What is it about?
This model assumes that the sky is in one of three cloudiness states: cloudy, clear, and scattered clouds. The model then learns the probabilities of jumping between these cloudiness states. After learning these probabilities an infinite number of time-series can be generated to simulate the solar yield in a location.
Featured Image
Photo by Zbynek Burival on Unsplash
Why is it important?
This model formally connected the physical and mathematical representations of the clear-sky models, which was not done previously.
Perspectives

It was a simple yet novel application of the hidden Markov models.
Mahmoud Shepero
Uppsala Universitet
Read the Original
This page is a summary of: A generative hidden Markov model of the clear-sky index, Journal of Renewable and Sustainable Energy, July 2019, American Institute of Physics,
DOI: 10.1063/1.5110785.
You can read the full text:
Contributors
The following have contributed to this page