Overview of the NREL NSRDB
The National Solar Radiation Database (NSRDB) is a high-resolution satellite-derived dataset covering solar radiation (GHI, DNI, DHI) and meteorological elements across the Americas and global regions. Managed by NREL, it provides developer APIs and web viewers for public access.
Key Features
- Decades of Satellite Data: Half-hourly solar resource data spanning over 20 years.
- Developer API: Free REST API allowing software applications to query solar irradiance by lat/long.
- Physics-Based Satellite Modeling: Uses the Physical Solar Model (PSM) for cloud property analysis.