Solargis Evaluate data specifications

Solargis Evaluate includes these solar radiation parameters for PV energy yield simulation:

GHI	Global horizontal irradiation *	kWh/m2 **
DNI	Direct normal irradiation *	kWh/m2 **
D2G	Ratio of diffuse to global irradiation *
GTI	Global tilted irradiation	kWh/m2 **

* including values not considering terrain shading

** for sub-hourly time resolutions, the parameter is provided as irradiance (W/m²)

 

Meteorological data helps assess site conditions and optimize PV plant design for local weather:

TEMP	Air temperature at 2 meters	°C
RH	Relative humidity at 2 meters above ground	%
TD	Dew point temperature	°C
WBT	Wet bulb temperature	°C
WS	Wind speed m/s at 10 meters above ground	m/s
WD	Wind direction m/s at 10 meters above ground	°
WG	Wind gusts at 10 meters above ground	m/s
AP	Atmospheric pressure	hPa
PREC	Precipitation (rainfall)	mm
SDWE	Water equivalent of accumulated snow depth	kg/m2

Environmental factors affect PV performance and long-term energy production:

ALB	Ground surface albedo
PWAT	Precipitable water	kg/m2

Simulated PV output parameters provide energy yield estimates and performance metrics:

PVOUT specific	Specific photovoltaic power output	kWh/kWp **
PVOUT total	Total photovoltaic power output	kWh **
PR	Performance Ratio

** for sub-hourly time resolutions, the parameter is provided as power (kW or W/kWp)

 

Other data

SE	Sun elevation	°
SA	Sun azimuth	°

Solar and meteorological data is available from years as indicated on the map above. 
Long-term average ground surface albedo represents a period from 2006 to 2015.

Learn more about how we validate our solar radiation models and our data methodology.

Data formats

Solargis JSON Solargis CSV NREL SAM weather file - only for TMY PVsyst standard format - only for TMY HelioScope weather file - only for TMY

Other available formats

KML boundaries (.kml) GeoJSON (.geojson) Collada 3D (.dae) PVsyst (.pvc) Bill of materials (.xlsx)

See sample data and reports or learn about integrating Solargis data via API.