期刊
RENEWABLE ENERGY
卷 174, 期 -, 页码 654-665出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.renene.2021.04.109
关键词
Hydrokinetic; Resource assessment; Hydropower; Energy poverty; Global assessment; Renewable energy
资金
- Knowledge Economy Skills Scholarships (KESS 2)
- Welsh Government's European Social Fund (ESF) convergence programme for West Wales and the Valleys
- Supercomputing Wales project - European Regional Development Fund (ERDF) via Welsh Government
- SEEC (Smart Efficient Energy Centre) at Bangor University - European Regional Development Fund (ERDF)
- EPSRC [EP/R034664/1] Funding Source: UKRI
This study aims to determine the theoretical global riverine hydrokinetic resource and finds that China, Russia, and Brazil have the greatest potential, while Bhutan, Nepal, and Tajikistan also show great potential. Hydrokinetic energy conversion can benefit isolated communities and has the potential to complement other forms of renewable energy technology to reduce energy poverty.
Hydrokinetic energy conversion refers to the conversion of kinetic energy in moving water to electricity. It offers an alternative to conventional hydropower, with benefits of modularity and scalability, in addition to being environmentally and socially less impactful. This study aims to determine the theoretical global riverine hydrokinetic resource. We use a 35 year modelled daily discharge data set and vectorised representation of rivers, with near-global coverage and suitable spatiotemporal resolution, to determine the mean annual energy yield of 2.94 million river reaches. The mean global resource (excluding Greenland) is estimated to be 58 400 +/- 109 TWh yr(-1) (6.660 +/- 0.012 TW). Consideration of global spatial distribution, by river reach, illustrates regional variation and shows a tendency for potential to be concentrated along major rivers and in areas of significant elevation change. China, Russia and Brazil are found to be the countries with the greatest potential. After normalisation by total river length, Bhutan, Nepal and Tajikistan also show great potential. Hydrokinetic energy conversion can benefit isolated communities currently without access to electricity. We consider how the specific advantages of this particular technology have the potential to be combined with and complement other established forms of renewable energy technology, providing the means to support the reduction of energy poverty. (C) 2021 The Author(s). Published by Elsevier Ltd.
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