United States › Grid › Interconnection queues
OCTARY USA · INTERCONNECTION QUEUESBattery storage interconnection queue in the USA — page 43
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 This shows every request: active, built and withdrawn.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 43 of 45
| Project | Capacity | Status |
|---|---|---|
| Battery storage project AG2-380, Queen Anne's County Battery storage · Concho Solar I, LLC |
20.0 MW | In study |
| Missouri Avenue Battery Storage Project Battery storage · Calpine Mid-Atlantic Development, LLC |
20.0 MW | Agreement signed |
| Battery storage project AH2-049, Somerset County Battery storage |
20.0 MW | In study |
| Battery storage project AH2-048, Northampton County Battery storage |
20.0 MW | In study |
| Battery storage project J1257, Tangipahoa Parish County Battery storage |
20.0 MW | Under construction |
| Battery storage project J1329, Washtenaw County Battery storage |
20.0 MW | Under construction |
| Reid Energy Center Battery storage · Reid Energy Center, LLC |
20.0 MW | In study |
| Calumet BESS Battery storage |
20.0 MW | Agreement signed |
| Evergreen Energy Center Battery storage · Evergreen Energy Center, LLC |
20.0 MW | In study |
| Battery storage project AI2-010, Hanover County Battery storage |
20.0 MW | In study |
| Kce NY 10 Battery storage · KCE NY 10, LLC |
20.0 MW | In study |
| Battery storage project G0830, Thurston County Battery storage |
20.0 MW | In study |
| Battery storage project AH2-050, Accomack County Battery storage |
20.0 MW | In study |
| Sparkl BESS Battery storage |
20.0 MW | Paused / redesign |
| Battery storage project G0942, Thurston County Battery storage |
20.0 MW | In study |
| Battery storage project GEN-2024-SR12, Lamoure County Battery storage |
20.0 MW | In study |
| Battery storage project C2-209, Uintah County Battery storage · Revolve Vernal BESS, LLC |
20.0 MW | Paused / redesign |
| Battery storage project 120, Polk County Battery storage |
20.0 MW | In study |
| Fayette Energy Facility Battery storage |
20.0 MW | Agreement signed |
| Ontelaunee Power Generating Plant Battery storage |
20.0 MW | Agreement signed |
| Battery storage project G1058, Clark County Battery storage |
20.0 MW | In study |
| Railroad Energy Center Battery storage · Railroad Energy Center, LLC |
20.0 MW | In study |
| Magruder BESS Battery storage · Mitchell Energy Facility, LLC |
20.0 MW | In study |
| Middle Battery Storage Battery storage |
20.0 MW | Agreement signed |
| Battery storage project G0829, Douglas County Battery storage |
20.0 MW | In study |
| Battery storage project J1045, Murray County Battery storage |
20.0 MW | Under construction |
| Sugar Maple Energy Storage Battery storage · Sugar Maple Solar |
20.0 MW | In study |
| Mansfield #3 Battery storage |
20.0 MW | Agreement signed |
| Bethlehem Energy Center Battery storage · Bethlehem Energy Center, LLC |
20.0 MW | In study |
| Battery storage project GEN-2016-160, Ellis County Battery storage |
20.0 MW | Agreement signed |
| Warren Glen Storage Battery storage |
20.0 MW | Agreement signed |
| Houses Corner Storage Battery storage |
20.0 MW | Agreement signed |
| Clies 20 MW Battery storage · Caithness LI Energy Storage, LLC |
20.0 MW | In study |
| Battery storage project GEN-2017-117, Canadian County Battery storage |
19.8 MW | Paused / redesign |
| Battery Storage Battery storage |
19.3 MW | In study |
| Battery Storage Battery storage |
19.3 MW | In study |
| Battery storage project AH2-127, Burlington County Battery storage |
18.0 MW | In study |
| Battery storage project 49220, Buncombe County Battery storage · Duke Energy Progress, LLC |
17.3 MW | Agreement signed |
| Clutch City Storage I SLF Battery storage |
16.6 MW | Paused / redesign |
| Shands Energy Center Battery storage |
15.7 MW | Agreement signed |
| Battery storage project IC-1280, Floyd County Battery storage |
15.0 MW | Agreement signed |
| Battery storage project 23-09191, Larimer County Battery storage |
15.0 MW | In study |
| Luyster Creek Energy Storage 3 Battery storage · Eastern Generation, LLC |
15.0 MW | In study |
| Battery storage project G1064, Umatilla County Battery storage |
15.0 MW | In study |
| Arthur Kill Energy Storage 1 Battery storage · Lighthouse Arthur Kill, LLC |
15.0 MW | In study |
| Battery storage project AI2-483, Licking County Battery storage |
13.4 MW | In study |
| Battery storage project 634, Owyhee County Battery storage · Idaho Power Company‚ÄîPower Supply |
13.0 MW | Agreement signed |
| Battery storage project AI2-318, Gloucester County Battery storage |
12.8 MW | In study |
| Separator Expansion Battery storage |
12.6 MW | In study |
| Battery storage project GEN-2017-198, Douglas County Battery storage |
11.6 MW | Agreement signed |
Page 43 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)