https://ec.europa.eu/jrc/en/PVGIS/downloads/NSRDB
https://www.ncdc.noaa.gov/data-access/land-based-station-data/land-based-datasets/solar-radiation
which you can simply google to find more.
I usually go to these links for preliminary resource assessments and you can download irradiation maps specific to your area.
https://globalsolaratlas.info/map?c=11.523088,8.4375,3
https://solargis.com/maps-and-gis-data/overview
For precise irradiation data for modeling purposes, we use PVSyst, which is a paid software.
Dear Kumar:
you can use any of this useful sites:
1- https://ec.europa.eu/jrc/en/PVGIS/downloads/NSRDB.
2- https://www.nrel.gov/gis/solar.html.
3- https://www.ncdc.noaa.gov/data-access/land-based-station-data/land-based-datasets/solar-radiation.
4- https://solcast.com/
5- NASA Data at :https://www.google.com/search?rlz=1C1CHZL_arUS769US769&q=NASA+Surface+meteorology+and+solar+Energy&sa=X&ved=2ahUKEwi_3fCoxY3uAhUEqxoKHZUSCg4Q1QIoAHoECBAQAQ&biw=1366&bih=657
- Badges
- Science topic