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Dr. Esmaeil Ahmadi
Kyoto University, Graduate School of Energy Science

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0 Energy Sector
0 Nexus
0 System Thinking
0 Sustainability Transition
0 Water Sector

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Journal article
Published: 20 August 2020 in Renewable Energy
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This study investigates the role of the water-energy-nexus in transition plans to achieve a future system with a higher share of renewable energy and lower excess water extraction. Applying a novel nexus approach, an interactive multi-period model is proposed to study the synergies of sustainable water and energy supply planning, taking into account operational flexibility of the water sector and its compatibility with inherent intermittency of variable renewable resources. For investigating synergies in designing both energy systems and water systems together, the path of technology cost reduction is assumed to be a function of experience and knowledge and estimated using two-factor learning curves. The learning-by-searching rate was higher than the learning-by-doing rate for utility-scale wind, photovoltaic and reverse osmosis desalination technologies, ensuring research & development investment can play a chief role in the development of these industries. The levelized cost and capacity factor of photovoltaic and wind resources in the Middle East were calculated using data from 81 projects. The results showed that planning the water and energy sectors as endogenous parts one integrated system brings potential synergies. The levelized cost of variable renewable energy decreased by 20% and the levelized cost of desalinated water dropped 4%.

ACS Style

Esmaeil Ahmadi; Benjamin McLellan; Tetsuo Tezuka. The economic synergies of modelling the renewable energy-water nexus towards sustainability. Renewable Energy 2020, 162, 1347 -1366.

AMA Style

Esmaeil Ahmadi, Benjamin McLellan, Tetsuo Tezuka. The economic synergies of modelling the renewable energy-water nexus towards sustainability. Renewable Energy. 2020; 162 ():1347-1366.

Chicago/Turabian Style

Esmaeil Ahmadi; Benjamin McLellan; Tetsuo Tezuka. 2020. "The economic synergies of modelling the renewable energy-water nexus towards sustainability." Renewable Energy 162, no. : 1347-1366.

Journal article
Published: 28 June 2020 in Sustainability
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Desalination is becoming a practical option to meet water demand in an increasing number of locations that are facing water scarcity. Currently, more than 150 countries in the world are already using desalination technologies, which account for about one percent of the world’s drinking water. Although for specific regions, desalination is the only feasible solution to close the supply–demand gap (for example the production of desalinated seawater in the Middle East is predicted to rise almost fourteen-fold by 2040), the sustainability of desalination systems is still remarkably under question. This review aims first to investigate the technical and economic trends and environmental and social aspects of desalination systems and then, in the second stage, to give an overview of the role of renewable energy technologies in the sustainability of the future water systems with an increasing share of desalination.

ACS Style

Esmaeil Ahmadi; Benjamin McLellan; Behnam Mohammadi-Ivatloo; Tetsuo Tezuka. The Role of Renewable Energy Resources in Sustainability of Water Desalination as a Potential Fresh-Water Source: An Updated Review. Sustainability 2020, 12, 5233 .

AMA Style

Esmaeil Ahmadi, Benjamin McLellan, Behnam Mohammadi-Ivatloo, Tetsuo Tezuka. The Role of Renewable Energy Resources in Sustainability of Water Desalination as a Potential Fresh-Water Source: An Updated Review. Sustainability. 2020; 12 (13):5233.

Chicago/Turabian Style

Esmaeil Ahmadi; Benjamin McLellan; Behnam Mohammadi-Ivatloo; Tetsuo Tezuka. 2020. "The Role of Renewable Energy Resources in Sustainability of Water Desalination as a Potential Fresh-Water Source: An Updated Review." Sustainability 12, no. 13: 5233.

Journal article
Published: 22 June 2020 in Sustainability
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This study develops a mixed-integer linear programming (MILP) model for the optimal and stochastic operation scheduling of smart buildings. The aim of this study is to match the electricity demand with the intermittent solar-based renewable resources profile and to minimize the energy cost. The main contribution of the proposed model addresses uncertainties of the thermal load in smart buildings by considering detailed types of loads such as hot water, heating, and ventilation loads. In smart grids, buildings are no longer passive consumers. They are controllable loads, which can be used for demand-side energy management. Smart homes, as a domain of Internet of Things (IoT), enable energy systems of the buildings to operate as an active load in smart grids. The proposed formulation is cast as a stochastic MILP model for a 24-h horizon in order to minimize the total energy cost. In this study, Monte Carlo simulation technique is used to generate 1000 random scenarios for two environmental factors: the outdoor temperature, and solar radiation. Therefore in the proposed model, the thermal load, the output power of the photovoltaic panel, solar collector power generation, and electricity load become stochastic parameters. The proposed model results in an energy cost-saving of 20%, and a decrease of the peak electricity demand from 7.6 KWh to 4.2 KWh.

ACS Style

Esmaeil Ahmadi; Younes Noorollahi; Behnam Mohammadi-Ivatloo; Amjad Anvari-Moghaddam. Stochastic Operation of a Solar-Powered Smart Home: Capturing Thermal Load Uncertainties. Sustainability 2020, 12, 5089 .

AMA Style

Esmaeil Ahmadi, Younes Noorollahi, Behnam Mohammadi-Ivatloo, Amjad Anvari-Moghaddam. Stochastic Operation of a Solar-Powered Smart Home: Capturing Thermal Load Uncertainties. Sustainability. 2020; 12 (12):5089.

Chicago/Turabian Style

Esmaeil Ahmadi; Younes Noorollahi; Behnam Mohammadi-Ivatloo; Amjad Anvari-Moghaddam. 2020. "Stochastic Operation of a Solar-Powered Smart Home: Capturing Thermal Load Uncertainties." Sustainability 12, no. 12: 5089.

Journal article
Published: 24 May 2020 in Sustainability
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This study aims to reveal the economic, technical, and environmental impacts of different system configurations (centralized or decentralized, components, and technologies) on transition plans to achieve a higher share of renewable energy and desalination supplies for regions facing water scarcity. The main contribution of this research is the comparative evaluation of on-grid decentralized or distributed renewable-powered desalination systems for sustainable water and energy supply planning. Applying a novel nexus approach, an interactive multi-period planning model is developed to highlight synergies and to identify conflicts of planning both energy and water sectors at the same time as endogenous subsystems of one overall system. For studying these synergies in this study, the pace of technology deployment and the path of decline in overall costs are assumed to be a function of experience and knowledge as two-factor learning curves. Using data from 81 projects, the levelized cost and capacity factor of utility-scale photovoltaic and wind supplies in the Middle East were calculated. The results indicate that a scenario with a decentralized water sector and renewable-powered multiple-effect distillation technology has the best overall performance among the proposed scenarios.

ACS Style

Esmaeil Ahmadi; Benjamin McLellan; Seiichi Ogata; Behnam Mohammadi-Ivatloo; Tetsuo Tezuka. An Integrated Planning Framework for Sustainable Water and Energy Supply. Sustainability 2020, 12, 4295 .

AMA Style

Esmaeil Ahmadi, Benjamin McLellan, Seiichi Ogata, Behnam Mohammadi-Ivatloo, Tetsuo Tezuka. An Integrated Planning Framework for Sustainable Water and Energy Supply. Sustainability. 2020; 12 (10):4295.

Chicago/Turabian Style

Esmaeil Ahmadi; Benjamin McLellan; Seiichi Ogata; Behnam Mohammadi-Ivatloo; Tetsuo Tezuka. 2020. "An Integrated Planning Framework for Sustainable Water and Energy Supply." Sustainability 12, no. 10: 4295.

Review
Published: 12 October 2018 in Geothermics
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There is broad consensus that renewable energies have to play a more critical role in our future energy society. A suitable policy and development strategy plays a great role in the status of the renewable energy fraction in the total energy supply of the countries. In this paper, the status of two-decade geothermal energy development in Iran is summarized. A brief of the geothermal activities in Iran is pointed and the benefits of the geothermal developments in National Development Plan (NDP) are analyzed. There is a wide range of managerial, technical, and regulatory challenges preventing the logistic progress of the geothermal projects in the world in general and some challenges in the first (NW Sabalan) geothermal project in Iran, in particular. The main disputes and obstacles in the first geothermal project are lack of national and local legislation, poor management of human resources, and inability in technology transfer. To attain a suitable geothermal resource development one can apply policy changes by establishing new national and local legislation, human resource development by internationally training the scientists and engineers, and persuading them to continue working in geothermal projects.

ACS Style

Younes Noorollahi; Muhammad Salman Shabbir; Ahmed F. Siddiqi; Lubov K. Ilyashenko; Esmaeil Ahmadi. Review of two decade geothermal energy development in Iran, benefits, challenges, and future policy. Geothermics 2018, 77, 257 -266.

AMA Style

Younes Noorollahi, Muhammad Salman Shabbir, Ahmed F. Siddiqi, Lubov K. Ilyashenko, Esmaeil Ahmadi. Review of two decade geothermal energy development in Iran, benefits, challenges, and future policy. Geothermics. 2018; 77 ():257-266.

Chicago/Turabian Style

Younes Noorollahi; Muhammad Salman Shabbir; Ahmed F. Siddiqi; Lubov K. Ilyashenko; Esmaeil Ahmadi. 2018. "Review of two decade geothermal energy development in Iran, benefits, challenges, and future policy." Geothermics 77, no. : 257-266.

Journal article
Published: 01 March 2018 in International Journal of Electrical Power & Energy Systems
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ACS Style

Mohammad Mohammadi; Roghayeh Ghasempour; Fatemeh Razi Astaraei; Esmaeil Ahmadi; Armin Aligholian; Ashkan Toopshekan. Optimal planning of renewable energy resource for a residential house considering economic and reliability criteria. International Journal of Electrical Power & Energy Systems 2018, 96, 261 -273.

AMA Style

Mohammad Mohammadi, Roghayeh Ghasempour, Fatemeh Razi Astaraei, Esmaeil Ahmadi, Armin Aligholian, Ashkan Toopshekan. Optimal planning of renewable energy resource for a residential house considering economic and reliability criteria. International Journal of Electrical Power & Energy Systems. 2018; 96 ():261-273.

Chicago/Turabian Style

Mohammad Mohammadi; Roghayeh Ghasempour; Fatemeh Razi Astaraei; Esmaeil Ahmadi; Armin Aligholian; Ashkan Toopshekan. 2018. "Optimal planning of renewable energy resource for a residential house considering economic and reliability criteria." International Journal of Electrical Power & Energy Systems 96, no. : 261-273.

Journal article
Published: 01 February 2018 in Sustainable Energy Technologies and Assessments
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ACS Style

Mehdi Mehrpooya; Mohammad Mohammadi; Esmaeil Ahmadi. Techno-economic-environmental study of hybrid power supply system: A case study in Iran. Sustainable Energy Technologies and Assessments 2018, 25, 1 -10.

AMA Style

Mehdi Mehrpooya, Mohammad Mohammadi, Esmaeil Ahmadi. Techno-economic-environmental study of hybrid power supply system: A case study in Iran. Sustainable Energy Technologies and Assessments. 2018; 25 ():1-10.

Chicago/Turabian Style

Mehdi Mehrpooya; Mohammad Mohammadi; Esmaeil Ahmadi. 2018. "Techno-economic-environmental study of hybrid power supply system: A case study in Iran." Sustainable Energy Technologies and Assessments 25, no. : 1-10.