AESO

AESO Unit Commitment API

The UnitCommitment API from AESO — 1 operation(s) for unitcommitment.

GitHub OpenAPI

Operations 1

GET /unitCommitment Fetch Unit Commitment Directive Data #

Documentation

📖
Documentation
https://www.aeso.ca/market/market-and-system-reporting/aeso-application-programming-interface-api/
📖
APIReference
https://developer-apim.aeso.ca/apis

Specifications

⚙
OpenAPI
https://raw.githubusercontent.com/api-evangelist/aeso/refs/heads/main/openapi/aeso-unitcommitment-api-openapi.yml

Other Resources

🔗
Onboarding
https://www.aeso.ca/assets/downloads/external/api/API-Access-Instructions-APIM-API-Gateway.pdf

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OpenAPI Specification

aeso-unitcommitment-api-openapi.yml Raw ↑ 
openapi: 3.2.0
info:
  title: Data Unit Commitment API
  description: Get Unit Commitment Directives report data
  version: v2
servers:
- url: https://apimgw.aeso.ca/public/unitcommitmentdata-api
- url: https://gateway-apim.aeso.ca/public/unitcommitmentdata-api
security:
- {}
- apiKeyHeader: []
- apiKeyQuery: []
tags:
- name: UnitCommitment
paths:
  /unitCommitment:
    get:
      operationId: getUnitCommitmentDataReportV11ForDateRange
      summary: Fetch Unit Commitment Directive Data
      description: Fetch generating unit commitment directive data for a date range
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/UnitCommitmentDataV2Report'
              examples:
                default:
                  value:
                    unit_commitment:
                    - asset_ID: string
                      issued_time_utc: string
                      issued_time_mpt: string
                      begin_time_utc: string
                      begin_time_mpt: string
                      operation_start_time_utc: string
                      operation_start_time_mpt: string
                      operation_end_time_utc: string
                      operation_end_time_mpt: string
        '400':
          description: Bad Request
        '500':
          description: Internal server error
        '503':
          description: Service unavailable
        '401':
          description: Unauthorized
        '405':
          description: Invalid method
        '403':
          description: Forbidden
        '404':
          description: Not Found
      parameters:
      - name: startDate
        in: query
        required: false
        description: 'Unit Commitment End Date From. Any date from 2024-07-01. Default to current time if left blank (format: yyyy-MM-dd).)'
        schema:
          $ref: '#/components/schemas/UnitCommitmentGetRequest'
      - name: endDate
        in: query
        required: false
        description: 'Unit Commitment End Date To. Any date from 2024-07-01 but after startDate. If left blank, return all the data from startDate. (format: yyyy-MM-dd).)'
        schema:
          $ref: '#/components/schemas/UnitCommitmentGetRequest-1'
      tags:
      - UnitCommitment
components:
  schemas:
    UnitCommitmentDataV2VO:
      type: object
      properties:
        asset_ID:
          type: string
          description: Pool asset ID
        issued_time_utc:
          type: string
          description: The time when the pool participant is issued the directive, in UTC.
        issued_time_mpt:
          type: string
          description: The time when the pool participant is issued the directive, in MPT.
        begin_time_utc:
          type: string
          description: The effective time of the directive when the pool participant is expected to begin responding to the directive, in UTC.
        begin_time_mpt:
          type: string
          description: The effective time of the directive when the pool participant is expected to begin responding to the directive, in MPT.
        operation_start_time_utc:
          type: string
          description: The time when the asset is instructed to synchronize to the interconnected electric system in response to the directive, in UTC.
        operation_start_time_mpt:
          type: string
          description: The time when the asset is instructed to synchronize to the interconnected electric system in response to the directive, in MPT.
        operation_end_time_utc:
          type: string
          description: The time when the asset is no longer required to operate in response to the directive, in UTC.
        operation_end_time_mpt:
          type: string
          description: The time when the asset is no longer required to operate in response to the directive, in MPT.
    UnitCommitmentDataV2Report:
      type: object
      properties:
        unit_commitment:
          type: array
          items:
            $ref: '#/components/schemas/UnitCommitmentDataV2VO'
    UnitCommitmentGetRequest:
      pattern: ^\d{4}\-(0[1-9]|1[012])\-(0[1-9]|[12][0-9]|3[01])$
      type: string
      x-apim-inline: true
    UnitCommitmentGetRequest-1:
      pattern: ^\d{4}\-(0[1-9]|1[012])\-(0[1-9]|[12][0-9]|3[01])$
      type: string
      x-apim-inline: true
  securitySchemes:
    apiKeyHeader:
      type: apiKey
      name: API-KEY
      in: header
    apiKeyQuery:
      type: apiKey
      name: subscription-key
      in: query
x-provenance:
  harvestedBy: API Evangelist
  harvestedOn: '2026-07-27'
  sourcePortal: https://developer-apim.aeso.ca/
  method: Assembled verbatim from the AESO Azure API Management developer-portal data API, which is served anonymously. AESO's own OpenAPI export (?export=true&format=openapi) returns a valid document with an EMPTY paths object, so paths, parameters, responses, examples and component schemas were read from the portal's operations/ and schemas/ endpoints and reassembled without alteration. Nothing was invented.
  sources:
  - url: https://developer-apim.aeso.ca/developer/apis/unitcommitmentdata-api-v2?api-version=2022-04-01-preview
    status: 200
    note: API metadata
  - url: https://developer-apim.aeso.ca/developer/apis/unitcommitmentdata-api-v2?export=true&format=openapi%2Bjson&api-version=2022-04-01-preview
    status: 200
    note: AESO OpenAPI export (empty paths) - basis for info/servers/security
  - url: https://developer-apim.aeso.ca/developer/apis/unitcommitmentdata-api-v2/operations?api-version=2022-04-01-preview
    status: 200
    note: operation list
  - url: https://developer-apim.aeso.ca/developer/apis/unitcommitmentdata-api-v2/schemas?api-version=2022-04-01-preview
    status: 200
    note: schema list
  - url: https://developer-apim.aeso.ca/developer/apis/unitcommitmentdata-api-v2/operations/getUnitCommitmentDataReportV11ForDateRange?api-version=2022-04-01-preview
    status: 200
    note: operation detail
  - url: https://developer-apim.aeso.ca/developer/apis/unitcommitmentdata-api-v2/schemas/67ffcd503d594b079c1250cb?api-version=2022-04-01-preview
    status: 200
    note: schema document