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Method of Solar Power Prediction

United States Patent Application

20180047170
A1
View the Complete Application at the US Patent & Trademark Office
Techniques for estimating direct and diffuse sunlight reaching a location as a function of time using color whole sky images are provided. In one aspect, a method for forecasting solar insolation is provided that includes the steps of: obtaining color whole sky images using a digital camera which are taken at different times, and wherein an image of a solar disk is present in at least one of the color whole sky images; creating sky transparency images from the color whole sky images; determining atmospheric solar scattering based on a width of the solar disk in the color whole sky images; determining cloud motion trajectories from a time series of the sky transparency images; and calculating the solar insolation as a function of time using the sky transparency, the atmospheric solar scattering, and the cloud motion trajectories. A system for forecasting solar insolation is also provided.
Hamann, Hendrik F. (Yorktown Heights, NY), Klein, Levente (Tuckahoe, NY), Lu, Siyuan (Yorktown Heights, NY), van Kessel, Theodore G. (Millbrook, NY)
15/ 233,412
August 10, 2016
STATEMENT OF GOVERNMENT RIGHTS [0001] This invention was made with Government support under Contract number DE-EE0006017 awarded by Department of Energy. The Government has certain rights in this invention.