MISO Interconnection Queue

Overview

The MISO interconnection queue endpoint provides access to real-time data from Midcontinent Independent System Operator (MISO) interconnection queue. MISO serves 15 states and one Canadian province across the Midwest and South.

MISO Coverage: Contains 1,500+ projects across the Midwest and South. Top technologies: Wind (500+ projects), Solar (400+ projects), Natural Gas (300+ projects), Battery Storage (200+ projects).

Endpoint

curl -H "x-api-key: your_api_key_here" \
  "https://api.cleanview.co/api/v1/interconnection/miso?limit=50"

Coverage Area

States Served: Arkansas, Illinois, Indiana, Iowa, Kentucky, Louisiana, Michigan, Minnesota, Mississippi, Missouri, Montana, North Dakota, Texas, Wisconsin, and parts of South Dakota. Also serves Manitoba, Canada.

Query Parameters

Parameter	Type	Default	Description
`limit`	integer	1000	Number of records to return (50-5000)
`offset`	integer	0	Number of records to skip
`state`	string	-	Filter by state code - supports comma-separated
`technology`	string	-	Filter by standardized technology type - supports comma-separated
`status`	string	-	Filter by standardized status
`min_capacity`	number	-	Minimum capacity in MW
`max_capacity`	number	-	Maximum capacity in MW
`developer`	string	-	Filter by developer name (supports partial matches)

Technology Distribution

Technology	Count	Description
`Wind`	500+	Wind turbine projects (dominant in MISO)
`Solar`	400+	Solar photovoltaic projects
`Natural Gas`	300+	Natural gas generation
`Battery`	200+	Battery energy storage systems
`Other`	100+	Other technologies

Status Options

Status	Description
`Planned`	Active projects in queue
`Operating`	Commercial operation achieved
`Cancelled`	Withdrawn or terminated

Example Requests

Get Wind Projects in Illinois

curl -H "x-api-key: your_api_key_here" \
  "https://api.cleanview.co/api/v1/interconnection/miso?technology=Wind&state=IL&limit=50"

Get Large Solar Projects (>100 MW)

curl -H "x-api-key: your_api_key_here" \
  "https://api.cleanview.co/api/v1/interconnection/miso?technology=Solar&min_capacity=100&limit=50"

Get Apex Clean Energy Projects

curl -H "x-api-key: your_api_key_here" \
  "https://api.cleanview.co/api/v1/interconnection/miso?developer=Apex&limit=50"

Filters for projects developed by Apex Clean Energy. Uses partial matching, so “Apex” matches “Apex Clean Energy”.

Response Schema

{
  "success": true,
  "iso": "MISO",
  "summary": {
    "limit": 50,
    "offset": 0,
    "total_results": 3571,
    "has_more": true,
    "current_page": 1,
    "total_pages": 72
  },
  "filters": {
    "state": null,
    "technology": null,
    "status": null,
    "min_capacity": null,
    "max_capacity": null,
    "developer": null
  },
  "data": [
    {
      "iso": "MISO",
      "queue_id": "J1000",
      "project_name": "Project J1000",
      "capacity_mw": 50,
      "technology": "Photovoltaic",
      "fuel": "Solar",
      "status": "Operating",
      "detailed_status": "Done",
      "operating_date": "2021-10-01T04:00:00.000Z",
      "request_date": "2018-03-12T04:00:00.000Z",
      "county": "Grant County",
      "state": "WI",
      "queue_position": null,
      "interconnecting_entity": null,
      "developer": "Alliant Energy",
      "study_cycle": "DPP-2018-APR",
      "study_group": "East (ATC)",
      "service_type": "NRIS",
      "balancing_authority_code": "MISO",
      "technology_normalized": "Solar",
      "project_id": "J1000",
      "request_status": "Done",
      "queue_date": "2018-03-12T04:00:00.000Z",
      "withdrawn_date": null,
      "done_date": "2021-04-02T04:00:00.000Z",
      "in_service_date": "2021-10-01T04:00:00.000Z",
      "transmission_owner": "American Transmission Co. LLC",
      "study_phase": "GIA",
      "poi_name": "Nelson Dewey - Lancaster 138kV Line",
      "summer_mw": 50,
      "winter_mw": 50,
      "fuel_type": "Solar",
      "facility_type": "Photovoltaic",
      "post_gia_status": "In Service",
      "negotiated_in_service_date": "2023-03-27T04:00:00.000Z",
      "dp1_eris_mw": 50,
      "dp1_nris_mw": 50,
      "dp2_eris_mw": 50,
      "dp2_nris_mw": 50,
      "winter_capacity_mw": 50,
      "summer_capacity_mw": 50
    },
    {
      "iso": "MISO",
      "queue_id": "J1846",
      "project_name": "Project J1846",
      "capacity_mw": 200,
      "technology": "Solar/Battery",
      "fuel": "Hybrid",
      "status": "Planned",
      "detailed_status": "Active",
      "operating_date": "2024-09-01T04:00:00.000Z",
      "request_date": "2021-07-22T04:00:00.000Z",
      "county": "Renville",
      "state": "MN",
      "queue_position": null,
      "interconnecting_entity": null,
      "developer": "Ranger Power",
      "study_cycle": "DPP-2021",
      "study_group": "West",
      "service_type": "NRIS",
      "balancing_authority_code": "MISO",
      "technology_normalized": "Hybrid - Solar + Storage",
      "project_id": "J1846",
      "request_status": "Active",
      "queue_date": "2021-07-22T04:00:00.000Z",
      "withdrawn_date": null,
      "done_date": null,
      "in_service_date": "2024-09-01T04:00:00.000Z",
      "transmission_owner": "GREAT RIVER ENERGY",
      "study_phase": "Phase 2",
      "poi_name": "PANTHER",
      "summer_mw": 200,
      "winter_mw": 200,
      "fuel_type": "Hybrid",
      "facility_type": "Solar/Battery",
      "post_gia_status": "Not Started",
      "negotiated_in_service_date": null,
      "dp1_eris_mw": 200,
      "dp1_nris_mw": 200,
      "dp2_eris_mw": 200,
      "dp2_nris_mw": 200,
      "winter_capacity_mw": 200,
      "summer_capacity_mw": 200
    }
  ]
}

Complete Upstream Data: Each project includes all 41 database columns from MISO’s interconnection queue at the top level. This provides complete transparency with both standardized fields (normalized across all ISOs) and MISO-specific raw fields like study_phase, post_gia_status, and Decision Point capacity breakdowns.

Response Fields

Core Identification Fields

Field	Type	Description
`iso`	string	Always “MISO” for MISO data
`queue_id`	string	Unique MISO queue identifier (e.g., “J1000”)
`project_id`	string	MISO project identifier, same as queue_id
`project_name`	string	Official project name in MISO queue
`balancing_authority_code`	string	Always “MISO”
`queue_position`	string	Queue position number (typically null for MISO)

Capacity & Technology

Field	Type	Description
`capacity_mw`	number	Project nameplate capacity in MW
`summer_capacity_mw`	number	Summer-rated capacity (MISO tracks seasonal variations)
`winter_capacity_mw`	number	Winter-rated capacity (MISO tracks seasonal variations)
`summer_mw`	number	Summer MW rating from MISO source
`winter_mw`	number	Winter MW rating from MISO source
`technology`	string	MISO’s technology classification (e.g., “Photovoltaic”)
`technology_normalized`	string	Standardized technology for cross-ISO filtering
`fuel`	string	Primary fuel source
`fuel_type`	string	Detailed fuel type from MISO source
`facility_type`	string	Facility/technology type from MISO source

Project Status & Dates

Field	Type	Description
`status`	string	Standardized status (Planned, Operating, Cancelled)
`detailed_status`	string	Original MISO status (e.g., “Active”, “Done”, “Withdrawn”)
`request_status`	string	Current request status in MISO process
`queue_date`	date	Date project entered MISO queue
`request_date`	date	Interconnection request submission date
`operating_date`	date	Expected/actual commercial operation date
`in_service_date`	date	Proposed in-service date
`negotiated_in_service_date`	date	Negotiated in-service date (if different from proposed)
`done_date`	date	Date project completed MISO process
`withdrawn_date`	date	Date project was withdrawn (if applicable)

Location

Field	Type	Description
`state`	string	Two-letter state code
`county`	string	County name where project is located

Study Process (DPP)

Field	Type	Description
`study_cycle`	string	Definitive Planning Phase cycle identifier (e.g., “DPP-2018-APR”)
`study_group`	string	Study group assignment (East, West, Central, South)
`study_phase`	string	Current DPP phase (Phase 1, Phase 2, Phase 3, GIA)

Decision Point Capacity Allocations

Field	Type	Description
`dp1_eris_mw`	number	Decision Point 1 ERIS capacity allocation in MW
`dp1_nris_mw`	number	Decision Point 1 NRIS capacity allocation in MW
`dp2_eris_mw`	number	Decision Point 2 ERIS capacity allocation in MW
`dp2_nris_mw`	number	Decision Point 2 NRIS capacity allocation in MW

Grid Connection & Service

Field	Type	Description
`service_type`	string	ERIS or NRIS interconnection service designation
`transmission_owner`	string	Transmission owner at point of interconnection
`poi_name`	string	Point of interconnection name and voltage level
`post_gia_status`	string	Generation Interconnection Agreement execution status

Developer Information

Field	Type	Description
`developer`	string	Developer name from Cleanview enrichment (limited coverage)
`interconnecting_entity`	string	Always null - not provided by MISO

MISO Queue Terminology

Understanding MISO-specific terms is essential for interpreting interconnection queue data.

Definitive Planning Phase (DPP)

MISO’s three-phase interconnection study process that replaced the old serial queue system in 2018. Projects progress sequentially through Phase 1 (feasibility assessment), Phase 2 (detailed system impact analysis), and Phase 3 (facilities study). Each phase has specific deliverables and timelines designed to accelerate project development.

Decision Points (DP1, DP2, DP3)

Critical milestones where developers must demonstrate project viability and commit financial security deposits. At each Decision Point, developers must confirm capacity allocations (ERIS/NRIS) and post additional security. Failure to meet Decision Point requirements results in automatic queue withdrawal.

Service Types

ERIS (Energy Resource Interconnection Service): Energy-only delivery service without capacity delivery rights. ERIS projects can inject energy into the grid but don’t receive capacity credit in MISO markets. NRIS (Network Resource Interconnection Service): Full network service with capacity delivery rights. NRIS projects can both deliver energy and receive capacity credit, but require more extensive system upgrades.

Study Groups

MISO processes projects in regional cohorts based on queue submission windows. Study groups are typically identified by geographic region (East, West, Central, South) and may include the transmission owner designation (e.g., “East (ATC)”, “East (ITC)”).

Study Cycles

Intake windows when MISO accepts new interconnection requests, typically identified by year and month (e.g., “DPP-2021”, “DPP-2018-APR”). All projects in a study cycle progress through the DPP phases together.

Generation Interconnection Agreement (GIA)

Final contractual agreement between generator and MISO governing interconnection terms, construction responsibilities, and operational requirements. Projects reaching “GIA” study phase have completed all technical studies and are finalizing interconnection contracts.

Seasonal Capacity Ratings

MISO tracks both summer and winter capacity ratings due to significant temperature variations across its multi-state footprint. Solar projects may have lower summer ratings due to heat effects, while wind projects often have higher winter output in the upper Midwest.

Field Availability: MISO does not provide interconnecting_entity information in their queue data. Use transmission_owner for transmission system connection details.

Raw Fields

Complete Upstream Data

Each project includes all database columns from MISO’s interconnection queue at the top level of the response. This provides complete transparency and access to specialized MISO fields with a clean, flat structure.

Complete Data Access: All 41 fields (19 standardized + 22 ISO-specific) are available at the top level. No nesting, no duplication.

MISO Raw Fields (22 additional fields)

Identification & Dates (8 fields)

project_id - MISO queue identifier (e.g., “J1000”)
queue_date - Queue entry date
request_status - Raw MISO status value
withdrawn_date - Project withdrawal date (if applicable)
done_date - Project completion date
in_service_date - Proposed in-service date
negotiated_in_service_date - Negotiated ISD (if different from proposed)

Interconnection Details (4 fields)

transmission_owner - Transmission owner at POI
poi_name - Point of Interconnection name and voltage
service_type - ERIS or NRIS designation
post_gia_status - Generator Interconnection Agreement status

Study Information (3 fields)

study_cycle - Definitive Planning Phase cycle (e.g., “DPP-2018-APR”)
study_group - Study group assignment (Central, East, South, West)
study_phase - Current study phase (DPP, GIA, etc.)

Capacity & Technology (5 fields)

summer_mw - Summer capacity rating
winter_mw - Winter capacity rating
fuel_type - Raw fuel type from MISO
facility_type - Raw facility/technology type
dp1_eris_mw, dp1_nris_mw - Decision Point 1 capacity breakdowns
dp2_eris_mw, dp2_nris_mw - Decision Point 2 capacity breakdowns

Location (2 fields)

county - County name
state - State code

Raw Field Use Cases

Changelog Integration

// Join projects with changelog using MISO's project_id
const project = data.data[0];
const projectId = project.project_id; // "J1000"
// Use this to query changelog API

Detailed Interconnection Analysis

// Access transmission owner and POI details
const transmission = project.transmission_owner;
const poi = project.poi_name;
const voltage = poi.match(/(\d+)\s*kV/)[1]; // Extract voltage

Study Status Tracking

// Track project through MISO study process
const phase = project.study_phase;
const cycle = project.study_cycle;
const giaStatus = project.post_gia_status;

Capacity Analysis

// Analyze ERIS vs NRIS capacity allocations
const erisCapacity = project.dp2_eris_mw;
const nrisCapacity = project.dp2_nris_mw;
const serviceType = project.service_type;

Data Updates: MISO queue data is updated based on MISO’s Generator Interconnection Queue reports.

Wind Focus: MISO territory has significant wind resources, particularly in the upper Midwest states. Wind projects typically have seasonal capacity variations reflected in the summer/winter capacity fields.

Authorizations

x-api-key

string

header

required

API key authentication using x-api-key header

Query Parameters

limit

integer

default:50

Number of records to return

Required range: 50 <= x <= 5000

offset

integer

default:0

Number of records to skip

state

string

Filter by state code

technology

string

Filter by technology type

min_capacity

number

Minimum capacity in MW

max_capacity

number

Maximum capacity in MW

Response

Successful response with MISO interconnection queue data

iso

string

Example:

"MISO"

summary

object

Summary metadata for pagination

Show child attributes

filters

object

Applied filters for the request

data

object[]

Array of interconnection queue records

Overview

EIA Data

Interconnection Queues

Projects

Overview

Endpoint

Coverage Area

Query Parameters

Technology Distribution

Status Options

Example Requests

Response Schema

Response Fields

Core Identification Fields

Capacity & Technology

Project Status & Dates

Location

Study Process (DPP)

Decision Point Capacity Allocations

Grid Connection & Service

Developer Information

MISO Queue Terminology

Definitive Planning Phase (DPP)

Decision Points (DP1, DP2, DP3)

Service Types

Study Groups

Study Cycles

Generation Interconnection Agreement (GIA)

Seasonal Capacity Ratings

Raw Fields

Complete Upstream Data

MISO Raw Fields (22 additional fields)

Raw Field Use Cases

Authorizations

Query Parameters

Response

Overview

EIA Data

Interconnection Queues

Projects

​Overview

​Endpoint

​Coverage Area

​Query Parameters

​Technology Distribution

​Status Options

​Example Requests

​Response Schema

​Response Fields

​Core Identification Fields

​Capacity & Technology

​Project Status & Dates

​Location

​Study Process (DPP)

​Decision Point Capacity Allocations

​Grid Connection & Service

​Developer Information

​MISO Queue Terminology

​Definitive Planning Phase (DPP)

​Decision Points (DP1, DP2, DP3)

​Service Types

​Study Groups

​Study Cycles

​Generation Interconnection Agreement (GIA)

​Seasonal Capacity Ratings

​Raw Fields

​Complete Upstream Data

​MISO Raw Fields (22 additional fields)

​Raw Field Use Cases

Authorizations

Query Parameters

Response

Overview

Endpoint

Coverage Area

Query Parameters

Technology Distribution

Status Options

Example Requests

Response Schema

Response Fields

Core Identification Fields

Capacity & Technology

Project Status & Dates

Location

Study Process (DPP)

Decision Point Capacity Allocations

Grid Connection & Service

Developer Information

MISO Queue Terminology

Definitive Planning Phase (DPP)

Decision Points (DP1, DP2, DP3)

Service Types

Study Groups

Study Cycles

Generation Interconnection Agreement (GIA)

Seasonal Capacity Ratings

Raw Fields

Complete Upstream Data

MISO Raw Fields (22 additional fields)

Raw Field Use Cases