Asynchrony of wind and hydropower resources in Australia

Abstract Wind and hydropower together constitute nearly 80% of the renewable capacity in Australia and their resources are collocated. We show that wind and hydro generation capacity factors covary negatively at the interannual time scales. Thus, the technology diversity mitigates the variability of...

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Autores principales:	Udaya Bhaskar Gunturu, Willow Hallgren
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/3b985e5479404c049624d5b9f8fda789
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spelling	oai:doaj.org-article:3b985e5479404c049624d5b9f8fda7892021-12-02T12:30:13ZAsynchrony of wind and hydropower resources in Australia10.1038/s41598-017-08981-02045-2322https://doaj.org/article/3b985e5479404c049624d5b9f8fda7892017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-08981-0https://doaj.org/toc/2045-2322Abstract Wind and hydropower together constitute nearly 80% of the renewable capacity in Australia and their resources are collocated. We show that wind and hydro generation capacity factors covary negatively at the interannual time scales. Thus, the technology diversity mitigates the variability of renewable power generation at the interannual scales. The asynchrony of wind and hydropower resources is explained by the differential impact of the two modes of the El Ni˜no Southern Oscillation – canonical and Modoki – on the wind and hydro resources. Also, the Modoki El Ni˜no and the Modoki La Ni˜na phases have greater impact. The seasonal impact patterns corroborate these results. As the proportion of wind power increases in Australia’s energy mix, this negative covariation has implications for storage capacity of excess wind generation at short time scales and for generation system adequacy at the longer time scales.Udaya Bhaskar GunturuWillow HallgrenNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Udaya Bhaskar Gunturu Willow Hallgren Asynchrony of wind and hydropower resources in Australia
description	Abstract Wind and hydropower together constitute nearly 80% of the renewable capacity in Australia and their resources are collocated. We show that wind and hydro generation capacity factors covary negatively at the interannual time scales. Thus, the technology diversity mitigates the variability of renewable power generation at the interannual scales. The asynchrony of wind and hydropower resources is explained by the differential impact of the two modes of the El Ni˜no Southern Oscillation – canonical and Modoki – on the wind and hydro resources. Also, the Modoki El Ni˜no and the Modoki La Ni˜na phases have greater impact. The seasonal impact patterns corroborate these results. As the proportion of wind power increases in Australia’s energy mix, this negative covariation has implications for storage capacity of excess wind generation at short time scales and for generation system adequacy at the longer time scales.
format	article
author	Udaya Bhaskar Gunturu Willow Hallgren
author_facet	Udaya Bhaskar Gunturu Willow Hallgren
author_sort	Udaya Bhaskar Gunturu
title	Asynchrony of wind and hydropower resources in Australia
title_short	Asynchrony of wind and hydropower resources in Australia
title_full	Asynchrony of wind and hydropower resources in Australia
title_fullStr	Asynchrony of wind and hydropower resources in Australia
title_full_unstemmed	Asynchrony of wind and hydropower resources in Australia
title_sort	asynchrony of wind and hydropower resources in australia
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/3b985e5479404c049624d5b9f8fda789
work_keys_str_mv	AT udayabhaskargunturu asynchronyofwindandhydropowerresourcesinaustralia AT willowhallgren asynchronyofwindandhydropowerresourcesinaustralia
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Asynchrony of wind and hydropower resources in Australia

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