MT Queue Project 435 — Solar+Battery in Colstrip, Montana
MT Queue Project 435 — Solar+Battery in Colstrip, Montana is a 800.0 MW solar+battery interconnection project in Colstrip, Montana with a current status of active. It is proposed to connect at Colstrip 500kV Substation.
800.0 MWCapacity
ActiveStatus
MTMarket
Solar+BatteryTechnology
Project facts
| Canonical name | MT Queue Project 435 — Solar+Battery in Colstrip, Montana |
|---|---|
| Queue ID | 435 |
| Status | active |
| Source status | Active - Contract Negotiations |
| Market | MT |
| Technology | Solar+Battery |
| Capacity | 800.0 MW |
| State | Montana |
| County | Colstrip |
| Point of interconnection | Colstrip 500kV Substation |
| Requested (queue) date | 2022-11-04 |
| Proposed in-service date | 2025-12-01 |
| Operational date | — |
| Withdrawn date | — |
| Developer | — |
| Utility / transmission owner | NorthWestern Energy |
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 |
|---|---|---|---|---|
| 2026-08-03 | new_project | — | active | high |
Explore related data
Source last checked2026-08-24
Data last materially changed2026-08-24
Page data generated2026-08-27
Provenance: northwestern-oasis. Values are normalized from public source records into the interXdata canonical warehouse; see each source for original filings.
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