Firefly Fields Storage (29INR0123)
Firefly Fields Storage is a 156.5 MW other interconnection project in Colorado, Texas with a current status of operational. It is proposed to connect at Tap 138 kV 57640 Rock Island to 7258 Glidden.
156.5 MWCapacity
OperationalStatus
ColoradoMarket
OtherTechnology
Project facts
| Canonical name | Firefly Fields Storage |
|---|---|
| Queue ID | 29INR0123 |
| Status | operational |
| Source status | SS Completed, FIS Started, No IA |
| Market | Colorado |
| Technology | Other |
| Capacity | 156.5 MW |
| State | Texas |
| County | Colorado |
| Point of interconnection | Tap 138 kV 57640 Rock Island to 7258 Glidden |
| Requested (queue) date | 2025-03-24 |
| Proposed in-service date | — |
| Operational date | 2028-09-30 |
| Withdrawn date | — |
| Developer | Firefly Fields Energy Center LLC |
| Utility / transmission owner | ERCOT |
Cross-source records
This project is also observed in: Lawrence Berkeley National Laboratory — Queued Up interconnection dataset. interXdata links these source records without double-counting the project.
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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