Forecast.Solar

Forecast.Solar Public API

Public functions

GitHub OpenAPI

Operations 5

GET /check/{lat}/{lon} Get check by lat by lon #
GET /estimate/{lat}/{lon}/{dec}/{az}/{kwp} Get estimate by lat by lon by dec by az by kwp #
GET /estimate/watts/{lat}/{lon}/{dec}/{az}/{kwp} Get estimate watts by lat by lon by dec by az by kwp #
GET /estimate/watthours/{lat}/{lon}/{dec}/{az}/{kwp} Get estimate watthours by lat by lon by dec by az by kwp #
GET /estimate/watthours/day/{lat}/{lon}/{dec}/{az}/{kwp} Get estimate watthours day by lat by lon by dec by az by kwp #

Specifications

⚙
OpenAPI
https://artifacts.apis.io/forecast-solar/openapi/forecast-solar-public-api-openapi.yml

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OpenAPI Specification

forecast-solar-public-api-openapi.yml Raw ↑ 
openapi: 3.2.0
info:
  title: Forecast.Solar Public API
  version: v7.41.0.2515 (Fri, 04 Sep 2026 14:20:34 +0200)
  description: '## Restful API for Solar production forecast data and Weather forecast data.

    ### Retrieve data based on a location, the declination and orientation of solar panels.


    #### Homepage • Documentation


    made by Knut Kohl . Consulting'
tags:
- name: Public
  description: Public functions
paths:
  /check/{lat}/{lon}:
    get:
      tags:
      - Public
      description: Check location
      parameters:
      - $ref: '#/components/parameters/Latitude'
      - $ref: '#/components/parameters/Longitude'
      responses:
        '200':
          description: OK
        '400':
          description: Bad Request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ResponseFailure'
            text/csv:
              schema:
                $ref: '#/components/schemas/ResponseFailure'
            application/xml:
              schema:
                $ref: '#/components/schemas/ResponseFailure'
        '404':
          description: Not Found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ResponseFailure'
            text/csv:
              schema:
                $ref: '#/components/schemas/ResponseFailure'
            application/xml:
              schema:
                $ref: '#/components/schemas/ResponseFailure'
      summary: Get check by lat by lon
      x-summary-source: derived
      operationId: getCheckByLatByLon
      x-operation-id-source: derived
  /estimate/{lat}/{lon}/{dec}/{az}/{kwp}:
    get:
      tags:
      - Public
      description: Get estimated watts, watt hours and watt hours per day
      parameters:
      - $ref: '#/components/parameters/Latitude'
      - $ref: '#/components/parameters/Longitude'
      - $ref: '#/components/parameters/Declination'
      - $ref: '#/components/parameters/Azimuth'
      - $ref: '#/components/parameters/PowerInstalled'
      - $ref: '#/components/parameters/TimeFormat'
      - $ref: '#/components/parameters/CSVDelimiter'
      - $ref: '#/components/parameters/CSVSeparator'
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ResponseFull'
            text/csv:
              schema:
                $ref: '#/components/schemas/ResponseFull'
            application/xml:
              schema:
                $ref: '#/components/schemas/ResponseFull'
            text/plain:
              schema:
                $ref: '#/components/schemas/ResponseFull'
        '400':
          description: Bad Request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ResponseFailure'
            text/csv:
              schema:
                $ref: '#/components/schemas/ResponseFailure'
            application/xml:
              schema:
                $ref: '#/components/schemas/ResponseFailure'
            text/plain:
              schema:
                $ref: '#/components/schemas/ResponseFailure'
        '404':
          description: Not Found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ResponseFailure'
            text/csv:
              schema:
                $ref: '#/components/schemas/ResponseFailure'
            application/xml:
              schema:
                $ref: '#/components/schemas/ResponseFailure'
            text/plain:
              schema:
                $ref: '#/components/schemas/ResponseFailure'
      summary: Get estimate by lat by lon by dec by az by kwp
      x-summary-source: derived
      operationId: getEstimateByLatByLonByDecByAzByKwp
      x-operation-id-source: derived
  /estimate/watts/{lat}/{lon}/{dec}/{az}/{kwp}:
    get:
      tags:
      - Public
      description: Get estimated watts per day
      parameters:
      - $ref: '#/components/parameters/Latitude'
      - $ref: '#/components/parameters/Longitude'
      - $ref: '#/components/parameters/Declination'
      - $ref: '#/components/parameters/Azimuth'
      - $ref: '#/components/parameters/PowerInstalled'
      - $ref: '#/components/parameters/TimeFormat'
      - $ref: '#/components/parameters/CSVDelimiter'
      - $ref: '#/components/parameters/CSVSeparator'
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ResponseWatts'
            text/csv:
              schema:
                $ref: '#/components/schemas/ResponseWatts'
            application/xml:
              schema:
                $ref: '#/components/schemas/ResponseWatts'
            text/plain:
              schema:
                $ref: '#/components/schemas/ResponseWatts'
        '400':
          description: Bad Request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ResponseFailure'
            text/csv:
              schema:
                $ref: '#/components/schemas/ResponseFailure'
            application/xml:
              schema:
                $ref: '#/components/schemas/ResponseFailure'
            text/plain:
              schema:
                $ref: '#/components/schemas/ResponseFailure'
        '404':
          description: Not Found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ResponseFailure'
            text/csv:
              schema:
                $ref: '#/components/schemas/ResponseFailure'
            application/xml:
              schema:
                $ref: '#/components/schemas/ResponseFailure'
            text/plain:
              schema:
                $ref: '#/components/schemas/ResponseFailure'
      summary: Get estimate watts by lat by lon by dec by az by kwp
      x-summary-source: derived
      operationId: getEstimateWattsByLatByLonByDecByAzByKwp
      x-operation-id-source: derived
  /estimate/watthours/{lat}/{lon}/{dec}/{az}/{kwp}:
    get:
      tags:
      - Public
      description: Get estimated watt hours data
      parameters:
      - $ref: '#/components/parameters/Latitude'
      - $ref: '#/components/parameters/Longitude'
      - $ref: '#/components/parameters/Declination'
      - $ref: '#/components/parameters/Azimuth'
      - $ref: '#/components/parameters/PowerInstalled'
      - $ref: '#/components/parameters/TimeFormat'
      - $ref: '#/components/parameters/CSVDelimiter'
      - $ref: '#/components/parameters/CSVSeparator'
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ResponseWattHours'
            text/csv:
              schema:
                $ref: '#/components/schemas/ResponseWattHours'
            application/xml:
              schema:
                $ref: '#/components/schemas/ResponseWattHours'
            text/plain:
              schema:
                $ref: '#/components/schemas/ResponseWattHours'
        '400':
          description: Bad Request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ResponseFailure'
            text/csv:
              schema:
                $ref: '#/components/schemas/ResponseFailure'
            application/xml:
              schema:
                $ref: '#/components/schemas/ResponseFailure'
            text/plain:
              schema:
                $ref: '#/components/schemas/ResponseFailure'
        '404':
          description: Not Found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ResponseFailure'
            text/csv:
              schema:
                $ref: '#/components/schemas/ResponseFailure'
            application/xml:
              schema:
                $ref: '#/components/schemas/ResponseFailure'
            text/plain:
              schema:
                $ref: '#/components/schemas/ResponseFailure'
      summary: Get estimate watthours by lat by lon by dec by az by kwp
      x-summary-source: derived
      operationId: getEstimateWatthoursByLatByLonByDecByAzByKwp
      x-operation-id-source: derived
  /estimate/watthours/day/{lat}/{lon}/{dec}/{az}/{kwp}:
    get:
      tags:
      - Public
      description: Get estimated watt hours sum per day
      parameters:
      - $ref: '#/components/parameters/Latitude'
      - $ref: '#/components/parameters/Longitude'
      - $ref: '#/components/parameters/Declination'
      - $ref: '#/components/parameters/Azimuth'
      - $ref: '#/components/parameters/PowerInstalled'
      - $ref: '#/components/parameters/TimeFormat'
      - $ref: '#/components/parameters/CSVDelimiter'
      - $ref: '#/components/parameters/CSVSeparator'
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ResponseWattHoursDay'
            text/csv:
              schema:
                $ref: '#/components/schemas/ResponseWattHoursDay'
            application/xml:
              schema:
                $ref: '#/components/schemas/ResponseWattHoursDay'
            text/plain:
              schema:
                $ref: '#/components/schemas/ResponseWattHoursDay'
        '400':
          description: Bad Request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ResponseFailure'
            text/csv:
              schema:
                $ref: '#/components/schemas/ResponseFailure'
            application/xml:
              schema:
                $ref: '#/components/schemas/ResponseFailure'
            text/plain:
              schema:
                $ref: '#/components/schemas/ResponseFailure'
        '404':
          description: Not Found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ResponseFailure'
            text/csv:
              schema:
                $ref: '#/components/schemas/ResponseFailure'
            application/xml:
              schema:
                $ref: '#/components/schemas/ResponseFailure'
            text/plain:
              schema:
                $ref: '#/components/schemas/ResponseFailure'
      summary: Get estimate watthours day by lat by lon by dec by az by kwp
      x-summary-source: derived
      operationId: getEstimateWatthoursDayByLatByLonByDecByAzByKwp
      x-operation-id-source: derived
components:
  schemas:
    DatasetWatts:
      description: 'Tupel of "date-time": watts'
      type: object
      example:
        2000-01-01 08:00: 1234.567
        2000-01-01 09:00: 2345.678
    EstimateWatts:
      description: Estimated watts power per time period
      type: array
      items:
        $ref: '#/components/schemas/DatasetWatts'
    EstimateWattHours:
      description: Estimated watt hours sum over day
      type: array
      items:
        $ref: '#/components/schemas/DatasetWattHours'
    MessageOk:
      type: object
      properties:
        code:
          type: integer
          example: 0
        type:
          type: string
          example: success
        text:
          type: string
          example: ''
    EstimateWattHoursDay:
      description: Estimated watt hours per day
      type: array
      items:
        $ref: '#/components/schemas/DatasetWattHoursDay'
    DatasetWattHours:
      description: 'Tupel of "date-time": kilo watt hours'
      type: object
      example:
        2000-01-01 08:00: 12.345
        2000-01-01 09:00: 35.801
    ResponseWatts:
      description: Power forecast
      properties:
        result:
          $ref: '#/components/schemas/EstimateWatts'
        message:
          $ref: '#/components/schemas/MessageOk'
    DatasetWattHoursPeriod:
      description: 'Tupel of "date-time": kilo watt hours'
      type: object
      example:
        2000-01-01 08:00: 12.345
        2000-01-01 09:00: 23.456
    ResponseFull:
      description: Power forecast, production forecast and production forecast per day
      properties:
        result:
          $ref: '#/components/schemas/ResultFull'
        message:
          $ref: '#/components/schemas/MessageOk'
    ResponseFailure:
      description: Error response, see message object
      properties:
        result:
          example: null
        message:
          type: object
          properties:
            code:
              description: Error code
              type: integer
              example: 123
            type:
              type: string
              example: error
            text:
              description: Error message
              type: string
              example: Meaningful error message
    EstimateWattHoursPeriod:
      description: Estimated watt hours per time period
      type: array
      items:
        $ref: '#/components/schemas/DatasetWattHoursPeriod'
    ResultFull:
      description: Power forecast, production forecast and production forecast per day
      properties:
        watts:
          $ref: '#/components/schemas/EstimateWatts'
        watt_hours_period:
          $ref: '#/components/schemas/EstimateWattHoursPeriod'
        watt_hours:
          $ref: '#/components/schemas/EstimateWattHours'
        watt_hours_day:
          $ref: '#/components/schemas/EstimateWattHoursDay'
    DatasetWattHoursDay:
      description: 'Tupel of "date": kilo watt hours'
      type: object
      example:
        '2000-01-01': 123.5467
        '2000-01-02': 234.5678
    ResponseWattHoursDay:
      description: Production forecast per day
      properties:
        result:
          $ref: '#/components/schemas/EstimateWattHoursDay'
        message:
          $ref: '#/components/schemas/MessageOk'
    ResponseWattHours:
      description: Production forecast sum over day
      properties:
        result:
          $ref: '#/components/schemas/EstimateWattHours'
        message:
          $ref: '#/components/schemas/MessageOk'
  parameters:
    Declination:
      name: dec
      in: path
      description: Solar plane declination, 0 = horizontal, 90 = vertical
      required: true
      schema:
        type: number
        format: float
        maximum: 90
        minimum: 0
    CSVSeparator:
      name: X-Separator
      in: header
      description: Value separator in CSV response, default ';', for a tabulator use string 'TAB'
      required: false
      schema:
        type: string
        default: ;
    Azimuth:
      name: az
      in: path
      description: Solar plane azimuth, West = 90, South = 0, East = -90
      required: true
      schema:
        type: number
        format: float
        maximum: 180
        minimum: -180
    PowerInstalled:
      name: kwp
      in: path
      description: Solar plane max. peak power in kilo watt
      required: true
      schema:
        type: number
        format: float
        multipleOf: 0.001
        exclusiveMinimum: 0
    Latitude:
      name: lat
      in: path
      description: Latitude of location
      required: true
      schema:
        type: number
        format: float
        maximum: 90
        minimum: -90
    Longitude:
      name: lon
      in: path
      description: Longitude of location
      required: true
      schema:
        type: number
        format: float
        maximum: 180
        minimum: -180
    TimeFormat:
      name: time
      in: query
      description: Set to 'utc' to return timestamps in ISO 8601, e.g. 2004-02-12T15:19:21+00:00
      required: false
      schema:
        type: string
    CSVDelimiter:
      name: X-Delimiter
      in: header
      description: Dataset delimiter in CSV response, default '|'
      required: false
      schema:
        type: string
        default: '|'