Elexon

Elexon Surplus Forecast API

Generating Plant Operating Surplus forecast data, including historical views of data by publish time or forecast date.

GitHub OpenAPI

Documentation

📖
Documentation
https://developer.data.elexon.co.uk/
📖
Documentation
https://bmrs.elexon.co.uk/api-documentation/guidance

Specifications

⚙
OpenAPI
https://raw.githubusercontent.com/api-evangelist/elexon/refs/heads/main/openapi/elexon-surplus-forecast-api-openapi.yml

Other Resources

🔗
GitHub
https://github.com/elexon-data/insights-docs

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OpenAPI Specification

elexon-surplus-forecast-api-openapi.yml Raw ↑ 
openapi: 3.0.4
info:
  title: Insights.Api Balancing Mechanism Dynamic Surplus Forecast API
  version: '1.0'
  description: Dynamic data.
servers:
- url: https://data.elexon.co.uk/bmrs/api/v1
tags:
- name: Surplus Forecast
  description: Generating Plant Operating Surplus forecast data, including historical views of data by publish time or forecast date.
paths:
  /forecast/surplus/daily:
    get:
      tags:
      - Surplus Forecast
      summary: Daily surplus forecast (OCNMFD)
      description: 'This endpoint provides the Generating Plant Operating Surplus covering 2 days ahead to 14 days ahead in MW values.

        The Daily API outputs the latest published data for daily surplus forecast for D+2 t D+14'
      parameters:
      - name: format
        in: query
        description: Response data format. Use json/xml to include metadata.
        schema:
          enum:
          - json
          - xml
          - csv
          type: string
      responses:
        '200':
          description: OK
          content:
            text/plain:
              schema:
                $ref: '#/components/schemas/Insights.Api.Models.Responses.ResponseWithMetadata-1_Insights.Api.Models.Responses.ForecastSurplus.ForecastSurplusDaily'
            application/json:
              schema:
                $ref: '#/components/schemas/Insights.Api.Models.Responses.ResponseWithMetadata-1_Insights.Api.Models.Responses.ForecastSurplus.ForecastSurplusDaily'
            text/json:
              schema:
                $ref: '#/components/schemas/Insights.Api.Models.Responses.ResponseWithMetadata-1_Insights.Api.Models.Responses.ForecastSurplus.ForecastSurplusDaily'
            application/xml:
              schema:
                $ref: '#/components/schemas/Insights.Api.Models.Responses.ResponseWithMetadata-1_Insights.Api.Models.Responses.ForecastSurplus.ForecastSurplusDaily'
            text/xml:
              schema:
                $ref: '#/components/schemas/Insights.Api.Models.Responses.ResponseWithMetadata-1_Insights.Api.Models.Responses.ForecastSurplus.ForecastSurplusDaily'
            text/csv:
              schema:
                $ref: '#/components/schemas/Insights.Api.Models.Responses.ResponseWithMetadata-1_Insights.Api.Models.Responses.ForecastSurplus.ForecastSurplusDaily'
  /forecast/surplus/daily/history:
    get:
      tags:
      - Surplus Forecast
      summary: Historical daily surplus forecast (OCNMFD)
      description: 'This endpoint provides the historic Generating Plant Operating Surplus covering 2 days ahead to 14 days ahead in MW values.

        The historic API outputs the latest published data for historic daily surplus forecast for D+2 to D+14'
      parameters:
      - name: publishTime
        in: query
        required: true
        schema:
          type: string
          format: date-time
      - name: format
        in: query
        description: Response data format. Use json/xml to include metadata.
        schema:
          enum:
          - json
          - xml
          - csv
          type: string
      responses:
        '200':
          description: OK
          content:
            text/plain:
              schema:
                $ref: '#/components/schemas/Insights.Api.Models.Responses.ResponseWithMetadata-1_Insights.Api.Models.Responses.ForecastSurplus.ForecastSurplusDaily'
            application/json:
              schema:
                $ref: '#/components/schemas/Insights.Api.Models.Responses.ResponseWithMetadata-1_Insights.Api.Models.Responses.ForecastSurplus.ForecastSurplusDaily'
            text/json:
              schema:
                $ref: '#/components/schemas/Insights.Api.Models.Responses.ResponseWithMetadata-1_Insights.Api.Models.Responses.ForecastSurplus.ForecastSurplusDaily'
            application/xml:
              schema:
                $ref: '#/components/schemas/Insights.Api.Models.Responses.ResponseWithMetadata-1_Insights.Api.Models.Responses.ForecastSurplus.ForecastSurplusDaily'
            text/xml:
              schema:
                $ref: '#/components/schemas/Insights.Api.Models.Responses.ResponseWithMetadata-1_Insights.Api.Models.Responses.ForecastSurplus.ForecastSurplusDaily'
            text/csv:
              schema:
                $ref: '#/components/schemas/Insights.Api.Models.Responses.ResponseWithMetadata-1_Insights.Api.Models.Responses.ForecastSurplus.ForecastSurplusDaily'
  /forecast/surplus/daily/evolution:
    get:
      tags:
      - Surplus Forecast
      summary: Evolution daily surplus forecast (OCNMFD)
      description: "This endpoint provides the daily evolution Generating Plant Operating Surplus covering 2 days ahead to 14 days ahead in MW values.\nThe Daily API outputs the latest published data for daily surplus forecast for D+2 to D+14.\n            \nDate parameter must be provided in the exact format yyyy-MM-dd."
      parameters:
      - name: forecastDate
        in: query
        description: The forecast date for the filter. This must be in the format yyyy-MM-dd.
        required: true
        schema:
          type: string
          format: date
          example: '2022-09-20'
        example: '2022-09-20'
      - name: format
        in: query
        description: Response data format. Use json/xml to include metadata.
        schema:
          enum:
          - json
          - xml
          - csv
          type: string
      responses:
        '200':
          description: OK
          content:
            text/plain:
              schema:
                $ref: '#/components/schemas/Insights.Api.Models.Responses.ResponseWithMetadata-1_Insights.Api.Models.Responses.ForecastSurplus.ForecastSurplusDaily'
            application/json:
              schema:
                $ref: '#/components/schemas/Insights.Api.Models.Responses.ResponseWithMetadata-1_Insights.Api.Models.Responses.ForecastSurplus.ForecastSurplusDaily'
            text/json:
              schema:
                $ref: '#/components/schemas/Insights.Api.Models.Responses.ResponseWithMetadata-1_Insights.Api.Models.Responses.ForecastSurplus.ForecastSurplusDaily'
            application/xml:
              schema:
                $ref: '#/components/schemas/Insights.Api.Models.Responses.ResponseWithMetadata-1_Insights.Api.Models.Responses.ForecastSurplus.ForecastSurplusDaily'
            text/xml:
              schema:
                $ref: '#/components/schemas/Insights.Api.Models.Responses.ResponseWithMetadata-1_Insights.Api.Models.Responses.ForecastSurplus.ForecastSurplusDaily'
            text/csv:
              schema:
                $ref: '#/components/schemas/Insights.Api.Models.Responses.ResponseWithMetadata-1_Insights.Api.Models.Responses.ForecastSurplus.ForecastSurplusDaily'
  /forecast/surplus/weekly:
    get:
      tags:
      - Surplus Forecast
      summary: Weekly surplus forecast (OCNMFW, OCNMF3Y)
      description: 'This endpoint provides the Generating Plant Operating Surplus covering 2 weeks ahead to 156 weeks ahead in MW values.

        The weekly API outputs the latest published data for weekly surplus forecast for W+2 to W+156'
      parameters:
      - name: range
        in: query
        schema:
          enum:
          - 52W
          - 156W
          type: string
      - name: format
        in: query
        description: Response data format. Use json/xml to include metadata.
        schema:
          enum:
          - json
          - xml
          - csv
          type: string
      responses:
        '200':
          description: OK
          content:
            text/plain:
              schema:
                $ref: '#/components/schemas/Insights.Api.Models.Responses.ResponseWithMetadata-1_Insights.Api.Models.Responses.ForecastSurplus.ForecastSurplusWeekly'
            application/json:
              schema:
                $ref: '#/components/schemas/Insights.Api.Models.Responses.ResponseWithMetadata-1_Insights.Api.Models.Responses.ForecastSurplus.ForecastSurplusWeekly'
            text/json:
              schema:
                $ref: '#/components/schemas/Insights.Api.Models.Responses.ResponseWithMetadata-1_Insights.Api.Models.Responses.ForecastSurplus.ForecastSurplusWeekly'
            application/xml:
              schema:
                $ref: '#/components/schemas/Insights.Api.Models.Responses.ResponseWithMetadata-1_Insights.Api.Models.Responses.ForecastSurplus.ForecastSurplusWeekly'
            text/xml:
              schema:
                $ref: '#/components/schemas/Insights.Api.Models.Responses.ResponseWithMetadata-1_Insights.Api.Models.Responses.ForecastSurplus.ForecastSurplusWeekly'
            text/csv:
              schema:
                $ref: '#/components/schemas/Insights.Api.Models.Responses.ResponseWithMetadata-1_Insights.Api.Models.Responses.ForecastSurplus.ForecastSurplusWeekly'
  /forecast/surplus/weekly/history:
    get:
      tags:
      - Surplus Forecast
      summary: Historical weekly surplus forecast (OCNMFW, OCNMF3Y)
      description: 'This endpoint provides the historic Generating Plant Operating Surplus covering 2 weeks ahead to 156 weeks ahead in MW values.

        The weekly API outputs the latest published data for weekly surplus forecast for W+2 to W+156.

        Historical published data of weekly surplus forecasts for a given publish date in the 2-156 week dataset.'
      parameters:
      - name: publishTime
        in: query
        required: true
        schema:
          type: string
          format: date-time
      - name: range
        in: query
        schema:
          enum:
          - 52W
          - 156W
          type: string
      - name: format
        in: query
        description: Response data format. Use json/xml to include metadata.
        schema:
          enum:
          - json
          - xml
          - csv
          type: string
      responses:
        '200':
          description: OK
          content:
            text/plain:
              schema:
                $ref: '#/components/schemas/Insights.Api.Models.Responses.ResponseWithMetadata-1_Insights.Api.Models.Responses.ForecastSurplus.ForecastSurplusWeekly'
            application/json:
              schema:
                $ref: '#/components/schemas/Insights.Api.Models.Responses.ResponseWithMetadata-1_Insights.Api.Models.Responses.ForecastSurplus.ForecastSurplusWeekly'
            text/json:
              schema:
                $ref: '#/components/schemas/Insights.Api.Models.Responses.ResponseWithMetadata-1_Insights.Api.Models.Responses.ForecastSurplus.ForecastSurplusWeekly'
            application/xml:
              schema:
                $ref: '#/components/schemas/Insights.Api.Models.Responses.ResponseWithMetadata-1_Insights.Api.Models.Responses.ForecastSurplus.ForecastSurplusWeekly'
            text/xml:
              schema:
                $ref: '#/components/schemas/Insights.Api.Models.Responses.ResponseWithMetadata-1_Insights.Api.Models.Responses.ForecastSurplus.ForecastSurplusWeekly'
            text/csv:
              schema:
                $ref: '#/components/schemas/Insights.Api.Models.Responses.ResponseWithMetadata-1_Insights.Api.Models.Responses.ForecastSurplus.ForecastSurplusWeekly'
  /forecast/surplus/weekly/evolution:
    get:
      tags:
      - Surplus Forecast
      summary: Evolution weekly surplus forecast (OCNMFW, OCNMF3Y)
      description: 'This endpoint provides the evolution Generating Plant Operating Surplus  covering 2 weeks ahead to 156 weeks ahead in MW values.

        The weekly API outputs the latest published data for weekly surplus forecast for W+2 to W+156'
      parameters:
      - name: year
        in: query
        required: true
        schema:
          type: integer
          format: int32
      - name: week
        in: query
        required: true
        schema:
          type: integer
          format: int32
      - name: range
        in: query
        schema:
          enum:
          - 52W
          - 156W
          type: string
      - name: format
        in: query
        description: Response data format. Use json/xml to include metadata.
        schema:
          enum:
          - json
          - xml
          - csv
          type: string
      responses:
        '200':
          description: OK
          content:
            text/plain:
              schema:
                $ref: '#/components/schemas/Insights.Api.Models.Responses.ResponseWithMetadata-1_Insights.Api.Models.Responses.ForecastSurplus.ForecastSurplusWeekly'
            application/json:
              schema:
                $ref: '#/components/schemas/Insights.Api.Models.Responses.ResponseWithMetadata-1_Insights.Api.Models.Responses.ForecastSurplus.ForecastSurplusWeekly'
            text/json:
              schema:
                $ref: '#/components/schemas/Insights.Api.Models.Responses.ResponseWithMetadata-1_Insights.Api.Models.Responses.ForecastSurplus.ForecastSurplusWeekly'
            application/xml:
              schema:
                $ref: '#/components/schemas/Insights.Api.Models.Responses.ResponseWithMetadata-1_Insights.Api.Models.Responses.ForecastSurplus.ForecastSurplusWeekly'
            text/xml:
              schema:
                $ref: '#/components/schemas/Insights.Api.Models.Responses.ResponseWithMetadata-1_Insights.Api.Models.Responses.ForecastSurplus.ForecastSurplusWeekly'
            text/csv:
              schema:
                $ref: '#/components/schemas/Insights.Api.Models.Responses.ResponseWithMetadata-1_Insights.Api.Models.Responses.ForecastSurplus.ForecastSurplusWeekly'
components:
  schemas:
    Insights.Api.Models.Responses.ResponseWithMetadata-1_Insights.Api.Models.Responses.ForecastSurplus.ForecastSurplusDaily:
      type: object
      properties:
        data:
          type: array
          items:
            $ref: '#/components/schemas/Insights.Api.Models.Responses.ForecastSurplus.ForecastSurplusDaily'
          nullable: true
        metadata:
          $ref: '#/components/schemas/Insights.Api.Models.Metadata.ApiResponseSourceMetadata'
      additionalProperties: false
    Insights.Api.Models.Responses.ResponseWithMetadata-1_Insights.Api.Models.Responses.ForecastSurplus.ForecastSurplusWeekly:
      type: object
      properties:
        data:
          type: array
          items:
            $ref: '#/components/schemas/Insights.Api.Models.Responses.ForecastSurplus.ForecastSurplusWeekly'
          nullable: true
        metadata:
          $ref: '#/components/schemas/Insights.Api.Models.Metadata.ApiResponseSourceMetadata'
      additionalProperties: false
    Insights.Api.Models.Metadata.ApiResponseSourceMetadata:
      type: object
      properties:
        datasets:
          type: array
          items:
            type: string
          nullable: true
          example:
          - DATASET
      additionalProperties: false
    Insights.Api.Models.Responses.ForecastSurplus.ForecastSurplusDaily:
      type: object
      properties:
        publishTime:
          type: string
          format: date-time
        surplus:
          type: integer
          format: int64
          nullable: true
        forecastDate:
          type: string
          format: date
      additionalProperties: false
    Insights.Api.Models.Responses.ForecastSurplus.ForecastSurplusWeekly:
      type: object
      properties:
        publishTime:
          type: string
          format: date-time
        surplus:
          type: integer
          format: int64
          nullable: true
        week:
          type: integer
          format: int32
        year:
          type: integer
          format: int32
        weekStartDate:
          type: string
          format: date
      additionalProperties: false