ERCOT Interconnection Queue

ERCOT's public large-generation interconnection queue, with project identity, developer, proposed point of interconnection, transmission owner, technology, requested MW, queue status, and proposed or actual completion dates.

Infrastructure data ERCOT market

Query with the agent Open on map

Native record

queue project x effective snapshot x fetch snapshot

monthly snapshot publication cadence

Evidence

Reference data

Stable context used to interpret other datasets

In Ask the Grid

Interconnection queue on the ERCOT map

Values for the live grid surface

Overview

Each posting is a snapshot, so current project claims must use the latest snapshot rather than count every vintage. Queue inclusion and proposed dates do not establish available transmission headroom, study outcome, approval, construction probability, or an operating asset. The official source is ERCOT's GIS Report.

Query contract

For current project state, select the maximum snapshot_time first, then preserve one row per queue_id. Keep older snapshots only for explicit history-of-status analysis.

Analysis rules

Never sum capacity across snapshots; aggregate only the canonical project rows from one snapshot.
Separate active, completed/in-service, and withdrawn statuses before totaling requested capacity.

Interpretation

Queue MW is requested interconnection capacity, not installed, operating, accredited, or likely-to-complete capacity.
Queue status and proposed completion dates do not establish available headroom, study outcome, approval, or construction probability.

Access

Query from your own tools

Use the guarded HTTP endpoint directly, or connect an MCP client and load the dataset contract with describe_data before calling query_data.

ERCOT MCP API reference

HTTP endpoint

POST /api/v1/datasets/ercot_interconnection_queue/query

Need the full history of this dataset in Snowflake, Databricks or your own storage? Data services delivers it on a schedule.

Schema52

Column

Type

event_timeDateTime64(6, 'UTC')

snapshot_timeDateTime64(6, 'UTC')

queue_idLowCardinality(String)

project_nameNullable(String)

interconnecting_entityNullable(String)

countyNullable(String)

stateNullable(String)

interconnection_locationNullable(String)

transmission_ownerNullable(String)

generation_typeNullable(String)

capacity_mwNullable(Float64)

summer_capacity_mwNullable(Float64)

winter_capacity_mwNullable(Float64)

queue_dateNullable(DateTime64(6, 'UTC'))

statusNullable(String)

proposed_completion_dateNullable(DateTime64(6, 'UTC'))

withdrawn_dateNullable(DateTime64(6, 'UTC'))

withdrawal_commentNullable(String)

actual_completion_dateNullable(DateTime64(6, 'UTC'))

ingested_atDateTime64(6, 'UTC')

fuelNullable(String)

technologyNullable(String)

gim_study_phaseNullable(String)

cdr_reporting_zoneNullable(String)

project_size_categoryNullable(String)

screening_study_startedNullable(DateTime64(6, 'UTC'))

screening_study_completeNullable(DateTime64(6, 'UTC'))

fis_requestedNullable(DateTime64(6, 'UTC'))

fis_approvedNullable(DateTime64(6, 'UTC'))

economic_study_requiredNullable(String)

ia_signedNullable(DateTime64(6, 'UTC'))

air_permitNullable(String)

air_permit_dateNullable(DateTime64(6, 'UTC'))

ghg_permitNullable(String)

ghg_permit_dateNullable(DateTime64(6, 'UTC'))

water_availabilityNullable(String)

water_availability_dateNullable(DateTime64(6, 'UTC'))

meets_planningNullable(String)

meets_planning_dateNullable(DateTime64(6, 'UTC'))

meets_all_planningNullable(String)

meets_all_planning_dateNullable(DateTime64(6, 'UTC'))

construction_startNullable(DateTime64(6, 'UTC'))

construction_endNullable(DateTime64(6, 'UTC'))

approved_for_energizationNullable(DateTime64(6, 'UTC'))

approved_for_synchronizationNullable(DateTime64(6, 'UTC'))

model_ready_dateNullable(DateTime64(6, 'UTC'))

financial_securityNullable(String)

change_indicatorsNullable(String)

commissioning_categoryNullable(String)

commentNullable(String)

source_sheetNullable(String)

source_doc_idNullable(Int64)

Sample data

event_time	snapshot_time	queue_id	project_name	interconnecting_entity	county	state	interconnection_location	transmission_owner	generation_type	capacity_mw	summer_capacity_mw	winter_capacity_mw	queue_date	status	proposed_completion_date	withdrawn_date	withdrawal_comment	actual_completion_date	ingested_at	fuel	technology	gim_study_phase	cdr_reporting_zone	project_size_category	screening_study_started	screening_study_complete	fis_requested	fis_approved	economic_study_required	ia_signed	air_permit	air_permit_date	ghg_permit	ghg_permit_date	water_availability	water_availability_date	meets_planning	meets_planning_date	meets_all_planning	meets_all_planning_date	construction_start	construction_end	approved_for_energization	approved_for_synchronization	model_ready_date	financial_security	change_indicators	commissioning_category	comment	source_sheet	source_doc_id
2030-12-31 00:00:00.000000	2026-04-02 00:00:00.000000	29INR0158	NRG Prairie Energy Center	NRG Prairie Energy Center LLC	Hill	Texas	Tap 345 kV 1907 Venus Switch - 3383 Bynum ckt 1.	∅	GAS/CC	1253	∅	∅	2030-12-31 00:00:00.000000	Active	2030-12-31 00:00:00.000000	∅	∅	∅	2026-09-05 02:18:13.429872	GAS	CC	SS Started, FIS Started, No IA	NORTH	Large	∅	∅	2026-03-25 00:00:00.000000	∅	∅	∅	∅	∅	∅	∅	∅	∅	∅	∅	∅	∅	∅	∅	∅	∅	∅	∅	∅	∅	∅	Project Details - Large Gen	1210876874

Coverage

19.1% complete7,225 gap days1,705 days with data

Show coverage history

Coverage: 19.1%Days with data: 1,705Gaps: 7,225

2030

2029

2028

2027

2026

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

gaplessmore

Related infrastructure data

Related infrastructure data
Dataset	Description
ERCOT Price LocationsERCOT · slow-moving dimension, refreshed every 6 hours	Every ERCOT location that carries a price, as three columns: location_id, name, and kind. 20,456 rows — bus (19,329), node (1,100), weather_zone (8), zone (8), hub (7), interface (4). This is the dimension the ERCOT price, and where applicable constraint, tables join to, and it is the one place a location's type is decided: resolve "which hubs exist", "is this a zone or a node", or "give me the readable name for this id" here rather than inferring a type from a name prefix. For ERCOT, name equals location_id — the settlement-point name is the identifier. The key is (location_id, kind), not location_id alone: 161 ERCOT names exist as both a settlement point and an electrical bus, and those are separately priced objects. Filter on kind when a name could be either. The same three columns exist for every market, so the equivalent question in another ISO is the same query against that ISO's table.
NP4-160-SG CCP resource mapping memberERCOT · Publisher snapshot	ERCOT's NP4-160-SG CCP resource mapping member. Each row preserves a publisher record, workbook row, or report document with its source member and row index. Source timestamps, units, geographic scope, and revision qualifiers are retained in record_json; event_time is collection time; completed_at is when the entire document became available.
NP4-160-SG NOIE mapping memberERCOT · Publisher snapshot	ERCOT's NP4-160-SG NOIE mapping member. Each row preserves a publisher record, workbook row, or report document with its source member and row index. Source timestamps, units, geographic scope, and revision qualifiers are retained in record_json; event_time is collection time; completed_at is when the entire document became available.
Resource Node → Unit MappingERCOT · weekly (snapshot)	ERCOT's weekly registration crosswalk between resource nodes and registered generation units. It can establish the published node-to-unit relationship for a particular snapshot. It does not establish dispatch, ownership, substation topology, constraint exposure, or the cause of a nodal price move. This table is listed in the public catalog but is not exposed to agent SQL until its snapshot and identity semantics are fully contracted. The source is ERCOT report NP4-160-SG.