Uncertainty Model for Total Solar Irradiance Estimation on Australian Rooftops

Hassan Al-Saadi, Rastko Zivanovic, Said Al-Sarawi

Research output: Chapter in Book/Report/Conference proceedingsConference contribution

1 Citation (Scopus)


The installations of solar panels on Australian rooftops have been in rise for the last few years, especially in the urban areas. This motivates academic researchers, distribution network operators and engineers to accurately address the level of uncertainty resulting from grid-connected solar panels. The main source of uncertainty is the intermittent nature of radiation, therefore, this paper presents a new model to estimate the total radiation incident on a tilted solar panel. Where a probability distribution factorizes clearness index, the model is driven upon clearness index with special attention being paid for Australia with the utilization of best-fit-correlation for diffuse fraction. The assessment of the model validity is achieved with the adoption of four goodness-of-fit techniques. In addition, the Quasi Monte Carlo and sparse grid methods are used as sampling and uncertainty computation tools, respectively. High resolution data resolution of solar irradiations for Adelaide city were used for this assessment, with an outcome indicating a satisfactory agreement between actual data variation and model.

Original languageEnglish
Title of host publicationE3S Web of Conferences
Publication statusPublished - 20 Nov 2017
EventWorld Renewable Energy Congress-17 - Manama, Kingdom of Bahrain, Austria
Duration: 3 Dec 20168 Dec 2016

Publication series

NameE3S Web of Conferences
PublisherEDP Sciences


ConferenceWorld Renewable Energy Congress-17
CityManama, Kingdom of Bahrain


  • Diffuse fraction correlation
  • Goodness of fit
  • Solar irradiation prediction
  • Tilted surface


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