Article
Economics
Rufei Ma, Huan Cai, Qiang Ji, Pengxiang Zhai
Summary: This paper explores the impact of FIT payment degression on renewable energy R&D investment and analyzes the efficient FIT payment structure. The results emphasize the adverse effect of tariff degression on the commercial value of new renewable technology and the inventor's incentive in R&D investment.
Article
Energy & Fuels
Dong-xiao Yang, Ya-qiang Jing, Chan Wang, Pu-yan Nie, Peng Sun
Summary: This paper examines the effects of uncertainty on renewable energy production and policies, revealing that feed-in tariff (FIT) has a better incentive effect, while renewable portfolio standard (RPS) offers higher production and profit stability. It is observed that at low cost stages, the intensity of both policies is directly proportional to renewable energy output.
ENERGY STRATEGY REVIEWS
(2021)
Article
Economics
Andri D. Setiawan, Marmelia P. Dewi, Bramka Arga Jafino, Akhmad Hidayatno
Summary: Geothermal energy is crucial for meeting Indonesia's energy demand sustainably. The government has set ambitious targets for geothermal contributions to the national energy mix, but the implementation of the feed-in tariff (FIT) mechanism has faced challenges and undergone changes. This study combines policy analysis and system dynamics modeling to explore the effectiveness of FIT policies for geothermal development in Indonesia.
Article
Thermodynamics
Libo Zhang, Changqi Chen, Qunwei Wang, Dequn Zhou
Summary: This paper explores the impact of FIT reduction and the introduction of RPS on DPVG development in China. FIT reductions have a short-term negative effect on DPVG installations, but can be gradually reduced without sacrificing the grid parity goal. After FITs are cancelled, RPS can effectively help continue the trend towards grid parity.
Article
Thermodynamics
Xianyu Yu, Shengxian Ge, Dequn Zhou, Qunwei Wang, Ching-Ter Chang, Xiuzhi Sang
Summary: This paper analyzes the impact of photovoltaic policies on the government and photovoltaic firms through an evolutionary game model and a system dynamics model. The renewable portfolio standards policy has advantages over the feed-in tariff policy, but its incentive measures need improvement. Stakeholders' willingness and subsidy price significantly affect the trading volume of tradable green certificates, while the social welfare of photovoltaic firms is mainly related to the subsidy price. The total amount of government cash subsidy is smaller than the social effect, emphasizing the need for appropriate renewable energy support policies for promoting photovoltaic development and economic growth.
Article
Economics
Jie Wu, Boyang Zhang
Summary: This study quantifies the wind resource endowment in different regions of China and evaluates the impact of various grid parity scenarios on regional wind power investments. The results indicate that wind power investment returns decrease in all regions with decreasing feed-in tariffs, with the western regions being more affected. Additionally, the investment return of regional wind power is positively correlated with wind power potential but negatively correlated with electricity price uncertainty. Regions with abundant wind power resources cannot guarantee sufficient returns on investment when electricity price uncertainty increases.
Article
Energy & Fuels
Tetiana Kurbatova, Iryna Sotnyk, Olha Prokopenko, Iryna Bashynska, Uliana Pysmenna
Summary: This paper focuses on improving the feed-in tariff policy for green energy advancement in Ukrainian households. The study evaluates the economic efficiency of investment project implementation and suggests methodical approaches to enhance the calculation of feed-in tariffs and reconsider other policy measures for effective renewable energy development.
Article
Economics
Hong Xian Li, Yitao Zhang, Yan Li, Jiaxin Huang, Glenn Costin, Peng Zhang
Summary: Solar energy applications play a crucial role in urban sustainable development and energy investment. This study proposes a Feed-in Tariff determination mechanism based on payback years to incentivize the adoption of residential photovoltaic systems. The results suggest an optimal Feed-in Tariff range for individual energy investors, serving as a reference point for policymakers in adjusting incentive policies.
Article
Economics
Lars H. Sendstad, Verena Hagspiel, Wilhelm Jebsen Mikkelsen, Ruben Ravndal, Martin Tveitstol
Summary: Renewable energy has received substantial public support over the past few decades, but its reliance on governments can lead to policy uncertainty, affecting private investors' decisions. Empirical findings suggest that retroactive policy changes significantly influence investment decisions in solar and onshore wind sectors, highlighting the importance of a stable policy environment for incentivizing investments by private firms.
Article
Engineering, Multidisciplinary
Tiantong Xu, Junhai Ma
Summary: This study examines the impact of feed-in tariffs and tax-rebate regulations on the solar photovoltaic supply chain. A novel supply chain structure is established, and a nonlinear dynamic system is used to study long-term operations strategy, equilibrium stability, and the effects of conservative and aggressive strategies. The findings suggest that chaos may have potential benefits for players with risk preference, while risk-averse players can utilize a controlling method to return the system to a stable state.
APPLIED MATHEMATICAL MODELLING
(2021)
Review
Green & Sustainable Science & Technology
David J. Murphy, Marco Raugei, Michael Carbajales-Dale, Brenda Rubio Estrada
Summary: This article introduces the concepts of net energy and Energy Return on Investment (EROI), and points out the lack of methodological consistency in various papers, leading to inaccurate comparisons across technologies. The authors provide a literature review and harmonization of EROI values to ensure accurate comparisons of thermal fuels and electricity production technologies.
Article
Energy & Fuels
Changgui Dong, Runmin Zhou, Jiaying Li
Summary: Governments offer subsidies to clean technologies, with the impact on technology deployment being difficult to gauge. The case study of China's solar photovoltaic market shows that increasing PV subsidies significantly boosts the development of the national PV market.
Article
Environmental Studies
Dina Azhgaliyeva, John Beirne, Ranjeeta Mishra
Summary: This paper examines the drivers of private investment in renewable energy by source of financing for 13 economies over the period 2008-2018. The findings show that government expenditure positively affects private investment from asset finance and corporate R&D. Feed-in tariffs have a strong effect on stimulating renewable energy investment financed through public markets, especially in Asia. Tax incentives have a mixed impact on different sources of financing. Technology costs and energy prices considerably drive renewable energy investment from asset finance, particularly in the Asian sub-sample.
Article
Energy & Fuels
Chun-Nan Chen, Chun-Ting Yang
Summary: The Taiwanese government aims for 20% renewable energy supply by 2025, with a focus on 20 GW PV capacity. A study shows that investing in small PV systems will be more attractive in the next decade.
Article
Environmental Sciences
Huang Ren, Xu Qifeng, Guan Yongjun, Xu Yunbao, Hu Gaole, Muhammad Tayyab Sohail
Summary: This study examines the relationship between country risk and renewable energy investment in highly polluted economies. The empirical analysis using various econometric techniques shows that country risk negatively affects renewable energy investment. Additionally, factors such as GDP, CO2 emissions, and technological development have a positive influence on renewable energy investment, while human capital and financial development do not have a significant impact.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Polymer Science
Felipe C. Fernandes, Kerry Kirwan, Danielle Lehane, Stuart R. Coles
EUROPEAN POLYMER JOURNAL
(2017)
Article
Engineering, Environmental
Dominik Jasinski, James Meredith, Kerry Kirwan
INTERNATIONAL JOURNAL OF LIFE CYCLE ASSESSMENT
(2018)
Article
Green & Sustainable Science & Technology
Marco Cinelli, Stuart R. Coles, Mallikarjuna N. Nadagouda, Jerzy Biaszczynski, Roman Slowinski, Rajender S. Varma, Kerry Kirwan
JOURNAL OF CLEANER PRODUCTION
(2017)
Article
Engineering, Civil
A. P. Gaylard, A. Kabanovs, J. Jilesen, K. Kirwan, D. A. Lockerby
JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS
(2017)
Review
Engineering, Mechanical
Adrian P. Gaylard, Kerry Kirwan, Duncan A. Lockerby
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART D-JOURNAL OF AUTOMOBILE ENGINEERING
(2017)
Article
Management
Milosz Kadzinski, Marco Cinelli, Krzysztof Ciomek, Stuart R. Coles, Mallikarjuna N. Nadagouda, Rajender S. Varma, Kerry Kirwan
EUROPEAN JOURNAL OF OPERATIONAL RESEARCH
(2018)
Article
Green & Sustainable Science & Technology
Felipe C. Fernandes, Kerry Kirwan, Peter R. Wilson, Stuart R. Coles
Article
Engineering, Environmental
Felipe C. Fernandes, Kerry Kirwan, Peter R. Wilson, Stuart R. Coles
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2019)
Article
Thermodynamics
Lavinia Bianchi, Kerry Kirwan, Luca Alibardi, Marc Pidou, Stuart R. Coles
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2020)
Article
Agricultural Engineering
Daniel Indiana Carlotta-Jones, Kevin Purdy, Kerry Kirwan, James Stratford, Stuart R. Coles
BIORESOURCE TECHNOLOGY
(2020)
Article
Engineering, Environmental
Saravanan Chandrasekaran, Maria Sotenko, Alvaro Cruz-Izquierdo, Zuhayr Rymansaib, Pejman Iravani, Kerry Kirwan, Janet L. Scott
Summary: In this study, printable and biodegradable printed circuit boards were prepared using cellulose, laponite, and ionic liquids, and their properties were analyzed to confirm the feasibility of the composites. The addition of laponite increased the flame retardancy and degradation temperature of the composite but decreased the mechanical properties, while surface hydrophobicity was achieved through treatment.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2021)
Article
Development Studies
Dominik Jasinski, James Meredith, Kerry Kirwan
Summary: A-SAM is an innovative model developed to drive sustainable decision-making in the automotive sector, enabling large car manufacturers to evaluate options and optimize decisions by quantifying external effects into monetary equivalents.
SUSTAINABLE DEVELOPMENT
(2021)
Article
Engineering, Environmental
Okechukwu Okorie, Jennifer Russell, Ruth Cherrington, Oliver Fisher, Fiona Charnley
Summary: This study explores the potential role of digital technologies in cultivating competitive advantage for manufacturing firms in terms of achieving net-zero emissions. The integration of digital technologies can help firms achieve zero emissions and gain a competitive edge. The study also emphasizes the importance of managing and developing intangible assets, including labor and supply chain relationships.
RESOURCES CONSERVATION AND RECYCLING
(2023)
Article
Chemistry, Physical
Peter R. Wilson, Alon Ratner, Gary Stocker, Frank Syred, Kerry Kirwan, Stuart R. Coles
Article
Environmental Studies
Dominik Jasinski, Marco Cinelli, Luis C. Dias, James Meredith, Kerry Kirwan
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.