AESO AIES Gen Capacity API

{
  "openapi": "3.0.1",
  "info": {
    "title": "AIES Gen Capacity API",
    "description": "AIES generation capacity and outages submitted to the AESO.",
    "version": "v1"
  },
  "servers": [
    {
      "url": "https://apimgw.aeso.ca/public/aiesgencapacity-api"
    },
    {
      "url": "https://gateway-apim.aeso.ca/public/aiesgencapacity-api"
    }
  ],
  "paths": {
    "/AIESGenCapacity": {
      "get": {
        "operationId": "getAIESControlReport",
        "summary": "Fetch AIES generation capacity and outages",
        "description": "Fetch AIES generation capacity and outages grouped by fuel and sub-fuel type for a date range. The data is available from 1-Jan-2011 to 24 months in future. Note that the API cannot fetch more than 31 days of data in a single request.",
        "responses": {
          "200": {
            "description": "OK",
            "content": {
              "application/json": {
                "schema": {
                  "$ref": "#/components/schemas/AIESReportVO"
                },
                "examples": {
                  "default": {
                    "value": {
                      "fuel_type": "string",
                      "sub_fuel_type": "string",
                      "Hours": [
                        {
                          "begin_datetime_utc": "string",
                          "begin_datetime_mpt": "string",
                          "outage_grouping": {
                            "MC": 0,
                            "MBO OUT": 0,
                            "OP OUT": 0,
                            "AC": 0
                          }
                        }
                      ]
                    }
                  }
                }
              }
            }
          },
          "400": {
            "description": "Bad Request"
          },
          "401": {
            "description": "Unauthorized"
          },
          "403": {
            "description": "Forbidden"
          },
          "404": {
            "description": "Not Found"
          },
          "405": {
            "description": "Invalid method"
          },
          "500": {
            "description": "Internal server error"
          },
          "503": {
            "description": "Service unavailable"
          }
        },
        "parameters": [
          {
            "name": "startDate",
            "in": "query",
            "required": true,
            "description": "Any date between 2011-01-01 and the end of the 24th month from current date in future. (format: yyyy-MM-dd)",
            "schema": {
              "$ref": "#/components/schemas/AIESGenCapacityGetRequest"
            }
          },
          {
            "name": "endDate",
            "in": "query",
            "required": false,
            "description": "Any date after startDate up to the 1st of the 25th month from current date in future. If left blank, only data for startDate will be returned. (format: yyyy-MM-dd)",
            "schema": {
              "$ref": "#/components/schemas/AIESGenCapacityGetRequest-1"
            }
          }
        ]
      }
    }
  },
  "components": {
    "securitySchemes": {
      "apiKeyHeader": {
        "type": "apiKey",
        "name": "API-KEY",
        "in": "header"
      },
      "apiKeyQuery": {
        "type": "apiKey",
        "name": "subscription-key",
        "in": "query"
      }
    },
    "schemas": {
      "AIESHourlyOutageVO": {
        "type": "object",
        "properties": {
          "begin_datetime_utc": {
            "type": "string",
            "description": "The begin timestamp of the settlement hour, in UTC.",
            "format": "date-time"
          },
          "begin_datetime_mpt": {
            "type": "string",
            "description": "The begin timestamp of the settlement hour, in MPT (Mountain Prevailing Time).",
            "format": "date-time"
          },
          "outage_grouping": {
            "$ref": "#/components/schemas/AIESOutageGroupingVO"
          }
        }
      },
      "AIESOutageGroupingVO": {
        "type": "object",
        "properties": {
          "MC": {
            "type": "integer",
            "description": "Sum of Maximum Capability volume of all the assets in the fuel/ sub-fuel type for the hour (in MW).",
            "format": "int32"
          },
          "MBO OUT": {
            "type": "integer",
            "description": "Sum of Mothball (MBO) outage volume of all the assets in the fuel/ sub-fuel type for the hour (in MW).",
            "format": "int32"
          },
          "OP OUT": {
            "type": "integer",
            "description": "Sum of Operational (OP) outage volume of all the assets in the fuel/ sub-fuel type for the hour (in MW).",
            "format": "int32"
          },
          "AC": {
            "type": "integer",
            "description": "Sum of Available Capability volume of all the assets in the fuel/ sub-fuel type for the hour (in MW) i.e. MC - (MBO OUT + OP OUT).",
            "format": "int32"
          }
        }
      },
      "AIESReportVO": {
        "type": "object",
        "properties": {
          "fuel_type": {
            "type": "string",
            "description": "Name of the fuel type grouping for the assets."
          },
          "sub_fuel_type": {
            "type": "string",
            "description": "Name of the sub-fuel type grouping for the assets."
          },
          "Hours": {
            "type": "array",
            "items": {
              "$ref": "#/components/schemas/AIESHourlyOutageVO"
            }
          }
        }
      },
      "AIESGenCapacityGetRequest": {
        "pattern": "^\\d{4}\\-(0[1-9]|1[012])\\-(0[1-9]|[12][0-9]|3[01])$",
        "type": "string",
        "x-apim-inline": true
      },
      "AIESGenCapacityGetRequest-1": {
        "pattern": "^\\d{4}\\-(0[1-9]|1[012])\\-(0[1-9]|[12][0-9]|3[01])$",
        "type": "string",
        "x-apim-inline": true
      }
    }
  },
  "security": [
    {},
    {
      "apiKeyHeader": []
    },
    {
      "apiKeyQuery": []
    }
  ],
  "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/aiesgencapacity-api-v1?api-version=2022-04-01-preview",
        "status": 200,
        "note": "API metadata"
      },
      {
        "url": "https://developer-apim.aeso.ca/developer/apis/aiesgencapacity-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/aiesgencapacity-api-v1/operations?api-version=2022-04-01-preview",
        "status": 200,
        "note": "operation list"
      },
      {
        "url": "https://developer-apim.aeso.ca/developer/apis/aiesgencapacity-api-v1/schemas?api-version=2022-04-01-preview",
        "status": 200,
        "note": "schema list"
      },
      {
        "url": "https://developer-apim.aeso.ca/developer/apis/aiesgencapacity-api-v1/operations/getAIESControlReport?api-version=2022-04-01-preview",
        "status": 200,
        "note": "operation detail"
      },
      {
        "url": "https://developer-apim.aeso.ca/developer/apis/aiesgencapacity-api-v1/schemas/6644ebbe463461116c1d1346?api-version=2022-04-01-preview",
        "status": 200,
        "note": "schema document"
      }
    ]
  }
}