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Journal articles on the topic 'Hydroelectric'

Author: Grafiati
Published: 4 June 2021
Last updated: 24 January 2023

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1

Baškarad, Tomislav, Igor Kuzle, and Sejid Tešnjak. "Nonlinear mathematical model of hydroelectric power plant." Journal of Energy - Energija 66, no. 1-4 (June 23, 2022): 18–39. http://dx.doi.org/10.37798/2017661-494.

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Mathematical and simulation models enable hydroelectric power unit dynamic behavior analysis using computers. In this paper, nonlinear mathematical models of all elements in hydroelectrical power plant are detailed described. Basic elements of hydroelectric power unit are water supply tunnel, surge tank, penstock, water turbine and synchronous generator. If we want more credible simulations models and calculation results, we have to use nonlinear differential equations. Using these nonlinear differential equations, a simulation model was developed for Zakucac HPP.
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2

Sivertson, Lorne. "Hydroelectric Generation: Hydroelectric Projects-Risks and Management." Natural Gas & Electricity 30, no. 2 (August 22, 2013): 14–18. http://dx.doi.org/10.1002/gas.21710.

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3

Sims, Geoffrey P. "Hydroelectric energy." Energy Policy 19, no. 8 (October 1991): 776–86. http://dx.doi.org/10.1016/0301-4215(91)90047-r.

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4

Einhorn, Michael A. "Hydroelectric relicensing." Resources and Energy 9, no. 1 (June 1987): 45–53. http://dx.doi.org/10.1016/0165-0572(87)90022-3.

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5

Elistratov, V. V., V. D. Zhilenko, E. P. Machikha, and I. G. Gil'chenko. "Hydraulic model studies of a hydroelectric unit under operating conditions at hydroelectric/state area hydroelectric plants." Hydrotechnical Construction 24, no. 12 (December 1990): 756–61. http://dx.doi.org/10.1007/bf01434601.

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6

ROSSINELLI, F., G. P. SIMS, and D. G. WARDLE. "CARHUAQUERO HYDROELECTRIC PROJECT." Proceedings of the Institution of Civil Engineers - Water Maritime and Energy 106, no. 1 (March 1994): 1–24. http://dx.doi.org/10.1680/iwtme.1994.25825.

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7

Zarkeshev, A., and C. Csiszar. "HYDROELECTRIC ROAD RAMP." Science and Transport Progress. Bulletin of Dnipropetrovsk National University of Railway Transport, no. 3(81) (June 24, 2019): 36–43. http://dx.doi.org/10.15802/stp2019/171292.

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8

Mendonça, Raquel, Sarian Kosten, Sebastian Sobek, Nathan Barros, Jonathan J. Cole, Lars Tranvik, and Fábio Roland. "Hydroelectric carbon sequestration." Nature Geoscience 5, no. 12 (November 29, 2012): 838–40. http://dx.doi.org/10.1038/ngeo1653.

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9

Flanagan, Kyle. "Hydroelectric equipment repair." Renewable Energy Focus 15, no. 1 (January 2014): 22–25. http://dx.doi.org/10.1016/s1755-0084(14)70017-1.

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10

Bussiere, Jean L. "4843249 Hydroelectric system." Deep Sea Research Part B. Oceanographic Literature Review 37, no. 1 (January 1990): 103. http://dx.doi.org/10.1016/s0198-0254(05)80016-0.

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11

Lepecki, Jerzy, and Jerson Kelman. "Brazilian Hydroelectric System." Water International 10, no. 4 (January 1985): 156–61. http://dx.doi.org/10.1080/02508068508686345.

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12

CASSIANO, KEILA MARA, LUIZ ALBINO TEIXEIRA JÚNIOR, RAFAEL MORAIS DE SOUZA, MOISÉS LIMA DE MENEZES, JOSÉ FRANCISCO MOREIRA PESSANHA, and REINALDO CASTRO SOUZA. "HYDROELECTRIC ENERGY FORECAST." International Journal of Energy and Statistics 01, no. 03 (September 2013): 205–14. http://dx.doi.org/10.1142/s2335680413500142.

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13

Rusina, A. G., Dzh Kh Khudzhasaidov, O. V. Naumov, and A. N. Gorlov. "Development of an intelligent system for integrated management of hydroelectric cascade modes." E3S Web of Conferences 124 (2019): 05019. http://dx.doi.org/10.1051/e3sconf/201912405019.

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The paper deals with an isolated electric power system (EPS) based on hydroelectric power plants. The analysis of the existing methods and approaches for investigation of modes of EPS which comprise hydroelectric power plants is presented. A mathematical model of a hydroelectric station cascade has been developed, which allows taking into account the hydraulic connection during calculation of electrical modes. A software tool for optimization the operating modes of hydroelectric power plants as part of the power system was developed. It uses redistribution the load between hydraulic units both inside the station and between hydroelectric complexes of cascade hydroelectric stations. The task of modeling power consumption and load graphs of EPS with specific properties, based on the application of artificial intelligence methods, is considered.
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14

Kumar, Parveen, Pradumn Kumar, Manish Kansal, and Vivek Verma. "Environmental - friendly Al2O3 based Hydroelectric cells for green energy production." IOP Conference Series: Materials Science and Engineering 1248, no. 1 (July 1, 2022): 012055. http://dx.doi.org/10.1088/1757-899x/1248/1/012055.

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Abstract In recent times, it was observed that green electrical power can be generated using Hydroelectric Cells (HEC), which can be alternative of solar and fuel cell for future energy generation systems. This hydroelectric cell uses few drops of water to produce efficient, safe and eco-friendly green power. HEC working process depends upon the splitting of H2O molecules with different metal oxides. Low-cost Al2O3 based hydroelectric cell has been fabricated to generate green electrical energy. Solid state sintering method was adopted for the preparation of Al2O3 sample for hydroelectric cell. Phase formation and structural information of the sample were investigated by X-ray diffraction analysis and Fourier transform infrared spectroscopy. A circular pellet of diameter 2-inch was prepared to examine hydroelectric properties and a circular pellet of diameter 10 mm was prepared for the study of conduction phenomenon of dissociated ions in the cell. The maximum voltage ~ 0.925 V, maximum current ~ 8.02 mA, and maximum power ~ 7.42 mW was obtained for the low-cost Al2O3 based hydroelectric cell. DC conductivity measurement confirmed the dissociation of water molecules and their conduction phenomenon. Al2O3 based hydroelectric cell provides us green energy with eco-friendly byproducts without any usage of acid/alkali/photocatalytic activity/electrolyte. Moreover, presented Al2O3 based hydroelectric cell can resolve the problem of industrial waste containing of alumina.
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15

Hariadi, Hariadi, Muchlisinalahuddin Muchlisinalahuddin, and Mira Meilisa. "ANALISIS PERBANDINGAN UNJUK KERJA TURBIN PLTA BATANG AGAM TERHADAP KONDISI PADA SAAT KOMISIONING." Rang Teknik Journal 4, no. 2 (June 4, 2021): 398–405. http://dx.doi.org/10.31869/rtj.v4i2.2667.

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The Batang Agam Hydroelectric Power Plant is the oldest Hydroelectric Power Plant in West Sumatera, which is located in the district of Lima Puluh Kota. The Hydroelectric Power Plant started operating in 1976 with a Nett power is 10.5 MW. In its operation so far the turbine of the Batang Agam Hydroelectric Power Plant decrease in the performance compared to the initial commissioning. The impact of decreasing turbine efficiency of Batang Agam Hydroelectric Power Plant lead use of water to convert its energy electricity be wasteful. Therefore it is necessary to research so that the turbine can effectively use the river water that has been dammed in the Kolam Tando more efficient. From the results of analysis obtained the conclusion that the efficiency of the turbine Batang Agam Hydroelectric Power Plant at 3.5 MW from the highest to the lowest; Unit 1 with 86.7% efficiency, Unit 3 with 83.9% efficiency and Unit 2 with 79.2% efficiency. Compared with commissioning data unit-units in the turbine of Batang Agam Hydroelectric Power Plant has decreased efficiency of the amount; Unit 1 of 0.32%, Unit 2 of 7.80% and Unit 3 is 3.05%.
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16

Dao, Fang, Yun Zeng, Yidong Zou, Xiang Li, and Jing Qian. "Acoustic Vibration Approach for Detecting Faults in Hydroelectric Units: A Review." Energies 14, no. 23 (November 23, 2021): 7840. http://dx.doi.org/10.3390/en14237840.

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The health of the hydroelectric generator determines the safe, stable, and reliable operation of the hydropower station. In order to keep the hydroelectric generator in a better state of health and avoid accidents, it is crucial to detect its faults. In recent years, fault detection methods based on sound and vibration signals have gradually become research hotspots due to their high sensitivity, achievable continuous dynamic monitoring, and easy adaptation to complex environments. Therefore, this paper is a supplement to the existing state monitoring and fault diagnosis system of the hydroelectric generator; it divides the hydroelectric generator into two significant parts: hydro-generator and hydro-turbine, and summarizes the research and application of fault detect technology based on sound signal vibration in hydroelectric generator and introduces some new technology developments in recent years, and puts forward the existing problems in the current research and future development directions, and it is expected to provides some reference for the research on fault diagnosis of the hydroelectric generator.
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17

Amolo, Amolo Elvis Juma, Charles Mallans Rambo, and Charles Misiko Wafula. "Financial risk management instruments and performance of hydro-power projects in Kenya." International Journal of Research in Business and Social Science (2147- 4478) 10, no. 4 (June 15, 2021): 438–45. http://dx.doi.org/10.20525/ijrbs.v10i4.1210.

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This paper aims (i) to establish the extent to which alternative risk transfer influence the performance of hydroelectric energy projects in Kenya, (ii) to examine how Contingent capital influence the performance of hydroelectric energy projects in Kenya, (iii) to To assess the extent to which Credit enhancement influence performance of hydroelectric energy projects in Kenya, (iv) to determine the extent to which Hedging derivatives influence performance of hydroelectric energy projects in Kenya, (v) to examine how Insurance influence performance of hydroelectric energy projects in Kenya. The study adopted the pragmatism paradigm, mixed-method approach, and descriptive correlational survey design while questionnaires and interview guide were used to collect quantitative and qualitative data from a census of 94 participants. This study recommends that project management and policymakers should integrate appropriate financial risk management instruments to improve the performance of hydroelectric energy projects besides developing targeted policies for strengthening the implementation of the financial risk management instruments to boost investors and lenders confidence
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18

Balzannikov, Mikhail. "SAVING RESOURCES IN THE CONSTRUCTION OF HYDROELECTRIC POWER PLANTS." ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference 1 (June 20, 2019): 20. http://dx.doi.org/10.17770/etr2019vol1.4103.

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The article describes run-of-the-river hydroelectric power plants. The authors specify the importance of performing technical and economic calculations in justifying the large-sized units of the water-supplying channel of a run-of-the-river hydroelectric power plant: turbine pits and suction (discharge) pipes. The study shows that the amount of construction work and the total cost of building a hydroelectric power plant depend on the size of these water supply units. The research objective is to analyze the validity of establishing the main dimensions of the suction pipes for modern technical and economic conditions. The researchers use the discounted income method. The calculations are performed for a hydroelectric power plant with an elbow suction pipe. The analysis of how the operating conditions of a hydroelectric power plant influence the savings of construction resources is carried out. The analysis shows that saving construction resources by reducing the length of the suction pipe is justified if the hydroelectric power plamt is designed to work only at peak power loads. For hydroelectric power plants operating at semi-peak or base power loads, the additional construction costs would be appropriate if leading to the decrease in pressure loss and to the increase in electricity generation.
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19

Potapov, Stepan, Ivan Potapov, Marina Meshalkina, and Dmitry V. Molodtsov. "Laboratory Experiments on the Measurement of the Greenhouse Gases Concentration at the Water-Air Interface by Using a Floating Gas Box Method." Applied Mechanics and Materials 725-726 (January 2015): 1596–601. http://dx.doi.org/10.4028/www.scientific.net/amm.725-726.1596.

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Nowadays the problem of greenhouse gases emission going in the Earth's atmosphere is closely connected with greenhouse effect development. Natural sources of the gases are the main reason of that. They are exactly hydroelectric reservoirs of hydroelectric power plants because the process of methane and carbon dioxide emission moved by the decomposition of the bottom organic substances is still not learned at all. Our main goal is to simulate this process in the laboratory for conducting further experiments at the hydroelectric reservoirs. The floating gas box method is the key point of all the experiment. It allows us to calculate the concentration of the gases emitted in the above-water part of the gas box and determine what kind of equipment we should take to measure the same parameter of the gases at the the hydroelectric reservoirs. If the experiment at the the hydroelectric reservoir goes right and the laboratory results correspond to the original results it will be possible to use the data for other hydroelectric reservoirs with some corrections and specify the information about total greenhouse gases emission in the atmosphere.
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20

Mekonnen, M. M., and A. Y. Hoekstra. "The blue water footprint of electricity from hydropower." Hydrology and Earth System Sciences 16, no. 1 (January 20, 2012): 179–87. http://dx.doi.org/10.5194/hess-16-179-2012.

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Abstract. Hydropower accounts for about 16% of the world's electricity supply. It has been debated whether hydroelectric generation is merely an in-stream water user or whether it also consumes water. In this paper we provide scientific support for the argument that hydroelectric generation is in most cases a significant water consumer. The study assesses the blue water footprint of hydroelectricity – the water evaporated from manmade reservoirs to produce electric energy – for 35 selected sites. The aggregated blue water footprint of the selected hydropower plants is 90 Gm3 yr−1, which is equivalent to 10% of the blue water footprint of global crop production in the year 2000. The total blue water footprint of hydroelectric generation in the world must be considerably larger if one considers the fact that this study covers only 8% of the global installed hydroelectric capacity. Hydroelectric generation is thus a significant water consumer. The average water footprint of the selected hydropower plants is 68 m3 GJ−1. Great differences in water footprint among hydropower plants exist, due to differences in climate in the places where the plants are situated, but more importantly as a result of large differences in the area flooded per unit of installed hydroelectric capacity. We recommend that water footprint assessment is added as a component in evaluations of newly proposed hydropower plants as well as in the evaluation of existing hydroelectric dams, so that the consequences of the water footprint of hydroelectric generation on downstream environmental flows and other water users can be evaluated.
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21

Mekonnen, M. M., and A. Y. Hoekstra. "The water footprint of electricity from hydropower." Hydrology and Earth System Sciences Discussions 8, no. 5 (September 8, 2011): 8355–72. http://dx.doi.org/10.5194/hessd-8-8355-2011.

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Abstract. Hydropower accounts for about 16% of the world's electricity supply. It has been debated whether hydroelectric generation is merely an in-stream water user or whether it also consumes water. In this paper we provide scientific support for the argument that hydroelectric generation is in most cases a significant water consumer. The study assesses the blue water footprint of hydroelectricity – the water evaporated from manmade reservoirs to produce electric energy – for 35 selected sites. The aggregated blue water footprint of the selected hydropower plants is 90 Gm3 yr−1, which is equivalent to 10% of the blue water footprint of global crop production in the year 2000. The total blue water footprint of hydroelectric generation in the world must be considerably larger if one considers the fact that this study covers only 8% of the global installed hydroelectric capacity. Hydroelectric generation is thus a significant water consumer. The average water footprint of the selected hydropower plants is 68 m3 GJ−1. Great differences in water footprint among hydropower plants exist, due to differences in climate in the places where the plants are situated, but more importantly as a result of large differences in the area flooded per unit of installed hydroelectric capacity. We recommend that water footprint assessment is added as a component in evaluations of newly proposed hydropower plants as well as in the evaluation of existing hydroelectric dams, so that the consequences of the water footprint of hydroelectric generation on downstream environmental flows and other water users can be evaluated.
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22

ROMANOV, A. A., O. V. LEONOV, and S. V. EVDOKIMOV. "SEISMIC STABILITY OF THE BASIS GROUNDS AND CONSTRUCTIONS OF BASIC STRUCURESOF THE ZHIGULEVSKAYA HYDROELECTRIC POWER STATION." Urban construction and architecture 1, no. 4 (December 15, 2011): 66–70. http://dx.doi.org/10.17673/vestnik.2011.04.13.

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Here is estimated the dilution danger of a sandy ground in the basis of a dam of the Zhigulevskaya Hydroelectric Power Station and the seismic stability of basic constructions of the Zhigulevskaya Hydroelectric Power Station is analysed. The calculated seismic influence for checking the seismic stability of basic structures of the Zhigulevskaya Hydroelectric Power Station is defined and set.
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23

Rehman, Abdul, Rasim Ozcan, Waqar Badshah, Magdalena Radulescu, and Ilhan Ozturk. "Symmetric and Asymmetric Impacts of Commercial Energy Distribution from Key Sources on Economic Progress in Pakistan." Sustainability 13, no. 22 (November 16, 2021): 12670. http://dx.doi.org/10.3390/su132212670.

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This paper aims to determine the interaction of commercial energy distribution, including the installed capacity of hydroelectric energy, hydroelectric energy generation, the installed capacity of thermal energy, thermal energy generation, the installed capacity of nuclear energy, and nuclear energy generation, with economic progress in Pakistan over the 1970–2019 period. Both linear and non-linear autoregressive distributed lag models were used to ascertain the symmetric and asymmetric short- and long-run effects. The findings from the linear autoregressive distributed lag model analysis revealed evidence that increases in the installed capacity of nuclear energy, alongside higher levels of hydroelectric energy generation and thermal energy generation, have positively affected economic growth in the short run, while a greater installed capacity of nuclear energy has positively affected economic growth in the long run. The findings from the non-linear autoregressive distributed lag model analysis showed that negative shocks to installed capacities related to hydroelectric, thermal, and nuclear energy reduced economic growth, while positive shocks to hydroelectric energy generation and the installed capacity of nuclear energy boosted economic growth in the short run. Furthermore, in the long run, negative shocks to the installed capacities of hydroelectric and thermal energy reduced economic growth, negative shocks to the installed capacity of nuclear energy enhanced economic growth, and positive shocks to hydroelectric energy generation and the installed capacity of nuclear energy have stimulated economic growth in Pakistan.
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24

JERNELIUS, I., W. D. C. MURRAY, and A. H. C. RICHARDS. "MRICA HYDROELECTRIC PROJECT: DESIGN." Proceedings of the Institution of Civil Engineers - Water Maritime and Energy 101, no. 3 (September 1993): 141–55. http://dx.doi.org/10.1680/iwtme.1993.24580.

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25

WILSON, D. D., A. PENMAN, N. G. SWANNELL, M. J. MCCONNELL, J. TATTERSFIELD, J. G. ELDRIDGE, I. W. HANNAH, et al. "CARHUAQUERO HYDROELECTRIC PROJECT. DISCUSSION." Proceedings of the Institution of Civil Engineers - Water Maritime and Energy 112, no. 3 (September 1995): 268–73. http://dx.doi.org/10.1680/iwtme.1995.27889.

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26

Benenson, R. E. "Miniature hydroelectric power demonstration." Physics Teacher 35, no. 4 (April 1997): 233–34. http://dx.doi.org/10.1119/1.2344659.

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27

OZTURK, RECEP, and RECEP KINCAY. "Potential of Hydroelectric Energy." Energy Sources 26, no. 12 (October 2004): 1141–56. http://dx.doi.org/10.1080/00908310490441458.

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28

Florez, Ramiro Ortiz. "Optimization of Hydroelectric Power." IEEE Latin America Transactions 8, no. 5 (September 2010): 542–46. http://dx.doi.org/10.1109/tla.2010.5623507.

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29

Rose, Aaron. "Micro hydroelectric power stations." Engineering Costs and Production Economics 13, no. 2 (January 1988): 155–56. http://dx.doi.org/10.1016/0167-188x(88)90028-6.

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30

Grechnevikov, E. I. "Rebuilding of hydroelectric units in the series of Niva hydroelectric power plants." Hydrotechnical Construction 31, no. 12 (December 1997): 719–21. http://dx.doi.org/10.1007/bf02766225.

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31

Passos de Aragão, Anderson, Patrícia Teixeira Leite Asano, and Ricardo de Andrade Lira Rabêlo. "A Reservoir Operation Policy Using Inter-Basin Water Transfer for Maximizing Hydroelectric Benefits in Brazil." Energies 13, no. 10 (May 18, 2020): 2564. http://dx.doi.org/10.3390/en13102564.

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The Hydrothermal Coordination problem consists of determining an operation policy for hydroelectric and thermoelectric plants within a given planning horizon. In systems with a predominance of hydraulic generation, the operation policy to be adopted should specify the operation of hydroelectric plants, so that hydroelectric resources are used economically and reliably. This work proposes the implementation of reservoir operation rules, using inter-basin water transfer through an optimization model based on Network Flow and Particle Swarm Optimization (PSO). The proposed algorithm aims to obtain an optimized operation policy of power generation reservoirs and consequently to maximize the hydroelectric benefits of the hydrothermal generation system, to reduce the use of thermoelectric plants, the importation and/or energy deficit and to reduce the cost associated with meeting the demand and reduce CO2 emissions from combustion of fossil fuels used by thermoelectric plants. In order to illustrate the efficiency and effectiveness of the proposed approach, it was evaluated by optimizing two case studies using a system with four hydroelectric plants. The first case study does not consider transfer and water and the second case study uses water transfer between rivers. The obtained results illustrate that the proposed model allowed to maximize the hydroelectric resources of a hydrothermal generation system with economy and reliability.
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32

Mukhammadiyev, M., B. Urishev, E. Kan, and K. Juraev. "New Methods of Application of Micro-Hydroelectric Power Plants at Existing Hydraulic Structures: Schemes, Parameters, Efficiency." E3S Web of Conferences 320 (2021): 04009. http://dx.doi.org/10.1051/e3sconf/202132004009.

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The structure of hydraulic structures of power and water management systems includes gates for various purposes, which allow you to regulate and distribute the flow of water in channels and waterworks. Existing gate designs do not provide for the possibility of generating electricity from the water energy of the stream passing through them. In order to convert the hydraulic energy of water passing through the gates into electrical energy a new patented design of the gate is proposed which allows using micro-hydroelectric power plants with a Banki turbine to make more rational use of the hydro resources of energy and water management systems. The proposed design solves the problem of expanding the functionality of the gate and increasing the efficiency of micro-hydroelectric power plants with a reduction in its cost. Areas of application of the new design for the combined use of micro-hydroelectric power plants and hydraulic gates at hydroelectric power systems are also proposed. The technique for determining the technical and economic parameters of micro-hydroelectric power plants installed on flat gates of hydraulic structures is given, and theoretical calculations are performed, which showed that the higher the capacity of micro-hydroelectric power plants, the shorter its payback period.
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33

Newmiller, Jeanette, Wesley Walker, William E. Fleenor, and Nicholas Pinter. "Case Study: Reconstructing the 2015 Dulcepamba River Flood Disaster." Environmental and Engineering Geoscience 26, no. 4 (May 18, 2020): 393–404. http://dx.doi.org/10.2113/eeg-2337.

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ABSTRACT In March 2015, the village of San Pablo de Amalí on the Dulcepamba River in Ecuador was hit by a flood that killed three residents, destroyed five homes, and eroded several hectares of farmland. Residents asserted that the recent construction of a run-of-the-river hydroelectric facility built in the river channel directed flood flows toward the village, causing the associated damage and fatalities. We conducted a forensic hydrologic and hydraulic analysis of the catchment to assess potential causal mechanisms affecting flooding, including the construction of the hydroelectric facility. Hydrologic analysis demonstrated that the river flows produced by the March 2015 storm were equivalent to a 6-year return interval event, with a discharge of 58.6 cms, not the much more extreme 33-year return interval, 400-cms event that had been suggested in a report produced by the hydroelectric company. Hydraulic modeling determined an ∼2-m elevation surcharge of water attributable to the hydroelectric facility, suggesting that damage to the village would not have occurred without the obstruction created by debris blockage of the hydroelectric plant intake. Hydrologic modeling also quantified monthly totals of water availability in the Dulcepamba watershed, including average dry-season flow volumes. When compared to flow volumes allocated to the hydroelectric operator, the modeling indicated that the seasonal water availability in the Dulcepamba watershed is not sufficient to collectively meet the minimum in-stream environmental flow requirements, the agriculture demands from local subsistence irrigators, and the flow volumes allocated to the hydroelectric operator.
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34

Gunduz, Murat, and Haci Bayram Sahin. "AN EARLY COST ESTIMATION MODEL FOR HYDROELECTRIC POWER PLANT PROJECTS USING NEURAL NETWORKS AND MULTIPLE REGRESSION ANALYSIS." Journal of Civil Engineering and Management 21, no. 4 (March 30, 2015): 470–77. http://dx.doi.org/10.3846/13923730.2014.890657.

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Energy is increasingly becoming more important in today’s world, whereas energy sources are drastically decreasing. One of the most valuable energy sources is hydro energy. Because of limited energy sources and excessive energy usage, cost of energy is rising. Among the electricity generation units, hydroelectric power plants are very important, since they are renewable energy sources and they have no fuel cost. To decide whether a hydroelectric power plant investment is feasible or not, project cost and amount of electricity generation of the investment should be precisely estimated. In this paper, fifty four hydroelectric power plant projects are analysed by using multiple regression and artificial neural network tools. As a result, two cost estimation models have been developed to estimate the hydroelectric power plant project cost in early stages of the project.
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35

Bondarenko, V. B. "Dual-Delivery Turbine Scrolls in Large Hydroelectric Units of Underground Hydroelectric Power Plants." Power Technology and Engineering 51, no. 4 (October 13, 2017): 410–13. http://dx.doi.org/10.1007/s10749-017-0847-3.

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36

Li, Ming, Xue Feng Yu, and Yuan Dong Wei. "Application of Fuzzy Recognition Model for the Diversion Structures Safety Evaluation at Small Hydropower Stations." Applied Mechanics and Materials 687-691 (November 2014): 3686–90. http://dx.doi.org/10.4028/www.scientific.net/amm.687-691.3686.

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In this passage is about the safety evaluation on the conveyance structure of small hydroelectric power station. Applying Binary comparative indicators to determine the weights and fuzzy recognition model on the conveyance structure of small hydroelectric power station’s assessment. Compared other models with fuzzy recognition model which will be explained in detail in the next section on a specific small hydropower station. The results show that the fuzzy recognition model is feasible and effective on safety evaluation on the conveyance structure of the hydroelectric power station.
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37

CHERNYH, O. N., A. V. BURLACHENKO, V. V. VOLSHANIK, and U. H. UMARU HAMANJODA. "ASSESSMENT OF JOINT OPERATION OF HYDRAULIC AND SOLAR POWER PLANTS OF COMPLEX HYDRAULIC UNITS." Prirodoobustrojstvo, no. 4 (2021): 67–74. http://dx.doi.org/10.26897/1997-6011-2021-4-67-74.

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The results of the assessment and analysis of the operating modes of the power complex with the constructive and technological combination of hydraulic power plants (HPPs) with solar power plants (SFEU) in the presence of seasonal or daily regulation in the environmental hydro system are presented. The aspects of the operation of a hydroelectric power station with non-self-regulating derivation are considered in detail: when working in a load schedule with a maximum power equal to the installed one, and when the average daily power along the watercourse is approaching the provided one. It was found that in the first case, the influence of the SPEU regime on the joint work with the hydroelectric power station is to move a part of the load graph of the hydroelectric power plant with the maximum power to the base part of the schedule. In the second case, the influence of the SPEU mode consists in changing the variable part of the load graph, but the HPP, in contrast to the first case, retains its position in the load graph of the power system. The mode of operation of the hydroelectric power station becomes more uniform and at the same time, a smaller volume of the daily regulation basin (DRB) is required. For the example considered, the maximum power of the hydroelectric power station during the day increased from 50 MW to 54 MW. It has been revealed that even with the production of SPEU in 18% of the daily production of hydroelectric power plants, the volume of DRB is required approximately two times less. As a result, it is possible to increase the operating head at the hydroelectric power station and obtain the corresponding effect on power and electricity generation.
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38

Ogezi, Odatse-Peters, Rabo Dakare, and Herry Eggon. "IMPACT OF PETROLEUM ELECTRICITY AND HYDROELECTRIC AND CONSUMPTION ON ECONOMIC GROWTH IN NIGERIA." International Journal of Advanced Research in Social Sciences, Environmental Studies & Technology 7, no. 1 (March 7, 2022): 17–33. http://dx.doi.org/10.48028/iiprds/ijarssest.v7.i1.02.

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The study examined the impact of hydroelectric and petroleum electricity consumption on economic growth in Nigeria. The research design adopted for the study was ex-post-facto. The data used for the study were drawn from secondary sources. The sources of data were from World Bank statistical database and CBN Statistical Bulletin (2020) for a period of between 1990 and 2019. Based on the research objectives and unit root test of the study, the Autoregressive Distributed Lagged (ARDL) and the Error Correction Model (ECM) were used to determine the relationship between hydroelectric and petroleum electricity consumption variables and economic growth indicators in Nigeria and the impact of hydroelectric and petroleum electricity consumption on economic growth in Nigeria. The Error Correction Model (ECM) of the study and after examining the long-run impact of the independent variables in the model of the impact of hydroelectric and petroleum electricity consumption on economic growth in Nigeria. The result shows that the ECM parameters were negative (-) and significant which are given -0.546. This means that 55 percent disequilibrium in the previous period is being corrected to restore equilibrium in the current period in the respective models. The ARDL long-run results on the impact of hydroelectric and petroleum electricity consumption on economic growth in Nigeria revealed that hydroelectric and Petroleum Electricity Consumption have positive and significant impact on real gross domestic product in Nigeria. Therefore, the study recommended that the government should increase the hydroelectric and petroleum electricity consumption in Nigeria by reducing the unit price of the petroleum electricity consumption in Nigeria in other to increase the household and industrial usage for increase economic activities through the household and industrialisation in Nigeria through the firms and young industries in Nigeria which in turn increase the sustainable economic growth in Nigeria.
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39

CHERNYH, O. N., A. V. BURLACHENKO, and V. V. VOLSHANIK. "PROSPECTS FOR COMBINING SOLAR PLANTS WITH STRUCTURAL ELEMENTS OF ENVIRONMENTAL HYDRAULIC FACILITIES AND COMPLEXES." Prirodoobustrojstvo, no. 2 (2021): 57–65. http://dx.doi.org/10.26897/1997-6011-2021-2-57-65.

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The issues of solving modern problems related to meeting the energy needs of environmental hydraulic engineering are considered. The problem of improving the methodological basis for choosing the optimal arrangement of elements of photovoltaic devices (SPEU) on the blocks of the dam building of hydroelectric power plants (HPP) of 4 main types is formulated. The graphical dependences of the estimation of the power ratio of the combined SPEU and HPP on the diameter of the turbine wheel are analyzed. As a result of the analysis of the influence of the location of the transformer on the possibility of placing the SPEU on the buildings of the hydroelectric power station, it was revealed that in order to increase the adaptability of the revitalized even large hydro system with a separate building of the hydroelectric power station, it is preferable to place power transformers from the downstream side. It is noted that according to the results of the schematic study for the medium-pressure hydroelectric complex Lagdo in the north of Cameroon, the placement of solar cells will provide an additional 6.95% of the capacity of the operating hydroelectric power station.
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40

Kozhevnikov, Egor. "DEVELOPMENT OF MICROHYDROPOWER PLANTS FOR SMALL RIVERS IN THE CHELYABINSK REGION MINING ZONE." Bulletin of the South Ural State University series "Power Engineering" 22, no. 1 (March 2022): 5–11. http://dx.doi.org/10.14529/power220101.

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Small hydroelectric power generation is attractive from both an environmental and economic point of view. Technological innovations and mitigation measures are making small hydroelectric power plants an inexpensive and viable source of renewable energy which can be generated independently. They contribute not only to environmental protection, but also reduce human dependence on fossil fuels. This study is dedicated to finding solutions based on renewable energy source technologies and innovations using the example of the Chelyabinsk region. The experimental model of a micro-hydroelectric power station water wheel presented in this article, and the studies carried out on the basis of this model were used to carry out preliminary calculations. As a result, we found that such micro-hydroelectric power plants are capable of generating about 9–13 kW∙h, about 170–266 kW∙h/day and from 63 to 99 MW∙h/year.
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41

Dębowski, Piotr, Rafał Bernaś, Michał Skóra, and Jacek Morzuch. "Route selection, migration speed, and mortality of silver eel passing through two small hydroelectric facilities." Fisheries & Aquatic Life 28, no. 3 (November 18, 2020): 133–40. http://dx.doi.org/10.2478/aopf-2020-0016.

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AbstractThe European eel is a highly threatened species according the European Inland Fisheries Advisory Commission (EIFAC) and the Food and Agriculture Organization of the United Nations (FAO). The recruitment of this species has collapsed over the last fifty years primarily because of the destruction of free migration routes and overfishing. One of the most important factors linked to population decline is mortality during catadromous migration caused by hydroelectric facilities. The aim of the present study was to assess the mortality rate of silvers eel passing through two small hydroelectric facilities. Total mortality at the site was 5%, but it was 15% for fish passing through the two hydroelectric facilities. However, the cumulative mortality in the river basin studied, which has many hydroelectric facilities, indicated that silver eel escapement from the Słupia drainage basin was very low.
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42

Hernández-Gutiérrez, José Carlos, José Antonio Peña-Ramos, and Victor I. Espinosa. "Hydro Power Plants as Disputed Infrastructures in Latin America." Water 14, no. 3 (January 18, 2022): 277. http://dx.doi.org/10.3390/w14030277.

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Non-violent methods can strongly support achieving the 2030 Agenda of sustainable development goals, increasing energy efficiency and access in the poorest countries. However, hydroelectric power stations are disputed strategic elements in any region of the world. This paper analyzes, firstly, the role of hydroelectric power stations as elements that have been generating conflicts in Latin America in the period 1982–2018 and, secondly, the conflicts themselves. The results show that indigenous peoples face the most significant risks from constructing dams and, consequently, they are the primary opponents of hydroelectric projects.
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43

Ramírez, Duván, and Luis Alfredo Muñoz Velasco. "Hydroelectric centrals’ impact on territorial sustainability: analysis in southern Colombia." Miscellanea Geographica 24, no. 2 (April 30, 2020): 73–84. http://dx.doi.org/10.2478/mgrsd-2020-0010.

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AbstractThis study evaluates sustainability in the Huila Department in southern Colombia following the construction of two hydroelectric plants. This evaluation is based on the Sepúlveda (2008) sustainability analysis model, which is especially suited to Latin American rural territories. The importance of this evaluation of sustainability in the Huila region stems from the environmental crisis that, according to various regional stakeholders, has been caused by the construction of the two hydroelectric plants. The results of this investigation indicate that the sustainability of the region is at risk because of these hydroelectric projects.
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44

Pavelko, A., and M. Syrotyuk. "Environmental risks in hydropower industry." Visnyk of the Lviv University. Series Geography, no. 45 (May 20, 2014): 178–84. http://dx.doi.org/10.30970/vgg.2014.45.1163.

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The main theoretical aspects of the environmental risks as a scientific category, the definition of environmental risk in the Ukrainian legislation, as well as major environmental risks associated with the construction and operation of hydroelectric power have been described. Taking into account the largescale plans of the hydroelectric power plants building in Ukraine after the implementation of "green" tariff the determination and issue the appropriate environmental risks assessment is crucial for making the reasonable management decisions on the construction of hydroelectric power or abandon it. Key words: environmental risk, hydropower plant.
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45

Konovalova, O. E. "RENEWABLE RIVER RESOURCES OF THE MURMANSK REGION AND THEIR USE IN THE ENERGY SECTOR: YESTERDAY, TODAY, TOMORROW." Север и рынок: формирование экономического порядка 69, no. 3/2020 (November 27, 2020): 144–56. http://dx.doi.org/10.37614/2220-802x.2.2020.69.010.

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The development of water resources for power generation is often crucial for the socio-economic development of entire regions. This is especially important for the development of the Russian Arctic, where hydroelectric resources are poorly developed. The purpose of the study is to assess the impact of consequences of changes in the hydrological characteristics of watercourses on the development of small and micro-energy in the region. Based on long-term hydrological data from 22 observation posts covering the period from 1946 to 2013 the annual river flow module of the Murmansk region was calculated using statistical data processing methods, and a modern map-scheme of changes in the annual river flow module of the region was constructed using the comparative geographical method and the method of cartographic generalization. A quantitative assessment of the water resources of the Murmansk region, which is part of the Russian Arctic, is given. The distribution of the average annual river flow over the area is shown. The influence of climate changes on water content and river flow regime in the Murmansk region is estimated. The hydropower resources of the rivers of this region have been determined. The history of the creation of the hydropower industry on the Kola Peninsula and the possibilities of developing hydropower in the near future are considered. The main indicators of the operating hydroelectric power plants (HPP) of the Murmansk region are presented. The role of small and micro-hydroelectric power plants in the development of the power system is determined. Promising options for the creation of small hydroelectric power plants in remote villages of the region are shown, and their technical and economic indicators are given. It is found out that the total integrated effect from the construction of these hydroelectric power plants will amount to 354 and 594 million rubles respectively. Development directions of micro-hydroelectric power plants in the Murmansk region are identified. Micro-hydroelectric power plants will provide electricity to small villages, dacha cooperatives and farms. Small and micro-hydroelectric power plants can be used for elaboration of strategies and plans for socio-economic development of the Murmansk region and its small settlements, as well as plans for development of the tourism industry in the region.
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46

Kuban, Nurdan. "Hydroelectric Plants and Dams as Industrial Heritage in the Context of Nature-Culture Interrelation: An Overview of Examples in Turkey." Energies 14, no. 5 (February 26, 2021): 1281. http://dx.doi.org/10.3390/en14051281.

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The article investigates nature–culture interrelation over the case studies of hydroelectric plants of the 20th century. In many cases, construction of these structures has evidently resulted in irreversible changes in natural and cultural environments. However, they have also supplied energy for the industrialization of civilizations. After approximately 100 years of existence, it is crucial to determine the future of these hydroelectric facilities, which are artifacts of industrial heritage approaching the end of their productive life spans. The article proposes an analytical approach aiming to sustain the integrity of nature and culture in the conservation of hydroelectric plants, presenting these energy facilities as cultural properties of industrial heritage, and discussing the impact of hydroelectric dams on natural and cultural environments, along with the effects of nature in the deterioration of these structures in order to pave the way to an optimized and sustainable future for the heritage of energy.
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47

de Santis, Rodrigo Barbosa, and Marcelo Azevedo Costa. "Extended Isolation Forests for Fault Detection in Small Hydroelectric Plants." Sustainability 12, no. 16 (August 10, 2020): 6421. http://dx.doi.org/10.3390/su12166421.

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Maintenance in small hydroelectric plants is fundamental for guaranteeing the expansion of clean energy sources and supplying the energy estimated to be necessary for the coming years. Most fault diagnosis models for hydroelectric generating units, proposed so far, are based on the distance between the normal operating profile and newly observed values. The extended isolation forest model is a model, based on binary trees, that has been gaining prominence in anomaly detection applications. However, no study so far has reported the application of the algorithm in the context of hydroelectric power generation. We compared this model with the PCA and KICA-PCA models, using one-year operating data in a small hydroelectric plant with time-series anomaly detection metrics. The algorithm showed satisfactory results with less variance than the others; therefore, it is a suitable candidate for online fault detection applications in the sector.
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48

Gordon, J. L., and D. H. Whitman. "Generator inertia for isolated hydropower systems." Canadian Journal of Civil Engineering 12, no. 4 (December 1, 1985): 814–20. http://dx.doi.org/10.1139/l85-095.

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Speed regulation of hydroelectric power plants of isolated systems is a complex subject, which is now becoming more important as customers install computers, stereophonic equipment, and advanced satellite dish electronic equipment in such systems. This paper presents a methodology for determining hydroelectric generator inertia, based on theoretical analysis, coupled with a review of data from over 50 hydroelectric projects with units having capacities between 2 and 300 MW. The parameters that affect generator inertia—system size, allowable frequency variation, type of load, turbine and governor, water column start time, governor time, and relief valve operation— are all discussed. A chart combining these parameters is developed, on which data from hydro projects is plotted. From an analysis of the plotted data, an empirical equation is developed for the generator inertia as a function of the aforementioned parameters. Key words: hydroelectric power, generator inertia, speed regulation, hydro design.
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49

Ageev, S., Ju Voronina, A. Sitnov, and Yu Bik. "Assessment of the possibility of operating low-pressure hydroelectric facilities in order to improve the conditions of navigation in their lower reaches." Journal of Physics: Conference Series 2131, no. 3 (December 1, 2021): 032073. http://dx.doi.org/10.1088/1742-6596/2131/3/032073.

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Abstract The paper provides an assessment of the projected low-pressure hydroelectric facility operation on the Volga River from the point of view of navigation conditions in its lower reach. The operating mode of the low-pressure hydroelectric facility completely depends on the hourly discharges of the Nizhny Novgorod HPP, located upstream. Significant unevenness in time of the supplied discharges from the Nizhny Novgorod HPP, which, repeating itself when discharging flows into the lower reach of the Nizhniy Novgorod low-pressure hydroelectric facility, can lead to negative consequences for shipping in terms of failure to provide transport passes and necessary depths. It is proposed to reduce the unevenness of discharges by introducing diurnal flow regulation into the low-pressure hydroelectric facility operation, aimed at changing the hydrological regime of the river section to improve the conditions and organize uninterrupted and safe navigation in the lower reach. Achievement of the regulation goal associated with minimization of interval deviations of the supplied flow rates from Nizhny Novgorod HPP from the daily average values and the fulfillment of the restrictions on the hydrological regime of the low-pressure hydroelectric facility ponds, is achieved by two control options (three-stage and two-stage). The study used the methods of mathematical statistics and probability theory, optimization of management decisions. The methodology of the mathematical model limitations’ nonfulfillment elimination for solving the problem and optimization of the low-pressure hydroelectric facility daily hydrograph is presented. Using a specific example, the problem of diurnal regulation of discharges is solved and the obtained effect is described.
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Rosenberg, D. M., F. Berkes, R. A. Bodaly, R. E. Hecky, C. A. Kelly, and J. WM Rudd. "Large-scale impacts of hydroelectric development." Environmental Reviews 5, no. 1 (March 1, 1997): 27–54. http://dx.doi.org/10.1139/a97-001.

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The substantial size of some hydroelectric projects and the extensive total surface area covered by reservoirs globally require that research determining the impacts of these developments be done at ever-increasing spatial and temporal scales. As a consequence of this research, new views are emerging about the spatial extent and longevity of the environmental and social impacts of such developments. New findings challenge the notion of hydroelectric development as a benign alternative to other forms of power generation. This review examines the intertwined environmental and social effects of methylmercury bioaccumulation in the food web, emission of greenhouse gases from reservoirs, downstream effects of altered flows, and impacts on biodiversity, each of which operates at its own unique spatial and temporal scales. Methylmercury bioaccumulation occurs at the smallest spatial and temporal scales of the four impacts reviewed, whereas downstream effects usually occur at the largest scales. Greenhouse gas emissions, the newest surprise connected with large-scale hydroelectric development, are relatively short term but eventually may have important global-scale consequences. Limitation of biodiversity by hydroelectric development usually occurs at intermediate spatial and temporal scales. Knowledge developed from working at expanded spatial and temporal scales should be an important part of future decision making for large-scale hydroelectric development.
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