MISO Interconnection Queue

MISO's public generator interconnection queue, including project identity, developer, county and state, proposed point of interconnection, transmission owner, technology, requested capacity, status, and negotiated or actual completion dates where published.

Infrastructure data MISO market

Query with the agent Open on map

Native record

queue project x effective snapshot x fetch snapshot

daily snapshot publication cadence

Evidence

Reference data

Stable context used to interpret other datasets

In Ask the Grid

Interconnection queue on the MISO map

Values for the live grid surface

Overview

Each posting is a snapshot: current totals must use one latest snapshot, and requested queue MW is not operating capacity, available transmission headroom, completed study work, or evidence that a project will be built.

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Separate active, completed/in-service, and withdrawn statuses before totaling requested capacity.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.

MISO MCP API reference

HTTP endpoint

POST /api/v1/datasets/miso_interconnection_queue/query

Schema20

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')

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
2026-09-03 22:01:48.000000	2026-09-27 09:00:41.132128	J4294	∅	∅	∅	∅	∅	∅	∅	100	100	100	2026-09-03 22:01:48.000000	Active	∅	∅	∅	2031-06-01 04:00:00.000000	2026-09-27 09:00:42.960066
2026-09-01 16:17:55.000000	2026-09-27 09:00:41.132128	J4281	∅	∅	∅	∅	∅	ENTERGY ARKANSAS, LLC EATO	∅	481.2	481.2	481.2	2026-09-01 16:17:55.000000	Active	∅	∅	∅	2030-04-15 04:00:00.000000	2026-09-27 09:00:42.960066
2026-09-01 16:17:55.000000	2026-09-26 09:00:41.431907	J4281	∅	∅	∅	∅	∅	ENTERGY ARKANSAS, LLC EATO	∅	481.2	481.2	481.2	2026-09-01 16:17:55.000000	Active	∅	∅	∅	2030-04-15 04:00:00.000000	2026-09-26 09:00:43.307440
2026-09-01 16:17:55.000000	2026-09-25 09:00:40.677047	J4281	∅	∅	∅	∅	∅	ENTERGY ARKANSAS, LLC EATO	∅	481.2	481.2	481.2	2026-09-01 16:17:55.000000	Active	∅	∅	∅	2030-04-15 04:00:00.000000	2026-09-25 09:00:48.310472
2026-09-01 16:17:55.000000	2026-09-24 09:01:21.722967	J4281	∅	∅	∅	∅	∅	ENTERGY ARKANSAS, LLC EATO	∅	481.2	481.2	481.2	2026-09-01 16:17:55.000000	Active	∅	∅	∅	2030-04-15 04:00:00.000000	2026-09-24 09:01:24.290697
2026-09-01 16:17:55.000000	2026-09-23 09:00:42.779955	J4281	∅	∅	∅	∅	∅	ENTERGY ARKANSAS, LLC EATO	∅	481.2	481.2	481.2	2026-09-01 16:17:55.000000	Active	∅	∅	∅	2030-04-15 04:00:00.000000	2026-09-23 09:00:44.564569
2026-09-01 05:02:38.000000	2026-09-27 09:00:41.132128	J4283	∅	∅	∅	∅	∅	AMEREN TRANSMISSION COMPANY OF ILLINOIS	∅	243.4	243.4	243.4	2026-09-01 05:02:38.000000	Active	∅	∅	∅	2030-04-15 04:00:00.000000	2026-09-27 09:00:42.960066
2026-09-01 05:02:38.000000	2026-09-26 09:00:41.431907	J4283	∅	∅	∅	∅	∅	AMEREN TRANSMISSION COMPANY OF ILLINOIS	∅	243.4	243.4	243.4	2026-09-01 05:02:38.000000	Active	∅	∅	∅	2030-04-15 04:00:00.000000	2026-09-26 09:00:43.307440
2026-09-01 05:02:38.000000	2026-09-25 09:00:40.677047	J4283	∅	∅	∅	∅	∅	AMEREN TRANSMISSION COMPANY OF ILLINOIS	∅	243.4	243.4	243.4	2026-09-01 05:02:38.000000	Active	∅	∅	∅	2030-04-15 04:00:00.000000	2026-09-25 09:00:48.310472
2026-09-01 05:02:38.000000	2026-09-24 09:01:21.722967	J4283	∅	∅	∅	∅	∅	AMEREN TRANSMISSION COMPANY OF ILLINOIS	∅	243.4	243.4	243.4	2026-09-01 05:02:38.000000	Active	∅	∅	∅	2030-04-15 04:00:00.000000	2026-09-24 09:01:24.290697
2026-09-01 05:02:38.000000	2026-09-23 09:00:42.779955	J4283	∅	∅	∅	∅	∅	AMEREN TRANSMISSION COMPANY OF ILLINOIS	∅	243.4	243.4	243.4	2026-09-01 05:02:38.000000	Active	∅	∅	∅	2030-04-15 04:00:00.000000	2026-09-23 09:00:44.564569
2026-09-01 05:00:35.000000	2026-09-27 09:00:41.132128	J4282	∅	∅	∅	∅	∅	AMEREN TRANSMISSION COMPANY OF ILLINOIS	∅	242.8	242.8	242.8	2026-09-01 05:00:35.000000	Active	∅	∅	∅	2030-04-15 04:00:00.000000	2026-09-27 09:00:42.960066
2026-09-01 05:00:35.000000	2026-09-26 09:00:41.431907	J4282	∅	∅	∅	∅	∅	AMEREN TRANSMISSION COMPANY OF ILLINOIS	∅	242.8	242.8	242.8	2026-09-01 05:00:35.000000	Active	∅	∅	∅	2030-04-15 04:00:00.000000	2026-09-26 09:00:43.307440
2026-09-01 05:00:35.000000	2026-09-25 09:00:40.677047	J4282	∅	∅	∅	∅	∅	AMEREN TRANSMISSION COMPANY OF ILLINOIS	∅	242.8	242.8	242.8	2026-09-01 05:00:35.000000	Active	∅	∅	∅	2030-04-15 04:00:00.000000	2026-09-25 09:00:48.310472
2026-09-01 05:00:35.000000	2026-09-24 09:01:21.722967	J4282	∅	∅	∅	∅	∅	AMEREN TRANSMISSION COMPANY OF ILLINOIS	∅	242.8	242.8	242.8	2026-09-01 05:00:35.000000	Active	∅	∅	∅	2030-04-15 04:00:00.000000	2026-09-24 09:01:24.290697
2026-09-01 05:00:35.000000	2026-09-23 09:00:42.779955	J4282	∅	∅	∅	∅	∅	AMEREN TRANSMISSION COMPANY OF ILLINOIS	∅	242.8	242.8	242.8	2026-09-01 05:00:35.000000	Active	∅	∅	∅	2030-04-15 04:00:00.000000	2026-09-23 09:00:44.564569
2026-09-01 00:45:02.000000	2026-09-27 09:00:41.132128	J4293	∅	∅	∅	∅	∅	∅	∅	242.8	242.8	242.8	2026-09-01 00:45:02.000000	Active	∅	∅	∅	2030-04-15 04:00:00.000000	2026-09-27 09:00:42.960066
2026-09-01 00:45:02.000000	2026-09-26 09:00:41.431907	J4293	∅	∅	∅	∅	∅	∅	∅	242.8	242.8	242.8	2026-09-01 00:45:02.000000	Active	∅	∅	∅	2030-04-15 04:00:00.000000	2026-09-26 09:00:43.307440
2026-09-01 00:40:58.000000	2026-09-27 09:00:41.132128	J4292	∅	∅	∅	∅	∅	∅	∅	242.3	242.3	242.3	2026-09-01 00:40:58.000000	Active	∅	∅	∅	2030-04-15 04:00:00.000000	2026-09-27 09:00:42.960066
2026-09-01 00:40:58.000000	2026-09-26 09:00:41.431907	J4292	∅	∅	∅	∅	∅	∅	∅	242.3	242.3	242.3	2026-09-01 00:40:58.000000	Active	∅	∅	∅	2030-04-15 04:00:00.000000	2026-09-26 09:00:43.307440
2026-08-29 02:17:46.000000	2026-09-27 09:00:41.132128	J4296	∅	∅	Vermillion	∅	∅	DUKE ENERGY INDIANA, LLC CIN	∅	1440	1440	1440	2026-08-29 02:17:46.000000	Active	∅	∅	∅	2031-10-01 04:00:00.000000	2026-09-27 09:00:42.960066
2026-08-29 01:04:17.000000	2026-09-27 09:00:41.132128	J4286	∅	∅	∅	∅	∅	ENTERGY MISSISSIPPI, LLC. EMTO	∅	770	770	770	2026-08-29 01:04:17.000000	Active	∅	∅	∅	2030-05-31 04:00:00.000000	2026-09-27 09:00:42.960066
2026-08-29 01:04:17.000000	2026-09-26 09:00:41.431907	J4286	∅	∅	∅	∅	∅	ENTERGY MISSISSIPPI, LLC. EMTO	∅	770	770	770	2026-08-29 01:04:17.000000	Active	∅	∅	∅	2030-05-31 04:00:00.000000	2026-09-26 09:00:43.307440
2026-08-29 01:04:17.000000	2026-09-25 09:00:40.677047	J4286	∅	∅	∅	∅	∅	ENTERGY MISSISSIPPI, LLC. EMTO	∅	770	770	770	2026-08-29 01:04:17.000000	Active	∅	∅	∅	2030-05-31 04:00:00.000000	2026-09-25 09:00:48.310472
2026-08-29 01:04:17.000000	2026-09-24 09:01:21.722967	J4286	∅	∅	∅	∅	∅	ENTERGY MISSISSIPPI, LLC. EMTO	∅	770	770	770	2026-08-29 01:04:17.000000	Active	∅	∅	∅	2030-05-31 04:00:00.000000	2026-09-24 09:01:24.290697

Coverage

14.8% complete3,544 gap days616 days with data

Show coverage history

Coverage: 14.8%Days with data: 616Gaps: 3,544

2026

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

gaplessmore

Related infrastructure data

Related infrastructure data
Dataset	Description
Live System SnapshotMISO · 1-minute snapshots	The compact public MISO dashboard snapshot, retaining each publisher title and raw string value for demand, capacity, and interchange headlines. Prefer the typed live_load, live_capacity, and live_grid_metrics tables for calculations.
MISO Price LocationsMISO · slow-moving dimension, refreshed every 6 hours	Every MISO location that carries a price, as three columns: location_id, name, and kind. 325 rows — generator (274), interface (22), zone (21), hub (8). This is the dimension the MISO 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 MISO, name equals location_id (the node name, e.g. ALTE.1ROCKGEN). MISO publishes no pricing-node registry, so this dimension is assembled from grid.entities rather than from a MISO feed. It covers MISO's hub and zone roll-up, which is coarser than a full nodal set. The same three columns exist for every market, so the equivalent question in another ISO is the same query against that ISO's table.
Baja California (CENACE) Price LocationsBCA · slow-moving dimension, refreshed every 6 hours	Every Baja California (CENACE) location that carries a price, as three columns: location_id, name, and kind. 4 rows — zone (4). This is the dimension the Baja California (CENACE) 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 Baja California, location_id is CENACE's load zone (TIJUANA, MEXICALI, ENSENADA, SANLUIS) and joins cenace.zonal_prices.load_zone; name is the city it is named for. CENACE prices Baja California by load zone only; there are no nodes or hubs in this dimension. The same three columns exist for every market, so the equivalent question in another ISO is the same query against that ISO's table.
Baja Grid Footprint (OpenStreetMap)OpenStreetMap · weekly snapshot	The administrative boundaries that make up the Baja California control area's footprint: Baja California and San Luis Rio Colorado, Sonora.