Solar irradiance data for United States

Solcast models the incident solar radiation in real-time, worldwide
Global horizontal irradiance on Sun 21 May, 2023

Monitor America's solar activities and patterns from New York to Arizona using Solcast’s irradiance maps. Our real-time and forecast irradiance data and PV power data help businesses make informed solar decisions. Powered by live satellite data, our maps update every 5-15 minutes and are designed for solar applications.