Tracking U.S. ISO & utility interconnection queues

Tracking 33,800 interconnection queue requests from 1989 to 2024

What is the interconnection queue?
See data table & graphs here.

Queue changes in the last 1 week (see all)

U.S. county map of interconnection requests, 1989-2024

No. requests
For applied filter
Data last updated Apr 19, 2024, 9:15 PM UTC

1996-2024 interconnection capacity over time, all states, by date enqueued

No. requests
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1996-2024 interconnection requests & capacity by state

No. requests
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Data Table

No. requests
For applied filter


Q: Where is this data from?

A: This dataset has been built using publicly-available data from ISOs/RTOS and non-ISO utilities. We update this data at least once a day.

Q: What is an ISO, RTO, and/or non-ISO utility?

A: An Independent System Operator (ISO) or Regional Transmission Organization (RTO) is a non-profit organization that operates the high-voltage electric power transmission grid in a specific region, ensuring reliability and providing non-discriminatory access. ISOs and RTOs play a critical role in the electric power industry, helping to ensure that the grid is reliable and that electricity is delivered to consumers at a reasonable cost. Learn more about ISOs and RTOs here.A non-ISO utility is an electric utility that does not operate under the umbrella of an ISO or RTO. Non-ISO utilities are typically smaller utilities that operate in rural or remote areas, facing challenges such as meeting the same reliability standards as ISOs and RTOs, but without the same resources and economies of scale.

Q: What is an interconnection queue?

A: What is an interconnection queue? An interconnection queue is a list of power generation and transmission projects that have requested to connect to the electric grid. The queue is managed by the grid operator, which is typically an independent system operator (ISO) or regional transmission organization (RTO).

Q: Why is the interconnection queue important?

A: The interconnection queue is important because it ensures that new power generation and transmission projects can be safely and reliably connected to the grid. The grid operator reviews each project to assess its impact on the grid and to make sure that it will not compromise the reliability of the electric system. To learn more about interconnection queues, see this NPR Planet Money episode"Green Energy Gridlock"and this article/podcast from Volts.

Q: Where can I contact the owners, submit feature requests, get data, or submit an error?

A: Please email us if you have any questions, see an error, want to request data, or have feature requests.

Q: Who are you?
Tracking U.S. ISO & utility interconnection queues

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Interconnection queue requests by state

Interconnection queue requests by generation transmission owner

AECAEPAMEREN ILLINOISAMEREN MISSOURIAMEREN TRANSMISSION COMPANY OF ILLINOISAMERICAN TRANSMISSION COMPANYAMPTAPSARKANSAS ELECTRIC COOPERATIVE CORPORATIONATSIAlberta Electric System OperatorAmeren IllinoisAmeren MissouriAmeren Transmission Company of IllinoisAmerican Transmission Co.Arizona Public ServiceArkansas Electric Coop CorpAvista UtilitiesBEPCBGEBHEBIG RIVERS ELECTRIC CORPORATIONBlack Hills Colorado ElectricBonneville Power AdministrationCHG&ECHGECHGE/NM-NG/NYSEGCHGE/NM-NG/NYSEG/NYPACLECO CorporationCLECO POWERCMPCONEDCONED/CHG&ECONSUMERS ENERGY COMPANYCOOPERATIVE ENERGYCRCMCedar Falls UtilitiesCenHudChelan County Public Utility DistrictCity of Columbia, MOCity of Muscatine IACity of Springfield, IL - CWLPColorado Springs UtilitiesComEdConEdConEd, LIPAConEd, PJMConEd/CenHudConEd/NYPAConEd/NYSEGConEd/O&RConedCooperative EnergyDAIRYLAND POWER COOPERATIVEDCRTDEOKDLDPLDSLKDUKE ENERGY INDIANADairyland Power CooperativeDaytonDominionDominion Energy South CarolinaDukeDuke EnergyDuke Energy CarolinasDuke Energy CorporationDuke Energy FloridaDuke Energy IndianaDuke Energy ProgressEAST TEXAS ELECTRIC COOPERATIVE, INC.EDEEKPCENTERGY ARKANSASENTERGY LOUISIANAENTERGY MISSISSIPPIENTERGY MISSISSIPPI, LLC.ENTERGY TEXAS, INC.ERECEast Texas Electric CooperativeEl Paso Electric CompanyEntergyEntergy ArkansasEntergy LouisianaEntergy MississippiEntergy New OrleansEntergy Texas IncEssential PowerEvergyFlorida Power & LightGLWGMOGRDAGREAT RIVER ENERGYGreat River EnergyHOOSIER ENERGYHOOSIER ENERGY REC, INCHoosier Energy REC IncIIDINDIANAPOLIS POWER & LIGHT COMPANYINDNISO-NEITCITC MIDWESTITC MidwestITC TransmissionITCGPITCIIdaho Power CompanyIndianapolis Power Light CompanyJCPLKACPKACYKCPLKPPLAFAYETTE UTILITIES SYSTEMLAPTLESLIPALIPA, ConEd, NYPALS PowerLS Power/NYPALYRECLos Angeles Department of Water and PowerLouisville Gas & Electric and Kentucky Utilities (KU) EnergyMEMETCMICHIGAN PUBLIC POWER AGENCYMIDAMERICAN ENERGY COMPANYMIDWMINNESOTA POWERMINNESOTA POWER INC.MIPUMISO
MISSOURI RIVER ENERGY SERVICESMKECMONTANA-DAKOTA UTILITIES CO.MPSMWECMichigan Electric Transmission CompanyMichigan Public Power AgencyMinnesota Power (Allete Inc.)Missouri River Energy Services (MRES)N/ANAEANEETNGRIDNGridNGrid/ConEdNIPCONM-NGNM-NG, CHGE and NY TranscoNM-NG, ConEdNM-NG, NYPANM-NG, NYPA, ConEdNM-NG/CHNM-NG/CONEDNM-NG/Cen HudNM-NG/ConEdNM-NG/ConEd/O&R/CHGENM-NG/ConedNM-NG/NYPANM-NG/NYPA/Cen Hud/ConEd/NYSEGNM-NG/NYPA/ConEdNM-NG/NYPA/NYSEG/ConEdNM-NG/NYSEGNM-NG/NYSEG/CHGENM-NG/NYSEG/CHGE/ConEdNM-NG/O&R CHGE/ConEdNM/CONEDNORTHERN INDIANA PUBLIC SERVICE COMPANYNORTHERN STATES POWER COMPANYNPPDNSTARNUNV EnergyNYPANYPA ConEdNYPA, NM-NGNYPA/ConEdNYPA/NM-NGNYPA/NM-NG/ConEdNYPA/NM/CENYPA/NYSEGNYPA/NYSEG/NM-NGNYSEGNYSEG, ConEdNYSEG, NM-NGNYSEG/ConEdNYSEG/NM-NGNYSEG;NYTranscoNYTransco/NM-NGNorthWestern EnergyNorthern Indiana Public Service CompanyNorthern States Power (Xcel Energy)O & RO&RO&R, ConEd, LIPAO&R/ConEdODECOG&EOGEOPPDOTTER TAIL POWER COMPANYOVECOrlando Utilities CommissionOtter Tail Power CompanyPECOPENELECPEPCOPGAEPPLPRAIRIE POWER, INC.PSEGPSEG; PSEGPacifiCorpPortland General ElectricPublic Service Company Of ColoradoPublic Service Company of New MexicoPuget Sound EnergyRERECORG&ERGESCESDGESMECOSMMPASOUTH MISSISSIPPI ELECTRIC POWER ASSOCIATIONSOUTHERN MINNESOTA MUNICIPAL POWER AGENCYSPRMSPSSUNCSWPASacramento Municipal Utility DistrictSalt River ProjectSan Diego Gas & ElectricSantee CooperSouthern California EdisonSouthern CompanySouthern Illinois Power CooperativeSouthern Indiana Gas & Electric Company d/b/a Vectren Energy Delivery of Indiana, Inc.Southern Minnesota Municipal Power AgencyTEUSTacoma Public UtilitiesTampa Electric CompanyTennessee Valley AuthorityTranscoTri-StateTri-State Generation and Transmission AssociationTucson Electric Power CompanyUGIUIUnknownVEAVillage of ArcadeWAPAWAPA Rocky Mountain RegionWEREWFECWOLVERINE POWER SUPPLY COOPERATIVE INC.Wabash Valley PowerWolverine Power Supply Cooperative IncXcelXcel EnergyXcel/SPS

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