United States › Grid › Interconnection queues
OCTARY USA · INTERCONNECTION QUEUESBattery storage interconnection queue in the USA — page 4
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 This shows every request: active, built and withdrawn.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 shown2,226417.8 GW
Active in queue417.8 GW2,226 requests
Agreement signed76.1 GW459 requests
Withdrawn3,516554.5 GW never built
Map
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In studyAgreement signedUnder constructionBuiltSuspendedWithdrawn
Requests
2,226 requests · page 4 of 45
| Project | Capacity | Status |
|---|---|---|
| BRP Mekong BESS Battery storage · BRP Mekong BESS LLC |
410 MW | In study |
| Wilson BESS Battery storage · Dunamis BESS |
410 MW | In study |
| McCamey's Castle Battery Battery storage · Castle Storage, LLC |
410 MW | Agreement signed |
| Shoals Energy Storage Battery storage |
409 MW | Agreement signed |
| Battery storage project Q2413, Pinal County Battery storage |
409 MW | In study |
| Beacon Storage Battery storage · AES Distributed Energy, Inc |
409 MW | In study |
| Sigma Storage Battery storage · AES Distributed Energy, Inc |
408 MW | In study |
| Hidalgo Energy Storage Battery storage |
408 MW | Agreement signed |
| Lund Storage Center 1 Battery storage · Lund Storage Center 1, LLC |
408 MW | In study |
| 18-Bravo BESS Battery storage · Scout Energy Management, LLC |
407 MW | In study |
| Claire BESS Battery storage · BRP Blue Topaz 3, LLC |
406 MW | In study |
| Simon Battery storage |
406 MW | In study |
| Gabriel Storage Battery storage |
406 MW | Agreement signed |
| Trolley Battery storage |
406 MW | Agreement signed |
| Coral Reef Battery storage |
406 MW | In study |
| Fleetwood Battery storage |
406 MW | In study |
| Marici Battery storage |
406 MW | Agreement signed |
| Tea Leaf Energy Storage Battery storage |
404 MW | In study |
| Dirac Battery storage |
403 MW | In study |
| Bernice Energy Storage Battery storage · Bernice Energy Storage LLC |
403 MW | In study |
| Merope BESS Battery storage · BRP Merope BESS LLC |
402 MW | In study |
| Iron Belt Energy Storage Battery storage · Iron Belt Energy Storage Project, LLC |
402 MW | Agreement signed |
| Corruscant BESS Battery storage · AEU Battery Project III LLC |
402 MW | In study |
| Battery storage project Company 212, Clark County Battery storage |
400 MW | Paused / redesign |
| Battery storage project J2496, White County Battery storage |
400 MW | In study |
| Battery storage project 21-104, Washington County Battery storage |
400 MW | Agreement signed |
| Battery storage project 620, Bay County Battery storage · FPL |
400 MW | In study |
| Battery storage project J4076, Jefferson Davis Parish County Battery storage |
400 MW | In study |
| Battery storage project IC-1102, Montgomery County Battery storage |
400 MW | Paused / redesign |
| Battery storage project Q116, Clark County Battery storage |
400 MW | In study |
| Battery storage project 25-00384, Clark County Battery storage |
400 MW | In study |
| Battery storage project IA-PNM-2025-09, Valencia County Battery storage |
400 MW | In study |
| Battery storage project J2304, Columbia County Battery storage |
400 MW | In study |
| Battery storage project 23-221, Washington County Battery storage |
400 MW | In study |
| Brushy Battery storage |
400 MW | In study |
| Battery storage project J4093, Mason County Battery storage |
400 MW | In study |
| Battery storage project Q115, Clark County Battery storage |
400 MW | In study |
| Battery storage project GEN-2025-SR1, Henry County Battery storage |
400 MW | In study |
| Battery storage project LGE-CS2025-001, Jefferson County Battery storage |
400 MW | In study |
| Battery storage project Company 226, Clark County Battery storage |
400 MW | Paused / redesign |
| Battery storage project Company 206, Clark County Battery storage |
400 MW | Paused / redesign |
| Battery storage project J3992, Eaton County Battery storage |
400 MW | In study |
| Battery storage project 25-00386, Storey County Battery storage |
400 MW | In study |
| Battery storage project G0609, Multnomah County Battery storage |
400 MW | In study |
| Battery storage project G0862, Sherman County Battery storage |
400 MW | In study |
| Shallow Seam BESS Battery storage · Shallow Seam Energy Storage, LLC |
400 MW | In study |
| Battery storage project T2-083, Emery County Battery storage |
400 MW | In study |
| Battery storage project AG2-545, Mchenry County Battery storage · Monarch Grid, LLC |
400 MW | In study |
| Va400B Battery storage |
400 MW | In study |
| Battery storage project GI-2023-168, Imperial County Battery storage |
387 MW | In study |
Page 4 of 45
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Capacity in the queue by state
Click a state to drill down.
AK–ME–VT39MWNH–WA8.9GWID3GWMT1.1GWND2.1GWMN7.7GWIL17GWWI2.6GWMI15GWNY11GWRI205MWMA5.9GWOR23GWNV14GWWY929MWSD700MWIA3.3GWIN10GWOH1.8GWPA1.9GWNJ3.7GWCT347MWCA54GWUT5.8GWCO3.4GWNE2.5GWMO5.8GWKY1.7GWWV30MWVA9.9GWMD3.1GWDE350MWAZ12GWNM6.2GWKS5.7GWAR2GWTN747MWNC4GWSC2.2GWDC–OK11GWLA3GWMS1.9GWAL1.5GWGA7.3GWHI–TX138GWFL1.8GW
By grid region
ISO/RTO markets and the non-ISO West and Southeast.
- ERCOT (Texas)724 · 133.4 GW
- West (non-ISO utilities)352 · 82.2 GW
- MISO (Midcontinent)305 · 55.0 GW
- CAISO (California)175 · 48.7 GW
- SPP (Southwest Power Pool)198 · 31.4 GW
- PJM (Mid-Atlantic, Midwest)248 · 29.6 GW
- Southeast (non-ISO utilities)109 · 19.4 GW
- NYISO (New York)84 · 11.1 GW
- ISO-NE (New England)31 · 6,907 MW
Requests by year joined
Capacity of requests in this view, by the year they entered the queue. Click a year.
20112025
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)