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Modelling and Assessment

The Nexus Concept Integrating Energy and Resource Efficiency for Policy Assessments // A Comparative Approach from Three Case

By Floor Brouwer, Lydia Vamvakeridou-Lyroudia, Eva Alexandri, Ingrida Bremere, Matthew Griffey, Vincent Linderhof. As the world increasingly runs up against physical constraints of energy, land, water, and food, there is a growing role for policy to reduce environmental pressures without adversely affecting increases in prosperity. There is therefore a need for policy makers to understand the potential trade-offs and/or synergies between the uses of these different resources, i.e., to encompass the water–energy–food–land nexus for policy and decision making, where it is no longer possible to ignore the limitations in land availability and its links to other natural resources. This paper proposes a modelling approach to help to assess various policies from a nexus perspective.

The global macro-econometric model (E3ME) explores a low-carbon transition through different sets of energy and climate policies applied at different spatial scales. The limitations of the E3ME model in assessing nexus interactions are discussed. The paper also argues and offers an explanation for why no single traditional or classic model has the potential to cover all parts of the nexus in a satisfactory way, including feedback loops and interactions between nexus components. Other approaches and methodologies suitable for complexity science modelling (e.g., system dynamics modelling) are proposed, providing a possible means to capture the holistic approach of the nexus in policy-making by including causal and feedback loops to the model components.

Based on three case studies in Europe, the paper clarifies the different steps (from policy design towards conceptual model) in modelling the nexus linkages and interactions at the national and regional levels. One case study (The Netherlands) considers national low-carbon transitions at national level. Two other case studies (Latvia and southwest UK) focus on how renewable energy may impact the nexus. A framework is proposed for the generic application of quantitative modelling approaches to assess nexus linkages. The value of the nexus concept for the efficient use of resources is demonstrated, and recommendations for policies supporting the nexus are presented.

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MDPI website (open access)

Published

December 2018

In

Sustainability 2018, 10 (12), 4860
This article belongs to the Special Issue Sustainable Energy Systems: From Primary to End-Use.

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SDGs

Publication // The Water-Food-Energy Nexus: Insights into resilient development

By SAB Miller and WWF (World Wildlife Fund). This collaborative report looks at 16 countries or states, comparing the ways in which their development patterns have managed their different mixes of resources and different capacities to make use of those resources.

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Ecosystems / WEFE Nexus

Publication // The Development of the Water-Energy-Food Nexus as a Framework for Achieving Resource Security: A Review

By Gareth B. Simpson and Graham P. W. Jewitt. This paper presents a study of the evolution of the water-energy-food (WEF) nexus since its rise to prominence in policy and development discourses in 2011. Drawing from an extensive review of published literature, the paper presents various interpretations of the concept while also considering the novelty of the WEF nexus.

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Capacity Building

Publication // A 40-year review of food–energy–water nexus literature and its application to the urban scale

By Newell, J. P., Goldstein, B., & Foster, A. (2019). What research exists to date on the FEW nexus? How have scholars conceptualized these interactions at the urban scale? What are some promising approaches? Where are the research gaps? To answer these questions, this paper conducts a quantitative review of the academic literature on the FEW nexus (1399 publications) over more than four decades (1973–2017), followed by in-depth analysis of the most influential papers using an evaluation matrix...

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