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XML format via REST API: Solargis Forecast API service CSV format via SFTP or email: Solargis data via SFTP service |
| GHI | Global horizontal irradiation | kWh/m2 | |
| DIF | Diffuse horizontal irradiation | kWh/m2 | |
| DNI | Direct normal irradiation | kWh/m2 | |
| GTI | Global tilted irradiation | kWh/m2 |
| TEMP | Air temperature at 2 meters | °C |
| TD | Dew point temperature | °C |
| WBT | Wet bulb temperature | °C |
| TMOD | Module temperature | °C |
| WS | Wind speed m/s at 10 m above ground | m/s |
| WS100 | Wind speed at 100 m | m/s |
| WD | Wind direction at 10 m above ground | ° |
| WD100 | Wind direction at 100 m | ° |
| WG | Wind gusts at 10 m above ground | m/s |
| RH | Relative humidity at 2m above ground | % |
| AP | Atmospheric pressure | hPa |
| PWAT | Precipitable water | kg/m2 |
| PREC | Precipitation (rainfall) | mm |
| SDWE | Snow depth water equivalent | mm |
| SFWE | Water equivalent of fresh snowfall rate | kg/m2/hour |
| HAILRISK25MM | Potential hail risk with hail size ≥ 1 inch (~2.5 cm) within 50 km radius |
% |
| HAILRISK38MM | Potential hail risk with hail size ≥ 1.5 inch (~3.8 cm) within 50 km radius |
% |
| HAILRISK50MM | Potential hail risk with hail size ≥ 2 inch (~5 cm) within 50 km radius |
% |
| PVOUT | Photovoltaic output | kWh |
| ELE | Elevation | m |
| SE | Solar elevation | ° |
| SA | Solar azimuth | ° |
| INC | Incidence angle of direct irradiance | ° |
| TILT | Tilt of inclined surface | ° |
| ASPECT | Aspect of inclined surface | ° |
| KC | Clear-sky index | |
| KT | Clearness index |
The full list of parameters can be found here.
| Primary data | 5/10/15-minute step (depending on satellite mission and region) |
| Aggregated data | hourly, daily, monthly, yearly |
| Numerical Weather Prediction models |
every 6 hours every 1 hour in the Contiguous United States (CONUS) |
|
Cloud Motion Vector model |
every 5, 10, or 15 minutes |
In other words, a revised forecast is available every 5/10/15 minutes for next hours, and a revised forecast for next day is typically available every 6-12 hours.
Solargis Forecast is a blend of NWP and CMV models: the nearest ~3 hours are based on CMV (Cloud Motion Vector), and beyond that, it's based on NWP. For more information about Forecast model details, click here.
