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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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Governance

WEF Nexus Research // Solar Energy Farming as a Development Innovation for Vulnerable Water Basins

By Mohammad Al-Saidi and Nisreen Lahham. This article evaluates a project from the Azraq Basin in Jordan, and presents similar international experiences, particularly from India. It assesses solar energy farming as an innovation from a water-energy-food nexus perspective.

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Resource

Learning // The Nexus Game

The Nexus Game gives participants a unique opportunity to get an insight into the challenges of water management for producing energy and food, fulfilling the needs of the population, and sustaining environmental flows. The aim of the game is to provide an opportunity to practice how different water management policies can lead to the sustainable development of society in harmony with Nature.

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Research

Blog // What can Transdisciplinarity give back to Communities?

This article presents a research project conducted by the STEPS Centre, using the WEFE Nexus as a conceptual tool for transdisciplinary engagement through urban gardening in the peripheral area Novo Recreio in north Guarulhos, part of the Metropolitan Region of São Paulo, Brazil. It shows the notion of the WEFE Nexus has the potential to bring people together across different siloes, organisations, identities, institutions, levels and sectors. But could it contribute to wider struggles against...

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