Battery storage interconnection queue in Montana

Before a new power plant or battery can connect to the US grid, it joins a queue for studies and an interconnection agreement. Most requests never get built. This shows every request: active, built and withdrawn.

Requests shown51,059 MW

Active in queue1,059 MW5 requests

Agreement signed0.0 MW0 requests

Withdrawn242,568 MW never built

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Project, developer, substation or county State Grid region Technology Status Year joined Sort

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Source: Lawrence Berkeley National Laboratory, Queued Up interconnection queue data (data through end of 2025). Map points are county centres, not exact sites.

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In studyAgreement signedUnder constructionBuiltSuspendedWithdrawn

Requests

5 requests

Project	Capacity	Status	Location	Region	Queued	Online
Battery storage project 310, Meagher County Battery storage	450 MW	Paused / redesign	Meagher, MT	West	Dec 2016	target 2023
Battery storage project C002, Meagher County Battery storage	450 MW	Paused / redesign	Meagher, MT	West	Dec 2016	target 2020
Battery storage project 455, Yellowstone County Battery storage	100 MW	In study	Yellowstone, MT	West	Jan 2024	target 2028
Battery storage project 376, Yellowstone County Battery storage	58.8 MW	Paused / redesign	Yellowstone, MT	West	May 2020	target 2023
Battery storage project G1085, Flathead County Battery storage	0.3 MW	In study	Flathead, MT	West	Aug 2025	target 2025

Capacity in the queue by state

Click a state to drill down.

By grid region

ISO/RTO markets and the non-ISO West and Southeast.

West (non-ISO utilities)5 · 1,059 MW

Requests by year joined

Capacity of requests in this view, by the year they entered the queue. Click a year.

20162025

Source: Rand, J. et al., Queued Up, Lawrence Berkeley National Laboratory, data through end of 2025. Compiled from the queues of the 7 ISO/RTOs and dozens of non-ISO utilities. A request is a proposal to connect, not a commitment to build: historically most are withdrawn. Capacity is the requested interconnection size; hybrids include the storage component. Transmission lines · Planned power plants (EIA)