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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.

Download

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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Solar-powered Irrigation Systems (SPIS)

Nexus Publicación // Manual de Capacitación Equipo Móvil de Bombeo Solar

Desarrollar y fortalecer capacidades de asesoramiento técnico y formulación de proyectos de agua, energía solar y producción de alimentos, en personal técnico del sector público y privado, así como en familias campesinas mediante su formación práctica utilizando un Equipo Móvil de Bombeo Solar demostrativo. La publicación1 de la Caja de herramientas de sistemas de riego solar ha sido posible gracias al apoyo brindado por la iniciativa mundial PAEGC. En 2012, la Agencia de los Estados Unidos para...

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Research

WEF Nexus Publication // Applying the Water-Energy-Food Nexus Approach to Catalyse Transformational Change in Africa

RES4Africa Foundation’s new study carried out in collaboration with Open Economics, looks at a WEF nexus project in rural Tanzania integrating hydro-powered mini-grid and agri-business usages that distributes water, power and food services to the surrounding communities. The aim of this study was to evaluate the effects that the innovative Nexus project can have on a specific area. In doing this, a microeconomic impact assessment was developed to evaluate economic, social and environmental costs...

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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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