Article
Environmental Sciences
Fatih Sogukpinar, Gokhan Erkal, Huseyin Ozer
Summary: This article examines the impact of installed capacity of renewable energy sources on sectoral electricity demand and aims to evaluate the renewable energy policies implemented in Turkey. The study finds that the Installed Capacity variable significantly and negatively affects electricity demand in all sectors in the long run. According to the forecast results, a higher increase in the installed capacity of renewable energy sources leads to a faster decrease in electricity demand. Based on these findings, Turkey needs to increase the share of renewable energy sources in electricity production for economic and environmental sustainability.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Green & Sustainable Science & Technology
Sulaman Muhammad, Yanchun Pan, Xiao Ke, Mujtaba Hassan Agha, Prasad Siba Borah, Muhammad Akhtar
Summary: The European Union's fast-track transition toward renewable energy has not reduced energy poverty in the region, despite significant growth in renewable energy consumption and income per capita. In fact, at the early transition stage, renewable energy has led to higher energy prices and increased energy poverty. However, when renewable energy becomes the dominant energy supply source, it eventually helps reduce energy poverty. Additionally, good governance quality has a positive effect in reducing energy poverty, while higher electricity prices and unemployment rates promote energy poverty.
Article
Green & Sustainable Science & Technology
Juan M. Gonzalez-Ramirez, Angel Arcos-Vargas, Fernando Nunez
Summary: This research determines the optimal size of a photovoltaic (PV) plant, in terms of profitability, that can be added to an existing wind installation. The analysis is based on a sample of 62 wind facilities in Spain in 2021. The results show that adding an optimal power of PV to a wind farm can maximize the net present value of the investment. The findings will contribute to the design of economically viable hybrid plants.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2023)
Article
Energy & Fuels
Oliver Ruhnau
Summary: By adding flexible electricity demand, green hydrogen production can effectively and permanently halt the decline in market value of renewable energy.
Article
Mathematics
Pratik Mochi, Kartik Pandya, Joao Soares, Zita Vale
Summary: To encourage energy saving and adoption of renewable sources, this study integrates socioeconomic and behavioral objectives in an experimental framework for the local energy community. By using behavioral interventions, the experiment aims to determine their impact on consumer participation in the local electricity sector. The findings show that the interaction between socioeconomic and behavioral objectives leads to significant cost savings for energy utility customers, implying policy implications for local energy utilities.
Article
Thermodynamics
Rafael Ortiz-Imedio, Dilara Gulcin Caglayan, Alfredo Ortiz, Heidi Heinrichs, Martin Robinius, Detlef Stolten, Inmaculada Ortiz
Summary: The study suggests that as ship demand increases, Ireland will play a key role as a hydrogen supplier, while storage capacities in salt caverns in the UK, central Europe, and Spain are observed to increase. H-2 and electricity are essential for the deployment of more sustainable maritime transport and related activities on the European Atlantic coast.
Article
Economics
Muhammad Arsalan Aqeeq, Muhammad Arsalan Tahir, Waqas Ali Haider, Farheen Aqeeq, Fahad Bin Abdullah
Summary: This paper examines the impact of policy regime on the financial configuration and sustainable energy future in developing countries using the case of Utility-scale solar (USS) integration in Pakistan. It analyzes the national regulator's PPA model and validates its assumptions and parameters, dispelling misconceptions and information asymmetry. The paper also presents project-level modeling results for 130 districts in Pakistan, revealing the viability of low PPA prices and the potential for cost optimization through different financing mechanisms. Furthermore, it identifies policy imperatives and strategies for promoting sustainable economic development, including derisking policies and domestic financial development.
Article
Economics
Marc Melliger
Summary: Multi-technology auctions are a popular tool in the EU for supporting renewable electricity, but they may lead to dominance of certain technologies, posing reliability issues for some countries' power systems. Statistical analysis reveals that 80% of multi-technology auctions from 2011-2020 were skewed, favoring one technology strongly or exclusively. General design elements and context factors cannot explain this phenomenon, suggesting that auction-external factors may be the key factors. However, the aggregated outcome across different rounds, years, and countries remains relatively balanced, although this balance may change in the future if skewed outcomes persist. Policymakers should consider technology-specific auctions for promoting diverse and targeted renewable deployment if they cannot manage the risks associated with skewed auction outcomes.
Article
Economics
Werner Antweiler, Felix Muesgens
Summary: The merit order effect describes the phenomenon of a decrease in electricity prices due to increased renewable energy capacity, but it is temporary due to slow capacity adjustments. Concerns about the adverse consequences for conventional power plants resulting from renewable capacity are partially justified, as renewables compete with base load to a limited extent.
Article
Economics
Jelle Meus, Sarah De Vits, Nele S'heeren, Erik Delarue, Stef Proost
Summary: This study provides an overview of renewable subsidy schemes focusing on their impact in a uniformly-priced market zone. Different support instruments, including feed-in tariffs, sliding feed-in premiums, fixed feed-in premiums, investment-based subsidies, and capacity-based subsidies, are analyzed using a German case study. The research shows that investment- and capacity-based subsidies are not equivalent, and sliding feed-in premiums can be a viable alternative to fixed premiums in mitigating investment risks.
Article
Mathematics
Javier Bilbao, Eugenio Bravo, Olatz Garcia, Carolina Rebollar, Concepcion Varela
Summary: This article discusses the optimization of operation in hybrid microgrids, focusing on load sharing management and integration into the electricity market. The study considers solar and wind energy, as well as hybrid storage with hydrogen, and uses the Machine Learning method of Decision Trees to optimize microgrid performance. The conclusions highlight the importance of developing suitable controllers for competitive renewable energy participation and microgrid integration.
Article
Energy & Fuels
Nebojsa Corovic, Branka Gvozdenac Urosevi, Nenad Kati
Summary: This paper discusses a comprehensive set of new measures to reduce the consequences of climate change, highlighting the need for a holistic approach and potential challenges. It specifically focuses on detailed suggestions for the energy transition process in the Republic of Serbia.
Article
Economics
Deborah Werner, Lira Luz Benites Lazaro
Summary: Policies can drive the transition to renewable energy by promoting sustainable energy and climate practices. The success of these policies relies on political will and public support. Governments worldwide are implementing measures to incentivize renewable energy and drive changes in energy systems.
Article
Thermodynamics
Namrata Bist, Anirbid Sircar
Summary: The majority of power generation plants in India rely on non-renewable resources due to low cost and availability, which is expensive and unreliable for power generation. However, studies have shown that using multiple renewable energies in a hybrid mode can increase system efficiency. This study focuses on a geothermal power plant in India, which showed improved power generation results through a hybrid system combining solar thermal and geothermal energy sources.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Economics
Ann-Katrin Fleck, Vasilios Anatolitis
Summary: Many countries prioritize objectives when setting renewable energy expansion targets, due to the different nature and impact of these objectives. In this paper, the authors analyze the relationship between objectives and auction design elements in European countries with renewable energy auctions. They find that not all auction design choices align with auction theory and literature findings, but most countries have congruent auction designs that support their stated objectives. For countries with incongruent designs, recommendations are provided to adapt their auction design based on their specific policy objectives.
Article
Engineering, Electrical & Electronic
Geertje Schuitema, Lisa Ryan, Claudia Aravena
IEEE POWER & ENERGY MAGAZINE
(2017)
Article
Engineering, Electrical & Electronic
Ciara O'Dwyer, Lisa Ryan, Damian Flynn
IEEE TRANSACTIONS ON POWER SYSTEMS
(2017)
Article
Economics
Karen Turner, Givele Figus, John Kim Swales, Lisa Ryan, Patrizio Lecca, Peter McGregor
Article
Green & Sustainable Science & Technology
Sanghamitra Chattopadhyay Mukherjee, Lisa Ryan
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2020)
Article
Public, Environmental & Occupational Health
Ciaran Mac Domhnaill, Owen Douglas, Sean Lyons, Enda Murphy, Anne Nolan
Summary: The study found that long-term exposure to road traffic noise may be negatively associated with executive function among older adults, especially when considering a sub-sample, this association appears to be accounted for by exposure to air pollution. There was no evidence found of an association between noise exposure and memory or processing speed.
Article
Economics
Ivan Petrov, Lisa Ryan
Summary: This paper examines the persistence of the landlord-tenant energy efficiency problem in the residential rental property market in Ireland, finding that the issue exists but varies across locations and is influenced by other factors. In markets with limited rental property supply, there is a significant difference in energy efficiency between rental and non-rental properties. Additionally, comparing rental and non-rental properties with identical building design at construction time yields similar findings to the overall sample.
Article
Education & Educational Research
Ciaran Mac Domhnaill, Gretta Mohan, Selina McCoy
Summary: This study examined the impact of high-speed broadband availability on student engagement with distance learning during the COVID-19 pandemic in Ireland. Schools in areas with lower coverage of high-speed broadband were found to have more adversely affected student engagement, indicating the need for government intervention to provide greater equity in broadband access. Additionally, supporting secondary teachers in using live online teaching could enhance student engagement.
DISTANCE EDUCATION
(2021)
Article
Communication
Mide Griffin, Sean Lyons, Gretta Mohan, Merin Joseph, Ciaran Mac Domhnaill, John Evans
Summary: This paper examines consumers' switching behavior in mobile phone plans within the same operator in Ireland. The study finds that a significant proportion of switchers end up increasing their expenditures, and only a slight majority of switchers choose more optimal plans. The research also investigates the associations between switching outcomes and demographic and user characteristics.
TELECOMMUNICATIONS POLICY
(2022)
Article
Green & Sustainable Science & Technology
Tensay Hadush Meles, Lisa Ryan
Summary: This paper examines the adoption decisions and diffusion of heat pumps for residential home heating, and analyzes the influence of economic, psychological, and social networks on the future uptake of heat pumps. The findings based on the case study of Ireland can be useful for policymakers and companies in devising interventions to increase the uptake of heat pumps and other renewable energy technologies.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Education & Educational Research
Gretta Mohan, Eamonn Carroll, Selina McCoy, Ciaran Mac Domhnaill, Georgiana Mihut
Summary: Research shows that parental education level influences student engagement in home learning, with a stronger impact on Junior Certificate students. Unequal home learning environments may exacerbate existing disparities in education.
IRISH EDUCATIONAL STUDIES
(2021)
Article
Economics
Sarah Parlane, Lisa Ryan
Article
Environmental Studies
Denis Dineen, Lisa Ryan, Brian O. Gallachoir
Article
Economics
Claus Huber, Lisa Ryan, Brian O Gallachoir, Gustav Resch, Katrina Polaski, Morgan Bazilian
Article
Green & Sustainable Science & Technology
Cameron Bracken, Nathalie Voisin, Casey D. Burleyson, Allison M. Campbell, Z. Jason Hou, Daniel Broman
Summary: This study presents a methodology and dataset for examining compound wind and solar energy droughts, as well as the first standardized benchmark of energy droughts across the Continental United States (CONUS) for a 2020 infrastructure. The results show that compound wind and solar droughts have distinct spatial and temporal patterns across the CONUS, and the characteristics of energy droughts are regional. The study also finds that compound high load events occur more often during compound wind and solar droughts than expected.
Article
Green & Sustainable Science & Technology
Ning Zhang, Yanghao Yu, Jiawei Wu, Ershun Du, Shuming Zhang, Jinyu Xiao
Summary: This paper provides insights into the optimal configuration of CSP plants with different penetrations of wind power by proposing an unconstrained optimization model. The results suggest that large solar multiples and TES are preferred in order to maximize profit, especially when combined with high penetrations of wind and photovoltaic plants. Additionally, the study demonstrates the economy and feasibility of installing electric heaters (EH) in CSP plants, which show a linear correlation with the penetration of variable energy resources.
Article
Green & Sustainable Science & Technology
M. Szubel, K. Papis-Fraczek, S. Podlasek
Article
Green & Sustainable Science & Technology
J. Silva, J. C. Goncalves, C. Rocha, J. Vilaca, L. M. Madeira
Summary: This study investigated the methanation of CO2 in biogas and compared two different methanation reactors. The results showed that the cooled reactor without CO2 separation achieved a CO2 conversion rate of 91.8%, while the adiabatic reactors achieved conversion rates of 59.6% and 67.2%, resulting in an overall conversion rate of 93.0%. Economic analysis revealed negative net present worth values, indicating the need for government monetary incentives.
Article
Green & Sustainable Science & Technology
Yang Liu, Yonglan Xi, Xiaomei Ye, Yingpeng Zhang, Chengcheng Wang, Zhaoyan Jia, Chunhui Cao, Ting Han, Jing Du, Xiangping Kong, Zhongbing Chen
Summary: This study investigated the effect of using nanofiber membrane composites containing Prussian blue-like compound nanoparticles (PNPs) to relieve ammonia nitrogen inhibition of rural organic household waste during high-solid anaerobic digestion and increase methane production. The results showed that adding NMCs with 15% PNPs can lower the concentrations of volatile fatty acids and ammonia nitrogen, and increase methane yield.
Article
Green & Sustainable Science & Technology
Zhong Ge, Xiaodong Wang, Jian Li, Jian Xu, Jianbin Xie, Zhiyong Xie, Ruiqu Ma
Summary: This study evaluates the thermodynamic, exergy, and economic performance of a double-stage organic flash cycle (DOFC) using ten eco-friendly hydrofluoroolefins. The influences of key parameters on performance are analyzed, and the advantages of DOFC over single-stage type are quantified.
Article
Green & Sustainable Science & Technology
Nicolas Kirchner-Bossi, Fernando Porte-Agel
Summary: This study investigates the optimization of power density in wind farms and its sensitivity to the available area size. A novel genetic algorithm (PDGA) is introduced to optimize power density and turbine layout. The results show that the PDGA-driven solutions significantly reduce the levelized cost of energy (LCOE) compared to the default layout, and exhibit a convex relationship between area and LCOE or power density.
Article
Green & Sustainable Science & Technology
Chunxiao Zhang, Dongdong Li, Lin Wang, Qingpo Yang, Yutao Guo, Wei Zhang, Chao Shen, Jihong Pu
Summary: In this study, a novel reversible liquid-filled energy-saving window that effectively regulates indoor solar radiation heat gain is proposed. Experimental results show that this window can effectively reduce indoor temperature during both summer and winter seasons, while having minimal impact on indoor illuminance.
Article
Green & Sustainable Science & Technology
Alessandro L. Aguiar, Martinho Marta-Almeida, Mauro Cirano, Janini Pereira, Leticia Cotrim da Cunha
Summary: This study analyzed the Brazilian Equatorial Shelf using a high-resolution ocean model and found significant tidal variations in the area. Several hypothetical barrages were proposed with higher annual power generation than existing barrages. The study also evaluated the installation effort of these barrages.
Article
Green & Sustainable Science & Technology
Francesco Superchi, Nathan Giovannini, Antonis Moustakis, George Pechlivanoglou, Alessandro Bianchini
Summary: This study focuses on the optimization of a hybrid power station on the Tilos island in Greece, aiming to increase energy export and revenue by optimizing energy fluxes. Different scenarios are proposed to examine the impact of different agreements with the grid operator on the optimal solution.
Article
Green & Sustainable Science & Technology
Peimaneh Shirazi, Amirmohammad Behzadi, Pouria Ahmadi, Sasan Sadrizadeh
Summary: This research presents two novel energy production/storage/usage systems to reduce energy consumption and environmental effects in buildings. A biomass-fired model and a solar-driven system integrated with photovoltaic thermal (PVT) panels and a heat pump were designed and assessed. The results indicate that the solar-based system has an acceptable energy cost and the PVT-based system with a heat pump is environmentally superior. The biomass-fired system shows excellent efficiency.
Article
Green & Sustainable Science & Technology
Zihao Qi, Yingling Cai, Yunxiang Cui
Summary: This study aims to investigate the operational characteristics of the solar-ground source heat pump system (SGSHPS) in Shanghai under different operation modes. It concludes that tandem operation mode 1 is the optimal mode for winter operation in terms of energy efficiency.
Article
Green & Sustainable Science & Technology
L. Bartolucci, S. Cordiner, A. Di Carlo, A. Gallifuoco, P. Mele, V. Mulone
Summary: Spent coffee grounds are a valuable biogenic waste that can be used as a source of biofuels and valuable chemicals through pyrolysis and solvent extraction processes. The study found that heavy organic bio-oil derived from coffee grounds can be used as a carbon-rich biofuel, while solvent extraction can extract xantines and p-benzoquinone, which are important chemicals for various industries. The results highlight the promising potential of solvent extraction in improving the economic viability of coffee grounds pyrolysis-based biorefineries.
Article
Green & Sustainable Science & Technology
Luiza de Queiroz Correa, Diego Bagnis, Pedro Rabelo Melo Franco, Esly Ferreira da Costa Junior, Andrea Oliveira Souza da Costa
Summary: Building-integrated photovoltaics, especially organic solar technology, are important for reducing greenhouse gas emissions in the building sector. This study analyzed the performance of organic panels laminated in glass in a vertical installation in Latin America. Results showed that glass lamination and vertical orientation preserved the panels' performance and led to higher energy generation in winter.
Article
Green & Sustainable Science & Technology
Zhipei Hu, Shuo Jiang, Zhigao Sun, Jun Li
Summary: This study proposes innovative fin arrangements to enhance the thermal performance of latent heat storage units. Through optimization of fin distribution and prediction of transient melting behaviors, it is found that fin structures significantly influence heat transfer characteristics and melting behaviors.
