Can Desalination and Clean Energy Combined Help to Alleviate Global Water Scarcity?

The major present hindrance in using desalination to help alleviate global water scarcity is the cost of this technology, which, in turn is due to energy cost involved. This study examines historical trends in desalination and breaks up the cost of desalination into energy based and nonenergy based....

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Main Authors: Sood, A., Smakhtin, Vladimir U.
Format: Journal Article
Language:Inglés
Published: Wiley 2014
Subjects:
Online Access:https://hdl.handle.net/10568/52157
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author Sood, A.
Smakhtin, Vladimir U.
author_browse Smakhtin, Vladimir U.
Sood, A.
author_facet Sood, A.
Smakhtin, Vladimir U.
author_sort Sood, A.
collection Repository of Agricultural Research Outputs (CGSpace)
description The major present hindrance in using desalination to help alleviate global water scarcity is the cost of this technology, which, in turn is due to energy cost involved. This study examines historical trends in desalination and breaks up the cost of desalination into energy based and nonenergy based. It then develops the learning curves (relationship between cumulative production and market price) for desalination. Assuming that the photovoltaic (PV) technology will be the dominant form of energy used in the desalination process, the existing PV learning curve and desalination learning curve are combined to explore the viability of large-scale adoption of desalination in the future. The world has been divided into seven regions and it is assumed that water demand from desalinated water will be met only within the 100-km coastal belt. It is shown that, in most of the regions, other than sub-Saharan Africa, Central America, and South Asia (where water tariffs are low), the desalination (without considering energy) becomes viable by 2040. For PV technology, less than 1 million MW per annum growth is required till 2050 to make it affordable. Globally, desalination with renewable energy can become a viable option to replace domestic and industrial water demand in the 100-km coastal belt by 2050.
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spelling CGSpace521572025-11-13T10:38:51Z Can Desalination and Clean Energy Combined Help to Alleviate Global Water Scarcity? Sood, A. Smakhtin, Vladimir U. climate agriculture water desalting photovoltaic systems energy expenditure desalination sea water water scarcity water demand domestic water energy investment costs case studies The major present hindrance in using desalination to help alleviate global water scarcity is the cost of this technology, which, in turn is due to energy cost involved. This study examines historical trends in desalination and breaks up the cost of desalination into energy based and nonenergy based. It then develops the learning curves (relationship between cumulative production and market price) for desalination. Assuming that the photovoltaic (PV) technology will be the dominant form of energy used in the desalination process, the existing PV learning curve and desalination learning curve are combined to explore the viability of large-scale adoption of desalination in the future. The world has been divided into seven regions and it is assumed that water demand from desalinated water will be met only within the 100-km coastal belt. It is shown that, in most of the regions, other than sub-Saharan Africa, Central America, and South Asia (where water tariffs are low), the desalination (without considering energy) becomes viable by 2040. For PV technology, less than 1 million MW per annum growth is required till 2050 to make it affordable. Globally, desalination with renewable energy can become a viable option to replace domestic and industrial water demand in the 100-km coastal belt by 2050. 2014-10 2014-12-16T06:37:36Z 2014-12-16T06:37:36Z Journal Article https://hdl.handle.net/10568/52157 en Limited Access Wiley Sood, A., & Smakhtin, V. (2014). Can Desalination and Clean Energy Combined Help to Alleviate Global Water Scarcity? In JAWRA Journal of the American Water Resources Association (Vol. 50, Issue 5, pp. 1111–1123). Wiley. https://doi.org/10.1111/jawr.12174
spellingShingle climate
agriculture
water desalting
photovoltaic systems
energy expenditure
desalination
sea water
water scarcity
water demand
domestic water
energy
investment
costs
case studies
Sood, A.
Smakhtin, Vladimir U.
Can Desalination and Clean Energy Combined Help to Alleviate Global Water Scarcity?
title Can Desalination and Clean Energy Combined Help to Alleviate Global Water Scarcity?
title_full Can Desalination and Clean Energy Combined Help to Alleviate Global Water Scarcity?
title_fullStr Can Desalination and Clean Energy Combined Help to Alleviate Global Water Scarcity?
title_full_unstemmed Can Desalination and Clean Energy Combined Help to Alleviate Global Water Scarcity?
title_short Can Desalination and Clean Energy Combined Help to Alleviate Global Water Scarcity?
title_sort can desalination and clean energy combined help to alleviate global water scarcity
topic climate
agriculture
water desalting
photovoltaic systems
energy expenditure
desalination
sea water
water scarcity
water demand
domestic water
energy
investment
costs
case studies
url https://hdl.handle.net/10568/52157
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