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NSRDB: National Solar Radiation Database Home About What Is the NSRDB? U.S. Data International Data TMY Spectral On-Demand Data Data Coverage Map Version History Data Sets Download Instructions API Instructions Archives NSRDB Data - HSDS Demo Resources User Manuals Links Publications NSRDB Viewer Contact Us Welcome to the National Solar Radiation Database NSRDB Viewer What Is the NSRDB? WHAT IS THE NSRDB? The National Solar Radiation Database (NSRDB) is a serially complete collection of hourly and half-hourly values of meteorological data and the three most common measurements of solar radiation: global horizontal, direct normal and diffuse horizontal irradiance. It covers the United States and a growing subset of international locations. These data have been collected at a sufficient number of locations and temporal and spatial scales to accurately represent regional solar radiation climates. For a given location covered by the dataset, it is possible to see the amount of solar energy that was at a given time, and to predict the potential future availability of solar energy based on past conditions. Read More Latest Publication THE NATIONAL SOLAR RADIATION DATABASE "This paper briefly reviews the complete package of surface observations, models, and satellite data." U.S. Data NREL has provided solar resource data for the United States through the NRSDB for more than 25 years. View International Data The NSRDB contains not only data for the United States, but also for a growing list of countries in different parts of the world. View Typical Meterological Year Learn about the Typical Meterological Year (TMY) data type used in the NSRDB. View Spectral On-Demand Data The spectral on-demand data service provides solar irradiances on inclined PV panels. View Data & Applications Data & Applications NSRDB data is publicly available at no cost. The data can be accessed via the NSRDB Viewer Application. Additionally NSRDB data are compatible with many system performance and economic models, including the following products created by NREL. System Advisor Model the System Advisor Model (SAM) is a free techno-economic software model that facilitates decision-making for people in the renewable energy industry. NSRDB Viewer The NSRDB Viewer is a geospatial web application that allows for the visualization of and the ability to download NSRDB data. PVWatts Calculator Estimates the energy production and cost of energy of grid-connected photovoltaic (PV) energy systems throughout the world. Supports and Contributors Supporters & Contributors DATA COLLECTION FOR THE NSRDB IS A COLLABORATIVE EFFORT. CONTRIBUTORS INCLUDE: HOME RESEARCH Advanced Manufacturing Bioenergy Buildings Chemistry and Nanoscience Computational Science Energy Analysis Energy Storage Energy Systems Integration Facility Geothermal Grid Modernization Hydrogen and Fuel Cells Materials Science Solar Transportation Water Wind FOLLOW NREL The National Renewable Energy Laboratory is a national laboratory of the U.S. Department of Energy , Office of Energy Efficiency and Renewable Energy , operated by the Alliance for Sustainable Energy, LLC . Security & Privacy Policy Accessibility Disclaimer Contact Us Apply for a Job Developers Image Gallery...