Assessing the future of global energy-for-water

This study incorporates the energy demands of water abstraction, treatment, distribution, and post-use wastewater treatment into the Global Change Analysis Model, an integrated human-Earth systems model, and analyzes a range of scenarios that estimate the future evolution of this demand of energy. T...

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Bibliographic Details
Published in:Environmental research letters 2021-02, Vol.16 (2), p.24031
Main Authors: Kyle, Page, Hejazi, Mohamad, Kim, Son, Patel, Pralit, Graham, Neal, Liu, Yaling
Format: Article
Language:English
Subjects:
Electric power
Energy
Energy consumption
energy-for-water
ENVIRONMENTAL SCIENCES
integrated assessment modeling
Model testing
multisector dynamics
Statistical analysis
Sustainable development
sustainable development goals
Waste to energy
Wastewater irrigation
Wastewater treatment
water and energy nexus
Water quality
Water treatment
water-energy nexus
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Summary:This study incorporates the energy demands of water abstraction, treatment, distribution, and post-use wastewater treatment into the Global Change Analysis Model, an integrated human-Earth systems model, and analyzes a range of scenarios that estimate the future evolution of this demand of energy. The study complements research on historical and future water-for-energy, and builds on bottom-up estimates of historical energy-for-water (EFW), by integrating EFW into nation-level energy statistics, where EFW is normally categorized with other energy use in the commercial and public services, industrial, agricultural, and/or electric power sectors. This development allows more resolved projections of future energy demands in general, and in this study, allows for assessment of the energy implications of improvements in water access and water quality that are consistent with the sustainable development goals (SDGs). In our baseline scenario, EFW increases by 2.6 times from 2015 to 2050, and in the SDG scenario with enhanced water access, standards for treatment of wastewater, and irrigation, the consequent EFW demands quadruple from 2015 to 2050. The study highlights the value of integrated, multi-sector analysis in quantifying the future impacts of the SDGs and other aspirational targets.
ISSN:1748-9326
1748-9326
DOI:10.1088/1748-9326/abd8a9