Developer Network NREL NREL Developer Network


Access data and analysis services that provide access to solar resource data and NREL models.

NSRDB Data Downloads

Freely available downloads of The National Solar Radiation Database.

PVDAQ (PV Data Acquisition)

Provides access to photovoltaic performance data collected by NREL for systems throughout the country.


NREL's PVWatts® API estimates the energy production of grid-connected photovoltaic (PV) energy systems based on a few simple inputs.

Solar Dataset Query (GET /api/solar/data_query/v1)

Returns information on the closest climate data for a location.

Solar Resource Data (GET /api/solar/solar_resource/v1)

Returns various types of solar data for a location. The service currently returns data for average Direct Normal Irradiance, average Global Horizontal Irradiance, and average Tilt at Latitude.

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