Article
Green & Sustainable Science & Technology
Marco Pierro, Richard Perez, Marc Perez, Matteo Giacomo Prina, David Moser, Cristina Cornaro
Summary: This work presents a progressive strategy to achieve 100% penetration of intermittent renewables by transforming them into effectively dispatchable generation sources, displacing conventional generation at minimal cost. The pathway for a full renewable energy transition of the Italian electric mix is delineated based on addressing net load forecast imbalances resulting from renewables' prediction errors.
Article
Green & Sustainable Science & Technology
Qi Chen, Zhonghong Kuang, Xiaohua Liu, Tao Zhang
Summary: This study addresses the issue of mismatch in a solar-rich county transitioning into a major electricity producer. By examining a unique county in China, it is found that renewable energy cannot instantly meet 45.6% of the annual demand. However, adjusting the renewable energy profile and utilizing electrical energy storage can partially resolve this mismatch. Additionally, the seasonal mismatch can be eliminated by exploiting controllable zero-carbon energy.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Energy & Fuels
Guan Yan, Lin Han
Summary: The solar energy generated from rooftop photovoltaic (PV) systems in Australia's National Electricity Market (NEM) has been steadily increasing over the past decade. This study aims to assess the impact of rooftop solar energy generation on spot electricity demand and predict power system load in the post-COVID-19 era. By analyzing half-hourly data from 2009 to 2019, a novel approach is developed to estimate rooftop solar energy generation and regression models are built to analyze wholesale electricity demand in each state. The results show that the adoption of solar PV systems has significantly altered the levels and intra-day patterns of power demand, leading to a reduction in daytime power consumption and the emergence of a duck curve. Furthermore, it is predicted that electricity demand in most states of the NEM will decrease during the period of 2019-2034.
FRONTIERS IN ENERGY RESEARCH
(2023)
Article
Green & Sustainable Science & Technology
Govinda R. Timilsina
Summary: Renewable energy technologies, especially solar and wind energy technologies, have experienced a rapid decline in costs over the past two decades, making them cost-competitive with fossil fuel technologies. However, there is currently no consensus on the cost competitiveness due to wide variations in factors influencing LCOEs across countries and technologies.
Review
Multidisciplinary Sciences
Emmanuel P. Agbo, Collins. O. Edet, Thomas O. Magu, Armstrong O. Njok, Chris M. Ekpo, Hitler Louis
Summary: The article reviews the current status and research progress of solar energy in Nigeria, highlighting the country's overdependence on crude oil and natural gas leading to an energy consumption crisis. It also emphasizes the potential of solar energy generation in Nigeria and the challenges it faces, with recommendations and policies proposed to address them.
Article
Multidisciplinary Sciences
Natanael Bolson, Pedro Prieto, Tadeusz Patzek
Summary: In light of the consequences of climate change and the war in Ukraine, it is crucial to decarbonize electrical power systems globally while avoiding repeated blackouts. A comprehensive understanding of the performance and reliability of various power sources is essential for this endeavor. The capacity factor serves as a direct measure of the effectiveness and cost of power generation, enabling calculations to determine the necessary capacity to replace or expand current fossil fuel-based electricity generation using solar PV or wind power.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Green & Sustainable Science & Technology
Carla Cristiane Sokulski, Murillo Vetroni Barros, Rodrigo Salvador, Evandro Eduardo Broday, Antonio Carlos de Francisco
Summary: The use of non-renewable energy sources increases environmental impacts. This article analyzes the trends in renewable electricity supply in the G20 countries and finds that Brazil and Canada have the largest renewable electricity matrices, while Saudi Arabia has the smallest. The countries with the highest GDP are not necessarily the largest producers of renewable electricity, and hydroelectric energy is still the dominant source. However, wind and solar energy are growing in their contribution to the electrical matrices, and other sources are showing a slow but steady increase in participation.
Article
Green & Sustainable Science & Technology
Mustafa Tevfik Kartal, Ugur Korkut Pata, Ozer Depren, Sinan Erdogan
Summary: Meeting energy needs and ensuring ecological sustainability are important tasks. This study investigates the influence of nuclear power and renewables on achieving carbon neutrality in major nuclear power countries. The findings show that nuclear energy reduces carbon emissions in Russia, while solar and wind power contribute to emission reduction in the U.S., Russia, and France. However, China's use of nuclear and renewables for carbon neutrality is inefficient.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Green & Sustainable Science & Technology
Abbas Asakereh, Mohsen Soleymani, Seyed Mohammad Safieddin Ardebili
Summary: This study developed a fuzzy multi-criteria decision-making method for ranking renewable power generation technologies, with results indicating that solar photovoltaics and concentrated solar power are the top choices in Khuzestan province, Iran.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
Article
Nuclear Science & Technology
Philseo Kim, So-Bin Cho, Man-Sung Yim
Summary: According to the South Korean government's plan, the electricity share of renewable energy will be expanded to 20% of the total electricity generation by 2030. However, the intermittency of renewable energy poses challenges and may result in excess electricity generation. Therefore, the study aims to develop a model to simulate the effects of excess electricity generation and propose strategies for effective utilization of domestic electricity generating capabilities.
NUCLEAR ENGINEERING AND TECHNOLOGY
(2022)
Article
Green & Sustainable Science & Technology
Evaldo Costa, Ana Carolina Rodrigues Teixeira, Suellen Caroline Silva Costa, Flavia L. Consoni
Summary: This study evaluates the impact of public policies on the use and diffusion of wind and solar PV, and studies the potential effects of the post-COVID-19 pandemic on these renewable sources. The findings highlight the importance of renewable energy in decarbonizing the electricity sector and address barriers to its development in Brazil.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Energy & Fuels
Pablo Dellicompagni, Judith Franco, Victoria Flexer
Summary: An assessment of energy requirements in the lithium brine mining industry found that using concentrating solar power (CSP) as a thermal or electrical energy source is a beneficial option. A parabolic trough plant coupled with thermal storage was identified as a more suitable choice for diversifying the energy matrix and reducing greenhouse emissions. The simulation results showed that these technologies could cover over 20% of the thermal energy matrix annually, with a parabolic trough system coupled with thermal storage achieving a 51% matrix penetration and an annual CO2 mitigation of 403.3 gCO(2)/kgLCE.
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
Thermodynamics
F. A. V. Biggins, D. Travers, J. O. Ejeh, R. Lee, A. Buckley, S. Brown
Summary: Deploying energy storage (ES) alongside renewable generation can help to decarbonise electricity grids, but the economic impact of location needs to be considered. This study, using an optimisation model, explores the variation in profits of a solar farm co-located with ES in different regions of Great Britain. The findings suggest that for most areas in GB, the high upfront costs of ES do not justify its addition to solar sites.
Article
Green & Sustainable Science & Technology
Paula D. Rigo, Julio Cezar M. Siluk, Daniel P. Lacerda, Julia P. Spellmeier
Summary: In Brazil, the number of active photovoltaic installers has significantly increased in the last three years, but the Net Metering system may reduce benefits, prompting the need for a competitive business model. Research shows that some companies lack competitiveness in large-scale photovoltaic plants, but there are potential business opportunities in condominiums, cooperatives, or the free market.
Article
Thermodynamics
Wai Lip Theo, Jen Shiun Lim, Wai Shin Ho, Haslenda Hashim, Chew Tin Lee, Zarina Abdul Muis
Article
Green & Sustainable Science & Technology
Wai Shin Ho, Cheng Seong Khor, Haslenda Hashim, Sandro Macchietto, Jiri Jaromir Klemes
CLEAN TECHNOLOGIES AND ENVIRONMENTAL POLICY
(2014)
Article
Engineering, Chemical
W. S. Ho, H. Y. Chin, K. C. Wong, Z. A. Muis, H. Hashim
DESALINATION AND WATER TREATMENT
(2014)
Article
Engineering, Electrical & Electronic
Wai Shin Ho, Mohd Zul Waciar Mohd Tohid, Haslenda Hashim, Zarina Abdul Muis
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2014)
Article
Green & Sustainable Science & Technology
Jeng Shiun Lim, Zainuddin Abdul Manan, Haslenda Hashim, Sharifah Rafidah Wan Alwi
JOURNAL OF CLEANER PRODUCTION
(2014)
Article
Green & Sustainable Science & Technology
Sie Ting Tan, Chew Tin Lee, Haslenda Hashim, Wai Shin Ho, Jeng Shiun Lim
JOURNAL OF CLEANER PRODUCTION
(2014)
Article
Engineering, Environmental
H. Hashim, A. Hudzori, Z. Yusop, W. S. Ho
RESOURCES CONSERVATION AND RECYCLING
(2013)
Article
Green & Sustainable Science & Technology
Wan Choy Chee, Wai Shin Ho, Angel Xin Yee Mah, Jiri Jaromir Klemes, Yee Van Fan, Cassendra Phun Chien Bong, Keng Yinn Wong, Haslenda Hashim, Sharifah Rafidah Wan Alwi, Zarina Muis
Summary: The valorisation of organic waste can lead to cleaner production in the energy sector, but the carbon-to-nitrogen (C/N) ratio is a crucial factor that affects the decision-making process. This study proposes a new graphical C/N ratio Pinch Analysis approach to address the mismatch between the supply and demand sides of organic waste valorisation. The integration of the C/N ratio element in the Pinch-based Analysis of Supply Composite Curve (SCC) shifting provides valuable insights for optimally valorising organic waste.
JOURNAL OF CLEANER PRODUCTION
(2022)
Proceedings Paper
Engineering, Industrial
Syaza I. Ahmad, Haslenda Hashim, Mimi H. Hassim, Zarina Abdul Muis
PROCEEDING OF 4TH INTERNATIONAL CONFERENCE ON PROCESS ENGINEERING AND ADVANCED MATERIALS (ICPEAM 2016)
(2016)
Proceedings Paper
Engineering, Environmental
Wai Shin Ho, Haslenda Hashim, Nor Erniza Mohammad Rozali, Zarina A. Muis, Jeng Shiun Lim
PRES15: PROCESS INTEGRATION, MODELLING AND OPTIMISATION FOR ENERGY SAVING AND POLLUTION REDUCTION
(2015)
Proceedings Paper
Engineering, Environmental
Muhammad Zulhilmi Ahmad, Haslenda Hashim, Nor Alafiza Yunus, Zarina Muis
PRES15: PROCESS INTEGRATION, MODELLING AND OPTIMISATION FOR ENERGY SAVING AND POLLUTION REDUCTION
(2015)
Proceedings Paper
Engineering, Environmental
Syaza I. Ahmad, Haslenda Hashim, Mimi H. Hassim, Zarina Abdul Muis
PRES15: PROCESS INTEGRATION, MODELLING AND OPTIMISATION FOR ENERGY SAVING AND POLLUTION REDUCTION
(2015)
Proceedings Paper
Engineering, Multidisciplinary
Syaza I. Ahmad, Haslenda Hashim, Mimi H. Hassim, R. Srinivasan
16TH INTERNATIONAL CONFERENCE ON PROCESS INTEGRATION, MODELLING AND OPTIMISATION FOR ENERGY SAVING AND POLLUTION REDUCTION (PRES'13)
(2013)
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.
