YouSolar has developed its own historical and real-time hourly solar irradiance data service, SPOT™, that has global coverage and includes terrain shading. SPOT™ accesses historical and real-time meteorological and terrain data from multiple satellites to create a location-specific historical data set and real-time forecast.
SPOT™ uses a NASA forecast model that assimilates global observations from geostationary and polar-orbiting satellites. Model forecasts are tuned with historical satellite observations from the NASA Clouds and the Earth’s Radiant Energy System datasets, which NASA validates against surface radiometer networks.
SPOT™ data is updated every 3 hours and sent to each PowerBloc™. The irradiance data is calculated for the plane of the solar array and converted to solar energy production by PowerBloc™’s energy management system and used in daily and day-ahead operations.
Hourly historical data is available globally from 2001 to the present. SPOT™ builds on the capabilities of the NREL datasets by offering global coverage and consistent historical and forecast data. SPOT™ continually improves by validating our predicted solar production against actual solar production from reference photovoltaic arrays.
SPOT™ is available for solar project operators and under a subscription license.