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  • SolarGIS FTP API - The service can deliver regularly updated PV simulation, solar radiation and meteo. data to FTP sites. This service provides most comprehensive set of input parameters. Request processing is asynchronous (client registers a request, server handles the request later, client checks  for the response) and can be done regularly (e.g. once per day, per month) or occasionally. Both request and response are CSV delimited text files, thus they can easily be automated and processed in batch mode. In case of FTP API, every single day the user is updated by operational data for yesterday. After the calendar month is fully completed, user is shipped with the same data again, because not all inputs are fully ready at the time of the daily update. This process is called re-analysis. There can be a minor difference between operational and re-analysed (archive) data. Available amount of requested data is related to available period of the particular data source. Please refer to the map of coverage. For pricing and setting up FTP user account, please contact us.
  • SolarGIS WS API Time Series - This standard Web service is aimed for quickly serving operational and forecast data (PV simulation, solar radiation and meteorological data) in synchronous manner (client waits for server to finish response). Typical usage for the service is performance monitoring, forecasting, comparisons of recorded vs. simulated PV data, asset management. Due to performance reason the amount of data within one request is currently limited to period of max. 31 days regardless to time resolution (the same rule applies for hourly or 15-minute time step). Both request and response are XML documents.  WS API request parameters (represented as XML elements and attributes) are formally described by XML Schema Definition documents (XSD). By using  XML schema document, each piece of XML document can be verified programmatically. For this service we provide two endpoint variants, classical SOAP or more light REST-like access. Look for more technical information hereForecast data are available in the same way as with the FTP API. Authentication and billing is based on API key registered with the user. Please contact us to discuss your specific requirements, and we will prepare a customized quotation for you.
  • SolarGIS WS API Long-term Averages - Standard XML-based Web service provides long-term averaged PV simulation, solar radiation and meteo. data with global coverage. Suitable for site prospection and feasibility. The service imitates the click on Calculate button in SolarGIS pvPlanner application. The request and response for the service is not covered in this user guide. Technical information can be found here.


Forecast of PV, Solar Radiation and Meteorological Data


  • White regionYellow regions: GFS model from NOAA, USA is available globally with forecasting up to 7 days ahead (today + 7 days = 8 days affected in total). 
  • Violet regions: more advanced IFS model from ECMWF, UK, frequency . Frequency of the update is once in 12 hours, forecasting today + 3 days ahead (4 days in total). The rest of days (up to 7 ahead) is filled by GFS model.