Solar panels energy prediction

Solar Panel Energy Prediction

✔ This is the latest version of the API (v2).

Looking for the previous version? You can find the v1 documentation here.

Product concept

Solar Panel Energy Prediction service allows users to accurately estimate solar power generation and determine the energy output of each PV panel.

Main features of Solar Panel Energy Prediction:

API response contains daily solar panel power output data for each solar panel with 1 hour, 15 minutes and 1 day detalization
Each API response contains also essential solar irradiation data (DNI, GHI and DHI)
Current and 15 days ahead forecast data for solar panel power output
Historical solar panel power output data is available for 47+ years back (from 1st January 1979)
Create an unlimited number of solar panels for a particular location. Users could define solar panel by specifying its type, tilt and azimuth angles
Making API call to particular location get solar panel power output data for all solar panels associated with this location
Global coverage

You can find the previous documentation v1 here

Data is available in JSON format.

How to use the service

Sign up to OpenWeather service in case you haven't got your OpenWeather API key yet. Do not forget to add your key to the each API call in paragraphs 3, 4 and 5.
Follow the pricing page to learn details about the price. Please note that product is available via the separate subscription only, which allows you to pay only for the created locations.
Create a unique location via API call according "Step 1: Manage my location". Create a location where your solar panels are located in accordance with chapter "How to create a unique location" and receive location ID number. Please pay attention that chapters "How to get a location", "How to get a list of created locations" ,"How to delete a location" described how to manage created locations.
Create a solar panels for your location according "Step 2: Operations with solar panels". Create a solar panel for location created at the previous step according to the documentation "How to create a solar panel". Please note that you could create unlimited number of panels for one location.
Make an API call to get location solar panels power output and location solar irradiation data according step 3.

Please note that product is available via the separate subscription only, which allows you to pay only for the created locations.

Step 1: Manage my location

How to create a unique location

This HTTP method is used to create a new location and receive location ID for it. You need to pass a geographical coordinates of location in parameters. In case of successful creation method returns an HTTP code 201.

Method: POST

Header: Content-Type: application/json

URL

https://api.openweathermap.org/energy/2.0/locations?appid={API key}

Parameters
`appid`	required	Your unique API key (you can always find it on your account page under the "API key" tab)

Example of the request body

{
  "type": "point",
  "coordinates": [
    {
      "lat": 51.507222,
      "lon": -0.1275
    }
  ]
}

Parameters
`type`	required	Type of the location. Allowed type - point
`lat`	required	Latitude, decimal (−90; 90)
`lon`	required	Longitude, decimal (−180; 180)

Example of API response

{
 "location_id": "F01E165B-22F3-4591-89D4-F238E92F6885",
 "type": "point",
 "coordinates": [
   {
    "lat": 51.507222,
    "lon": -0.1275
   }
 ]
}

Fields in API response

location_id Unique identifier of the location assigned at resource creation
type Type of the location
lat Latitude of the location, decimal (−90; 90)
lon Longitude of the location, decimal (-180; 180)

Please note:

When creating unique locations, coordinates are rounded to 6 decimal places
To check geographical coordinates of previously created location, please see section "How to get location"

How to get a location data

You could get geographical coordinates for previously created location by its id number following instruction below. In case of success method returns an HTTP code 200.

Method: GET

URL

https://api.openweathermap.org/energy/2.0/location/{location_id}?appid={API key}

Parameters
`location_id`	required	Unique identifier of the location assigned at resource creation. You could find all created locations id using instruction here
`appid`	required	Your unique API key (you can always find it on your account page under the "API key" tab)

URL example

https://api.openweathermap.org/energy/2.0/location/F01E165B-22F3-4591-89D4-F238E92F6885?appid={API key}

Example of API response

{
  "location_id": "F01E165B-22F3-4591-89D4-F238E92F6885",
  "type": "point",
  "coordinates": [
     {
      "lat": 51.507222,
      "lon": -0.1275
     }
   ]
}

Fields in API response

location_id Unique identifier of the location assigned at resource creation
type Type of the location
lat Latitude of the location, decimal (−90; 90)
lon Longitude of the location, decimal (-180; 180)

How to get a list of created locations

You could get a list of all created locations using your OpenWeather API key and instruction below. In case of success method returns an HTTP code 200.

Method: GET

URL

https://api.openweathermap.org/energy/2.0/locations?appid={API key}

Parameters
`appid`	required	Your unique API key (you can always find it on your account page under the "API key" tab)

Example of API response

{
    "location_id": "F01E165B-22F3-4591-89D4-F238E92F6885",
    "type": "point",
    "coordinates": [
       {
        "lat": 51.5072,
        "lon": -0.1275
       }
     ]
  }
]

Fields in API response

location_id Unique identifier of the location assigned at resource creation
type Type of the location
lat Latitude of the location, decimal (−90; 90)
lon Longitude of the location, decimal (-180; 180)

How to delete a location

You could delete created location by its id number using folowing URL. Please pay attention, that all solar panels assosiated with this location will deleted as well. In case of successful removing method returns an HTTP code 204.

Method: DELETE

URL

https://api.openweathermap.org/energy/2.0/location/{location_id}?appid={API key}

Parameters
`location_id`	required	Unique identifier of the location assigned at resource creation
`appid`	required	Your unique API key (you can always find it on your account page under the "API key" tab)

URL example

https://api.openweathermap.org/energy/2.0/location/F01E165B-22F3-4591-89D4-F238E92F6885?appid={API key}

API response

Please pay attention if the delete request is successfully processed, then no response will be returned.

Step 2: Operations with solar panels

How to create a solar panel

This HTTP method is used to create a new solar panel associated with location and receive solar panel ID for this panel. You need to pass a set of solar panel parameters: tilt, azimuth and peak power. In case of successful creation method returns an HTTP code 201.

Method: POST

Header: Content-Type: application/json

URL

https://api.openweathermap.org/energy/2.0/location/{location_id}/panels?appid={API key}

Parameters
`location_id`	required	Unique identifier of the location assigned at resource creation
`appid`	required	Your unique API key (you can always find it on your account page under the "API key" tab)

Example of the request body

{
  "type": "mono-si",
  "area": 1.5,
  "tilt": 45,
  "azimuth": 182,
  "peak_power": 2.5
}

Parameters
`type`	required	PV technology type used in solar panel. In case not specified `mono-si` will be assumed. Allowed technology types: `mono-si`┃`poly-si`┃`tf-as`┃`cdte`
`area`	required	Area of solar panel in square meters. In case `peak_power` is not specified then in the `POST` request then `area` must be specified instead to be able to estimate panel power output. Solar panel area must not be equal to or less than 0.
`tilt`	required	Panel installation tilt angle in degrees (0; 90)
`azimuth`	required	Panel installation azimuth angle in degrees (0; 360). An azimuth circle consists of 360 degrees. Ninety degrees corresponds to east, 180 degrees is south, 270 degrees is west, and 360 degrees and 0 degrees mark north
`peak_power`	required	Total solar panel installation peak power output in kilowatts. In case `area` is not specified in the `POST` request then `peak_power` must be specified instead. In case both `area` and `peak_power` are specified, `peak_power` will be used. In case only `area` is specified, `peak_power` will be calculated from `area` and `type`. Solar panel peak power must not be equal to or less than 0.

Example of API response

{
  "panel_id": "F48BE762-6101-405B-BB72-E0CA9FE1A8FF",
  "location_id": "F01E165B-22F3-4591-89D4-F238E92F6885",
  "type": "mono-si",
  "area": 1.5,
  "tilt": 45,
  "azimuth": 182,
  "peak_power": 2.5
}

Fields in API response

panel_idUnique identifier of the solar panel assigned at resource creation
location_idUnique identifier of the location assigned at resource creation
typePV technology type used in solar panel
area Area of solar panel, m2
tilt Panel installation tilt angle in degrees (0; 90)
azimuth Panel installation azimuth angle in degrees (0; 360)
peak_power Total solar panel installation peak power output in kilowatts

How to get a solar panel data

You could get information about created solar panel by its id number using API call below. In case of success method returns an HTTP code 200.

Method: GET

URL

https://api.openweathermap.org/energy/2.0/panel/{panel_id}?appid={API key}

Parameters
`panel_id`	required	Unique identifier of the solar panel assigned at resource creation
`appid`	required	Your unique API key (you can always find it on your account page under the "API key" tab)

URL example

https://api.openweathermap.org/energy/2.0/panel/F48BE762-6101-405B-BB72-E0CA9FE1A8FF?appid={API key}

Example of API response

{
  "panel_id": "F48BE762-6101-405B-BB72-E0CA9FE1A8FF",
  "location_id": "F01E165B-22F3-4591-89D4-F238E92F6885",
  "type": "mono-si",
  "area": 1.5,
  "tilt": 45,
  "azimuth": 182,
  "peak_power": 2.5
}

Fields in API response

panel_id Unique identifier of the solar panel assigned at resource creation
location_idUnique identifier of the location assigned at resource creation
typePV technology type used in solar panel
area Area of solar panel, m2
tilt Panel installation tilt angle in degrees (0; 90)
azimuth Panel installation azimuth angle in degrees (0; 360)
peak_power Total solar panel installation peak power output in kilowatts (kW)

How to get a list of created solar panels

You could get a list of all created solar panels for particular location using OpenWeather API key. In case of success method returns an HTTP code 200.

Method: GET

URL

https://api.openweathermap.org/energy/2.0/location/{location_id}/panels?appid={API key}

Parameters
`location_id`	required	Unique identifier of the location assigned at resource creation
`appid`	required	Your unique API key (you can always find it on your account page under the "API key" tab)

URL example

https://api.openweathermap.org/energy/2.0/location/F01E165B-22F3-4591-89D4-F238E92F6885/panels?appid={API key}

Example of API response

[
  {
    "panel_id": "F48BE762-6101-405B-BB72-E0CA9FE1A8FF",
    "location_id": "F01E165B-22F3-4591-89D4-F238E92F6885",
    "type": "mono-si",
    "area": 1.5,
    "tilt": 45,
    "azimuth": 182,
    "peak_power": 2.5
  }
]

Fields in API response

panel_id Unique identifier of the solar panel assigned at resource creation
location_idUnique identifier of the location assigned at resource creation
typePV technology type used in solar panel
area Area of solar panel, m2
tilt A Panel installation tilt angle in degrees (0; 90)
azimuth Panel installation azimuth angle in degrees (0; 360)
peak_power Total solar panel installation peak power output in kilowatts

How to delete a solar panel

You could delete created solar panel by its id number using folowing API call. In case of successful removing method returns an HTTP code 204.

Method: DELETE

URL

https://api.openweathermap.org/energy/2.0/panel/{panel_id}?appid={API key}

Parameters
`panel_id`	required	Unique identifier of the solar panel assigned at resource creation
`appid`	required	Your unique API key (you can always find it on your account page under the "API key" tab)

URL example

https://api.openweathermap.org/energy/2.0/panel/F01E165B-22F3-4591-89D4-F238E92F6885?appid={API key}

API response

Please pay attention if the delete request is successfully processed, then no response will be returned.

Step 3: Get solar panel power output and solar irradiation data by location

To get solar panel power output data make an API call according rules below.

In this section you will find how to request historical starting from 1st January 1979, current or forecast for 15 days ahead daily aggregated and accumulated 1 day, 1 hour or 15 minutes interval detalization for solar panel power output and solar irradiation data for particular geographical location and for specified date.

You could find detailed information about what technologies, algorithms, etc. are behind the solar irradiation calculations here . In case of success method returns an HTTP code 200. Please pay attention that solar panel output values are given for averaged efficiency with a performance ratio 0.75.

How to make an API call

URL

https://api.openweathermap.org/energy/2.0/location/{location_id}/interval_data?date={date}&interval={interval}&appid={API key}

Parameters
`location_id`	required	Unique identifier of the location assigned at resource creation
`date`	required	Date in the `YYYY-MM-DD` format for which data is requested. Date available from 1979-01-01 up to +15 days to the current date
`interval`	optional	The time interval during which the energy is summed up and solar panel power output is calculated, defines the temporary resolution of solar radiation data. If not specified, the default interval of "1h" (1 hour) will be used. Available values for this parameter include: "15m" (15 minutes), "1h" (1 hour) and "1d" (1 day)
`appid`	required	Your unique API key (you can always find it on your account page under the "API key" tab)

If the service detected timezone for your location incorrectly you can specify correct timezone manually by adding tz parameter in the ±XX:XX format to API call.

API call

https://api.openweathermap.org/energy/2.0/location/{location_id}/interval_data?date={date}&interval={interval}&tz={tz}&appid={API key}

URL example

https://api.openweathermap.org/energy/2.0/location/F01E165B-22F3-4591-89D4-F238E92F6885/interval_data?date=2023-03-30&interval=1h&tz=+05:45&appid={API key}

Please pay attention that in case timezone is specified time of sunset and sunrise will be returned in accordance with this specified timezone.

URL example

https://api.openweathermap.org/energy/2.0/location/018aa7aa-3d5f-85a2-91ee-b1b53c3e98a4/interval_data?date=2021-05-01&interval=1h&appid={API key}

Example of API response

{
  "location_id": "01955d08-a960-8b0a-819c-553b7b742ebe",
  "lat": 70.609,
  "lon": 170.89,
  "date": "2025-03-01",
  "tz": "+12:00",
  "interval": "1h",
  "sunrise": "2025-03-01T08:06:48",
  "sunset": "2025-03-01T17:32:34",
  "intervals": [
    {
      "start": "00:00",
      "end": "00:59",
      "avg_irradiance": {
        "clear_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        },
        "cloudy_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        }
      },
      "max_irradiance": {
        "clear_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        },
        "cloudy_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        }
      },
      "irradiation": {
        "clear_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        },
        "cloudy_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        }
      },
      "panels": [
        {
          "panel_id": "01956c1a-e7ac-85ae-9a03-86208c2f6f83",
          "clear_sky": {
            "avg_power": 0,
            "max_power": 0,
            "energy": 0
          },
          "cloudy_sky": {
            "avg_power": 0,
            "max_power": 0,
            "energy": 0
          }
        },
        {
          "panel_id": "0196afd6-ffe3-885c-8132-53993fbd511a",
          "clear_sky": {
            "avg_power": 0,
            "max_power": 0,
            "energy": 0
          },
          "cloudy_sky": {
            "avg_power": 0,
            "max_power": 0,
            "energy": 0
          }
        }
      ]
    },
    {
      "start": "01:00",
      "end": "01:59",
      "avg_irradiance": {
        "clear_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        },
        "cloudy_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        }
      },
      "max_irradiance": {
        "clear_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        },
        "cloudy_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        }
      },
      "irradiation": {
        "clear_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        },
        "cloudy_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        }
      },
      "panels": [
        {
          "panel_id": "01956c1a-e7ac-85ae-9a03-86208c2f6f83",
          "clear_sky": {
            "avg_power": 0,
            "max_power": 0,
            "energy": 0
          },
          "cloudy_sky": {
            "avg_power": 0,
            "max_power": 0,
            "energy": 0
          }
        },
        {
          "panel_id": "0196afd6-ffe3-885c-8132-53993fbd511a",
          "clear_sky": {
            "avg_power": 0,
            "max_power": 0,
            "energy": 0
          },
          "cloudy_sky": {
            "avg_power": 0,
            "max_power": 0,
            "energy": 0
          }
        }
      ]
    },
    {
      "start": "02:00",
      "end": "02:59",
      "avg_irradiance": {
        "clear_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        },
        "cloudy_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        }
      },
      "max_irradiance": {
        "clear_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        },
        "cloudy_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        }
      },
      "irradiation": {
        "clear_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        },
        "cloudy_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        }
      },
      "panels": [
        {
          "panel_id": "01956c1a-e7ac-85ae-9a03-86208c2f6f83",
          "clear_sky": {
            "avg_power": 0,
            "max_power": 0,
            "energy": 0
          },
          "cloudy_sky": {
            "avg_power": 0,
            "max_power": 0,
            "energy": 0
          }
        },
        {
          "panel_id": "0196afd6-ffe3-885c-8132-53993fbd511a",
          "clear_sky": {
            "avg_power": 0,
            "max_power": 0,
            "energy": 0
          },
          "cloudy_sky": {
            "avg_power": 0,
            "max_power": 0,
            "energy": 0
          }
        }
      ]
    },
    {
      "start": "03:00",
      "end": "03:59",
      "avg_irradiance": {
        "clear_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        },
        "cloudy_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        }
      },
      "max_irradiance": {
        "clear_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        },
        "cloudy_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        }
      },
      "irradiation": {
        "clear_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        },
        "cloudy_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        }
      },
      "panels": [
        {
          "panel_id": "01956c1a-e7ac-85ae-9a03-86208c2f6f83",
          "clear_sky": {
            "avg_power": 0,
            "max_power": 0,
            "energy": 0
          },
          "cloudy_sky": {
            "avg_power": 0,
            "max_power": 0,
            "energy": 0
          }
        },
        {
          "panel_id": "0196afd6-ffe3-885c-8132-53993fbd511a",
          "clear_sky": {
            "avg_power": 0,
            "max_power": 0,
            "energy": 0
          },
          "cloudy_sky": {
            "avg_power": 0,
            "max_power": 0,
            "energy": 0
          }
        }
      ]
    },
    {
      "start": "04:00",
      "end": "04:59",
      "avg_irradiance": {
        "clear_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        },
        "cloudy_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        }
      },
      "max_irradiance": {
        "clear_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        },
        "cloudy_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        }
      },
      "irradiation": {
        "clear_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        },
        "cloudy_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        }
      },
      "panels": [
        {
          "panel_id": "01956c1a-e7ac-85ae-9a03-86208c2f6f83",
          "clear_sky": {
            "avg_power": 0,
            "max_power": 0,
            "energy": 0
          },
          "cloudy_sky": {
            "avg_power": 0,
            "max_power": 0,
            "energy": 0
          }
        },
        {
          "panel_id": "0196afd6-ffe3-885c-8132-53993fbd511a",
          "clear_sky": {
            "avg_power": 0,
            "max_power": 0,
            "energy": 0
          },
          "cloudy_sky": {
            "avg_power": 0,
            "max_power": 0,
            "energy": 0
          }
        }
      ]
    },
    {
      "start": "05:00",
      "end": "05:59",
      "avg_irradiance": {
        "clear_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        },
        "cloudy_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        }
      },
      "max_irradiance": {
        "clear_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        },
        "cloudy_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        }
      },
      "irradiation": {
        "clear_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        },
        "cloudy_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        }
      },
      "panels": [
        {
          "panel_id": "01956c1a-e7ac-85ae-9a03-86208c2f6f83",
          "clear_sky": {
            "avg_power": 0,
            "max_power": 0,
            "energy": 0
          },
          "cloudy_sky": {
            "avg_power": 0,
            "max_power": 0,
            "energy": 0
          }
        },
        {
          "panel_id": "0196afd6-ffe3-885c-8132-53993fbd511a",
          "clear_sky": {
            "avg_power": 0,
            "max_power": 0,
            "energy": 0
          },
          "cloudy_sky": {
            "avg_power": 0,
            "max_power": 0,
            "energy": 0
          }
        }
      ]
    },
    {
      "start": "06:00",
      "end": "06:59",
      "avg_irradiance": {
        "clear_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        },
        "cloudy_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        }
      },
      "max_irradiance": {
        "clear_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        },
        "cloudy_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        }
      },
      "irradiation": {
        "clear_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        },
        "cloudy_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        }
      },
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            "avg_power": 0,
            "max_power": 0,
            "energy": 0
          },
          "cloudy_sky": {
            "avg_power": 0,
            "max_power": 0,
            "energy": 0
          }
        }
      ]
    },
    {
      "start": "20:00",
      "end": "20:59",
      "avg_irradiance": {
        "clear_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        },
        "cloudy_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        }
      },
      "max_irradiance": {
        "clear_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        },
        "cloudy_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        }
      },
      "irradiation": {
        "clear_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        },
        "cloudy_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        }
      },
      "panels": [
        {
          "panel_id": "01956c1a-e7ac-85ae-9a03-86208c2f6f83",
          "clear_sky": {
            "avg_power": 0,
            "max_power": 0,
            "energy": 0
          },
          "cloudy_sky": {
            "avg_power": 0,
            "max_power": 0,
            "energy": 0
          }
        },
        {
          "panel_id": "0196afd6-ffe3-885c-8132-53993fbd511a",
          "clear_sky": {
            "avg_power": 0,
            "max_power": 0,
            "energy": 0
          },
          "cloudy_sky": {
            "avg_power": 0,
            "max_power": 0,
            "energy": 0
          }
        }
      ]
    },
    {
      "start": "21:00",
      "end": "21:59",
      "avg_irradiance": {
        "clear_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        },
        "cloudy_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        }
      },
      "max_irradiance": {
        "clear_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        },
        "cloudy_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        }
      },
      "irradiation": {
        "clear_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        },
        "cloudy_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        }
      },
      "panels": [
        {
          "panel_id": "01956c1a-e7ac-85ae-9a03-86208c2f6f83",
          "clear_sky": {
            "avg_power": 0,
            "max_power": 0,
            "energy": 0
          },
          "cloudy_sky": {
            "avg_power": 0,
            "max_power": 0,
            "energy": 0
          }
        },
        {
          "panel_id": "0196afd6-ffe3-885c-8132-53993fbd511a",
          "clear_sky": {
            "avg_power": 0,
            "max_power": 0,
            "energy": 0
          },
          "cloudy_sky": {
            "avg_power": 0,
            "max_power": 0,
            "energy": 0
          }
        }
      ]
    },
    {
      "start": "22:00",
      "end": "22:59",
      "avg_irradiance": {
        "clear_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        },
        "cloudy_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        }
      },
      "max_irradiance": {
        "clear_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        },
        "cloudy_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        }
      },
      "irradiation": {
        "clear_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        },
        "cloudy_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        }
      },
      "panels": [
        {
          "panel_id": "01956c1a-e7ac-85ae-9a03-86208c2f6f83",
          "clear_sky": {
            "avg_power": 0,
            "max_power": 0,
            "energy": 0
          },
          "cloudy_sky": {
            "avg_power": 0,
            "max_power": 0,
            "energy": 0
          }
        },
        {
          "panel_id": "0196afd6-ffe3-885c-8132-53993fbd511a",
          "clear_sky": {
            "avg_power": 0,
            "max_power": 0,
            "energy": 0
          },
          "cloudy_sky": {
            "avg_power": 0,
            "max_power": 0,
            "energy": 0
          }
        }
      ]
    },
    {
      "start": "23:00",
      "end": "23:59",
      "avg_irradiance": {
        "clear_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        },
        "cloudy_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        }
      },
      "max_irradiance": {
        "clear_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        },
        "cloudy_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        }
      },
      "irradiation": {
        "clear_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        },
        "cloudy_sky": {
          "ghi": 0,
          "dni": 0,
          "dhi": 0
        }
      },
      "panels": [
        {
          "panel_id": "01956c1a-e7ac-85ae-9a03-86208c2f6f83",
          "clear_sky": {
            "avg_power": 0,
            "max_power": 0,
            "energy": 0
          },
          "cloudy_sky": {
            "avg_power": 0,
            "max_power": 0,
            "energy": 0
          }
        },
        {
          "panel_id": "0196afd6-ffe3-885c-8132-53993fbd511a",
          "clear_sky": {
            "avg_power": 0,
            "max_power": 0,
            "energy": 0
          },
          "cloudy_sky": {
            "avg_power": 0,
            "max_power": 0,
            "energy": 0
          }
        }
      ]
    }
  ]
}

Fields in API response

location_id Unique identifier of the location assigned at resource creation
lat Latitude of the location,decimal (−90; 90)
lon Longitude of the location,decimal (-180; 180)
date Date specified in the API request in the `YYYY-MM-DD` format (from 1979-01-01 up to +15 days to the current date)
tz Timezone in the ±XX:XX format
interval Time interval during which the energy is summed up. Determines temporary resolution of solar radiation data. If not specified "1h" interval will be used. Available values : 15m, 1h and 1d.
sunrise Date and time of sunrise based on date specified in the API request and timezone authomatically determinated by on latitude and longitute of requested location. If you added timezone parameter into API request, then time of sunrise will be recalculated in accordance with this timezone. For polar areas in midnight sun and polar night periods this parameter is not returned in the response
sunset Date and time of sunset based on date specified in the API request and timezone authomatically determinated by on latitude and longitute of requested location. If you added timezone parameter into API request, then time of sunset will be recalculated in accordance with this timezone. For polar areas in midnight sun and polar night periods this parameter is not returned in the response
intervals Interval detalization of daily aggregated irradiation data for the requested date
- start Start of the time interval for which the energy is summed up. Time interval displays hour and minutes of the day for which indexes were aggregated in "hh:mm" format
- end End of the time interval for which the energy is summed up. Time interval displays hour and minutes of the day for which indexes were aggregated in "hh:mm" forma
- avg_irradiance Average irradiance per period
  - clear_skyClear sky model
    - ghi Clear sky GHI - Global Horizontal Irradiance, W/m²
    - dni Clear sky DNI - Direct Normal Irradiance, W/m²
    - dhi Clear sky DHI - Diffuse Horizontal Irradiance, W/m²
  - cloudy_skyCloudy sky model
    - ghi Cloudy sky GHI - Global Horizontal Irradiance, W/m²
    - dni Cloudy sky DNI - Direct Normal Irradiance, W/m²
    - dhi Cloudy sky DHI - Diffuse Horizontal Irradiance, W/m²
- max_irradiance Maximum irradiance per period
  - clear_skyClear sky model
    - ghi Clear sky GHI - Global Horizontal Irradiance, W/m²
    - dni Clear sky DNI - Direct Normal Irradiance, W/m²
    - dhi Clear sky DHI - Diffuse Horizontal Irradiance, W/m²
  - cloudy_skyCloudy sky model
    - ghi Cloudy sky GHI - Global Horizontal Irradiance, W/m²
    - dni Cloudy sky DNI - Direct Normal Irradiance, W/m²
    - dhi Cloudy sky DHI - Diffuse Horizontal Irradiance, W/m²
- irradiation Irradiation related information
  - clear_skyClear sky model
    - ghi Clear sky GHI - Global Horizontal Irradiation, Wh/m²
    - dni Clear sky DNI - Direct Normal Irradiation, Wh/m²
    - dhi Clear sky DHI - Diffuse Horizontal Irradiation, Wh/m²
  - cloudy_skyCloudy sky model
    - ghi Cloudy sky GHI - Global Horizontal Irradiation, Wh/m²
    - dni Cloudy sky DNI - Direct Normal Irradiation, Wh/m²
    - dhi Cloudy sky DHI - Diffuse Horizontal Irradiation, Wh/m²
- panels Solar panels related information
  - panel_id Unique identifier of the solar panel assigned at resource creation
  - clear_sky Clear sky model
    - avg_power Solar panel average power output amount per requested interval for clear sky model, kW. Please pay attention that solar panel output values are given for averaged efficiency with a performance ratio 0.75
    - max_power Solar panel maximum power output amount per requested interval for clear sky model, kW. Note that for the smallest available interval max_power and avg_power will be the same. Please pay attention that solar panel output values are given for averaged efficiency with a performance ratio 0.75
    - energy Solar panel energy output amount per requested interval for clear sky model, kWh. Note that for the 1h interval energy and avg_power will be the same. Please pay attention that solar panel output values are given for averaged efficiency with a performance ratio 0.75
  - cloudy_sky Cloudy sky model
    - avg_power Solar panel average power output amount per requested interval for cloudy sky model, kW. Please pay attention that solar panel output values are given for averaged efficiency with a performance ratio 0.75
    - max_power Solar panel maximum power output amount per requested interval for cloudy sky model, kW. Note that for the smallest available interval max_power and avg_power will be the same. Please pay attention that solar panel output values are given for averaged efficiency with a performance ratio 0.75
    - energy Solar panel energy output amount per requested interval for cloudy sky model, kWh. Note that for the 1h interval energy and avg_power will be the same. Please pay attention that solar panel output values are given for averaged efficiency with a performance ratio 0.75

API errors

Structure of API errors

In case of incorrected API call you will receive API error response. Error response payload returned for all types of errors with the structure below.

Example of error response

{
    "code": "400",
    "message": "Invalid date format",
    "parameters": [
        "date"
    ]
}

code Code of error
message Description of error
parameters(optional) List of request parameters names that are related to this particular error

Errors list

Please find more detailed information about some popular errors below.

API calls return an error 400

Error 400 - Bad Request. You can get error 400 error if either some mandatory parameters in the request are missing or some of request parameters have incorrect format or values out of allowed range. List of all parameters names that are missong or incorrect will be returned in `parameters`attribute of the `ErrorResponse` object.
API calls return an error 401

Error 401 - Unauthorized. You can get 401 error if API token did not providen in the request or in case API token provided in the request does not grant access to this API. You must add API token with granted access to the product to the request before returing it.
API calls return an error 404

Error 404 - Not Found. You can get 404 error if data with requested parameters (lat, lon, date, location_id, panel_id) does not exist in service database. You must not retry the same request.
API calls return an error 429

Error 429 - Too Many Requests. You can get 429 error if key quato of requests for provided API to this API was exceeded. You may retry request after some time or after extending your key quota.
API calls return errors '5xx'

Errors 5xx - Unexpected Error. You can get '5xx' error in case of other internal errors. Error Response code will be `5xx`. Please contact us and enclose an example of your API request that receives this error into your email to let us analyze it and find a solution for you promptly. You may retry the request which led to this error.