Nexus of Food, Energy, and Water

Ahuja, Satinder

doi:10.1016/b978-0-12-800211-7.00001-6

Cited by 9 publications

(3 citation statements)

References 2 publications

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“…Even though the nexus is a physical system, adopting a “nexus approach” or “nexus thinking” indicates that the nexus is also a heuristic and analytical tool for conceptualizing problems and solutions from a complex systems perspective. Focus on the interconnections, interrelations and interdependencies among nexus sectors provides the foundation to develop coherent and effective policy and planning strategies (Ahuja, 2015; Finley & Seiber, 2014; Lee, 2016; Machell et al., 2015; Pittock et al., 2015; Ringler et al., 2013; Von Braun & Mirzabaev, 2016; Wicaksono et al., 2017; Yillia, 2016). Addressing interconnections clarifies how drivers of change simultaneously and differentially impact system and sectoral behaviors and responses (Y. Chang et al., 2016; de Fraiture et al., 2014; McGrane et al., 2019; Olsson, 2013), and it improves governance efficacy (de Loë & Patterson, 2017) through better vertical (between sector) and horizontal (within sector) coordination (Kurian et al., 2018).…”

Section: The Nexus: An Evolving Picture?mentioning

confidence: 99%

Appraising the Water‐Energy‐Food Nexus From a Sustainable Development Perspective: A Maturing Paradigm?

et al. 2022

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The water‐energy‐food (WEF) nexus is a prominent approach for addressing today's sustainable development challenges. In our critical appraisal of the WEF, covering different approaches, drivers, enablers, and applications, we emphasize the situation across the Global South (Africa, Asia, Latin America and the Caribbean). Here, WEF research covers at least 23 focal domains. We find that the nexus is still a maturing paradigm primarily rooted in a physical and natural sciences framing, which is itself embedded in a neoliberal securities narrative. While providing insights and tools to address the systemic interdependencies between resource sectors whose exploitation, degradation, and sub‐optimal management contribute to (un)sustainable development, there is still insufficient engagement with social, political, and economic dimensions. Progress related to climate, urbanization, and resource consumption is encouraging, but while governance and finance are central enablers of current and future nexus systems, gaps remain in relation to implementation and operationalization. Harnessing the nexus for sustainable development across the Global South means recognizing that it is more than a biophysical system, but also a multi‐scale complex of people, institutions, and infrastructure, affected by history and context. Addressing this complexity requires alternative and possibly challenging perspectives to counter dominant narratives, and manage problems associated with policy integration, trade‐offs, and winners and losers. We outline 10 emergent research areas that we think can contribute to this endeavor and enable the nexus to be a stronger policy force.

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Section: The Nexus: An Evolving Picture?mentioning

confidence: 99%

Appraising the Water‐Energy‐Food Nexus From a Sustainable Development Perspective: A Maturing Paradigm?

et al. 2022

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“…The majority of current transportation technologies rely on fossil fuels as their predominant energy source [1]. Fossil fuels, however, are a nonrenewable resource whose processing and combustion cause environmental pollution [2][3][4]. As such, there is currently growing interest in alternative energy sources which are clean, renewable, and affordable.…”

Section: Introductionmentioning

confidence: 99%

A Bottom-Up Approach to Lithium-Ion Battery Cost Modeling with a Focus on Cathode Active Materials

2019

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In this study, we develop a method for calculating electric vehicle lithium-ion battery pack performance and cost. To begin, we construct a model allowing for calculation of cell performance and material cost using a bottom-up approach starting with real-world material costs. It thus provides a supplement to existing models, which often begin with fixed cathode active material (CAM) prices that do not reflect raw metal price fluctuations. We collect and display data from the London Metal Exchange to show that such metal prices, in this case specifically cobalt and nickel, do indeed fluctuate and cannot be assumed to remain static or decrease consistently. We input this data into our model, which allows for a visualization of the effects of these metal price fluctuations on the prices of the CAMs. CAMs analyzed include various lithium transition metal oxide-type layered oxide (NMC and NCA) technologies, as well as cubic spinel oxide (LMO), high voltage spinel oxide (LNMO), and lithium metal phosphate (LFP). The calculated CAM costs are combined with additional cell component costs in order to calculate full cell costs, which are in turn scaled up to full battery pack costs. Economies of scale are accounted for separately for each cost fraction.

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“…However, the main challenge of photovoltaic is the cost/ watt ratio of the active material (mostly c-Si). 30%-40% of this cost/watt ratio is due to the silicon substrate [1][2][3][4]. Thin silicon and thin films like a-Si:H, µc-Si, CdTe, CIGS are potential alternative materials to reduce the cost/watt ratio, but they suffer from poor absorption compared to thick silicon wafers.…”

Section: Introductionmentioning

confidence: 99%

Light trapping in a-Si/c-Si heterojunction solar cells by embedded ITO nanoparticles at rear surface

Dhar¹,

Mandal²,

Mitra³

et al. 2017

J. Phys. D: Appl. Phys.

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The advantages of the amorphous silicon (a-Si)/crystalline silicon (c-Si) hetero junction technology are low temperature (<200 °C) processing and fewer process steps to fabricate the device. In this work, we used indium tin oxide (ITO) nanoparticles embedded in amorphous silicon material at the rear side of the crystalline wafer. The nanoparticles were embedded in silicon to have higher scattering efficiency, as has been established by simulation studies. It has been shown that significant photocurrent enhancements (32.8 mA cm−2 to 35.1 mA cm−2) are achieved because of high scattering and coupling efficiency of the embedded nanoparticles into the silicon device, leading to an increase in efficiency from 13.74% to 15.22%. In addition, we have observed a small increase in open circuit voltage. This may be due to the surface passivation during the ITO nanoparticle formation with hydrogen plasma treatment. We also support our experimental results by simulation, with the help of a commercial finite-difference time-domain (FDTD) software solution.

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Nexus of Food, Energy, and Water

Cited by 9 publications

References 2 publications

Appraising the Water‐Energy‐Food Nexus From a Sustainable Development Perspective: A Maturing Paradigm?

Appraising the Water‐Energy‐Food Nexus From a Sustainable Development Perspective: A Maturing Paradigm?

A Bottom-Up Approach to Lithium-Ion Battery Cost Modeling with a Focus on Cathode Active Materials

Light trapping in a-Si/c-Si heterojunction solar cells by embedded ITO nanoparticles at rear surface

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