AESO

AESO Csd API

The Csd API from AESO — 2 operation(s) for csd.

Documentation GitHub OpenAPI

Operations 2

GET /csd/generation/assets/current Fetch the latest generation data for all AIES assets greater than 5 MW. #

GET /csd/summary/current Fetch the AIES's latest supply & demand summary data. #

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OpenAPI Specification

openapi: 3.2.0
info:
  title: Aeso Csd API
  version: '1.0'
  description: 'Operations tagged Csd across 2 of this provider''s published API definitions: aeso-currentsupplydemand-api-v1-openapi.json, aeso-currentsupplydemand-api-v2-openapi.json. Each path carries the servers of the definition it was published in.'
servers:
- url: https://apimgw.aeso.ca/public/currentsupplydemand-api
- url: https://gateway-apim.aeso.ca/public/currentsupplydemand-api
security:
- {}
- apiKeyHeader: []
- apiKeyQuery: []
tags:
- name: Csd
paths:
  /csd/generation/assets/current:
    servers:
    - url: https://apimgw.aeso.ca/public/currentsupplydemand-api
    - url: https://gateway-apim.aeso.ca/public/currentsupplydemand-api
    get:
      operationId: getCSDReportByAsset
      summary: Fetch the latest generation data for all AIES assets greater than 5 MW.
      description: Users have option to pass upto 20, comma seperated, specific Asset ID(s) to fetch data for those specific asset(s). If the AssetID is incorrect or retired then no data is returned for that AssetID.
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CSDAssetGenerationReport'
              examples:
                default:
                  value:
                    last_updated_datetime_utc: 2022-03-18 10:20
                    last_updated_datetime_mpt: 2022-03-18 16:20
                    asset_list:
                    - asset: string
                      fuel_type: string
                      sub_fuel_type: string
                      maximum_capability: 0
                      net_generation: 0
                      dispatched_contingency_reserve: 0
        '400':
          description: Bad Request
        '401':
          description: Unauthorized
        '403':
          description: Forbidden
        '404':
          description: Not Found
        '405':
          description: Invalid method
        '500':
          description: Internal server error
        '503':
          description: Service unavailable
      parameters:
      - name: assetIds
        in: query
        required: false
        description: This parameter can contain up to 20 comma-separated Asset IDs.
        schema:
          $ref: '#/components/schemas/CsdGenerationAssetsCurrentGetRequest'
      tags:
      - Csd
  /csd/summary/current:
    servers:
    - url: https://apimgw.aeso.ca/public/currentsupplydemand-api
    - url: https://gateway-apim.aeso.ca/public/currentsupplydemand-api
    get:
      operationId: getCSDSummaryDataReportv2
      summary: 'Fetch the AIES''s latest supply & demand summary data.

        '
      description: 'Fetch the AIES''s latest supply & demand summary data with generation data aggregated by fuel type and flows on each interchange path..

        '
      responses:
        '401':
          description: Unauthorized
        '403':
          description: Forbidden
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CSDSummaryDataVOv2'
              examples:
                default:
                  value:
                    effective_datetime_utc: 2022-03-18 10:20
                    effective_datetime_mpt: 2022-03-18 16:20
                    total_max_generation_capability: 0
                    total_net_generation: 0
                    net_to_grid_generation: 0
                    net_actual_interchange: 0
                    alberta_internal_load: 0
                    contingency_reserve_required: 0
                    dispatched_contigency_reserve_total: 0
                    dispatched_contingency_reserve_gen: 0
                    dispatched_contingency_reserve_other: 0
                    ffr_armed_dispatch: 0
                    ffr_offered_volume: 0
                    long_lead_time_volume: 0
                    generation_data_list:
                    - fuel_type: string
                      aggregated_maximum_capability: 0
                      aggregated_net_generation: 0
                      aggregated_dispatched_contingency_reserve: 0
                    interchange_list:
                    - path: string
                      actual_flow: 0
        '500':
          description: Internal server error
        '400':
          description: Bad Request
        '405':
          description: Invalid method
        '503':
          description: Service unavailable
        '404':
          description: Not Found
      tags:
      - Csd
components:
  schemas:
    CsdGenerationAssetsCurrentGetRequest:
      type: string
      x-apim-inline: true
    CSDGenerationFuelTypeVO:
      type: object
      properties:
        fuel_type:
          type: string
          description: Fuel Type of the asset.
        aggregated_maximum_capability:
          type: integer
          description: 'Maximum capabilities (in MW) of all the generating assets, aggregated by fuel type.

            Note that the Maximum Capability (MC) of coal assets is net of auxiliary load.'
          format: int32
        aggregated_net_generation:
          type: integer
          description: Net Generation (Gross Generation minus Asset service) in MW of all the generating assets, aggregated by fuel type.
          format: int32
        aggregated_dispatched_contingency_reserve:
          type: integer
          description: Dispatched (and Accepted) Contingency Reserve (in MW) of all the generating assets, aggregated by fuel type.
          format: int32
    CSDAssetGenerationTypeVO:
      type: object
      properties:
        asset:
          type: string
          description: Asset's unique short name defined by 3 or 4-digit alphanumeric code. A pool asset is registered to a pool participant..
        fuel_type:
          type: string
          description: Fuel Type of the asset.
        sub_fuel_type:
          type: string
          description: Sub-fuel Type of asset. Only applicable for assets with fuel type = Gas. The field will be empty for other assets.
        maximum_capability:
          type: integer
          description: 'Maximum quantity (in MW) that the generating asset is physically capable of providing under optimal operating conditions for the asset while complying with all applicable ISO rules and terms and conditions of the ISO tariff.

            Note that the Maximum Capability (MC) of coal assets is net of auxiliary load.'
          format: int32
        net_generation:
          type: integer
          description: Net Generation (Gross Generation minus Asset service) in MW pertaining to the asset.
          format: int32
        dispatched_contingency_reserve:
          type: integer
          description: Dispatched (and Accepted) Contingency Reserve (in MW) pertaining to the asset.
          format: int32
    CSDInterchangeVO:
      type: object
      properties:
        path:
          type: string
          description: AIES's interchange path name.
        actual_flow:
          type: integer
          description: Flow on AIES's interchange path (in MW).
          format: int32
    CSDSummaryDataVOv2:
      type: object
      properties:
        effective_datetime_utc:
          type: string
          description: The timestamp of when the data was last updated in UTC
          example: 2022-03-18 10:20
        effective_datetime_mpt:
          type: string
          description: The timestamp of when the data was last updated in MPT
          example: 2022-03-18 16:20
        total_max_generation_capability:
          type: integer
          format: int32
        total_net_generation:
          type: integer
          description: Total Net Generation (Gross Generation minus Asset service) in MW of all AIES assets that are greater than 5MWs.
          format: int32
        net_to_grid_generation:
          type: integer
          description: 'Net-To-Grid Generation (in MW). is calculated as per the definition "net generation the ISO determines is delivered to the grid" in Alberta Reliability Standard BAL-002-WECC-AB-2).

            Load used to calculate contingency reserves requirements, as per BAL-002-WECC-AB-2, is Net-To-Grid Generation minus Net Actual Interchange. Please see BAL-002-WECC-AB-2 for more information.'
          format: int32
        net_actual_interchange:
          type: integer
          description: Control area interchange between Alberta and British Columbia, Saskatchewan and Montana  (in MW) - Defined as Import (-) or Export (+).)
          format: int32
        alberta_internal_load:
          type: integer
          description: Calculated total Alberta demand based on all telemetered Control Area Net Generation minus Net Actual Interchange (in MW).
          format: int32
        contingency_reserve_required:
          type: integer
          description: Based on the WSCC Reserve calculation Methodology. It is the amount of Contingency reserve that should be obtained on average during the hour (in MW).
          format: int32
        dispatched_contigency_reserve_total:
          type: integer
          description: Dispatched (and Accepted) Contingency Reserve (in MW).
          format: int32
        dispatched_contingency_reserve_gen:
          type: integer
          description: Total Dispatched (and Accepted) Contingency Reserve (in MW) of all AIES generation assets that are greater than 5MWs.
          format: int32
        dispatched_contingency_reserve_other:
          type: integer
          description: Total Dispatched Contingency Reserve (in MWs) obtained from Non- Generation assets (Interconnections, Load, etc).
          format: int32
        ffr_armed_dispatch:
          type: integer
          description: The total amount of real power (in MW), armed for FFR following a Dispatch.
          format: int32
        ffr_offered_volume:
          type: integer
          description: The total amount of real power offered by FFR Service Providers (in MW).
          format: int32
        long_lead_time_volume:
          type: integer
          description: Total amount of long lead time volume not available (in MW).
          format: int32
        generation_data_list:
          type: array
          items:
            $ref: '#/components/schemas/CSDGenerationFuelTypeVO'
        interchange_list:
          type: array
          items:
            $ref: '#/components/schemas/CSDInterchangeVO'
    CSDAssetGenerationReport:
      type: object
      properties:
        last_updated_datetime_utc:
          type: string
          description: The timestamp of when the data was last updated in UTC
          example: 2022-03-18 10:20
        last_updated_datetime_mpt:
          type: string
          description: The timestamp of when the data was last updated in MPT
          example: 2022-03-18 16:20
        asset_list:
          type: array
          items:
            $ref: '#/components/schemas/CSDAssetGenerationTypeVO'
  securitySchemes:
    apiKeyHeader:
      type: apiKey
      name: API-KEY
      in: header
    apiKeyQuery:
      type: apiKey
      name: subscription-key
      in: query
x-refined-from:
- aeso-currentsupplydemand-api-v1-openapi.json
- aeso-currentsupplydemand-api-v2-openapi.json
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/actualforecast-api-v1?api-version=2022-04-01-preview
    status: 200
    note: API metadata
  - url: https://developer-apim.aeso.ca/developer/apis/actualforecast-api-v1?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/actualforecast-api-v1/operations?api-version=2022-04-01-preview
    status: 200
    note: operation list
  - url: https://developer-apim.aeso.ca/developer/apis/actualforecast-api-v1/schemas?api-version=2022-04-01-preview
    status: 200
    note: schema list
  - url: https://developer-apim.aeso.ca/developer/apis/actualforecast-api-v1/operations/getActualForecastReport?api-version=2022-04-01-preview
    status: 200
    note: operation detail
  - url: https://developer-apim.aeso.ca/developer/apis/actualforecast-api-v1/schemas/675b1a4d3d594b1e2075ef3d?api-version=2022-04-01-preview
    status: 200
    note: schema document