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SRRL SolarSIM-G Global Horizontal

SRRL SolarSIM-G Global Horizontal

Latitude: 39.7423o North
Longitude: 105.1785o West
Elevation: 1828.8 AMSL
Time Zone: MST

Data sets currently available on SRRL SSIMG web site Additional information or data


The SolarSIM-G offers a low cost option of measuring solar spectral irradiance for renewable energy applications. The SolarSIM-G measures the solar intensity at several narrow band wavelength regions then uses a model to generate accurate spectral data from 280 to 4000 nm. Raw data from the instrument is logged by a Campbell data logger and then made available on this web site where the user can generate spectral data on-the-fly (one spectrum at a time) or the user can download the provided modeling software from the manufacture to generate large volumes of spectral data from the raw data.

The National Renewable Energy Laboratory (NREL) purchased a Global Horizontal SolarSIM-G from Spectrafy in 2021. The instrument was installed at the Solar Radiation Research Laboratory (SRRL) on April 30, 2021. The long-term performance of the SolarSIM-G will be compared to traditional diode-array spectroradiometers located at SRRL.


Please visit the SRRL Baseline Measurement System (BMS) for our primary data sets.

For more information about this website or the data contact: Afshin Andreas