The Impact of Hydroelectric Power Plants on a Mountainous Environment: A Technique for Assessing Environmental Impacts

1983 ◽  
Vol 3 (2) ◽  
pp. 157
Author(s):  
Simon Aegerter ◽  
Paul Messerli
Keyword(s):  
Environmental Impacts ◽  
Power Plants ◽  
Hydroelectric Power ◽  
Hydroelectric Power Plants ◽  
The Impact

scholarly journals ASSESSMENT OF THE IMPACT OF CONSTRUCTION OF A SMALL HYDROELECTRIC POWER STATIONON THE QUALITY OF ATMOSPHERIC AIR

2020 ◽  
Vol 1 (5) ◽  
pp. 202-206
Author(s):  
B.M. Khuchunaev ◽  
◽  
А. Tashilova ◽  
L. A. Kesheva ◽  
N. V. Teunova ◽  
...  
Keyword(s):  
Power Plants ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Point Of View ◽  
Environmental Damage ◽  
Hydroelectric Power ◽  
Negative Consequences ◽  
Initial State ◽  
Hydroelectric Power Plants ◽  
The Impact

Environment – a set of components of the natural environment, natural and natural-anthropogenic objects, as well as anthropogenic objects. When carrying out any construction work, it is necessary to assess the impact of emissions of pollutants on the environment. One of the features of the energy sector at the beginning of the 21st century is the strict regulation of its further development with the requirements of preserving a favorable environment and preventing global pollution. This determines the trend towards an increasing role of renewable energy sources and, first of all, the most efficient hydropower. In the world, small energy began to develop in recent decades, this is mainly due to the desire to avoid environmental damage caused by reservoirs of large hydroelectric power plants, with the ability to guarantee energy supply in isolated and inaccessible areas. The creation of small hydroelectric power plants instead of small power plants operating on fossil fuels leads to a significant improvement in the air basin. This article provides an assessment of the ecological state of the territory from the point of view of the possibility of construction of the object and a preliminary qualitative forecast of possible changes in the environment during the implementation of the planned construction works and its negative consequences. Based on the analysis of the initial state of the environment and the forecast of its resistance to man-made impacts, the assessment of the possible impact of the construction object on the environment in accordance with the requirements for environmental documentation was carried out.

scholarly journals Attributes and Magnitude of the Socio-Environmental Impacts in Environmental Impact Study and Environmental Impact Report (EIS/EIR) of two small Hydroelectric Power Plants

2020 ◽  
Vol 42 ◽  
pp. e22
Author(s):  
Carolina Faccio Demarco ◽  
Thays França Afonso ◽  
Patricia Damasceno Ribeiro ◽  
Cassia Brocca Caballero ◽  
Robson Andreazza ◽  
...  
Keyword(s):  
Environmental Impact ◽  
Environmental Impacts ◽  
Low Income ◽  
Power Plants ◽  
Minas Gerais ◽  
Hydroelectric Power ◽  
Impact Study ◽  
Socioeconomic Impacts ◽  
Minas Gerais State ◽  
The Impact

Both SHPs selected for this study SHP Cabuí (southeast of Minas Gerais state) and SHP Caiçara (northern Minas Gerais state) are located in low-income regions. This study aimed to evaluate the approach used to describe the socio-environmental impacts - through the analysis of attributes and magnitude of impacts - of these two projects and for this, consultations were carried out on the Environmental Impact Studies (EIS) presented by these SHPs, as well as the technical opinions available on the website of the agency responsible for environmental licensing (IBAMA). It was verified that the socio-environmental approaches of the SHPs differed in some aspects. PCH Cabuí, whose previous license was deferred, used more attributes to describe the socioeconomic impacts and the explanation of the impact assessment was more detailed and easy to understand, while the EIS of the Caiçara SHP (previous license rejected) was more succinct in its attributes for the description of the socioeconomic impacts, not adequately presenting the valuation and meaning of its impacts. There is also evidence of the need to improve public participation in both projects. 

scholarly journals Availability Projections of Hydroelectric Power Plants through Monte Carlo Simulation

Energies ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 8398
Author(s):  
Marcos Tadeu Barros de Oliveira ◽  
Patrícia de Sousa Oliveira Silva ◽  
Elisa Oliveira ◽  
André Luís Marques Marcato ◽  
Giovani Santiago Junqueira
Keyword(s):  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Power Plants ◽  
Hydroelectric Plant ◽  
Real Data ◽  
Hydroelectric Power ◽  
Maintenance Schedule ◽  
Hydroelectric Power Plants ◽  
Hydroelectric Plants ◽  
The Impact

The present work proposes a Monte Carlo Simulation (MCS) to obtain availability projections for Hydroelectric Power Plants (HPP), based mainly on regulatory aspects involving the Availability Factor (AFA). The main purpose of the simulation is to generate scenarios to obtain statistics for risk analysis and decision-making in relation to the HPP. The proposed methodology consists of two steps, firstly, the optimization of the maintenance schedule of the hydroelectric plant is carried out, in order to allocate the mandatory maintenance in the simulation horizon. Then, for the MCS, scenarios of forced shutdowns of the Generating Units (GU) will be generated, which directly influence the operation and, consequently, the availability of the HPP. The scenarios will be inserted into an operation optimization model, which considers the impact of forced shutdown samples on the MCS. The proposed modeling was applied using real data from the Santo Antônio HPP, which is one of the largest hydroelectric plants in Brazil.

scholarly journals Potential impact of small hydroelectric power plants on river biota: a case study on macroinvertebrates associated to basaltic knickzones

2019 ◽  
Vol 79 (4) ◽  
pp. 722-734 ◽  
Author(s):  
A. M. C. Ruocco ◽  
J. L. Portinho ◽  
M. G. Nogueira
Keyword(s):  
Power Plants ◽  
River Flow ◽  
Hydroelectric Power ◽  
Protection Measures ◽  
Mean Values ◽  
Composition And Structure ◽  
Hydroelectric Power Plants ◽  
Original Rock ◽  
Natural Dynamics ◽  
The Impact

Abstract Small hydroelectric power plants (SHP) have been considered as an alternative for the generation of electricity with reduced environmental impacts. Nevertheless, no studies have addressed changes in a particular kind of river macrohabitat commonly affected by SHPs, the knickzones. This study aimed to assess the impact of a SHP construction on the aquatic macroinvertebrate fauna associated with two basaltic knickzones located in Sapucaí-Mirim River, Southeast Brazil. The first, considered as a functional knickzone, follows the natural dynamics of the river flow and preserves the original rock substrate. The second, considered as non-functional knickzone, was permanently flooded after the SHP construction and the consolidated rock substrate was changed by fine sediment. Sampling was carried out in two seasonal periods and the data were analysed through multivariate analysis. It was observed differences in composition and structure of the macroinvertebrates community between the knickzones and periods. The functional knickzone exhibited a much higher richness, 72 taxa compared to 44 in the non-functional, as well as a large number of exclusive taxa (38, being only nine exclusive to the non-functional). Diversity, equitability and density mean values were also higher in the functional knickzone. The limnological parameters varied significantly between dry and rainy seasons but not between the distinct knickzones. This kind of macrohabitats and its potential role for the rivers biodiversity is practically unknown. In the scenery of fast SHP expansion, further studies and protection measures are necessary.

scholarly journals Information support of intellectual energy systems and its impact on ensuring balance reliability

2019 ◽  
Vol 139 ◽  
pp. 01005
Author(s):  
Yuri Chukreyev ◽  
Mikhail Chukreyev
Keyword(s):  
Energy Supply ◽  
Power Plants ◽  
Energy Systems ◽  
Information Support ◽  
Hydroelectric Power ◽  
Power Stations ◽  
Hydroelectric Power Plants ◽  
Reported Data ◽  
The Impact

The is UPS of the impact of accounting for the energy supply of hydroelectric power plants on the means of ensuring the balance reliability of the UPS of Russia for the conditions of conducting commercial power take-offs are considered. The analysis of predicted and reported data on the generation of electricity at hydroelectric power stations and their impact on the rationale for backup tools.

scholarly journals Influence of Debris on Water Intake Gratings in Small Hydroelectric Plants: An Experimental Study on Hydraulic Parameters

Energies ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 3248
Author(s):  
Natalia Walczak ◽  
Zbigniew Walczak ◽  
Jakub Nieć
Keyword(s):  
Power Plants ◽  
Water Pressure ◽  
Negative Influence ◽  
Economic Losses ◽  
Hydroelectric Power ◽  
Plant Debris ◽  
Mountainous Regions ◽  
Hydroelectric Power Plants ◽  
Hydroelectric Plants ◽  
The Impact

Deposition of debris on the screens of hydroelectric power plants translates into measurable economic losses. Occurring plant debris, although it is an organic material, is characterised by different forms and structure. It is often leaves, branches, and grasses in lowland areas, while in mountainous regions, broken boughs and trees can be expected. On the trash racks of power plants, debris may be deposited in different forms, shapes, and places. This work aims to determine the impact of the degree of submergence of debris on the values of the force acting on the racks. This paper analyzes the influence of the rectangular shape of the debris deposited on the trash racks and its degree of submergence and weight on the obtained values of the force acting on the racks as a result of water pressure, which directly affects the hydraulic losses and productivity of hydroelectric power plants. Our research confirms the negative influence of the deposited plant debris on the value of forces recorded on the gratings. The increase in the recorded force, and thus the resistance on the grating, is obviously dependent on the degree of obstruction of the debris by the grating obtained by changing the degree of debris immersion and its weight. In the case of changing the degree of submergence, the increase in force recorded on the gratings varied during the experiment from about 25% recorded for the fully submerged debris compared to that of the partially submerged debris for the mass of 100 g; in comparison, an increase of about 31% was recorded for that of the mass of 200 g. However, comparing the values of the forces recorded on the obstructed grids to that of the forces recorded on the clean grids, the increase ranged from about 15–53%.

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