Article
Green & Sustainable Science & Technology
V Aryanpur, M. Ghahremani, S. Mamipour, M. Fattahi, B. O. Gallachoir, M. D. Bazilian, J. Glynn
Summary: This paper presents an ex-post analysis on the impact of electricity subsidy reform in Iran from 1984 to 2017. The analysis shows that subsidy reform could have reduced electricity consumption by 22% and increased the share of renewable energy in power generation from 5% to 15%. It also reveals that the reform would have saved $69 billion and avoided 944 million tons of CO2 emissions, while a five-year delay in subsidy removal causes an additional 100 million tons of CO2 emissions.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Chemistry, Multidisciplinary
Henning Thiesen
Summary: This study analyzes the future German power system considering sufficient inertia using a novel open-source energy system model. The results indicate that integrating system inertia constraints in energy system models has a high impact on indicators such as system costs.
APPLIED SCIENCES-BASEL
(2022)
Article
Green & Sustainable Science & Technology
Ivan A. Hernandez-Robles, Xiomara Gonzalez-Ramirez, Julian A. Gomez-Gutierrez, Juan M. Ramirez
Summary: A new model using Fourier series components has been proposed for Wave Energy Potential (WEP) estimation, reducing inaccuracies and ensuring correct expectations of electric power generation and component sizing. Accurate WEP estimation can be a valuable investment decision tool for wave energy plant development.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2021)
Review
Energy & Fuels
Ali M. M. Hakami, Kazi N. N. Hasan, Mohammed Alzubaidi, Manoj Datta
Summary: In order to find the most accurate and efficient techniques for uncertainty modelling (UM) in power system stability analysis, this paper provides a comprehensive review and classification of the available UM techniques. The increasing uncertainties in power systems resulting from renewable energy sources, new loads, and deregulation of electricity markets make probabilistic power system analysis necessary. These factors significantly impact power system stability, requiring computationally intensive simulations including frequency, voltage, transient, and small disturbance stability. A total of 40 UM techniques are collated, providing their characteristics, advantages, disadvantages, and application areas, with a particular focus on accuracy and efficiency. The review recommends the most accurate and efficient UM techniques for probabilistic stability analysis in power systems with a high penetration of renewable energy.
Article
Chemistry, Physical
Dilara Gulcin Caglayan, Heidi U. Heinrichs, Martin Robinius, Detlef Stolten
Summary: Variable renewable energy sources (VRES) are considered the cornerstones of future energy supply systems, with green hydrogen proposed as a sustainable energy carrier to address their intermittency. Designing a fully VRES-based European energy system, taking into account supply security across 38 weather year scenarios, and considering the impact of different power generation locations, can lead to lower total annual costs for the system.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Bryn Pickering, Francesco Lombardi, Stefan Pfenninger
Summary: This study develops a high-resolution model to simulate the entire European energy system and generates 441 technically feasible system designs. The results show that a wide range of systems based on renewable energy are feasible without the need to import energy from outside Europe. The model solutions also reveal flexibility in the choice and geographical distribution of new infrastructure.
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
Green & Sustainable Science & Technology
L. Mehigan, Brian O. Gallachoir, Paul Deane
Summary: Increasing renewable energy in electricity systems is crucial for reducing greenhouse gas emissions, along with greater flexibility. Research shows that deployment of interconnection and batteries can reduce renewable energy curtailment, with a high carbon price playing a critical role.
Article
Green & Sustainable Science & Technology
Adam E. Malek, Benjamin M. Adams, Edoardo Rossi, Hans O. Schiegg, Martin O. Saar
Summary: Advanced Geothermal Systems (AGS) generate electric power through conductive heat transfer from rocks using a closed-loop circuit. However, AGS is currently uneconomical due to its slow heat transfer rate compared to heat advection. The use of CO2 as the working fluid improves AGS performance, and there are optimal parameters that minimize AGS costs. Nevertheless, significant advancements in drilling technologies are necessary to make AGS cost-competitive.
Article
Energy & Fuels
Chao Chen, Yangsiyu Lu, Lei Xing
Summary: This study focused on optimizing renewable energy systems using hydrogen from water electrolysis to mitigate the variability of renewable sources. Techno-economic assessments revealed a trade-off between cost and reliability, highlighting the potential for improving economics by adjusting system reliability.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Thermodynamics
Alena Lohrmann, Michael Child, Christian Breyer
Summary: The transition to 100% renewable energy could help address the water-energy nexus, but certain technologies may strain water ecosystems. By 2050, the water footprint of fossil-fueled power plants in 20 European regions is projected to significantly decrease, though total water demand may rise in some areas under the Area scenario. Countries like Turkey, Norway, and Sweden could face the largest water demands in Europe due to new hydropower plant developments.
Review
Green & Sustainable Science & Technology
Shuhao Zhang, Nan Zhang
Summary: This paper introduces the recent development in integrated green hydrogen polygeneration, summarizing theoretical concepts, design types, and recent developments related to the integration of Alkaline Electrolysis (AE), Proton Exchange Membrane Electrolysis (PEME), and the Solid Oxide Electrolysis Cell (SOEC). The study evaluates the efficiency and economic impact of green hydrogen production integrated with different energy sources, storage, and power cycles. The state-of-the-art method for hydrogen production is the Solid Oxide Electrolysis Cell (SOEC) which shows over 10% efficiency improvement compared to commercially applied methods (AE and PEME).
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Green & Sustainable Science & Technology
Jan Mutke, Leonie Sara Plaga, Valentin Bertsch
Summary: This study investigates the deployment of supply side flexibility options in the future European power system. Different scenarios are explored, and it is found that additional flexibility options are needed for moderate decarbonization levels with high shares of variable renewable energies (VRE). The deployment of power storages grows nonlinearly as the system approaches a zero-emission system, mainly driven by hydrogen storage investments.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Green & Sustainable Science & Technology
Yoh Yasuda, Lori Bird, Enrico Maria Carlini, Peter Borre Eriksen, Ana Estanqueiro, Damian Flynn, Daniel Fraile, Emilio Gomez Lazaro, Sergio Martin-Martinez, Daisuke Hayashi, Hannele Holttinen, Debra Lew, John McCam, Nickie Menemenlis, Raul Miranda, Antje Orths, J. Charles Smith, Emanuele Taibi, Til Kristian Vrana
Summary: This paper introduces an objective and quantitative evaluation tool named the C-E map for assessing and comparing curtailment situations in different countries. The C-E map can draw historical trend curves, aiding historical and international comparisons, as well as classify countries/areas based on their situations.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Energy & Fuels
Zisheng Lu
Summary: Since the industrial revolution, carbon dioxide has been emitted into the atmosphere through the burning of coal, oil, and natural gas. The use of renewable energy should be greatly increased, from the current 26% to 86% by 2050. However, solar energy and wind energy face challenges such as intermittency and instability. This study proposes the use of compressed air for energy storage and demonstrates that the power capacity increases with turbine inlet gas pressure, while the overall efficiency decreases. The highest total efficiency achieved is approximately 0.519, with a peak power generation capacity of 663.6 W in the compressed air system.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Construction & Building Technology
Tomas Mac Uidhir, Fionn Rogan, Matthew Collins, John Curtis, Brian P. O. Gallachoir
ENERGY AND BUILDINGS
(2020)
Article
Environmental Sciences
Tarun Sharma, Brian O. Gallachoir, Fionn Rogan
ENVIRONMENTAL INNOVATION AND SOCIETAL TRANSITIONS
(2020)
Article
Green & Sustainable Science & Technology
Dolf Gielen, Deger Saygin, Emanuele Taibi, Jean-Pierre Birat
JOURNAL OF INDUSTRIAL ECOLOGY
(2020)
Article
Green & Sustainable Science & Technology
Evan Boyle, Brian O. Gallachoir, Gerard Mullally
Summary: This study introduces a methodological approach that utilizes social network analysis and participatory mapping method to enhance the capacity of change agents in community and just transition contexts to engage the public in planning. The research focuses on the application of a participatory network mapping approach in the Dingle Peninsula 2030 initiative, emphasizing the importance of a multi-stakeholder approach and exploring themes such as participatory justice, social learning, and visualizing complexity.
Review
Green & Sustainable Science & Technology
Connor McGookin, Brian O. Gallachoir, Edmond Byrne
Summary: This paper presents a systematic review of participatory methods used in energy system modelling and planning. The review found that there is a lack of progress in process democratisation within energy system modelling and planning research, with only a small portion of studies involving collaboration with non-academic stakeholders and limited interactions with participants.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Multidisciplinary Sciences
Siddharth Joshi, Shivika Mittal, Paul Holloway, Priyadarshi Ramprasad Shukla, Brian O. Gallachoir, James Glynn
Summary: This study utilizes machine learning and geospatial analysis to conduct a high-resolution global assessment of rooftop solar photovoltaics potential, revealing its distribution and cost implications worldwide.
NATURE COMMUNICATIONS
(2021)
Article
Economics
Evan Boyle, Martin Galvin, Alexandra Revez, Aoife Deane, Brian O. Gallachoir, Gerard Mullally
Summary: This research paper explores the role of citizen and community engagement in climate mitigation projects in the Irish context. By adopting a co-production approach, the study aims to improve the interaction between institutions and community groups, leading to an effective implementation of measures for transitioning to a low-carbon energy system. The paper provides guidelines for community engagement and suggests policy measures for their implementation, laying the foundation for a co-production framework for climate-related infrastructure developments.
Article
Green & Sustainable Science & Technology
Vera O'Riordan, Fionn Rogan, Brian O'Gallachoir, Hannah Daly
Summary: This article assesses the private car CO2 emissions and car tax revenue in Ireland over a 10-year period following the introduction of an emissions-based car taxation policy in 2008. The study utilizes a model of the Irish car stock, incorporating new car sales, car fleet mileage, and CO2 emissions intensity data to provide a comprehensive analysis of historic CO2 emissions from the car fleet. A counterfactual scenario is developed, comparing car purchasing trends in EU countries that did not implement emissions-based purchase and annual car taxes over the same period. The study reveals that, compared to this counterfactual scenario, the CO2 emissions intensity of new car sales in 2018 would have been 9% higher, resulting in an estimated cumulative CO2 saving of 1.2 Mt from 2008 to 2018 due to the tax change. However, total annual emissions from private cars would have been 4.4% higher in the counterfactual scenario, and the tax change also led to a decline in annual motor tax revenues.
INTERNATIONAL JOURNAL OF SUSTAINABLE TRANSPORTATION
(2023)
Article
Multidisciplinary Sciences
Connor McGookin, Brian O. Gallachoir, Edmond Byrne
Summary: This article outlines the systematic review process of integrating participatory methods into energy system modelling and planning. It discusses the challenges posed by the combination of technical and social sciences and the issue of language diversity. The study develops a conceptual framework of meaningful stakeholder participation and uses creative data visualizations to analyze the literature.
Article
Education & Educational Research
Evan Boyle, Clare Watson, Connor McGookin, Aoife Deane, Deirdre de Bhailis, Claire McElligott, Seamus O'Hara, Brendan Tuohy, Gerard Mullally, Brian O. Gallachoir
Summary: This paper uses reflective practice to examine the role of collaborative governance in promoting the sociotechnical transition to a low-carbon society. The study emphasizes the need for more collaboration between local communities, national public bodies, and research organizations, as well as the role of individuals in collaborative governance.
REFLECTIVE PRACTICE
(2021)
Article
Multidisciplinary Sciences
Tomas Mac Uidhir, Fionn Rogan, Matthew Collins, John Curtis, Brian O. Gallachoir
Article
Green & Sustainable Science & Technology
Giada Venturini, Jacopo Tattini, Eamonn Mulholland, Brian O. Gallachoir
INTERNATIONAL JOURNAL OF SUSTAINABLE TRANSPORTATION
(2019)
Article
Environmental Studies
Li Li, Jianjun Wang, Brian O. Gallachoir, Hua Cai, Jian Zhang
Article
Environmental Studies
James Glynn, Maurizio Gargiulo, Alessandro Chiodi, Paul Deane, Fionn Rogan, Brian O. Gallachoir
Article
Environmental Studies
Joseph Curtin, Celine McInerney, Brian O. Gallachoir, Sarah Salm
ENERGY RESEARCH & SOCIAL SCIENCE
(2019)