scholarly journals Electrification Status of Alue Keujrun Village and Kluet River Hydrokinetic Energy Potential: A Survey Report

2021 ◽  
Vol 5 (2) ◽  
pp. 201
Author(s):  
Muhammad Ikhsan ◽  
Nuzuli Fitriadi
Keyword(s):  
Power Plant ◽  
Power Plants ◽  
River Flow ◽  
Low Voltage ◽  
Electric Power System ◽  
Small Scale ◽  
Energy Potential ◽  
Hydro Power ◽  
Survey Report ◽  
The Village

This paper provides survey results of an electricity system that has been carried out from isolated village of Alue Keujrun, South Aceh, Indonesia. The village has a central photovoltaic power plant and a micro hydro power plant. Various problems in the field such as operation errors, lack of maintenance of the electric power system, low voltage and frequency have been found. Power plant operators have also never received any formal training from any institution. The village is located next to the Kluet river which has a very large potential to become a hydrokinetic power plant energy source. Therefore the Kluet river flow velocity was also measured during the survey and described within this paper. Based on the interviews results with local operators, the village power plant does not have an operating permit. Thus, we consider that it is important to review the types of permits required to establish a power plant in Indonesia, including small-scale power plants.

scholarly journals Analisis Ketidakstabilan Tegangan dan Frekuensi Pada Pembangkit Listrik Tenaga Mikrohidro Soko Kembang

2019 ◽  
Vol 11 (2) ◽  
pp. 129-137
Author(s):  
Nurul Dyah Pratiwi ◽  
Isdiyato Isdiyato
Keyword(s):  
Power Plant ◽  
Electric Power ◽  
Rotational Speed ◽  
Power Plants ◽  
Synchronous Generator ◽  
Frequency Instability ◽  
Small Scale ◽  
Hydro Power ◽  
Central Java ◽  
Hydro Power Plants

Microhydro power plant (MPP) is a small-scale power plant that uses water energy. The process of energy change occurs in a device called a synchronous generator. when the synchronous generator is given an arbitrary load, then the voltage will change. These results cause voltage and frequency instability. This research was conducted to analyze the voltage and frequency instability in MPP. The research method used in this research is descriptive quantitative approach in the village of Soko Kembang, Petungkriyono District, Pekalongan Regency, Central Java. This study provides an overview and explanation of the problems regarding the voltage and frequency instability of Micro Hydro Power Plants. The results of this study are the highest and lowest voltage / frequency instability values, namely 235 volts / 51 Hz and 160 volts / 44 Hz, due to the influence of changes in load current, which can affect the rotational speed of the generator changes, resulting in unstable voltage and frequency generated by the generator, the rotational speed of the generator changes, resulting in unstable voltage and frequency generated by the generator. The solution is  add water power to rotate the shaft of the turbine and generator to be tighter, so that it can reduce the value of the decrease in electric power by losses to the turbine and generator. Large electric power can increase voltage and frequency without having to adjust the load, and the need for improvement of the ELC system in order to get a more effective value of voltage and frequency stability.  

scholarly journals ELECTRIC POWER PRODUCED BY NON-SELF-PROPELLED HYDRO POWER VESSEL

2018 ◽  
pp. 92-102
Author(s):  
Liudmila Fedorovna Borisova ◽  
Aleksandr Nikolaevich Korobko
Keyword(s):  
Power Plant ◽  
Electric Power ◽  
Power Plants ◽  
Structural Characteristics ◽  
Plant Design ◽  
Power Module ◽  
Tidal Power ◽  
Energy Potential ◽  
Tidal Power Plant ◽  
Hydro Power

The article contains the method of calculating the electric capacity by a non-self-propelled hydro power vessel which uses renewable tidal power to produce electricity. The vessel is built by means of reconstructing tankers that are in service or to be disposed and can be characterized as a power generating module of a floating non-self-propelled tidal power plant of continuous operation. To evaluate efficiency of the power generated module there has been worked out a method of calculating its generated energy, which allows for local energy potential of the tidal flow, structural characteristics of the module and its geographical position. Based on the developed method there has been given analysis of power generated by one electric power module which can be made by means of construction minor modifications of a standard tanker design. The calculation data obtained were analyzed in comparison with power capacity of small hydroelectric power plants operating in the north-west parts of Russia and with capacity of Kislogubskaya tidal power plant. The tidal power plants can generate electric power comparable with the capacities of tidal (marine) and river-type power plants. The economic benefit of the proposed power plant design is obtained due to significant reduction of costs for implementing floating tidal power plant, compared to the costs of the construction of tidal and hydroelectric stations. The floating tidal power plant is characterized by mobility and can be towed to any coastal zone where the tidal wave parameters are acceptable. When needed, capacity of the floating tidal power plant can be raised by means of attaching additional modules. Mounting and operating of tidal power plants are environmentally secure. The use of tidal power plants is a promising means of electrification for inaccessible and marginal coastal areas.

scholarly journals Small Scale Hydroelectric Power Plants in Norway. Some Microeconomic and Environmental Considerations

2017 ◽  
Author(s):  
Johannes Idsø
Keyword(s):  
Power Plant ◽  
Property Rights ◽  
Power Plants ◽  
Certainty Equivalent ◽  
Small Scale ◽  
Hydroelectric Power ◽  
Hydro Power ◽  
Von Neumann ◽  
Hydroelectric Power Plants ◽  
The One

The development of small scale hydroelectric power plants in Norway is determined by natural conditions, policies, attitudes and property rights. The owner of the river is the central decision maker. It is he who decides whether he will develop the power plant himself, Whether he wants to enter into a contract with an external investor and let him develop the power plant, whether he will sell his property rights or postpone the decisions. All available choices will involve risk. In order for him to make the best choice he must find the certainty equivalent to each of the choices and choose the one with the highest certainty equivalent. This is the first time the utility theory of John von Neumann and Oskar Morgenstern has been applied to decision makers in the hydro power industry in Norway.

Optimization of Water Falling Points in Micro Hydro Power Plants

2021 ◽  
Vol 3 (1) ◽  
pp. 93
Author(s):  
Heru Hermawan ◽  
Sunardi Sunardi
Keyword(s):  
Rural Communities ◽  
Power Plant ◽  
Power Plants ◽  
Negative Impact ◽  
Water Drop ◽  
Water Discharge ◽  
Tangential Force ◽  
Small Scale ◽  
Alternative Source ◽  
Hydro Power

Micro Hydro Power Plant (PLTMH) is an alternative source of electrical energy for the community. PLTMH provides many benefits, especially for rural communities throughout Indonesia. When other energy sources start to run low and have a negative impact, water becomes a very important source of energy because it can be used as an energy source. PLTMH is a small-scale power plant that uses hydropower as its driving force such as irrigation channels, rivers, or natural waterfalls by utilizing the waterfall height (head) and the amount of water discharge. In rivers, there is the potential for sufficient water availability throughout the year, reliable discharge, suitable contours, and has been used for MHP. However, this river has decreased the electrical power it produces. Therefore, in this PLTMH river, it is necessary to analyze and recalculate the electric power generated by optimizing the water drop point, using an 8-inch pipe to produce a tangential force of 814.28 N, then using a 3-inch pipe to produce a tangential force of 100, 62 N and using a 2-inch pipe produces a tangential force of 25.37 N.

scholarly journals Evaluation of Micro Hydro Power Plants in Central Java toward Sustainability against Hydrology Condition of Watershed

2018 ◽  
Vol 73 ◽  
pp. 01017
Author(s):  
Ignatius Sriyana
Keyword(s):  
Power Plant ◽  
Land Degradation ◽  
Power Plants ◽  
Hydro Power ◽  
Central Java ◽  
Hydro Power Plants

Land degradation on the upstream of watershed will affect hydrology condition in a way that it will disrupt the sustainability of its existing micro hydro. The purpose of this study is to evaluate micro hydro power plant in central Java toward sustainability against hydrology condition of watershed. This study is using River Regime Coefficient (RRC) approach where hydrology of watershed with coefficient value less than 50 is classified as non-critical, between 50 and 120 is moderate and more than 120 is critical. Result of the study that was done on 33 micro hydro power plants scattered on 9 watersheds is showing that there are 2 power plants on 2 watersheds have hydrology condition in non-critical status (9.09%), 1 power plant on 1 watershed is in between critical and non-critical status (3.03%), 21 power plants on 3 watersheds are in between critical and moderate status (63.64%), 8 power plants on 6 watersheds are in critical status (21.21%) and 1 power plant on 1 watershed is in between moderate and critical status (3.03%).

scholarly journals The influence of water resources on transformation of spatial-functional structure of the territory of the municipality of Mali Zvornik and the possibilities for the construction of new hydro power plants

2010 ◽  
Vol 90 (3) ◽  
pp. 189-206 ◽  
Author(s):  
Mila Pavlovic ◽  
Rajko Golic ◽  
Dejan Sabic
Keyword(s):  
Water Resources ◽  
Power Plants ◽  
Hydraulic Engineering ◽  
Functional Structure ◽  
Hydropower Plant ◽  
Small Scale ◽  
Hydro Power ◽  
Hydropower Plants ◽  
Economic Revitalization ◽  
Hydro Power Plants

The territory of the municipality of Mali Zvornik is, from the aspect of morphology and spatial-functional structure, a heterogeneous area. It is located in the valley of the Drina River and in hilly-mountainous part of Podrinjske mountains. The area of the municipality is 184 km?, with 14076 inhabitants (2002). The importance of water resources for the development of the municipality, particularly of the hydropower plant (HPP) ?Zvornik?, is analyzed in this paper. Inadequate use of hydro-energetic potential, possibilities for construction of new hydropower plants and economic reasons for their construction are also emphasized. The priorities of the development of hydraulic engineering are defined in relation to morphological and hydrological conditions. They refer to increase of power of the HPP ?Zvornik? and construction of small-scale hydropower plants in hilly-mountainous part of municipality. Considering depopulation processes in the villages of Mali Zvornik, hydraulic engineering, together with agriculture, forestry, exploitation of mineral goods and tourism, can be one of the factors of demographic and economic revitalization of this area.

scholarly journals Dimensioning Studies for Reversible Hydro Power Plants in Portuguese Islands

2018 ◽  
Vol 4 (1) ◽  
pp. 77-86
Author(s):  
Nuno Fonseca ◽  
André Madureira ◽  
João Peças Lopes ◽  
Manuel Matos
Keyword(s):  
Power Plant ◽  
Power Systems ◽  
Power Plants ◽  
Hydro Power ◽  
Power Resources ◽  
Hydro Power Plants ◽  
Pumped Storage ◽  
Energetic Level ◽  
Energy Surplus ◽  
The Ideal

This work is within the scope of set of consultancy studies made for Portuguese islands. It focuses on the integration of Pumped Storage Power in isolated islands. The paper starts to address several power systems circumstances about two Portuguese islands on the energetic level. For each of these islands, an independent examination of the conditions to install a reversible hydro power plant is accomplished. Therefore, the energy volume to be stored due to excess of renewable generation and the ideal power and number of the pumps and turbines to be installed were identified and evaluated for the sake of using the produced energy surplus as to be pumped and later generated. The paper enhances the importance of storing energy in the operation of isolated and small systems with considerable amount of intermittent power resources as well as the conditions for the viability of installing new exploitations of this kind.

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