Solar pumps and South Asia’s energy-groundwater nexus: exploring implications and reimagining its future

South Asia’s groundwater economy stands at the threshold of a revolution in adoption of solar irrigation pumps (SIPs). This has potential to unlock the region’s perverse energy-groundwater nexus. In much of South Asia, the price of energy used in irrigation, the only surrogate for water price, fails...

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Main Authors: Tushaar Shah, Abhishek Rajan, Gyan Prakash Rai, Shilp Verma, Neha Durga
Format: Article
Language:English
Published: IOP Publishing 2018-01-01
Series:Environmental Research Letters
Subjects:
Online Access:https://doi.org/10.1088/1748-9326/aae53f
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author Tushaar Shah
Abhishek Rajan
Gyan Prakash Rai
Shilp Verma
Neha Durga
author_facet Tushaar Shah
Abhishek Rajan
Gyan Prakash Rai
Shilp Verma
Neha Durga
author_sort Tushaar Shah
collection DOAJ
description South Asia’s groundwater economy stands at the threshold of a revolution in adoption of solar irrigation pumps (SIPs). This has potential to unlock the region’s perverse energy-groundwater nexus. In much of South Asia, the price of energy used in irrigation, the only surrogate for water price, fails to signal the abundance or scarcity of groundwater, resulting in myriad distortions. We analyse these in South Asia’s eight distinct energy-groundwater interaction settings. We then explore SIP promotion policies to ease pressure on scarce groundwater in South Asia’s ‘groundwater depletion zone’ and accelerate groundwater irrigation for poverty reduction in its ‘groundwater abundance zone’.
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spelling doaj.art-eca09746f4874a9191655e88651f6f8b2023-08-09T14:38:31ZengIOP PublishingEnvironmental Research Letters1748-93262018-01-01131111500310.1088/1748-9326/aae53fSolar pumps and South Asia’s energy-groundwater nexus: exploring implications and reimagining its futureTushaar Shah0https://orcid.org/0000-0002-0565-8464Abhishek Rajan1Gyan Prakash Rai2Shilp Verma3Neha Durga4International Water Management Institute, Colombo, Sri LankaInternational Water Management Institute, Colombo, Sri LankaInternational Water Management Institute, Colombo, Sri LankaInternational Water Management Institute, Colombo, Sri LankaInternational Water Management Institute, Colombo, Sri LankaSouth Asia’s groundwater economy stands at the threshold of a revolution in adoption of solar irrigation pumps (SIPs). This has potential to unlock the region’s perverse energy-groundwater nexus. In much of South Asia, the price of energy used in irrigation, the only surrogate for water price, fails to signal the abundance or scarcity of groundwater, resulting in myriad distortions. We analyse these in South Asia’s eight distinct energy-groundwater interaction settings. We then explore SIP promotion policies to ease pressure on scarce groundwater in South Asia’s ‘groundwater depletion zone’ and accelerate groundwater irrigation for poverty reduction in its ‘groundwater abundance zone’.https://doi.org/10.1088/1748-9326/aae53fgroundwater governanceenergy-irrigation nexusconjunctive management of surface and groundwatergroundwaterSouth Asia
spellingShingle Tushaar Shah
Abhishek Rajan
Gyan Prakash Rai
Shilp Verma
Neha Durga
Solar pumps and South Asia’s energy-groundwater nexus: exploring implications and reimagining its future
Environmental Research Letters
groundwater governance
energy-irrigation nexus
conjunctive management of surface and groundwater
groundwater
South Asia
title Solar pumps and South Asia’s energy-groundwater nexus: exploring implications and reimagining its future
title_full Solar pumps and South Asia’s energy-groundwater nexus: exploring implications and reimagining its future
title_fullStr Solar pumps and South Asia’s energy-groundwater nexus: exploring implications and reimagining its future
title_full_unstemmed Solar pumps and South Asia’s energy-groundwater nexus: exploring implications and reimagining its future
title_short Solar pumps and South Asia’s energy-groundwater nexus: exploring implications and reimagining its future
title_sort solar pumps and south asia s energy groundwater nexus exploring implications and reimagining its future
topic groundwater governance
energy-irrigation nexus
conjunctive management of surface and groundwater
groundwater
South Asia
url https://doi.org/10.1088/1748-9326/aae53f
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AT gyanprakashrai solarpumpsandsouthasiasenergygroundwaternexusexploringimplicationsandreimaginingitsfuture
AT shilpverma solarpumpsandsouthasiasenergygroundwaternexusexploringimplicationsandreimaginingitsfuture
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