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Data and Resources

National Solar Radiation Database

NREL resource assessment and forecasting research information is available from the following sources.

Renewable Resource Data Center (RReDC)

Provides information about biomass, geothermal, solar, and wind energy resources.

Measurement and Instrumentation Data Center

Provides irradiance and meteorological data from stations throughout the United States.

Baseline Measurement System (BMS)

Provides live solar radiation data from approximately 70 instruments at the NREL South Table Mountain site and historical measurements dating to 1981.

Broadband Outdoor Radiometer Calibrations (BORCAL)

Provides results from NREL's calibration of U.S. Department of Energy pyranometers and pyrheliometers.

NREL Pyrheliometer Comparisons (NPC)

Provides reports and photos from past NREL pyrheliometer comparisons.


A list of publications from the resource assessment and forecasting group is provided on the RReDC.

Additional publications are available on NREL's publications database.