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21 Σεπ 2022 · Calculate solar radiation for your location (city, address, or zip code) with our free solar irradiance calculator.
Start exploring solar potential by clicking on the map. Select sites, draw rectangles or polygons by clicking the respective map controls. Calculate energy production for selected sites.
This tool makes it possible to estimate the average monthly and yearly energy production of a PV system connected to the electricity grid, without battery storage. The calculation takes into account the solar radiation, temperature, wind speed and type of PV module.
Find and download solar resource map images and geospatial data for the United States and the Americas. For more information on NREL's solar resource data development, see the National Solar Radiation Database (NSRDB).
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.
The largest collection of free solar radiation maps. Download maps of GHI, DNI, and PV output power potential for various countries, continents and regions.
Spatial Maps. Select the calendar on the right to see daily ETo or Solar Radiation maps of California based on Spatial CIMIS data. To retrieve and schedule Spatial CIMIS data, please register, log in, and click on the Spatial Report or Schedule Spatial Report tabs above.
