Article
Economics
Rafia Zaman, Debasish Kumar Das, Oscar van Vliet, Alfred Posch
Summary: This study reveals that higher borrowing constraints result in higher costs for solar home system loans for rural households, imposing a poverty penalty on highly constrained borrowers. It is recommended to implement targeted intervention mechanisms to reduce the financial burden on borrowers in poverty-stricken areas.
Article
Environmental Studies
Laura Hellqvist, Harald Heubaum
Summary: The Bangladesh Solar Home Systems (SHS) programme, the world's largest domestic solar off-grid electrification scheme, is at risk of collapsing due to the decline in end user support and installation levels. Several factors, including the government's implementation of competing energy access projects, lack of regulatory oversight, and subsidy decreases, have led to customers abandoning the programme. This jeopardizes Bangladesh's objective of achieving Sustainable Development Goal (SDG) 7 by 2030.
Article
Engineering, Multidisciplinary
A. S. A. Mohamed, Hussein M. Maghrabie
Summary: By 2035, Egypt aims to generate 22% of its electricity from photovoltaic power plants. This study evaluates the techno-economic feasibility of the large-scale grid-connected photovoltaic project in Benban Solar Park, taking into account factors such as greenhouse gas emissions reduction and operation and maintenance costs. The results show that the project is economically feasible and will significantly reduce greenhouse gas emissions.
ALEXANDRIA ENGINEERING JOURNAL
(2022)
Review
Green & Sustainable Science & Technology
Amit Kumer Podder, Md. Habibullah, Naruttam Kumar Roy, Hemanshu Roy Pota
Summary: This paper presents the current prospects and research activities of solar photovoltaic systems in Bangladesh, reviewing 21 feasibility studies to analyze financial viability and sensitivity to solar potential areas. The study identifies policy gaps, classifies barriers, and discusses approaches to overcome them, providing recommendations in six different aspects for future development.
IET RENEWABLE POWER GENERATION
(2021)
Article
Environmental Studies
Sakib Bin Amin, Mainul Islam Chowdhury, S. M. Asif Ehsan, S. M. Zahid Iqbal
Summary: The study reveals that households are more likely to use solar energy as a coping mechanism against natural disaster-induced electricity disruption, leading to a reduction in disaster damage. However, households that have experienced damages from natural disasters are less likely to use solar energy, while those using solar energy show improved resilience against natural disasters.
ENERGY RESEARCH & SOCIAL SCIENCE
(2021)
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
Tariq Muneer, Mehreen Saleem Gul, Marzia Alam
Summary: This article compares the energy generation of fixed-slope and tracking PV modules, and based on data analysis from two locations, Lincoln (England) and Bhavnagar (India), it concludes that a fixed-slope system provides a significant amount of energy receipt and the use of bifacial PV is beneficial for solar farm installations.
Article
Thermodynamics
Niranjan Rao Deevela, Bhim Singh, Tara C. Kandpal
Summary: This paper presents the results of a HOMER-based techno-economic assessment of an electricity supply option using a hybrid system of PV, diesel generator, and the electricity grid. The study analyzes electricity unavailability data for 132 locations in India and estimates the net present cost and cost of electricity for 25 selected locations, comparing them with values for the conventional grid+DG system. The inclusion of PV results in lower NPC and CoE values for the proposed system at all locations.
Article
Thermodynamics
Shakila Aziz, Shahriar Ahmed Chowdhury
Summary: The level of education of household members, particularly females, influences the choice of electricity services, while male education level is linked to total electricity expenditure. Property ownership predicts the choice of higher tier electricity access. Higher income and higher education level of males in households are associated with energy stacking between solar home systems and mini-grid connections.
Article
Green & Sustainable Science & Technology
Md. Imamul Islam, Md Hasan Maruf, Ahmed Al Mansur, Ratil H. Ashique, Mohammad Asif ul Haq, A. S. M. Shihavuddin, Mohd Shawal Jadin
Summary: The installation of large-scale photovoltaic power plants is a solution to the energy demand in Bangladesh. However, the land crisis is a key challenge. Floating photovoltaic could be a viable solution. The feasibility of constructing a floating solar plant at Hatirjheel Lake in Dhaka has been investigated, and it has the potential to meet local energy demand and reduce CO2 emissions.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2023)
Article
Green & Sustainable Science & Technology
M. H. Alsantali, A. F. Almarshoud
Summary: The government of Saudi Arabia has recently adopted regulations allowing consumers to install grid-connected PV systems in different sectors. However, the current energy exchange tariff is not encouraging for installation. This study investigates the economic feasibility of installing PV systems from the consumer side, using RETscreen software to simulate different cases in five cities. The results show that installing grid-connected PV systems is feasible if the system is designed to meet the annual energy demand of the house or less, with a payback time of around 10 years and a LCOE of 0.095 SAR/kWh.
CLEAN TECHNOLOGIES AND ENVIRONMENTAL POLICY
(2023)
Article
Energy & Fuels
Armand Fopah-Lele, Amelie Kabore-Kere, Jean Gaston Tamba, Isdeen Yaya-Nadjo
Summary: This research aims to demonstrate how much renewable hydrogen can be produced in a sub-Saharan African context (Cotonou, Benin) and includes both numerical and experimental validation. Results show a 19% efficiency for solar hydrogen production, with limitations on production rate including storage pressure and available electricity. Economic analysis indicates a levelized cost of hydrogen production from solar photovoltaic of about 1.09 euro/m³ under present conditions.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Thermodynamics
Ahmed G. Abo-Khalil, Khairy Sayed, Ali Radwan, Ibrahim I. A. El-Sharkawy
Summary: The UAE has favorable weather conditions for integrating renewable energies, especially photovoltaic solar energy, into the utility grid. It possesses one of the highest rates of solar radiation in the world, which contributes to reducing greenhouse gas emissions. This article discusses a study on controlling the variability of electricity production from solar energy and improving its integration for self-consumption. It covers topics such as energy storage, photovoltaic production, and optimizing the dimensioning of production systems. The research also examines the economic feasibility and profitability of this technology for a selected building.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Article
Economics
Rohan Best
Summary: Solar and battery adoption for households offers multiple benefits. This study uses microdata from a household survey in Kenya to investigate the factors influencing investment in solar and battery technologies. The findings show that assets, such as bank or mobile money accounts, and owning valuable land, play a key role in households' likelihood to adopt solar systems. Additionally, affordability of grid connection and distance from electricity grids also impact adoption rates. Targeted support to households with low levels of assets could further promote adoption.
Article
Energy & Fuels
Bas B. Van Aken, Pieter Verstraten, Bart M. Kaas, Ilkay Cesar
Summary: Solar electricity is gaining market share and can deliver electricity at any positive price due to its near-zero marginal cost. Compared to fuel-based power plants, wind and solar energy have lower production costs. In the Dutch electricity market, the growth of utility-scale PV parks can result in a significant decrease in electricity prices over the next 20 years.
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.