Solargis Forecast: Solar performance forecasts and prediction

Data accessibility

  • XML format via REST API 
  • CSV format via FTP or email

More information about Solargis Forecast API service

Data parameters available

PVOUT PV electricity output
GHI Global horizontal irradiation
DNI Direct normal irradiation
GTI Global tilted irradiation
TEMP Air temperature at 2m above ground
WS Wind speed m/s at 10m above ground
WD Wind direction at 10m above ground
WG Wind gusts at 10m above ground
RH Relative humidity at 2m above ground
AP Atmospheric pressure
PWAT Precipitable water
PREC Precipitation (rainfall)
SDWE Snow depth water equivalent

Forecast range and frequency

  • Forecasts are available for time range of up to 14 days ahead
  • Frequency of the updates:
    • Forecast based on Numerical Weather Prediction models are updated 2 to 4 times per day
    • Forecasts based on Cloud Motion Vector model are updated every 15 or 30 minutes
    • In other words, a revised forecast is available every 15/30 minutes for next hours, and a revised forecast for next day is typically available every 6-12 hours.

Geographical availability

Solargis NOWCAST NWP FORECAST coverage map v202402