Parameters and data specification

Solar radiation parameters

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 parameters

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 parameters

ALB	Ground surface albedo
PWAT	Precipitable water	kg/m2

PV parameters

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.

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) Collada 3D (.dae) PVsyst (.pvc) Bill of materials (.xlsx)