Solar Irradiance History Forecast Bulk

Product concept

Solar Irradiance History Forecast Bulk is an one-off export of previously made solar irradiance forecasts for any coordinates on the globe.

The archive contains a 16-day solar irradiance forecast with a 1-hour step for each day starting from April 2017 (a 15-minute forecast step is available by request). Please find detailed description in the "Product structure" and "Fields in Solar Irradiance History Forecast Bulk" sections.

Product structure

Solar Irradiance History Forecast Bulk provides a CSV archive of previously made 16 days ahead forecasts on solar irradiance data. The dataset for each day includes 4 kits of historical solar irradiance forecasts on 16 days ahead both for clear sky and cloudy sky models with 1 hour step made on this specified date.
Solar Irradiance forecast is generated 4 time per day at these times: 00:00 UTC, 06:00 UTC, 12:00 UTC, 18:00 UTC. Historical solar irradiance forecasts are avaiable starting from April 2017. It means that for each day, starting from April 2017, you will have four 16-day forecasts.
Thus, each day has the following structure:

                     
   00:00 UTC  {forecast solar irradiance for 1st day - 16th day}
   06:00 UTC  {forecast solar irradiance for 1st day - 16th day}
   12:00 UTC  {forecast solar irradiance for 1st day - 16th day}
   18:00 UTC  {forecast solar irradiance for 1st day - 16th day}
                        
   

The example of data can be found in the "Sample data and examples" section.

The detailed information about what technologies, algorithms, etc. are behind the Solar Irradiance History Forecast Bulk can be founded here.

How to get Solar Irradiance History Forecast Bulk

To request Solar Irradiance History Forecast Bulk for your locations, please contact us via email. We’ll prepare and export the data for you.

Fields in Solar Irradiance History Forecast Bulk

• forecast_dt Forecast calculation time in Unix timestamp
• forecast_dt_iso Forecast calculation time in ISO format
• slice_dt Time for which the corresponding forecast part was calculated in Unix timestamp
• slice_dt_iso Time for which the corresponding forecast part was calculated in ISO format
• lat Latitude of the location,decimal (-90; 90)
• lon Longitude of the location,decimal (-180; 180)
• ghi_cloudy_sky Cloudy sky GHI - Global Horizontal Irradiance, W/m²
• dni_cloudy_sky Cloudy sky DNI - Direct Normal Irradiance, W/m²
• dhi_cloudy_sky Cloudy sky DHI - Diffuse Horizontal Irradiance, W/m²
• ghi_clear_sky Clear sky GHI - Global Horizontal Irradiance, W/m²
• dni_clear_sky Clear sky DNI - Direct Normal Irradiance, W/m²
• dhi_clear_sky Clear sky DHI - Diffuse Horizontal Irradiance, W/m²

Sample data and example

Here you can find and download example of Solar Irradiance History Forecast bulk file in CSV format.

You can download sample of files History Forecast bulk in CSV format using link below:

CSV

Please find below an example of data in CSV format in tabular format.