scholarly journals Strategic Operation of Hydroelectric Power Plants in Energy Markets: A Model and a Study on the Hydro-Wind Balance

Fluids ◽  
2020 ◽  
Vol 5 (4) ◽  
pp. 209
Author(s):  
Hugo Algarvio ◽  
Fernando Lopes ◽  
João Santana
Keyword(s):  
Renewable Energy ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Hydroelectric Power ◽  
The European Union ◽  
Hydro Power ◽  
Market Prices ◽  
Hydroelectric Power Plants ◽  
Multi Agent ◽  
Hydro Power Plants

The European Union defined ambitious targets for the production of energy from renewable energy sources. Most European markets trade now high levels of variable renewable energy (VRE). Renewable generation increases the variability and uncertainty of the net-load (i.e., demand minus VRE). To a large extent, this variability and uncertainty can be compensated by hydroelectric power plants. Typically, hydro power producers (HPPs) consider the periods of time with low market prices (and normally low demand and/or high VRE production) to pump, and the periods with high market prices (and normally high demand and/or low VRE production) to produce energy. This article presents a model for hydro power plants and a study to analyse the hydro-wind balance in a real-world setting, namely a simplified version of the Portuguese power system, involving a significant penetration of hydro and wind power (more than 50%). The study is conducted with the help of the multi-agent system MATREM. The results confirm (and rebut) the typical behavior of hydroelectric power plants (to produce energy, to pump water or to stay idle).

scholarly journals Hydroelectric Power Plants ’ Re Servoirs And Their Impact On The Environment

2015 ◽  
Vol 1 ◽  
pp. 171 ◽  
Author(s):  
M. I. Balzannikov ◽  
E. G. Vyshkin
Keyword(s):  
Renewable Energy ◽  
Power Plant ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Hydroelectric Power Plant ◽  
Energy Sources ◽  
Hydroelectric Power ◽  
Hydroelectric Power Plants ◽  
Different Types ◽  
The Way

The paper presents the analysis of different types of impact the hydroelectric power plants’ reservoirs could make on the environment. Hydroelectric power plants (HPP) produce ecologically safe energy and correspond to the modern striving for sustainability because they are operated on renewable energy sources. At the same time they can provoke various potential dangers for the environment. The objective of the investigation is to demonstrate the interrelation between the type and structure of a hydroelectric power plant and the way its reservoir may impact on the nature surrounding the plant. These effects may be direct and indirect, positive and negative and vary from insignificant that can be easily fixed to those that are irreversible and catastrophic. The latter should be taken into account during the design of HPP.

scholarly journals Impact of new power investments up to year 2020 on the energy system of Bosnia and Herzegovina

2015 ◽  
Vol 19 (3) ◽  
pp. 771-780 ◽  
Author(s):  
Zihnija Hasovic ◽  
Boris Cosic ◽  
Adisa Omerbegovic-Arapovic ◽  
Neven Duic
Keyword(s):  
Renewable Energy ◽  
Bosnia And Herzegovina ◽  
Power Plants ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Energy System ◽  
Energy Potential ◽  
Hydro Power ◽  
Thermal Plant ◽  
Hydro Power Plants

This paper investigates current and planned investments in new power plants in Bosnia and Herzegovina and impact of these investments on the energy sector, CO2 emission and internationally committed targets for electricity from renewable sources up to year 2020. Bosnia and Herzegovina possesses strong renewable energy potential, in particular hydro and biomass. However, the majority of energy production is conducted in outdated power plants and based on fossil fuels, resulting in environment pollution. New major investments The Stanari Thermal plant (300 MW) and the investment in Block 7 (450 MW) at the Thermal Plant Tuzla are again focused on fossil fuels. The power sector is also highly dependent on the hydrology as 54% of current capacities are based on large hydro power. In order to investigate how the energy system of Bosnia and Herzegovina will be affected by these investments and hydrology, the EnergyPLAN model was used. Based on the foreseen demand for year 2020 several power plants construction and hydrology scenarios have been modelled to cover a range of possibilities that may occur. This includes export orientation of Stanari plant, impact of wet, dry and average year, delayed construction of Tuzla Block 7, constrained construction of hydro power plants, and retirement of thermal units. It can be concluded that energy system can be significantly affected by delayed investments but in order to comply with renewables targets Bosnia and Herzegovina will need to explore the power production from other renewable energy sources as well.

Study on the Actual Energy Potential of Renewable Sources of Energy in Romania

2019 ◽  
Vol 34 ◽  
pp. 209-214
Author(s):  
Mariana Ciobanu ◽  
Ionela Gabriela Bucşe ◽  
Stefan Radu
Keyword(s):  
Renewable Energy ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Eastern European Country ◽  
Green Energy ◽  
Full Potential ◽  
Energy Potential ◽  
Hydro Power ◽  
Internal Resources ◽  
Hydro Power Plants

Romania was the first Eastern European country to be has joined the Partnership for Renewable Energy and Energy Efficiency. The potential of Romania in the field of green energy production is as follows: 65% biomass, 17% wind energy, 12% solar energy, 4% micro hydro power plants, 1% + 1% photovoltaic + geothermal. Maximizing the full potential on the various green energy categories require serious investment and requires facilities granted to investors in this sector. Renewable energy sources can effectively contribute to increasing internal resources, which gives them a certain priority in energy policy.

scholarly journals THE SELECTION OF A SMALL HYDRO POWER PLANT (SHPP) SOLUTION IN LINE WITH THE ECOSYSTEM

2019 ◽  
pp. 229
Author(s):  
Zivojin Stamenkovic ◽  
Dragan Svrkota
Keyword(s):  
Renewable Energy ◽  
Environmental Protection ◽  
Energy Demand ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Design Solution ◽  
Energy Sources ◽  
Technical Solution ◽  
Hydro Power ◽  
Hydro Power Plants

Population growth and new forms of energy use have the effect that the energy demand grows year after year. The harmful influence of the use of fossil and nuclear fuels has influenced the intensive development of renewable energy sources (solar energy, small hydro power plants, wind energy, bio-renewable sources - biomass, geothermal energy). This paper gives an overview of the choice of design solution, technical parameters and the efficiency of small hydro power plants (SHPP) on small watercourses. Special attention in these considerations is dedicated to harmonization of selected solutions with natural resources and protection of ecosystems. In order to define the technical solution of one small HPP on a small watercourse, the following analyzes and studies need to be done: Hydrological study; Analysis of the available hydro potential; Pre-feasibility study of the chosen technical solution; Study on Environmental Impact Assessment; Analysis of the investment value of the elements of the system and the system as a whole; Analysis of annual fees and expenses. In analyzing the available hydro potential, it is necessary to examine in detail the influence of the minimum sustainable flow rate in the watercourse (biological minimum) both from the aspect of environmental protection and from the aspect of the techno-economic justification for SHPP construction. On the basis of the "cross-cutting" of the results of these analyzes, one can see the techno-economically justified solution for the construction of SHPP in line with the ecosystem. The goal of all previous analyzes is to select a technical solution that maximizes the use of hydro power potential and ensures optimum use of renewable energy sources, while paying special attention to ecology, environmental protection and sustainable development.

scholarly journals EFFECTS OF WIND FARM OPERATING REGIMES IN THE POWER SYSTEM OF MACEDONIA

2017 ◽  
Vol 32 (1-2) ◽  
Author(s):  
Anton Čauševski ◽  
Tome Boševski
Keyword(s):  
Renewable Energy ◽  
Power System ◽  
Wind Power ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Thermal Power ◽  
Operating Mode ◽  
Hydro Power ◽  
Wind Power Plants ◽  
Hydro Power Plants

A b s t r a c t: The trend for achieving sustainable energy development, keeping the environment clean and utilization of renewable energy sources are imperative to the energy development in several countries. Through legislation and economical benefits, countries tend to encourage potential investors for building the technologies for energy production from renewable. In order to achieve the EU energy target to have 20% renewable in 2020, the technologies for producing electricity from renewable energy sources (RES) are used to cover the needs with more intensities. The most dominant renewable is the wind power plants(WPP) or wind parks, which are used to supply electricity to more power systems (EPS) and whose installed capacity in some European countries reaches thousands MW. This paper treats the issue of operational work of wind power in the power system of Macedonia. It is made of simulation work with wind power plants with total installed capacity of 150 MW with an annual production of 300 GWh. The considered power system of Macedonia is projected for the period of 2015 with an annual consumption of 10,000 GWh. The power plants considering operating in the simulated period are the existing thermal power units and hydro power plants together with the planned gas power plants and hydro power plants. The aim of this paper is to analyze the effects of the power system operation in case to have installed wind power plants, or what operation mode of thermal power plants (TPP) and hydro power plants (HPP) is most convenient when the system has a source of technology from the renewable with stochastically nature. This is especially important, because conventional power plants (TPP and HPP) operate and regulate the needs of consumption in the power system, but the wind power plants operate when the wind occurs within certain limits of  technical operating mode for wind turbines. Although wind is free renewable energy source, frequency of occurrence of wind with unpredictable nature and stochastically, has additional adverse impact in terms of power system operating mode. Certainly the impact of wind power on the overall the power system operation depends on power plants and configuration of the power system. In other words, the base load is covered from TPP fossil fuel or nuclear plants, and the dynamic nature of wind power can be incorporated in the power system depends on how much power plants for peak load are available in the system (storage reversible hydro or gas turbines), or how variable power can be accepted in the power system.

scholarly journals Factors Influencing the Determination of the Gyrosures Potential of Small Rivers

2021 ◽  
Vol 264 ◽  
pp. 03077
Author(s):  
Alifbek Kirgizov ◽  
Sherkhon Sultonov ◽  
Khislatbek Usmonov ◽  
Mirzosharif Rajabov
Keyword(s):  
Renewable Energy ◽  
Sea Level ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Small Rivers ◽  
Energy Sources ◽  
Hydroelectric Power ◽  
The World ◽  
Hydroelectric Power Plants

The article examines the main trends in the use of renewable energy sources in the world. The article examines the main trends in the use of renewable energy sources in the world. The use of renewable sources is associated with the depletion of reserves of carbonaceous minerals and a decrease in greenhouse gas emissions into the atmosphere. The article presents the main, according to the authors, reasons for the incorrect determination of the potential of small hydro resources in the Republic of Tajikistan. In recent years, many small hydroelectric power plants have been built, which are ineffective. For this, the authors propose a more detailed study of the watercourse regime and the determination of its potential for the minimum and maximum tributaries and the possibility of its use, the influence of hydrological, socio-economic factors on the determination of the potential of small rivers during the construction of small hydroelectric power plants. Zoning of small watercourses is proposed for a more detailed determination of the watercourse capacity and the possibility of constructing small hydroelectric power stations on them. The influence of altitude above sea level on the output of the rated power of installations of renewable energy sources is considered. As it shows, the experience of operation and the above statistical analysis at the existing small hydroelectric power plants with an altitude of SHPPs above sea level, their nominal capacity will decrease. The decrease in the nominal output power of small hydroelectric power plants with an air-cooling system is associated with the rarefaction of atmospheric air.

scholarly journals RENEWABLE ENERGY SOURCES IN BOSNIA AND HERZEGOVINA: SITUATION AND PERSPECTIVES

2013 ◽  
Vol 4 (2) ◽  
Author(s):  
Vlatko Doleček ◽  
Isak Karabegović
Keyword(s):  
European Union ◽  
Renewable Energy ◽  
Bosnia And Herzegovina ◽  
Energy Security ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Thermal Power ◽  
Energy Sources ◽  
The European Union ◽  
Hydro Power

Energy security and stability has become a major issue over the last few years in the whole world's economic and social development. Despite its high development and evolution of its approach to the issue of energy security, the European Union is also facing the problem of decreasing its role in reducing human impact on the climate. Energy is of essential importance for the development of any country, including Bosnia and Herzegovina. Without adequate policies in the energy sector bussines, industrial and economic progress is not possible either. However, regardless of how energy is important for the development, it is still only a mechanism for achieving an ultimate goal – sustainable economy, clean environment, high living standards, prosperity and population health. According to the official data, Bosnia and Herzegovina produces annually about 13.600 GWh (data from 2010), out of which 7.950 GWh in thermal power plants and 5.650 GWh in hydro power plants. Basic domestic energy sources in Bosnia and Herzegovina include coal and hydropower, while gas and oil are imported. This paper gives an overview of future of the European Union energy policy by 2020, together with the situation and outlooks for Bosnia and Herzegovina renewable energy sources: hydropower, wind power, solar energy, biomass and geothermal energy. The legislation of renewable sources in the Federation of BIH, as well as the European Union's legislative framework, are also presented.

scholarly journals Rural population and renewable energy sources: Experiences of the Republic of Serbia

Spatium ◽  
2006 ◽  
pp. 1-7
Author(s):  
Mila Pucar ◽  
Marina Nenkovic
Keyword(s):  
Solar Wind ◽  
Renewable Energy ◽  
Geothermal Energy ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Developed Countries ◽  
Energy Sources ◽  
Hydroelectric Power ◽  
Hydroelectric Power Plants ◽  
The Republic

During the last decade of the twentieth century the use of green (renewable) energy has become the imperative not only in developed countries worldwide, but also in poorer countries like Asia and Africa. The change from traditional to renewable energy sources carries valuable improvements in environmental protection and economic efficacy. This paper through individual examples, explores the possibility of replacing traditional with renewable energy sources such as solar, wind, geothermal, energy of small hydroelectric power plants, etc. worldwide and in rural Serbian communities.

Application of Intelligent Technological Systems in Order to Increase Efficiency of the Lock Chamber System in Hydro Power Plants

2015 ◽  
Vol 806 ◽  
pp. 64-73
Author(s):  
Aleksandar Vujović ◽  
Zdravko Krivokapić ◽  
Jelena Jovanović
Keyword(s):  
Power Plants ◽  
Hydroelectric Power Plant ◽  
Global Market ◽  
Real System ◽  
Hydroelectric Power ◽  
Initial State ◽  
Hydro Power ◽  
Lock Chamber ◽  
Levels Of Automation ◽  
Hydro Power Plants

The paper is a result of research at the Mechanical Engineering Faculty in Podgorica and represents the aspiration of authors to combine scientific and technical experience in order to achieve improvement in a real system. It is a complex system of lock chambers in a hydroelectric power plant. Based on a detailed analysis of the initial state, through the process modeling of complex real system, the authors identify possible areas where the intervening and applying modern systems with greater flexibility is necessary to achieve higher levels of automation. Also, proposed in the paper are measures for ensuring the security of information that rise system performance to a higher level compared to the competition and create an advantage in the global market.

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