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Journal articles on the topic 'Hydropower expansion'

Author: Grafiati

Published: 5 June 2025

Last updated: 2 August 2025

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1

Garrett, Kayla, Ryan A. McManamay, and Jida Wang. "Global hydropower expansion without building new dams." Environmental Research Letters 16, no. 11 (2021): 114029. http://dx.doi.org/10.1088/1748-9326/ac2f18.

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Abstract Reducing global carbon emissions will require large-scale transitions from fossil fuels to renewable energy resources. Hydropower will likely play a role in those transitions as it provides reliable energy storage while counter-balancing intermittent renewables. However, the construction of new dams comes at significant environmental costs to river ecosystems. An optimal future considers how to maximize the benefits of hydropower while minimizing environmental impact through revitalizing existing infrastructures. Herein, we quantify this potential using a spatially comprehensive globa

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2

Flecker, Alexander S., Qinru Shi, Rafael M. Almeida, et al. "Reducing adverse impacts of Amazon hydropower expansion." Science 375, no. 6582 (2022): 753–60. http://dx.doi.org/10.1126/science.abj4017.

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Proposed hydropower dams at more than 350 sites throughout the Amazon require strategic evaluation of trade-offs between the numerous ecosystem services provided by Earth’s largest and most biodiverse river basin. These services are spatially variable, hence collective impacts of newly built dams depend strongly on their configuration. We use multiobjective optimization to identify portfolios of sites that simultaneously minimize impacts on river flow, river connectivity, sediment transport, fish diversity, and greenhouse gas emissions while achieving energy production goals. We find that unco

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3

Haguma, Didier, Robert Leconte, and Stéphane Krau. "Hydropower plant adaptation strategies for climate change impacts on hydrological regime." Canadian Journal of Civil Engineering 44, no. 11 (2017): 962–70. http://dx.doi.org/10.1139/cjce-2017-0141.

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This study addresses the problem of the adaptation of hydropower plants to the future climate. A water resources optimization method was used to determine the optimum operating policy for the Manicouagan water system, Quebec, Canada, for the future hydrological regime and to establish hydropower adaptation strategies. The adaptation of the operating policy showed an increase in hydropower generation, an increase in unproductive spills, and a decrease in hydropower plant efficiency as consequences of the inflow increase, especially in winter and spring. Structural adaptation strategies, which c

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Raupp, I., and F. Costa. "Hydropower expansion planning in Brazil - Environmental improvements." Renewable and Sustainable Energy Reviews 152 (December 2021): 111623. http://dx.doi.org/10.1016/j.rser.2021.111623.

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Olalekan, Ogunbiyi, Y. Ogundepo Oludare, I. Sani Madugu, Thomas Cornelius, and J. Olufeagba Benjamin. "A progressive domain expansion method for solving optimal control problem." TELKOMNIKA Telecommunication, Computing, Electronics and Control 18, no. 4 (2020): 2062–69. https://doi.org/10.12928/TELKOMNIKA.v18i4.15047.

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Electricity generation at the hydropower stations in Nigeria has been below the expected value. While the hydro stations have a capacity to generate up to 2,380 MW, the daily average energy generated in 2017 was estimated at around 846 MW. A factor responsible for this is the lack of a proper control system to manage the transfer of resources between the cascaded Kainji-Jebba Hydropower stations operating in tandem. This paper addressed the optimal regulation of the operating head of the Jebba hydropower reservoir in the presence of system constraints, flow requirement and environmental factor

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Wang, Fei, Yusheng Liu, Qilong Li, Da Xu, and Jialiang Yu. "Research on methods and scale of deeply exploitable hydropower resources." E3S Web of Conferences 528 (2024): 02002. http://dx.doi.org/10.1051/e3sconf/202452802002.

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Deep development of hydropower is an important measure to optimize the structure of clean energy, meet the peak shaving and backup needs of the power system, and achieve the national dual carbon goals. This article conducts a systematic analysis of the development potential of developed and undeveloped hydraulic resources, including unplanned river sections, undeveloped planned power stations, unit renovation and capacity expansion, and the expansion of existing/ongoing power stations. We focused on studying the factors that affect the deep development of hydropower, including the reasonable o

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Lazarevikj, Marija, Darko Babunski, Viktor Iliev, and Zoran Markov. "Need for hydro storage due to the challenges arising from expansion of PV electricity generation." IOP Conference Series: Earth and Environmental Science 1442, no. 1 (2025): 012004. https://doi.org/10.1088/1755-1315/1442/1/012004.

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Abstract Hydropower has a crucial role in the clean energy transition (CET) due to the low-carbon electricity production, the sustainability, reliability and flexibility it provides. Both the fast response and storage potential make hydropower a basis for integrating wind and solar power whose output vary depending on external conditions. Many European countries have considerable remained feasible potential for hydropower development, among which is North Macedonia (MK). As a member of the Energy Community, MK aligns with European energy policies by adopting and implementing EU energy directiv

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Grimson, Marc, Zhongdi Qu, Yue Mao, et al. "Constraint-aware Pareto Optimization for Tree-Structured Networks: Addressing Decarbonization Targets with Hydropower Expansion." Proceedings of the AAAI Conference on Artificial Intelligence 39, no. 27 (2025): 28015–23. https://doi.org/10.1609/aaai.v39i27.35019.

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Addressing global sustainability challenges as outlined by the United Nations (UN) Sustainable Development Goals (SDGs) often requires navigating many potentially conflicting societal objectives simultaneously. For instance, increasing hydropower production enhances renewable energy supply but may adversely impact people and nature. Understanding these trade-offs is crucial, and the Pareto frontier - the set of solutions that cannot be improved with respect to one objective without negatively affecting another - is a valuable framework. Strategic hydropower planning concerns finding energy por

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Bertassoli, Dailson J., Henrique O. Sawakuchi, Kleiton R. de Araújo, et al. "How green can Amazon hydropower be? Net carbon emission from the largest hydropower plant in Amazonia." Science Advances 7, no. 26 (2021): eabe1470. http://dx.doi.org/10.1126/sciadv.abe1470.

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The current resurgence of hydropower expansion toward tropical areas has been largely based on run-of-the-river (ROR) dams, which are claimed to have lower environmental impacts due to their smaller reservoirs. The Belo Monte dam was built in Eastern Amazonia and holds the largest installed capacity among ROR power plants worldwide. Here, we show that postdamming greenhouse gas (GHG) emissions in the Belo Monte area are up to three times higher than preimpoundment fluxes and equivalent to about 15 to 55 kg CO2eq MWh−1. Since per-area emissions in Amazonian reservoirs are significantly higher t

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Brovold, Sondre H., Christian Skar, and Olav B. Fosso. "Implementing Hydropower Scheduling in a European Expansion Planning Model." Energy Procedia 58 (2014): 117–22. http://dx.doi.org/10.1016/j.egypro.2014.10.417.

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11

Dong, Jia, and Gen Hua Yan. "Structural Fatigue Analysis on Expansion Joints of Diversion Penstock of Hydropower Station." Applied Mechanics and Materials 117-119 (October 2011): 262–68. http://dx.doi.org/10.4028/www.scientific.net/amm.117-119.262.

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Abstract: The section of diversion penstock near the powerhouse behind dam in some hydropower station is equipped with expansion joints, which is used to remedy deformation of penstock in axial and lateral due to the variation of temperature and foundation subsidence. When the hydropower station is in normal water diversion and power generation, the discharged flow generates fluctuating loads, induces structural vibration of guide cylinder of expansion joints, gives rise to cumulative fatigue damage of guide cylinder and also leads to weld joints in guide cylinder cracking to fall off. When ge

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12

Samjhana, Rawat Sharma, and Sharma Manan. "Environmentalism of the Poor in the Face of Hydropower Expansion in South Asia." South Asian Journal of Social Studies and Economics 22, no. 5 (2025): 188–203. https://doi.org/10.9734/sajsse/2025/v22i51021.

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This paper investigates counter-hegemonic strategies by examining the socio-ecological protests of indigenous peoples and other marginalized groups against hydropower development in South Asia, with a focus on decolonizing the impacts of mega infrastructure projects. The paper explores opportunities for change within the contexts of community displacement caused by hydropower dams and the related challenges faced by communities in Nepal, India, Pakistan, and Bhutan. Drawing on the Environmentalism of the Poor, this study analyzes the actions taken by these communities, including legal challeng

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13

Sorachampa, Phoutthavanh, Nakorn Tippayawong, and Kanchit Ngamsanroaj. "Optimal Operation of Two Cascading Reservoir System for Maximizing Hydropower Generation Based on Particle Swarm Algorithm." International Journal of Electronics and Electrical Engineering 9, no. 1 (2021): 21–25. http://dx.doi.org/10.18178/ijeee.9.1.21-25.

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Hydropower is one of the most significant renewable energy resources, especially for mountainous countries like Laos PDR. Expansion and development of many hydropower projects in the country have presented a challenge to the operation of multiple reservoir system. Nam Ngum river was the focus of this work, where there are two or more cascading reservoirs. Optimal operation of such system is of interest, with the main goal of maximizing power generation. A multi-objective Particle Swarm Optimization (PSO) was adopted in this study, applying to two cascading reservoirs of Nam Ngum 1 and 2 hydrop

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Kiene, S., and O. Linkevics. "Simplified Model for Evaluation of Hydropower Plant Conversion into Pumped Storage Hydropower Plant." Latvian Journal of Physics and Technical Sciences 58, no. 3 (2021): 108–20. http://dx.doi.org/10.2478/lpts-2021-0020.

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Abstract Increasing capacity of intermittent generation brings new challenges to balance demand and supply in power systems. With retirement of conventional fossil generation, the role of energy storage is increasing. One of the most competitive storage technologies is pumped storage hydropower plant (PSHP). Usually, such PSHPs are constructed as green field solutions, but in some cases conversion of a hydropower plant into a pump storage hydropower plant by building a pump station is possible. To evaluate the feasibility of such modernisation it is necessary to estimate the benefits of PSHP o

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15

Sparkes, Stephen. "Sustainable hydropower development: Theun-Hinboun expansion project case study, Laos." Water Resources and Rural Development 4 (October 2014): 54–66. http://dx.doi.org/10.1016/j.wrr.2014.09.002.

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16

Liu, Zhanwei, and Xiaogang He. "Balancing-oriented hydropower operation makes the clean energy transition more affordable and simultaneously boosts water security." Nature Water 1, no. 9 (2023): 778–89. http://dx.doi.org/10.1038/s44221-023-00126-0.

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AbstractReservoir hydropower offers a compelling combination of stability and flexibility services for modern water and power grids. However, its operating flexibility is poorly characterized in energy system planning, missing opportunities to cost-effectively uptake variable renewable energy (VRE) for a clean energy transition. In this study, we have developed a fully coupled reservoir operation and energy expansion model to quantify the economic and environmental benefits attained from adaptive hydropower operation in a high VRE future. Our case study of the China Southern Power Grid reveals

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17

Stevanato, Nicolò, Matteo V. Rocco, Matteo Giuliani, Andrea Castelletti, and Emanuela Colombo. "Advancing the representation of reservoir hydropower in energy systems modelling: The case of Zambesi River Basin." PLOS ONE 16, no. 12 (2021): e0259876. http://dx.doi.org/10.1371/journal.pone.0259876.

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In state-of-the-art energy systems modelling, reservoir hydropower is represented as any other thermal power plant: energy production is constrained by the plant’s installed capacity and a capacity factor calibrated on the energy produced in previous years. Natural water resource variability across different temporal scales and the subsequent filtering effect of water storage mass balances are not accounted for, leading to biased optimal power dispatch strategies. In this work, we aim at introducing a novelty in the field by advancing the representation of reservoir hydropower generation in en

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18

Turner, Sean W. D., and Nathalie Voisin. "Simulation of hydropower at subcontinental to global scales: a state-of-the-art review." Environmental Research Letters 17, no. 2 (2022): 023002. http://dx.doi.org/10.1088/1748-9326/ac4e38.

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Abstract Hydroelectric power is playing a new and often expanded role in the world’s major power grids, offering low carbon generating capacity in industrializing, dam-building economies while providing reserve and flexibility to co-manage fledgling wind and solar resources in high income countries. Driven by river flows, conventional hydropower is exposed to the vagaries of weather and climate, motivating drought and climate change hydropower impact studies at large spatial scales. Here we review methods of climate-driven hydropower simulation at large spatial scales, specifically multi-basin

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19

Giap, Luong Ngoc, Ngo Phuong Le, Nguyen Binh Khanh, Bui Tien Trung, Truong Nguyen Tuong An, and Pham Ngoc Kien. "Modeling and Optimization of Hydropower Plant Operations in the Northern Vietnam Power System by 2030." Engineering, Technology & Applied Science Research 15, no. 1 (2025): 19099–108. https://doi.org/10.48084/etasr.9077.

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The Northern Vietnam Power System (NVPS) has a long history, with over a century and a quarter of development. The NVPS has experienced a significant expansion in its total power generation capacity. In 1954, the total capacity was 31.5 MW. By the end of 2023, the total capacity of the NVPS reached 29,537 MW, with hydropower accounting for 9,764 MW, representing 33.06%. In 2023, the NVPS generated 90.380 billion kWh of electricity. Over the past decade, the annual growth rate of commercial electricity has averaged between 10% and 12%. Northern Vietnam is endowed with vast hydropower potential,

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20

Zhang, Guoyan, Li Qian, Jianhai Zhang, Zhenning Wang, and Jianhua He. "Study on the Constitutive Model and the Identification of Parameters of Granite Based on the Crack Closure Ratio." Journal of Physics: Conference Series 2437, no. 1 (2023): 012090. http://dx.doi.org/10.1088/1742-6596/2437/1/012090.

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Abstract A large number of cracks exist inside brittle rocks, and the evolution and expansion of cracks inside rocks have adverse effects on the deformation and strength of rocks, leading to the reduction of mechanical properties of rocks and endangering the stability and safety of rock engineering. Taking the granite samples taken from underground plant of Yebatan hydropower station as the research object, conventional triaxial compression tests were carried out. The characteristics of crack evolution and expansion in granite is investigated, and the parameters of granite are analysed and ide

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21

Ge, Zewen, and Mingzhu Liu. "Revealing the potential mineral constraints in China’s hydropower infrastructure under climate change targets." Journal of Physics: Conference Series 2969, no. 1 (2025): 012005. https://doi.org/10.1088/1742-6596/2969/1/012005.

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Abstract Hydropower will expand rapidly under China’s carbon neutrality target to address global climate change. However, such expansion will cause potential conflicts between the supply of critical minerals used in hydropower and the increasing demands. Hence, this study aims to explore such mineral constraints by predicting the future demands for copper, chromium, zinc, and lead in the hydropower under different climate scenarios and assess the potential supply risks of these minerals. Results show that the cumulative demands for such critical minerals will be 4248 kilotons under carbon neut

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22

Cowx, Ian G., Alphart Lungu, and Mainza Kalonga. "Optimising hydropower development and ecosystem services in the Kafue River, Zambia." Marine and Freshwater Research 69, no. 12 (2018): 1974. http://dx.doi.org/10.1071/mf18132.

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Fisheries are an important resource in Zambia, but are experiencing overexploitation and are under increasing pressure from external development activities that are compromising river ecosystem services and functioning. One such system is the Kafue Flats floodplain, which is under threat from hydropower development. This paper reviews the effect of potential hydropower development on the Kafue Flats floodplain and explores mechanisms to optimise the expansion of hydropower while maintaining the ecosystem functioning and services that the floodplain delivers. Since completion of the Kafue Gorge

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23

Shrestha, Jayandra Prasad, and Namrata Tusuju Shrestha. "Expansion Planning of Electricity Generating System Using the VALORAGUA and WASP-IV Models in Nepal." Hydro Nepal: Journal of Water, Energy and Environment 19 (July 26, 2016): 45–51. http://dx.doi.org/10.3126/hn.v19i0.15352.

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This paper presents a framework for a possible expansion plan of Nepal’s electricity generation system using VALORAGUA and Wien Automatic System Planning (WASP-IV) models as examples. Given that Nepal seeks to add several hydropower plants to the Integrated National Power System (INPS) in the next few years, this type of planning is crucial. To explore potential expansion plans, the 48 hydropower plants (20 of which are currently operating) within 18 hydro networks and two diesel plants are included, and different options such as the possibility of export, seasonal variations in hydrology, and

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Sant’Anna, Fernanda Mello, Pedro Henrique Casalecchi Bortoletto, and Arianne Caus Donda. "Just energy transition in Amazonia and the hydropower plants." Revista Tempo do Mundo (RTM): n. 32, ago. 2023, no. 32 (March 26, 2024): 167–202. http://dx.doi.org/10.38116/rtm32art5.

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The effects of climate change have been studied and publicized by experts, civil society movements and organizations, international organizations, and felt in different ways around the world. To combat climate change, an energy transition to renewable sources is necessary, in addition to other policies and measures, including combating deforestation and forest degradation. In the Amazon, the energy transition has driven the expansion of hydroelectricity, in some cases, such as in Brazil, the region being considered the new energy frontier. However, the energy transition cannot ignore social in

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Hu, Huali, Hongfeng Yang, Bingsen Chen, Zhengquan Tang, and Qibo Liu. "Increasing Efficiency and Capacity Expansion and Computer Monitoring Reformation of Aibu III Hydropower Station." Journal of Physics: Conference Series 2437, no. 1 (2023): 012022. http://dx.doi.org/10.1088/1742-6596/2437/1/012022.

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Abstract The main problems and potential safety hazards of Aibu III Hydropower Station after extended service are analyzed. In view of the serious waste of hydraulic resources and low equipment efficiency of the power station, the expansion and reconstruction scheme of hydraulic turbine generator units is proposed, and the supporting design and implementation are carried out from all aspects of power station buildings, electrical engineering, calculation monitoring system, etc., which makes full use of hydraulic resources and completely solves the potential safety hazards of the power station,

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Rondon, David, Simon Pääjärvi, Jan-Olov Aidanpää, Rolf Gustavsson, and Peter Jeppsson. "Three-Dimensional Modeling for Mechanical Analysis of Hydropower Generators with Floating Rotor Rim." Machines 12, no. 4 (2024): 268. http://dx.doi.org/10.3390/machines12040268.

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Hydropower generators withstand multiple forces from diverse sources during operation. To ensure their stability and safe performance, numerical tools are developed to characterize their dynamic properties. Traditionally, generators are assumed to be rigid in rotordynamic analyses. However, the measurements in power stations challenge this assumption. This article proposes a novel approach to modeling hydropower generators with floating rotor rims using a three-dimensional (3-D) Finite Element Method, aiming to study their dynamic performance and properties, including natural frequencies, the

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Hazmin, Mohd Haniff, and Faizal Mustapha. "AN OUTLOOK ON HYDROPOWER IN MALAYSIA: POLICIES, CONDITIONS, AND THE POTENTIAL OF SMALL HYDROPOWER IN MALAYSIAN RIVERS AS A NEW NORM IN RENEWABLE ENERGY." Malaysian Journal of Sustainable Environment 11, no. 1 (2024): 61–88. https://doi.org/10.24191/myse.v11i1.987.

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The demand for electricity in Malaysia is increasing rapidly due to network expansion and economic growth. Renewable energy (RE) presents an excellent alternative to solve the energy crisis in countries that largely rely on depleting fossil fuels to generate power. Acknowledging the need for an energy transition, the Malaysian government implemented many policies and regulations to facilitate the adoption of RE. Hydropower is one of Malaysia’s primary RE resources, used in almost every state to supplement the national power grid via large power stations and mini-stations. It is green and produ

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Liu, Yu, Xiaomao Wang, Gang Ma, Wei Zhou, and Xiang Cheng. "Carbon Emissions and Vegetation Dynamics: Assessing the Spatiotemporal Environmental Impacts of Hydropower Dams in the Lancang River Basin." Forests 15, no. 5 (2024): 872. http://dx.doi.org/10.3390/f15050872.

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Recent decades in the Lancang River Basin have witnessed extensive construction of hydropower dams, profoundly impacting the local environment. Utilizing high-precision satellite data, we conducted a comprehensive analysis of vegetation cover and carbon emissions, integrating data-driven time series and spatial analysis models to capture both temporal and spatial dynamics. Our findings reveal that hydropower dam construction in the Lancang River Basin has significantly promoted vegetation restoration and growth, concurrently facilitating a reduction in regional carbon emissions. Employing deep

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Cerpinska, M., and R. Elmanis-Helmanis. "Dynamic Air Gap Change of Low-Speed Generator Considering Thermal Expansion, Centrifugal Force and Magnetic Force Effects." Latvian Journal of Physics and Technical Sciences 54, no. 5 (2017): 26–37. http://dx.doi.org/10.1515/lpts-2017-0031.

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Abstract The paper provides the data collected over a three-year period to illustrate the dynamic air gap change depending on generation modes of four hydropower generators with similar design. The tests were performed on hydropower units at the rated apparent power of 105 MVA and the air gap of 20 mm. The results obtained showed that the average air gap change in different modes could reach up to 2.1 mm. Around 90 % of air gap change results from thermal expansion and 10 % were determined by centrifugal and magnetic forces. In coasting mode when the power was switched off and the speed of the

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Palchenko, O. "ANALYSIS OF THE BIOLOGICAL CHARACTERISTICS OF A FRANCIS TURBINE MODERNIZED WITH A MODULAR GUIDE VANE." Municipal economy of cities 1, no. 189 (2025): 345–51. https://doi.org/10.33042/2522-1809-2025-1-189-345-351.

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There are two strategies to reduce the overall project costs to a level that would make many potential sustainable hydropower projects economically viable: 1. Designing standard/modular components. 2. Utilizing advanced tools to reduce the costs of environmental assessment. Several studies have been conducted at various hydropower plants using an autonomous sensor device (Sensor Fish) to examine a Francis turbine modernized with a modular guide vane. A series of average minimum pressures were measured under different operating conditions during the experiments. These values were compared with

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Wang, Chun Tao. "The Time to Eliminate the Expansion Joints of Diversion Pipeline in Wanjiazhai Hydropower Station." Applied Mechanics and Materials 733 (February 2015): 472–77. http://dx.doi.org/10.4028/www.scientific.net/amm.733.472.

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At present, many hydropower stations eliminate the expansion joints to solve the pipe leakage problem. It’s very important to control the welding environment temperatures in eliminating the final weld joint of the expansion joints. To address this problem, by adopting three-dimensional finite element model in studying the hydro project of Wanjiazhai, this paper analyzes the stress state of steel pipe in all welding environment temperatures in details and suggests the proper range of welding environment temperatures. Researchers suggest that May is suitable to perform welding.

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Össbo, Åsa. "Recurring Colonial Ignorance." Journal of Northern Studies 12, no. 2 (2019): 63–80. http://dx.doi.org/10.36368/jns.v12i2.916.

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This chapter sketches a genealogy of the backbone of the Swedish energy system—hydroelectricity, starting with the recent state investigation on Water Activities and its version of history that stands in contrast to research showing the historical as well as present-day colonialism manifested in Swedish policy on hydropower development in Sápmi and the apparent exclusionary practice of only inviting certain stakeholders to participate in the investigation, none of whom represented Sami organisations or institutions. In order to trace the formation of this practice, a lineage is established thr

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Yeophantong, Pichamon. "China’s Lancang Dam Cascade and Transnational Activism in the Mekong Region." Asian Survey 54, no. 4 (2014): 700–724. http://dx.doi.org/10.1525/as.2014.54.4.700.

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Over the years, China’s Lancang dam cascade has been the target of widespread contestation arising mainly from an evolving network of dam opponents. Operating across borders, these activists play an increasingly prominent role in the transboundary governance of the Lancang-Mekong River, working to curb China’s hydropower expansion and hold its dam developers to account.

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Subedi, Tek Raj, Shree Raj Shakya, and Sudip Bhattarai. "Innovations in Toroidal Propellers and Ultra-Low-Head Turbines: Applications, Performance, and Future Prospects." Journal of Engineering Issues and Solutions 4, no. 1 (2025): 267–81. https://doi.org/10.3126/joeis.v4i1.81583.

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This study examines recent developments in toroidal propellers and ultra-low-head turbines for sustainable hydropower applications. Traditional turbines often face limitations in low-head environments because of reduced efficiency and the need for large infrastructure. Ultra-low-head turbines, including cross-flow, Archimedes screw, and gravitational vortex models, offer better adaptability and performance under such conditions. At the same time, toroidal propellers, with their continuous ring-like structure, reduce energy loss from tip vortices help prevent cavitation. These propellers were f

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Polák, Martin. "A Brief History of the Kaplan Turbine Invention." Energies 14, no. 19 (2021): 6211. http://dx.doi.org/10.3390/en14196211.

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One of the most important milestones in the history of hydropower is the invention of the Kaplan turbine. It is a machine stemming from the Francis turbine, which Viktor Kaplan was originally trying to improve. However, it gradually developed into the creation of a completely new solution of an impeller with an axial flow rate and adjustable blades. The first patent relating to the new invention dates from 1913. Shortly afterwards, the Kaplan turbine became the most widely used type of device for the use of low heads and variable flow rates. That meant a significant expansion of the potential

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Barrouin Melo, Leonardo, Antonella Lombardi Costa, Fidellis Estanislau, Carlos Eduardo Velasquez, Angela Fortini, and Gustavo Nikolaus Pinto Moura. "Water-energy-emissions nexus – an integrated analysis applied to a case study." International Journal of Sustainable Energy Planning and Management 36 (December 14, 2022): 19–32. http://dx.doi.org/10.54337/ijsepm.7349.

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Competition for water use, population growth, territorial expansion for housing, the finitude of fossil fuels, climate change, and the lack of consistent and continuous energy planning are some of the existing problems related to planning and monitoring energy supply systems. This work presents an integrated analysis of the water-energy-emissions nexus using two computational models simultaneously in order to consider a case study for the modeling of hydropower plants. The main results include the reduction in hydropower generation at the end of the study horizon (2019 – 2049) between (-16.8%)

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Liu, Xingcai, Qiuhong Tang, Nathalie Voisin, and Huijuan Cui. "Projected impacts of climate change on hydropower potential in China." Hydrology and Earth System Sciences 20, no. 8 (2016): 3343–59. http://dx.doi.org/10.5194/hess-20-3343-2016.

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Abstract. Hydropower is an important renewable energy source in China, but it is sensitive to climate change, because the changing climate may alter hydrological conditions (e.g., river flow and reservoir storage). Future changes and associated uncertainties in China's gross hydropower potential (GHP) and developed hydropower potential (DHP) are projected using simulations from eight global hydrological models (GHMs), including a large-scale reservoir regulation model, forced by five general circulation models (GCMs) with climate data under two representative concentration pathways (RCP2.6 and

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Kaur, Charanjit, Pooja Gupta, S. S. Sisodia, Trapti Sharma, and R. C. Gaur. "Futuristic Approach of Utilisation of Hydropower in India." International Journal of Emerging Research in Management and Technology 6, no. 9 (2018): 161. http://dx.doi.org/10.23956/ijermt.v6i9.104.

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Hydro power is a renewable source of energy used in most parts of the world. India is very rich in hydropower potential. It is the only clean and renewable source today making significance in the world of power production. With the rising economic growth and income level India is bound to have higher demand for electricity supply. India presently has an installed power generation capacity of 284,303MW (2015) inclusive of Hydropower which is 42,623MW(2015) .The situation is highlighted by the peak power deficit—shortfall in supply of power when the demand is maximum—was 5.2% in year 2013-14.Wit

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Mohsen, Khezri, Almas Heshmati, and Mehdi Khodaei. "The role of R&D in the effectiveness of renewable energy determinants: A spatial econometric analysis." Energy Economics 99 (July 1, 2021): 105287. https://doi.org/10.1016/j.eneco.2021.105287.

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This study investigates the effects of renewable energy determinants on various renewable energy resources. The empirical results are based on data from 31 mainly Asia-Pacific countries observed from 2000 to 2018. Different diagnostic tests indicate the existence of spatial effects in the renewable energy model. The spatial Durbin model with the time-period and spatial fixed effects was selected for analysis. Scrutinizing empirical studies suggest a lack of theoretical consensus on how renewable energy determinants work. By examining how R&D affects different renewable energy resources, th

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Gu, Hua, and Gen Hua Yan. "Research on Dynamic Characteristics of Penstock and Expansion Joint Structure in Hydropower Station." Advanced Materials Research 250-253 (May 2011): 2881–87. http://dx.doi.org/10.4028/www.scientific.net/amr.250-253.2881.

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During electricity generation in Hydropower Station, there’s pulsating pressure load on discharge flow, which induces vibration and fatigue damage on expansion joint structure. In this essay, through 3D Finite Element Method we conduct research about natural vibration characteristics of honeycomb duct of steel waterline pipe expansion joint under the condition of fluid-structure interaction, analyzing and researching the characteristics of vibratory modes with fluid-structure interaction on penstock between adjacent domains. By the above effort, we acquire the parameters of vibratory modes on

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Chen, Kai, Yubin Jin, Yueyang Feng, et al. "Floating solar power as an alternative to hydropower expansion along China's Yellow River." Resources, Conservation and Recycling 207 (August 2024): 107689. http://dx.doi.org/10.1016/j.resconrec.2024.107689.

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Hočevar, Marko, Lovrenc Novak, Primož Drešar, and Gašper Rak. "The Status Quo and Future of Hydropower in Slovenia." Energies 15, no. 19 (2022): 6977. http://dx.doi.org/10.3390/en15196977.

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Slovenia is a Central European country with a long history of hydropower. This paper gives a brief introduction to the current status of hydropower utilization and informs about some selected successful examples of hydropower plant operation. One such example is fish passage and flood risk reduction on the lower reaches of the Sava River at the Brežice hydroelectric power plant, taking into account a complex of morphological, hydrological, hydraulic, and anthropogenic factors. Future development is considered against the background of the National Energy and Climate Plan, which does not envisa

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Gu, Hua, and Gen Hua Yan. "Analysis on Dynamic Response and its Optimized Design of Penstock and Expansion Joint Structure in Hydropower Station." Advanced Materials Research 250-253 (May 2011): 2892–96. http://dx.doi.org/10.4028/www.scientific.net/amr.250-253.2892.

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During electricity generation in the power station, the dynamic pulsating loads bring about vibration on penstock and expansion joint structure and lead to fatigue damage. This essay is mainly about doing research on flow-induced vibration response of power station expansion joint structure, putting the flow pulsating pressure load of expansion joint tested into numerical model to calculate, and making evaluations about its engineering safety. With regard to the problems existing in this engineering project, we bring forward the corresponding design proposal of optimization. The results of cal

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Chen, Changli, Rongfei Chen, Peng Zhao, and Dongsheng Yang. "Research on Balanced Content of Magnesium Oxide in Roller Compacted Concrete." Advances in Materials Science and Engineering 2020 (August 25, 2020): 1–6. http://dx.doi.org/10.1155/2020/8470426.

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In order to accelerate the application of magnesium oxide (MgO) expanding admixture in roller compacted concrete (RCC), aiming at common three-grading RCC used in water conservancy and hydropower engineering, the autoclave expansion of mortar specimens and the compressive strength of the autoclaved mortar specimens were studied by means of autoclave test and compressive strength test. Results showed that the balanced MgO content in RCC, which cannot be determined by the MgO content corresponding to 0.5% autoclave expansion rate of mortar specimens or the inflection point of the curve of autocl

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Roy-Omeni, Ifeanyi, Ibe Anthony, and Alwell Nteegah. "Challenges of the Domestication of Sustainable Development Goals in Nigeria." International Journal of Innovative Science and Research Technology 6, no. 12 (2022): 1219–25. https://doi.org/10.5281/zenodo.6319175.

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Sustainable Development is the ability of a people to meet the present goals using the natural resources, without compromising the ability of future generations to meet their own needs. Sustainable Development is a new method of development that takes cognizance of the environment in its development strides. The Industrial Revolution in Europe had taken off with the exploitation of resource. The industrial revolution led to the proliferation of industries which manufactured household and industrial goods on a large scale. The industrial base expansion led to higher demands for resources to pow

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Liu, Dong, Youchun Pi, Zhengyang Tang, Hongpeng Hua, and Xiaopeng Wang. "A Fusion Model for Predicting the Vibration Trends of Hydropower Units." Energies 17, no. 23 (2024): 5847. http://dx.doi.org/10.3390/en17235847.

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Hydropower units are essential to the safe, stable, and efficient operation of modern power systems, particularly given the current expansion of renewable energy systems. To enable timely monitoring of unit performance, it is critical to investigate the trends in vibration signals, to enhance the accuracy and reliability of vibration trend prediction models. This paper proposes a fusion model for the vibration signal trend prediction of hydropower units based on the waveform extension method empirical mode decomposition (W-EMD) and long short-term memory neural network (LSTMNN). The fusion mod

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Zhao, Cheng, Bisong Yue, Jianghong Ran, et al. "Relationship between human disturbance and Endangered giant panda Ailuropoda melanoleuca habitat use in the Daxiangling Mountains." Oryx 51, no. 1 (2016): 146–52. http://dx.doi.org/10.1017/s0030605315000800.

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AbstractThe Endangered giant panda Ailuropoda melanoleuca is one of the most threatened mammals. The species has experienced declines in its population and habitat as a result of human disturbance. We investigated the influence of human disturbance on habitat use by giant pandas in the Daxiangling Mountains, in China's Sichuan Province. We mapped all signs of giant panda and all locations of seven types of human disturbance in the study area. We used correlation analysis, generalized linear models, and Akaike information criteria to analyse the influence of the various types of human disturban

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Colotelo, A. H., R. P. Mueller, R. A. Harnish, et al. "Injury and mortality of two Mekong River species exposed to turbulent shear forces." Marine and Freshwater Research 69, no. 12 (2018): 1945. http://dx.doi.org/10.1071/mf18126.

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Global hydropower development is one solution proposed to address the increase in energy needs. However, hydropower-related impacts on riverine ecological systems are not well understood. The Mekong River Basin (MRB) is one of the world’s largest waterways and is presently experiencing significant hydropower expansion. It is also one of the most biodiverse rivers; serving as home to many species that are blocked or hindered by the development of dams. One source of injury and mortality for downstream moving fishes is passage through the turbine environment where fishes may be exposed to severa

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Dehtiarenko, O., S. Shashkov, and O. Misechko. "ORGANIZATIONAL AND ECONOMIC MECHANISM OF RATIONAL USE OF RESOURCE POTENTIAL OF WATER OBJECTS AT THE REGIONAL LEVEL." Vìsnik Sumsʹkogo deržavnogo unìversitetu, no. 1 (2020): 75–85. http://dx.doi.org/10.21272/1817-9215.2020.1-08.

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One of the promising areas for the development of renewable energy in Ukraine could be the expansion of the small hydroelectric power plant (HPP). The main obstacle to this is the absence of a sharp increase in the profitability of such facilities, since the operation of small hydropower facilities is based on the use of only one of their resource function, which is not consistent with the need to intensify the use of nature and integrated use of natural resources. The most expedient direction of increasing the efficiency of functioning of small hydropower facilities, increasing their economic

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Heimerl, Stephan, and Niklas Schwiersch. "Dynamic Water-Level Regulation at Run-of-River Hydropower Plants to Increase Efficiency and Generation." Water 13, no. 21 (2021): 2983. http://dx.doi.org/10.3390/w13212983.

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In times of the energy transition and the intensified expansion of renewable energy systems, this article presents an optimization approach for run-of-river power, i.e., dynamic water-level regulation. Its basic idea is to use river sections influenced by backwater more evenly via the operating regime of a hydropower plant. In contrast to conventional dam and weir water level management, the head of the reservoir is not shifted toward the weir while the discharge rate increases but is kept in position by temporarily raising the water level. This generates a greater head for higher discharge ra

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