Article
Green & Sustainable Science & Technology
Mehdi Jahangiri, Mostafa Rezaei, Ali Mostafaeipour, Afsaneh Raiesi Goojani, Hamed Saghaei, Seyyed Jalaladdin Hosseini Dehshiri, Seyyed Shahabaddin Hosseini Dehshiri
Summary: This study evaluates the potential of all capital cities of Iran in terms of solar-based hydrogen production and ranks them using MCDM methods. The results indicate that Yasuj is the most suitable city for solar-based hydrogen production.
Article
Infectious Diseases
Kidu Gidey, Abadi Mache, Berhane Yohannes Hailu, Solomon Weldegebreal Asgedom, Segen Gebremeskel Tassew, Yirga Legesse Nirayo
Summary: Ethiopia has a high burden of HIV, but studies on the effectiveness of second-line antiretroviral therapy (ART) are scarce. This study evaluated treatment outcomes and predictors of unfavorable outcomes in HIV patients receiving second-line ART in two hospitals. The incidence rate of unfavorable outcomes was high and low body mass index (BMI) and low CD4 count were significant predictors.
INFECTION AND DRUG RESISTANCE
(2023)
Article
Economics
Joshua Mugisha, Mike Arasa Ratemo, Bienvenu Christian Bunani Keza, Hayriye Kahveci
Summary: Despite having the world's lowest electrification rate, Africa is working towards providing a brighter future for its citizens through global renewable energy agencies and international financing. However, the challenge lies in supplying electricity to rural populations at a reasonable tariff, with over 770 million people lacking access to electricity on the continent.
Article
Green & Sustainable Science & Technology
Ayobami Solomon Oyewo, A. A. Solomon, Dmitrii Bogdanov, Arman Aghahosseini, Theophilus Nii Odai Mensah, Manish Ram, Christian Breyer
Summary: This study reveals that transitioning Ethiopia's energy system gradually towards one dominated by solar PV, complemented by wind energy and hydropower, is the least costly, least greenhouse gas emitting, and most job-rich option.
Article
Environmental Sciences
Engdawork Assefa, Gebremichael Gebrehiwot
Summary: This study assesses the gender dimensions of climate change adaptation and the determinants of smallholder farmers' adaptation strategies in Adwa district, Tigray, Ethiopia. The study found that climate change had more severe impacts on female-headed households due to women's lack of resource access and control, lack of income and technology use, and high dependence on natural resources. Policy-makers should consider differences between female- and male-headed families in their access to land, information, income, extension services, technologies, and other resources to promote broadened and sustainable climate change adaptation practices.
GLOBAL ENVIRONMENTAL CHANGE-HUMAN AND POLICY DIMENSIONS
(2023)
Article
Green & Sustainable Science & Technology
Jeffrey Vervloesem, Ernesto Marcheggiani, Md Abdul Mueed Choudhury, Bart Muys
Summary: The conversion from conventional to renewable energy sources, particularly solar photovoltaic power, is causing significant changes in global land use. This study aimed to understand the impacts of solar parks on microclimate and vegetation dynamics. Measurements were taken at different positions underneath, in between, and outside solar panels to evaluate the effects on microclimate and vegetation. The findings showed that solar parks can lower the surface temperature through shade and airflow, and the vegetation underneath preferred lower pH and higher nitrogen levels. The land use impact assessment suggested that converting conventional intensive agriculture to solar parks can be beneficial.
Review
Green & Sustainable Science & Technology
Ambe J. Njoh
Summary: This article identifies and analyzes environmental and institutional factors affecting renewable energy initiatives in Ethiopia, finding both facilitators and barriers. It recommends the government to encourage investment from domestic and international entrepreneurs to promote the development of renewable energy industry.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Green & Sustainable Science & Technology
Chong Seok Choi, Sujith Ravi, Iskandar Z. Siregar, Fifi Gus Dwiyanti, Jordan Macknick, Michael Elchinger, Nicholas C. Davatzes
Summary: This study investigated the feasibility of integrating off-grid solar PV with high-value crop cultivation in Indonesia. The results showed that low-density PV systems overlaying crops could be economically viable and provide multiple co-benefits for rural communities.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Energy & Fuels
Aaron T. Bame, Joseph Furner, Ian Hoag, Kasra Mohammadi, Kody Powell, Brian D. Iverson
Summary: This study presents a process to determine the optimal configuration of a solar-coal power plant and demonstrates it on a coal power plant in the US. The study finds that a solar augmentation above 3% of boiler heating is required for the hybrid design to be thermodynamically feasible. The optimal configuration includes the use of parabolic trough collector technology with a solar augmentation of over 9%, bypassing feedwater heater 6.
Review
Materials Science, Multidisciplinary
Tianpeng Ding, Yi Zhou, Wei Li Ong, Ghim Wei Ho
Summary: Solar-driven interfacial evaporation technology has attracted research attention, and optimizing photothermal conversion and thermal management improves performance. Hybrid systems designed with heat localization strategy can enhance solar energy utilization and have potential applications in various fields.
Article
Green & Sustainable Science & Technology
H. L. Kangas, K. Ollikka, J. Ahola, Y. Kim
Summary: This paper examines the technology convergence of renewable energy sources (RESs) and information and communication technologies (ICTs), focusing on wind power and solar photovoltaic (PV) technologies. Analysis of international patent data reveals a rapid evolution of digital solutions in the renewable energy sector, presenting both challenges and opportunities for innovation and collaboration with ICT companies.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Green & Sustainable Science & Technology
Martina Assereto, Julie Byrne
Summary: The study indicates that large-scale investment in solar in Ireland is not commercially viable without comprehensive policy support; however, with policy support introduced, solar investment becomes profitable. Sensitivity analysis results can provide investors with informed decision-making guidance.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Multidisciplinary Sciences
Lei Duan, Tyler H. Ruggles, Ken Caldeira
Summary: Solar photovoltaics have the potential to replace fossil fuels and contribute to lower-cost zero-emission energy systems. The initial benefits of providing solar power to the electricity system are significant, especially in deep decarbonization scenarios. However, the value of additional solar power decreases as cumulative solar capacities increase. Taking full advantage of low-cost solar energy requires the development and deployment of low-cost approaches to energy supply or electricity load shifting.
Article
Thermodynamics
Datong Gao, Jing Li, Yong Hao, Gang Pei
Summary: A novel solar-driven Organic Rankine Cycle system is proposed in this paper to solve the issues of solar irradiance variability and off-design operation in solar thermal power generation. Through experimental and numerical analysis, it is found that the proposed system weakens the influence of solar irradiance on steady operation and improves overall system efficiency. Therefore, this solar Organic Rankine Cycle system exhibits superior thermal performance and contributes to the advancement of non-concentrating solar thermal power systems.
APPLIED THERMAL ENGINEERING
(2023)
Article
Multidisciplinary Sciences
Angela Garcia-Gil, Rafael A. Garcia-Munoz, Azahara Martinez-Garcia, Maria Inmaculada Polo-Lopez, Araya Gebreyesus Wasihun, Mekonen Teferi, Tsehaye Asmelash, Ronan Conroy, Kevin G. McGuigan, Javier Marugan
Summary: The lack of safe drinking water is a major issue in low-to-medium-income countries. This study successfully scaled up the Solar Water Disinfection (SODIS) process from standard 2 L bottles to 25 L transparent jerrycans and implemented it in Tigray, Ethiopia for 12 months. The results demonstrated that increasing the volume of the SODIS water containers can lead to safer drinking water in a sustainable and user-friendly manner.
SCIENTIFIC REPORTS
(2022)
Article
Water Resources
Tafesse W. Gezahegn, Xueqin Zhu
Article
Water Resources
Tafesse W. Gezahegn, Xueqin Zhu
URBAN WATER JOURNAL
(2017)
Article
Agricultural Economics & Policy
Tafesse W. Gezahegn, Steven Van Passel, Tekeste Berhanu, Marijke D'haese, Miet Maertens
Article
Agricultural Economics & Policy
Tafesse W. Gezahegn, Steven Van Passel, Tekeste Berhanu, Marijke D'Haese, Miet Maertens
AGRICULTURAL ECONOMICS
(2019)
Article
Economics
Marie-Louise Arlt, David Chassin, Claudio Rivetta, James Sweeney
Summary: This paper examines the impact of real-time pricing and load automation on residential distribution systems. The study finds that implementing real-time pricing can result in an aggregate welfare gain of 39 USD per customer and year. However, it also notes that RTP and load automation may significantly increase peak system load. Introducing a market-based demand management system can further enhance welfare gains and reduce grid investment.
Article
Economics
Javier Jorquera-Copier, Alvaro Lorca, Enzo Sauma, Stefan Lorenczik, Matias Negrete-Pincetic
Summary: As countries update their climate ambitions, low-carbon hydrogen production and use present opportunities for emissions reductions and economic development. A case study for Chile shows that integrating hydrogen and electricity networks can lower system costs and enhance renewable integration, but policy support is needed to address concerns related to water and land use.
Article
Economics
Dawit Guta, Hisham Zerriffi, Jill Baumgartner, Abhishek Jain, Sunil Mani, Darby Jack, Ellison Carter, Guofeng Shen, Jennifer Orgill-Meyer, Joshua Rosenthal, Katherine Dickinson, Rob Bailis, Yuta Masuda
Summary: Household solid fuel use is detrimental to health and the environment. The Indian government's PMUY subsidy has successfully promoted the adoption of LPG by millions of households. However, there is limited understanding of the decision-making process to reduce solid fuel use after transitioning to cleaner fuels. This study found that factors such as household wealth, social status, education level, and the prevalence of LPG use in the village are positively associated with LPG consumption and the discontinuation of solid fuel use. On the other hand, factors such as distance to LPG refill delivery, household size, and the PMUY subsidy are negatively associated with the share of LPG use.
Article
Economics
Nicolas Morell-Dameto, Jose Pablo Chaves-Avila, Tomas Gomez San Roman, Pablo Duenas-Martinez, Tim Schittekatte
Summary: This paper assesses the performance of differently implemented forward-looking network tariff designs and proposes an innovative coordination mechanism to increase predictability in a future with many flexible customers. The study reveals that if large shares of customers synchronize their responses to highly time-varying and locational-specific network charges, it can lead to unexpected reinforcements.
Article
Economics
Alexandra Gritz, Guntram Wolff
Summary: Russia's weaponization of gas supplies shook the energy security of Central and Eastern Europe in 2022. The region responded by increasing alternative energy supplies and developing new gas supply routes. Renewable energy, nuclear energy, and hydrogen play important roles in the long-term. Mitigating the impact of this shock requires the EU to prioritize the integrity of its energy market.
Article
Economics
Jaroslaw Kantorowicz, Marion Collewet, Matthew DiGiuseppe, Hendrik Vrijburg
Summary: Economic costs are a major political obstacle to investing in climate change mitigation and adaptation measures. The method of financing plays a crucial role in determining public opposition to government green investments, with debt financing being less opposed than broad-based taxes. This study suggests that credit market tools, such as green bonds and debt for climate swaps, can be politically efficient in increasing support for green financing. Carbon taxes and wealth taxes are found to be the most preferred options.
Article
Economics
Kun Guo, Liyuan Luan, Xiaoli Cai, Dayong Zhang, Qiang Ji
Summary: This paper investigates China's energy trade stability using a survival analysis approach. It finds that the energy trade linkages between China and 153 other countries are complex and unstable, with short periods of trade with many countries. Geopolitically risky regions, such as the Middle East and Africa, have the lowest trade stability. Climate risks have significant effects on energy trade stability. The paper proposes several policy options to improve energy trade stability in China, with special attention to increasing global climate risks.
Article
Economics
Simona Bigerna, Piyush Choudhary, Nikunj Kumar Jain, Silvia Micheli, Paolo Polinori
Summary: This study estimates the willingness to pay of Indian urban consumers for a continuous supply of electricity using contingent valuation method. The findings show that the amount consumers are willing to pay depends on the duration of power outages, with households preferring shorter outages. Income and environmental attitude also positively influence higher willingness to pay. These insights can inform policymakers in designing more reliable and customer-centric energy generation and distribution models.
Article
Economics
Temilade Sesan, Unico Uduka, Lucy Baker, Okechukwu Ugwu, Ewah Eleri, Subhes Bhattacharyya
Summary: This study examines the impact of the regulatory framework on rural electrification and universal energy access goals in Nigeria's mini-grid sector. The findings suggest that while the current framework has fostered sector growth, additional measures are necessary to ensure equitable distribution of access among rural populations.
Article
Economics
Rui Shan, Noah Kittner
Summary: Energy storage is a cornerstone in decarbonization planning as it reduces operational costs and greenhouse gas emissions, while enhancing resilience and renewables integration. However, storage developers in different regions have varying economic and environmental considerations, thereby requiring policy intervention to achieve long-term emission reductions.
Article
Economics
Tung Durmaz, Sevil Acar, Simay Kizilkaya
Summary: This study investigates the phenomenon of strategic capacity withholding in the Turkish electricity market and its relationship with the capacity remuneration mechanism. The empirical results provide strong evidence of strategic capacity withholding and show that the capacity mechanism contributes to the duration of failures. The study offers important insights for policymakers, including the implementation of a random verification mechanism and restructuring of the capacity mechanism in Turkey.
Article
Economics
Tii N. Nchofoung
Summary: The study finds that oil price shocks have a negative impact on Africa's energy transition, particularly in rural areas and net crude oil exporting countries. However, oil price shocks cannot explain the urban-rural differences in clean energy access. Therefore, increasing investment in clean energy and technologies in rural areas is necessary to enhance the resilience of the energy sector to oil price shocks.
Article
Economics
Najia Saqib, Muhammad Usman, Ilhan Ozturk, Arshian Sharif
Summary: This study examines the impact of environmental technologies, financial growth, and energy use on ecological footprint and green growth. Environmental innovation and renewable energy deployment contribute to green growth, while financial expansion and non-renewable energy use have negative effects on the environment. The study also identifies causal relationships between different factors.
Article
Economics
Yessica C. Y. Chung, Noxolo Kunene, Hung-Hao Chang
Summary: The Renewable Energy Certificate (REC) is considered an innovative technology for building a green society. This study investigates the impact of REC purchases on stock return and volume in Taiwan between 2017 and 2021. The findings suggest that REC purchases have a positive effect on stock returns of manufacturing firms but not service firms. The frequency of REC purchases is also an important factor in the relationship between REC purchase and firm value. Additionally, the study reveals that public attention to environmental pollution plays a crucial role in positive stock returns and volume, while ESG disclosure is negatively associated with returns and volume.
Article
Economics
Seife Ayele, Wei Shen, Yacob Mulugetta, Tadesse Kuma Worako
Summary: This paper addresses the challenges of governing energy procurement from a mix of non-hydropower renewable energy sources supplied by independent producers. Building on political economy analysis and five case studies of independent producer projects from Ethiopia, it seeks to understand the root causes of the protracted delays and limited extent of procurement by independent producers. The key contestations lie in managing long term contracts, risk, uncertainty and in developing the institutional and human capacity to transition.