SPP Interconnection Queue

Overview

The SPP interconnection queue endpoint provides access to real-time data from Southwest Power Pool’s interconnection queue. SPP serves the central United States with significant wind resources.

SPP Coverage: Contains 800+ projects across the central U.S. Top technologies: Wind (400+ projects), Solar (200+ projects), Battery Storage (100+ projects), Natural Gas (100+ projects).

Endpoint

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

Coverage Area

States Served: Arkansas, Kansas, Louisiana, Missouri, Nebraska, New Mexico, Oklahoma, and Texas, with portions of Iowa, Minnesota, Montana, North Dakota, South Dakota, and Wyoming.

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`	400+	Wind turbine projects (dominant in SPP territory)
`Solar`	200+	Solar photovoltaic projects
`Battery`	100+	Battery energy storage systems
`Natural Gas`	100+	Natural gas generation
`Other`	50+	Other technologies

Status Options

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`Cancelled`	Withdrawn or terminated

Top States by Project Count

State	Project Count	Top Technology
Oklahoma	340	Wind, Solar
Kansas	199	Wind
Nebraska	129	Wind
Texas	106	Wind, Solar
New Mexico	75	Solar, Wind

Example Requests

Get Wind Projects in Kansas

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

Get Large Solar Projects (>100 MW)

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

Get NextEra Energy Projects

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

Filters for projects developed by NextEra Energy Resources. Uses partial matching to find all NextEra projects in SPP territory.

Response Schema

{
  "iso": "SPP",
  "summary": {
    "limit": 50,
    "offset": 0,
    "total_results": 2806,
    "has_more": true,
    "current_page": 1,
    "total_pages": 57
  },
  "filters": {
    "state": null,
    "technology": null,
    "status": null,
    "min_capacity": null,
    "max_capacity": null,
    "developer": null
  },
  "data": [
    {
      "iso": "SWPP",
      "queue_id": "GEN-2011-019",
      "project_name": "Woodward County",
      "capacity_mw": 175,
      "technology": "Wind",
      "fuel": null,
      "status": "Planned",
      "detailed_status": "IA FULLY EXECUTED/ON SCHEDULE",
      "operating_date": "2027-12-31",
      "request_date": "3/31/2011",
      "county": "Woodward County",
      "state": "OK",
      "queue_position": null,
      "interconnecting_entity": null,
      "developer": null,
      "balancing_authority_code": "SWPP",
      "technology_normalized": "Wind",
      "generation_interconnection_number": "GEN-2011-019",
      "ifs_queue_number": null,
      "current_cluster": "DISIS-2011-001-8",
      "cluster_group": "04 SOUTHEAST",
      "nearest_town_or_county": "Woodward County",
      "to_at_poi": "OGE",
      "in_service_date": "2012-12-31",
      "commercial_operation_date": "2027-12-31",
      "cessation_date": null,
      "original_generator_commercial_op_date": null,
      "capacity": 175,
      "max_summer_mw": 175,
      "max_winter_mw": 175,
      "service_type": "ER/NR",
      "requested_maximum_injection_capability_mw": 0,
      "requested_network_resource_deliverability_mw": 0,
      "nameplate_capacity": 0,
      "generation_type": "Wind",
      "fuel_type": null,
      "substation_or_line": "Woodward EHV 345kV",
      "request_received": "3/31/2011",
      "date_withdrawn": null,
      "jtiq_participant": null,
      "jtiq_commitment": null,
      "cause_of_delay": null,
      "status_detailed": "IA FULLY EXECUTED/ON SCHEDULE"
    }
  ]
}

Complete Upstream Data: Each project includes all 43 database columns from SPP’s interconnection queue at the top level. This provides complete transparency with both standardized fields (normalized across all ISOs) and SPP-specific raw fields like generation_interconnection_number, current_cluster, and jtiq_participant.

Response Fields

Core Identification Fields

Field	Type	Description
`iso`	string	Always “SWPP” for SPP data
`queue_id`	string	Unique SPP queue identifier (e.g., “GEN-2011-019”)
`generation_interconnection_number`	string	Official SPP Generation Interconnection Request number
`ifs_queue_number`	string	SPP Integrated Facilities Study queue number (if applicable)
`project_name`	string	Official project name in SPP queue
`balancing_authority_code`	string	Always “SWPP”
`queue_position`	string	Queue position number (typically null in SPP data)

Capacity & Technology

Field	Type	Description
`capacity_mw`	number	Project nameplate capacity in MW
`capacity`	number	Duplicate of capacity_mw for compatibility
`max_summer_mw`	number	Maximum summer capacity rating in MW
`max_winter_mw`	number	Maximum winter capacity rating in MW
`nameplate_capacity`	number	Generator nameplate capacity in MW
`requested_maximum_injection_capability_mw`	number	Requested maximum MW injection to grid
`requested_network_resource_deliverability_mw`	number	Requested network resource deliverability capacity in MW
`technology`	string	SPP’s technology classification (e.g., “Wind”, “Solar”)
`generation_type`	string	Detailed generation type from SPP source
`technology_normalized`	string	Standardized technology for cross-ISO filtering
`fuel`	string	Primary fuel source code
`fuel_type`	string	Detailed fuel type description with hybrid notation

Project Status & Dates

Field	Type	Description
`status`	string	Standardized status (Planned, Operating, Cancelled, Inactive)
`detailed_status`	string	Original SPP detailed status code
`status_detailed`	string	Duplicate of detailed_status for compatibility
`request_date`	string	Interconnection request submission date
`request_received`	string	Date SPP received interconnection request
`in_service_date`	string	Originally scheduled in-service date
`operating_date`	string	Expected or actual commercial operation date
`commercial_operation_date`	string	Actual commercial operation date when achieved
`original_generator_commercial_op_date`	string	Original projected commercial operation date
`date_withdrawn`	string	Date project was withdrawn from queue (if applicable)
`cessation_date`	string	Date project operations ceased (if applicable)

Location

Field	Type	Description
`state`	string	State code (OK, KS, NE, TX, NM, MO, ND, AR, SD, LA, MT, IA, MN)
`county`	string	County name where project is located
`nearest_town_or_county`	string	Nearest town or county from SPP source

Study Process & Cluster Information

Field	Type	Description
`current_cluster`	string	Current DISIS cluster assignment (e.g., “DISIS-2011-001-8”)
`cluster_group`	string	SPP transmission zone for cluster studies (e.g., “04 SOUTHEAST”)
`cause_of_delay`	string	Reason for study process delays (if applicable)

Grid Connection & Service

Field	Type	Description
`service_type`	string	Interconnection service type (ER, NR, or ER/NR)
`to_at_poi`	string	Transmission Owner at Point of Interconnection
`substation_or_line`	string	Specific substation or transmission line for interconnection
`interconnecting_entity`	string	Interconnecting utility entity (typically null)

SPP-Specific Fields

Field	Type	Description
`jtiq_participant`	string	Joint Targeted Interconnection Queue participant (Yes/No/null)
`jtiq_commitment`	number	JTIQ financial commitment amount (if applicable)

Developer Information

Field	Type	Description
`developer`	string	Developer name from Cleanview enrichment (limited coverage)

SPP Queue Terminology

DISIS (Definitive Interconnection System Impact Study)

SPP’s cluster study process where projects are studied in annual cohorts grouped by transmission zone. Projects are studied together to assess cumulative system impacts and allocate network upgrade costs equitably among projects in each cluster.

Cluster Groups

SPP divides its territory into transmission zones (e.g., “04 SOUTHEAST”, “03 CENTRAL”) for organizing DISIS cluster studies. Each annual DISIS cohort (e.g., “DISIS-2011-001”) contains projects grouped by these zones for efficient regional analysis.

Service Types

ER (Energy Resource): Energy-only interconnection without transmission network upgrade obligations
NR (Network Resource): Full network service requiring participation in network upgrade costs and providing firm transmission capacity
ER/NR: Hybrid service combining both energy resource and network resource interconnection rights

JTIQ (Joint Targeted Interconnection Queue)

Coordinated interconnection study process for projects located at the SPP/MISO seam requiring joint analysis by both ISOs to assess impacts on both systems.

Generation Interconnection Agreement (GIA)

Final contract between generator and SPP governing interconnection terms, cost allocation, operational requirements, and construction milestones.

Status Categories

SPP tracks detailed project status through multiple study phases:

IA FULLY EXECUTED/ON SCHEDULE: Interconnection Agreement signed and project on schedule
IA FULLY EXECUTED/COMMERCIAL OPERATION: Project has achieved commercial operation
IA FULLY EXECUTED/ON SUSPENSION: Agreement executed but study process suspended
IA PENDING: Interconnection Agreement pending execution
DISIS STAGE: In Definitive Interconnection System Impact Study phase
FACILITY STUDY STAGE: In Facilities Study phase evaluating specific interconnection facilities
FEASIBILITY: In Feasibility Study phase
ERAS: In Early Risk Assessment Study phase (optional pre-study)
WITHDRAWN: Project withdrawn from queue by developer
TERMINATED: Project terminated by SPP

Data Updates: SPP queue data is updated based on Southwest Power Pool’s Generation Interconnection queue reports.

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 SPP interconnection queue data

iso

string

Example:

"SPP"

summary

object

Summary metadata for pagination

Show child attributes

summary.limit

integer

Number of records per page

summary.offset

integer

Number of records to skip

summary.total_results

integer

Total number of records matching the query

summary.has_more

boolean

Whether additional records exist beyond this page

summary.current_page

integer

Current page number (1-indexed)

summary.total_pages

integer

Total number of pages available

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

Top States by Project Count

Example Requests

Response Schema

Response Fields

Core Identification Fields

Capacity & Technology

Project Status & Dates

Location

Study Process & Cluster Information

Grid Connection & Service

SPP-Specific Fields

Developer Information

SPP Queue Terminology

DISIS (Definitive Interconnection System Impact Study)

Cluster Groups

Service Types

JTIQ (Joint Targeted Interconnection Queue)

Generation Interconnection Agreement (GIA)

Status Categories

Authorizations

Query Parameters

Response

Overview

EIA Data

Interconnection Queues

Projects

​Overview

​Endpoint

​Coverage Area

​Query Parameters

​Technology Distribution

​Status Options

​Top States by Project Count

​Example Requests

​Response Schema

​Response Fields

​Core Identification Fields

​Capacity & Technology

​Project Status & Dates

​Location

​Study Process & Cluster Information

​Grid Connection & Service

​SPP-Specific Fields

​Developer Information

​SPP Queue Terminology

​DISIS (Definitive Interconnection System Impact Study)

​Cluster Groups

​Service Types

​JTIQ (Joint Targeted Interconnection Queue)

​Generation Interconnection Agreement (GIA)

​Status Categories

Authorizations

Query Parameters

Response

Overview

Endpoint

Coverage Area

Query Parameters

Technology Distribution

Status Options

Top States by Project Count

Example Requests

Response Schema

Response Fields

Core Identification Fields

Capacity & Technology

Project Status & Dates

Location

Study Process & Cluster Information

Grid Connection & Service

SPP-Specific Fields

Developer Information

SPP Queue Terminology

DISIS (Definitive Interconnection System Impact Study)

Cluster Groups

Service Types

JTIQ (Joint Targeted Interconnection Queue)

Generation Interconnection Agreement (GIA)

Status Categories