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| Titel |
Portfolio optimisation for hydropower producers that balances riverine ecosystem protection and producer needs |
| VerfasserIn |
X. A. Yin, Z. F. Yang, C. L. Liu |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1027-5606
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| Digitales Dokument |
URL |
| Erschienen |
In: Hydrology and Earth System Sciences ; 18, no. 4 ; Nr. 18, no. 4 (2014-04-08), S.1359-1368 |
| Datensatznummer |
250120328
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| Publikation (Nr.) |
 copernicus.org/hess-18-1359-2014.pdf |
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| Zusammenfassung |
| In deregulated electricity markets, hydropower portfolio design has become
an essential task for producers. The previous research on hydropower
portfolio optimisation focused mainly on the maximisation of profits but did
not take into account riverine ecosystem protection. Although profit
maximisation is the major objective for producers in deregulated markets,
protection of riverine ecosystems must be incorporated into the process of
hydropower portfolio optimisation, especially against a background of
increasing attention to environmental protection and stronger opposition to
hydropower generation. This research seeks mainly to remind hydropower
producers of the requirement of river protection when they design portfolios
and help shift portfolio optimisation from economically oriented to
ecologically friendly. We establish a framework to determine the optimal
portfolio for a hydropower reservoir, accounting for both economic benefits
and ecological needs. In this framework, the degree of natural flow regime
alteration is adopted as a constraint on hydropower generation to protect
riverine ecosystems, and the maximisation of mean annual revenue is set as
the optimisation objective. The electricity volumes assigned in different
electricity submarkets are optimised by the noisy genetic algorithm. The
proposed framework is applied to China's Wangkuai Reservoir to test its
effectiveness. The results show that the new framework could help to design
eco-friendly portfolios that can ensure a planned profit and reduce
alteration of the natural flow regime. |
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