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Hydropower

Nexus in Asia // Assessment of the Potential for Developing Mini/Micro Hydropower: A Case Study in Beppu City, Japan

By By Masahiko Fujii, Soichiro Tanabe, Makoto Yamada, Taketoshi Mishima, et al. This study aims to provide quantitative guidelines necessary for capacity building among various stakeholders to minimize water-energy conflicts in developing mini/micro hydropower (MHP), a baseload renewable energy that is socially necessary, not only to reduce greenhouse gas emissions but also to vitalize local economies by creating jobs related to MHP operations. Using three different methods to calculate river water levels and discharges, the potential power generation by MHP was estimated for six rivers in Beppu City.

Our results show that installation of MHP facilities can provide stable electricity for tens to hundreds of residents in local communities along the rivers. However, the results are based on the existing infrastructure, such as roads and electric lines. This means that greater potential is expected if additional infrastructures are built to develop further MHP facilities. On the other hand, in Japan, river laws and irrigation right regulations currently restrict new entry by actors to rivers. Therefore, to further develop MHP, deregulation of the existing laws relevant to rivers and further incentives for business owners of MHP facilities, along with the current feed-in tariffs, are required. Meanwhile, possible influences to riverine ecosystems when installing new MHP facilities should also be taken into account.

The paper is part of the special issue of the Journal of Hydrology.

Download

ScienceDirect website (open access)

Published

December 2015

In

Journal of Hydrology: Regional StudiesVolume 11, June 2017, Pages 107-116

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Solar-powered Irrigation Systems (SPIS)

JRC Technical Report // Water-Energy-Food Nexus Interactions Assessment: Renewable Energy Sources to support Water Access and Quality in West Africa

By Kougias I., Szabó S., Scarlat N., Monforti F., Banja M., Bódis K., Moner-Girona M. Mitigating the big challenges of access to clean water, energy and poverty in Africa requires integrated solutions. The analysis of issues related to the water, energy, food and the ecosystem through a nexus approach, has attracted the interest of scientists, policy-makers and the private sector. The present Technical Report examines the potential of such an approach to create beneficial synergies between the...

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Modelling and Assessment

Holistic Water-Energy-Food Nexus for Guiding Water Resources Planning // Matagorda County, Texas Case

By Muhammed I. Kulat, Rabi H. Mohtar and Francisco Olivera. The authors developed a holistic framework to provide sustainable scenarios that include feasible infrastructure interventions. The framework focuses on water and associated links with other resources, includes a unique analytic tool for quantifying scenarios, and ultimately produces a sustainability analysis of each scenario. Optimal scenarios are offered that consider site-specific dynamic resource interlinkages. The WEF nexus model...

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Solar-powered Irrigation Systems (SPIS)

Pompage Solaire // Investigation de l’impact des installations de pompage solaire sur la consommation d’eau et la situation socio-économique d’un agriculteur dans 3 zones pilotes au Maroc

Cette étude vise à mieux comprendre comment la conversion au pompage solaire peut influencer la consommation d'eau et les conditions socio-économiques d'un agriculteur marocain par rapport aux autres systèmes de pompage d'eau. L'étude s'est appuyée sur une enquête menée auprès de 150 agriculteurs répartis sur les territoires suivants 3 zones distinctes : la zone de Marrakech, la zone de Midelt et la zone de Tata. L'étude a été réalisée par le projet GIZ Sustainable Energy for Food - Powering...

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