associated w/ load/load XFMR in NMMS) - 0009 |
| Requested (queue) date | — |
| Proposed in-service date | 2027-02-22 |
| Operational date | — |
| Withdrawn date | — |
| Developer | Mount Whitney Energy Storage LLC |
| Utility / transmission owner | ERCOT |
What changed
| Observed | Field | Old value | New value | Materiality |
|---|---|---|---|---|
| 2026-09-30 | new_project | — | active | high |
Explore related data
Source last checked2026-09-30
Data last materially changed2026-09-30
Page data generated2026-10-11
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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