SolarSat


Measured radiation data for the last 24 hours, updated every hour.

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SolarSat delievers radiation data independent of measurement instruments for any site in Europe, the Middle East, India, or Africa. Radiation is retrieved from satellite images. Air temperature data is taken from weather forecast models.

Our satellite-based global radiation data has a precision of 20% (rel. RMSE) for hourly values, 10% for daily values, and 5% for monthly values. The precision of SolarSat lies in the same range as the precision of radiation sensors (5-10%), but it does not suffer from problems like stain or disruptions.

With SolarSat you get—at a good price—precise, consistent, and reliable data for monitoring your PV plant, without having to rely on measurement instruments or other infrastructure on site.


With SolarSat Standard you get hourly data for the last 24 hours and the following parameters:

  • Global radiation [W/m2]
  • Air temperature [°C]

With SolarSat Advanced you additionally get the following parameters:

  • Direct and diffuse radiation [W/m2]
  • Direct normal radiation [W/m2]
  • Clear sky radiation [W/m2]
  • Global radiation on the inclined plane [W/m2]
  • Reference yield (for standard module and standard inverter) [Wh/kWp]