NDLI: A comprehensive view of global potential for hydro-generated electricity

Content Provider	Royal Society of Chemistry (RSC)
Author	Clarke, L. Calvin, K. Edmonds, J. Hejazi, M. Thomson, A. Li, H. Zhou, Y. Smith, S.
Copyright Year	2015
Abstract	In this study, we assess global hydropower potential using runoff and stream flow data, along with turbine technology performance, cost assumptions, and consideration of protected areas. The results provide the first comprehensive quantification of global hydropower potential including gross, technical, economic, and exploitable estimates. Total global potential of gross, technical, economic, and exploitable hydropower are estimated to be approximately 128, 26, 21, and 16 petawatt hours per year, respectively. The economic and exploitable potential of hydropower are calculated at less than 9 cents per kW h. We find that hydropower has the potential to supply a significant portion of world energy needs, although this potential varies substantially by region. Globally, exploitable hydropower potential is comparable to total electricity demand in 2005. Hydropower plays different roles in each country owing to regional variation in potential relative to electricity demand. In some countries such as the Congo, there is sufficient hydropower potential (>10 times) to meet all electricity demands, while in other countries such as United Kingdom, hydropower potential can only accommodate a small portion (<3%) of total demand. A sensitivity analysis indicates that hydropower estimates are sensitive to a number of parameters: design flow (varying by −10% to +0% at less than 9 cents per kW h), cost assumptions (by −35% to +12%), turbine efficiency (by −40% to +20%), stream flow (by −35% to +35%), fixed charge rate (by −15% to 10%), and protected land (by −15% to 20%). This sensitivity analysis emphasizes the reliable role of hydropower for future energy systems, when compared to other renewable energy resources with larger uncertainty in their future potentials.
Starting Page	2622
Ending Page	2633
Page Count	12
File Format	HTM / HTML PDF
ISSN	17545692
Volume Number	8
Issue Number	9
Journal	Energy & Environmental Science
DOI	10.1039/c5ee00888c
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Congo United Kingdom Hydropower Wind turbine Watt Congo Basin Sensitivity analysis Renewable energy
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Pollution Renewable Energy, Sustainability and the Environment Nuclear Energy and Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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