Construction Of Solar Power Plants Research Articles

USING MICROINVERTERS FOR PHOTOVOLTAIC CLUSTER

Decentralization and distribution of generating capacities leads to the stability and scalability of the energy system, that in the work proposes the construction of solar power plants in the form of a cluster structure with the creation of unified generating modules. The main idea is to use microinverters as equipment that converts direct current into alternating current. The advantages of using microinverters as devices that ensure decentralization within the framework of a solar power plant, locally, are noted. The implementation of microinverters together with storages of electrical energy is shown. Systems with different types of battery placement are described. The possibility of using individual photovoltaic panels as an independent generating unit in the overall structure of the cluster was noted.

Demarcation of suitable site for solar photovoltaic power plant installation in Bangladesh using geospatial techniques

The major goal of this research is to adopt analytical hierarchy process (AHP) based geospatial technique to select suitable zone for the solar photovoltaic (PV) power plants. Nine thematic layers altogether—slope, global horizontal irradiation (GHI), relative humidity, direct normal irradiation (DNI), elevation, distance from major roads, distance from protected areas, rainfall, and land use/land cover (LULC)—are combined through overlay analysis in ArcGIS to create the final map of suitability for the placement of solar photovoltaic (PV) power plants in Bangladesh. This map has been classified into five categories namely, restricted zone, less suitable zone, moderate suitable zone, good suitable zone, and excellent suitable zone. These categories are covered by 7.28%, 16.61%, 28.51%, 27.77%, 21.83% land of total area in Bangladesh respectively. The findings of this research have been presented that ‘the excellent suitable’ and ‘good suitable’ areas for the construction of solar power plants are in the western and northwestern part (Rajshahi, Pabna, Sirajganj, Natore, Naogaon, Chapainawabganj, Bogura, Faridpur, Jessore, Jehenaidha, Magura, Kushtia, Choudanga, Meherpur) of the study area which contain a high value of global horizontal irradiation, direct normal irradiation, elevation and low value of slope, rainfall, temperature, relative humidity. Besides the restricted and less suitable zone for installing solar photovoltaic (PV) power plants indicates a high value of rainfall, slope, temperature, relative humidity and low value of global horizontal irradiation, direct normal irradiation, and elevation. Bangladesh's currently operational solar plants were taken into consideration for this study's validation purposes. The proposed framework may potentially be used in different locales on a national and worldwide scale. This study offers a consistent GIS process for the accurate, inexpensive implementation of a solar energy plan to achieve environmentally friendly goals.

Corporate Knowledge Creation and Motivation

In the present era, the replication and reproduction of products have become commonplace. As a result, the competitive edge primarily hinges on the experiential insights and knowledge that companies possess. In the swiftly evolving landscape of today, continual adaptation and receptivity stand as indispensable factors for our business's triumph. Moreover, the cultivation of robust collaboration amongst employees is held in high esteem. Consequently, these factors underscore the mounting significance of efficient knowledge acquisition, sharing, and management within corporate governance. This has led to a compelling surge in the call for the application and refinement of knowledge management practices. Currently, I am engaged as a project engineer/manager within a company that specializes in the design and construction of solar power plants. This enterprise, established in 2019, is relatively nascent. Nevertheless, it has charted a steady growth trajectory, both in terms of workforce expansion and revenue augmentation. Year by year, it assumes a larger and more influential role within the market. My research will be centered within the confines of this company, leveraging interviews and surveys as my primary research tools. My aspiration is that this approach will furnish comprehensive insights into the pivotal queries at hand. The primary objective of my study will be to juxtapose the perspectives of managers and employees regarding the realm of knowledge management. I intend to delve into its significance, scrutinize the avenues for advancement, and dissect the impediments and perils that may impede its progress.

Accounting of installation and use of solar power plants

Through the using of solar power plants, a business entity reduces operating costs by using solar electricity for its own needs and generates income by selling this electricity on the market. The construction of solar power plants in Ukraine is an important factor in the development of the national energy market and a tool for integration into the European renewable energy market. The article examines the role and importance of using solar electricity as one of the types of alternative sources of electricity. The authors investigate the peculiarities of accounting for the initial cost of solar power plants depending on the method of its receipt by an enterprise. In particular, the author presents the correspondence of accounting accounts, which are drawn up upon receipt of a solar power plant when it is purchased for cash, in case of its construction by the enterprise using the economic and contractor methods. The procedure for recognition and valuation of solar power plants as an object of fixed assets is substantiated. It is noted that the costs of forming the initial cost of a solar power plant should be accounted for by using the relevant subaccounts of account 15 “Capital Investments”. The article also presents the results of the impact of establishing the useful life and depreciation method of a solar power plant on the financial results before corporate income tax.

Comparison of Wavelet Artificial Neural Network, Wavelet Support Vector Machine, and Adaptive Neuro-Fuzzy Inference System Methods in Estimating Total Solar Radiation in Iraq

Estimating the amount of solar radiation is very important in evaluating the amount of energy that can be received from the sun for the construction of solar power plants. Using machine learning tools to estimate solar energy can be a helpful method. With a high number of sunny days, Iraq has a high potential for using solar energy. This study used the Wavelet Artificial Neural Network (WANN), Wavelet Support Vector Machine (WSVM), and Adaptive Neuro-Fuzzy Inference System (ANFIS) techniques to estimate solar energy at Wasit and Dhi Qar stations in Iraq. RMSE, EMA, R2, and IA criteria were used to evaluate the performance of the techniques and compare the results with the actual measured value. The results showed that the WANN and WSVM methods had similar results in solar energy modeling. However, the results of the WANN technique were slightly better than the WSVM technique. In Wasit and Dhi Qar stations, the value of R2 for the WANN and WSVM methods was 0.89 and 0.86, respectively. The value of R2 in the WANN and WSVM methods in Wasit and Dhi Qar stations was 0.88 and 0.87, respectively. The ANFIS technique also obtained acceptable results. However, compared to the other two techniques, the ANFIS results were lower, and the R2 value was 0.84 and 0.83 in Wasit and Dhi Qar stations, respectively.

Towards just transition of coal regions - Cultivation of short rotation copies and dedicated energy crops for biomass co-firing vs photo voltaic power plants

• Abandoned coal mine areas to continue sustainable use now in the green energy business. • Options proposed include forming biomass plantations vs construction of solar power plants. • Sustainability criteria such as economic, environmental and social aspect need to be considered. • Decision can be made using both aggregated economic analysis and multi criteria sustainability assessment. In developing countries, which dominantly produce electricity by burning coal, energy transition represents a significant challenge. Short rotation coppice and dedicated energy crops could be a promising raw material for production of biofuel and its further usage for electricity and heat generation. This work assesses possibilities and elaborates on the sustainability of cultivation of short rotation coppice type willow and dedicated energy crop Miscanthus on former areas of coalmines belonging to the largest power utility in Bosnia and Herzegovina, namely JP Elektroprivreda BiH d.d. – Sarajevo. Abandoned coal mine areas were mapped and, by settled criteria, dedicated either to future photovoltaic power plants integration or the cultivation of energy crops and their further use in the considered generation portfolio mix. In order to assess the contribution of both photovoltaic power plants and biomass in the upcoming energy transition process, an adequate method has been developed in this article and specific sustainability indicator groups determined to further calculate the sustainability ratio. The paper focuses on economic, environmental and social indicator groups, which were used to perform the aggregated economic analysis and the multi criteria analysis. Performed aggregated economic analysis lightly favours the construction of photovoltaic power plants over the use of willow as fuel. In this analysis, Mischantus is lagging far behind due to its lower yield compared to willow. The multi criteria analysis on the other hand, valorises the social indicator adequately and the sustainability ratio results are much closer for both considered renewable sources types. This shows the importance of a comprehensive approach and definition of appropriate methods to enable decision-makers to draw appropriate conclusions.

ГЕОМЕТРІЗАЦІЯ КОНСТРУКЦІЙ СОНЯЧНИХ ПАНЕЛЕЙ ТА ЇЇ ВПЛИВ НА ПРОДУКТИВНІСТЬ ВИРОБЛЕННЯ ЕЛЕКТРИЧНОЇ ЕНЕРГІЇ

. The current direction in the development of renewable energy today is the efficient use of the potential of solar energy. The construction of energy-efficient low-power autonomous solar power supply systems is a priority task, the solution of which will lead to energy independence of the consumer from the electricity market. Decentralization of energy supply is currently a global trend. Renewable energy is a solution to many problems of energy systems in an energy crisis. It is on renewable energy sources and autonomous power plants built on their basis that the future is. But their construction must meet a number of requirements, such as energy efficiency, performance, reliability, mobility and modularity. . The constructive issues of building photovoltaic plants are important and require an individual approach in each case, taking into account a variety of impact indicators. Therefore, it is very important to identify the optimal geometric design of an autonomous photogeneration system, which is the most energy efficient and productive in terms of generating electrical energy. The generation of electrical energy by solar power plants and, accordingly, the energy efficiency and performance of solar panels depends on many factors, but climatic and technical ones have the greatest influence. Since it is impossible to influence the change in climatic conditions, it is accordingly necessary to adapt to them in order to reduce their impact. Thus, one of the solutions is the location of solar panels at an optimal angle to directional solar radiation. From a technical point of view, the issue of adapting solar panels to climatic factors has been studied for a long time and has certain solutions. But constructive issues that also ensure the mobility and modularity of an autonomous solar installation, taking into account such parameters as the occupied area, the location of the components of the energy storage system, the conversion system and the control system, require further development. One of the solutions to these issues is the geometrization of the design of a solar power plant, making it in the form of a geometric figure with the location of all the necessary devices and systems in the middle of it. The paper considers solar power plants structurally made in the form of a cube and in the form of a cone. The theoretical review of the construction of solar power plants in the form of geometric structures allows us to conclude that each given design has such general advantages as a reduction in the area of placement, structural stability and modularity. But all the considered designs need further development in order to increase their efficiency and, accordingly, energy performance.

Reliability and performance analysis of a mini solar home system installed in Indonesian household

During the COVID-19 pandemic since early 2020 in Indonesia, the demand for electrical energy in the housing sector has increased significantly. This is due to the government’s recommendation to reduce activities on the outside and work from home, specifically for educational and entertainment activities. Those are almost recommended to be done online. Many people complain about the increase in monthly electricity payments compared to before the pandemic. The construction of solar power plants in housing/solar home systems (SHS) will reduce the electricity consumption from the public grid. This SHS installation can be used to supply some household electricity needs, such as computers, televisions, internet facilities, lighting, et cetera. In this article, the researchers discuss the performance testing of SHS with a capacity of 300 Wp. It is installed in the house buildings accompanied by the design and measurement of solar energy potential.

A decision model based on decision tree and particle swarm optimization algorithms to identify optimal locations for solar power plants construction in Iran

Sustainable energy sources such as solar energy are the most common renewable alternatives to fossil fuels. The first step in expanding the use of solar energy is to identify high-potential locations for the construction of solar power plants. This study aims to assess and compare the performance of decision tree and particle swarm optimization (PSO) algorithms in identifying optimal solar power locations. High-potential regions are extracted using multiple-criteria decision making (MCDM), which are used in the decision tree and PSO algorithms for recognizing optimal locations. The results indicate the potential of the study area for establishing solar power plants based on three-level of suitability. The comparison of optimization methods showed that the prediction rate for the very high potential class belonged to the decision tree (0.29) and PSO (0.13), respectively. Therefore, the decision tree method offers a better solution for detecting potential areas for solar energy development in the study area. The research results provide a useful resource for planning and decision-making concerning the development of renewable energy in the future. The used decision tree in the present study can also be used in other parts of the world to select optimal locations for constructing renewable energy plants.

Performance Evaluation of Solar Power Plants: A Review and a Case Study

The world’s electricity generation has increased with renewable energy technologies such as solar (solar power plant), wind energy (wind turbines), heat energy, and even ocean waves. Iran is in the best condition to receive solar radiation due to its proximity to the equator (25.2969° N). In 2020, Iran was able to supply only 900 MW (about 480 solar power plants and 420 MW home solar power plants) of its electricity demand from solar energy, which is very low compared to the global average. Yazd, Fars, and Kerman provinces are in the top ranks of Iran, with the production of approximately 68, 58, and 47 MW using solar energy, respectively. Iran also has a large area of vacant land for the construction of solar power plants. In this article, the amount of electricity generation using solar energy in Iran is studied. In addition, the construction of a 10 MW power plant in the city of Sirjan is economically and technically analyzed. The results show that with US$16.14 million, a solar power plant can be built in the Sirjan region, and the initial capital will be returned in about four years. The results obtained using Homer software show that the highest maximum power generation is in July.

Influence of Renewable "Green" Energy on the Economic Development of the EU States

This article reveals the economic importance of solar energy development in the European Union in recent years. It defines the structure of energy consumption in EU countries. This structure allows us to determine how much income energy companies receive from solar electricity consumption by the population and industry. The article determines that solar energy is essential for the countries. Therefore, like any other sectors of the national economy, it forms the gross domestic product. In addition, energy companies pay taxes to the budget, which shows the economic importance of solar energy development, comparing state investments with tax revenues. The research aims to show the financial importance of solar energy for the state, i.e., how much income the state will receive in the budget by supporting solar energy development. To achieve the goal, methods of economic analysis and economic-mathematical modeling were used. They allowed confirming the hypothesis about the feasibility of investing in solar energy in European countries. The research is based on the statistical materials of 2014-2019 on the generation of solar energy, investments in it, and state budget revenues from the taxation of produced solar power. This study proves for the first time that an increase in solar energy production is beneficial to the state, despite the low level of return on investment in the construction of solar power plants by the state. Based on economic and mathematical modeling results, a linear dependence was built, which allows forecasting the volume of tax revenues from the construction of solar power plants and electricity prices. Thus, the hypothesis about the economic feasibility of investing in solar power is confirmed.

Feasibility Study of Solar Power Plant in the Rectorate Building of Lampung University Using the Ongrid System

This research aims to analyze the technical and economic feasibility aspects of the construction of solar power plants in the Rectorate building of Lampung University. Technical aspects are calculated how much electrical energy is generated, the number of components and systems used. Then the economic aspects are calculated using the net present value (NPV) and profitability index (PI) methods to determine profitable or detrimental investments in the future. The electrical energy generated by solar power plant is affected by solar radiation based on RetScreen data and the number of solar modules installed on rooftop buildings. The results of this study showed that the construction of solar power plant in the Rectorate building of the University of Lampung is feasible to built using ballast installation techniques and on-grid systems, based on economic aspect, it is feasible.
 
 Keywords: RetScreen, rooftop, on grid, Unila

Technical Study of Developing Floating Photovoltaic 145 MWac Power Plant Project In Cirata Reservoir

This paper is concerning how the technical study of the 145 MWac Cirata solar Floating construction was built on the cirata dam. The Cirata floating solar power plant development plan starts with the Renewable Energy Mix target set by the Indonesian government as stipulated in the National Electricity General Planning Document 2018-2037 with a target of 23% renewable energy by 2025. Technical aspects of the study are carried out on several aspects such as availability land which will determine the type of PV Land Base or floating. with some technical considerations while eventually floating technology was chosen since has technical and financial advantages for the construction of solar power plants in this location. Subsequently, an evaluation was carried out to determine the potential for irradiation at the specific locationbju. After obtaining irradiation data and meteorological conditions, a projection of energy production in the location is carried out using the performance ratio parameters on several values to obtain the projection of annual energy production. An evaluation of interconnection was also carried out to find out whether the construction of the 145 MWac floating solar was safe against the reliability of the 150 kV and 500 kV systems in the West Java system.

Sustainability Index of Solar Power Plants in Remote Areas in Indonesia

Energy is an inseparable component in human life in every aspect. However, many regions cannot utilize energy sources to support their daily activities, so there are several breakthroughs made by the government, including the construction of solar power plants in remote areas. Some challenges arise because is Solar Power in remote areas sustainable? This research analyzes the sustainability of Solar Power in remote areas as environmentally friendly energy built by government funds (State Budget). The research location is in Sukarasa Village, Bogor, Indonesia, a remote area that has Solar Power as a source of community energy. The analysis was carried out by analyzing the Solar Power sustainability factors such as technical, environmental, social, and economic factors). The results of the analysis of Solar Power sustainability in rural areas using the or Multi-Dimensional Scaling (MDS) method in the form of a kite diagram. Of the four dimensions of sustainability, the highest sustainability index values are the environmental dimension; social dimension; technical dimension, and economic dimension of having a less sustainable status, while the environmental dimension is the only dimension of sustainability that has a fairly sustainable status. These results indicate that solar power plants in remote areas are quite sustainable, but there needs to be a mechanism for periodic maintenance and community participation in managing this Solar Power.

A novel integrated approach for ranking solar energy location planning: a case study

PurposeEvery day, the sun provides by far more energy than the amount necessary to meet the whole world’s energy demand. Solar energy, unlike fossil fuels, does not suffer from depleting resource and also releases no greenhouse gas emissions when being used. Hence, using solar irradiance to produce electricity via photovoltaic (PV) systems has significant benefits which can lead to a sustainable and clean future. In this regard, the purpose of this study is first to assess the technical and economic viability of solar power generation sites in the capitals of the states of Canada. Then, a novel integrated technique is developed to prioritize all the alternatives.Design/methodology/approachIn this study, ten provinces in Canada are evaluated for the construction of solar power plants. The new hybrid approach composed of data envelopment analysis (DEA), balanced scorecard (BSC) and game theory (GT) is implemented to rank the nominated locations from techno-economic-environmental efficiency aspects. The input data are obtained using HOMER software.FindingsApplying the proposed hybrid approach, the order of high to low efficiency locations was found as Winnipeg, Victoria, Edmonton, Quebec, Halifax, St John’s, Ottawa, Regina, Charlottetown and Toronto. Construction of ten solar plants in the ten studied locations was assessed and it was ascertained that usage of solar energy in Winnipeg, Victoria and Edmonton would be economically and environmentally justified.Originality/valueAs to novelty, it should be clarified that the authors propose an effective hybrid method combining DEA, BSC and GT for prioritizing all available scenarios concerned with the construction of a solar power plant.

Формування інституційних складових кооперативного розвитку альтернативної енергетики в аграрному секторі економіки

The purpose of the article is to characterize the role of "green" cooperatives in the formation of institutional components of the development of alternative energy in the agricultural sector of the economy. Research methods. The article uses such a theoretical method as generalization during the study of the essence of the category of "green" energy cooperative. As well as the method of analysis in the process of considering the current state of development of alternative energy in Ukraine. In addition, an explanation method was used to study the role of "green" energy cooperatives in the development of alternative energy. Research results. The basic concept of "cooperation" and the derivative "energy cooperative" from the point of view of various authors are considered, the own explanation of the term "green" energy cooperative is given. The state of development of alternative energy in Ukraine is described. The trends of energy consumption based on renewable sources in the country for 2013-2018 are analyzed, according to which the share of energy supply from renewable sources is growing every year in 2018 with a rate of 4.6%. Motivations for active construction of solar power plants with the largest number of such in Dnipropetrovsk and Ternopil regions were noted. The institutional components of the development of alternative energy are noted, the emphasis is on "green" cooperatives. The main normative legal acts, ie formal institutions regulating renewable energy in the country, namely laws, orders, strategies are considered. An element of the institutional mechanism, such as organizations that control and structure the process of development of alternative energy sources, including in the agricultural sector of the economy, is analyzed. An example of successful experience of foreign countries in "green" energy cooperation, including the United Kingdom and Germany. Scientific novelty. The own explanation of the category "green" energy cooperatives "is formed. The importance of energy cooperatives in the development of the "green economy" in the agricultural sector of the economy is proved. Practical significance. The results of the study can be used to accelerate the further active development of "green" energy cooperatives, which will have a significant impact on increasing the production and consumption of alternative energy sources in rural areas, as well as reducing energy costs by farms and private farms. Tabl.: 1. Figs.: 2. Refs.: 23.

Efficiency of solar and wind energy use in the countries of Central and North-East Asia

This paper investigates the effectiveness of renewable energy sources using solar and wind energy in the countries of Central and North-East Asia. The analysis was carried out in two stages. At the first stage, the efficiency of wind and solar installations in different climatic conditions was compared by the criterion of the cost of electricity. At the next stage of analysis, an optimization mathematical model was used to study the system that simultaneously includes wind and solar installations, backup energy sources and batteries. The model takes into account system effects caused by the interaction of the system elements between themselves and with the environment. It solves the problem of mathematical programming — the search for the minimum of the objective function (total costs) at some constrains. The model is used to study the economic efficiency of the large-scale construction of solar power plants in the Gobi Desert. It is shown that the joint use of solar and wind energy gives a positive economic effect, i.e. energy cost are less than with separate use of these energy sources. Under suitable wind conditions such systems reduces the cost of electricity by more than a quarter compared to the option of using solar energy only.

Особливості функціонування аміакопроводу в структурі трубопровідного транспорту Миколаївського регіону

У статті досліджено особливості функціонування аміакопроводу в структурі трубопровідного транспорту Миколаївської області. Виконано аналіз екологічної безпеки та надійності експлуатації лінійної частини магістрального аміакопроводу підприємства «Укрхімтрансаміак». Визначено, що для забезпечення безпечних режимів роботи магістрального аміакопроводу передбачено автоматизовану систему управління технологічним процесом транспортування рідкого аміаку на базі електронних засобів контролю та мікропроцесорної техніки.

Membangun Wilayah Perbatasan di Provinsi Kepulauan Riau (Mencari Solusi Untuk Peningkatan Kesejahteraan Masyarakat Di Pulau-Pulau Terdepan)

In the Riau Islands Province which is a problem in the border region, among others, is the very wide stretch of border areas, still lack of management of potential and natural resources both state and private, handling border areas that have not been maximized and are still partial or sectoral, education and welfare levels which is still low compared to people in neighboring countries such as Singapore and Malaysia, the lack of security and defense facilities and infrastructure which can lead to weak supervision of violations of state borders, and the lack of integration of programs and activities in border area development.The formulation of the problem in this study is: How are the efforts to Build a Border Area in the Riau Islands Province in order to find a solution to improve community welfare on the front islands. The aim of the study was to find out how the government's efforts in Building Border Areas in the Riau Islands Province in order to improve Community Welfare on the Leading Islands. This study uses library research methods, namely by using secondary data from sources that are used as objects of research, both books or literature, electronic media (internet sites), online media, which have to do with the problem of this research. Data collection in this study was conducted using library studies. The efforts made by the Riau Islands Provincial Government to find solutions to improve the welfare of the people on the leading islands are the Launching of the Integrated Border Area Movement Development Program (Gerbangdutas) in Natuna Regency, Accelerating rehabilitation of habitable homes, markets, schools, health centers, Village and Village Development Acceleration Program (P3DK), efforts to resolve national borders, and increase electrification, especially in small islands and remote areas through the construction of solar power plants, micro hydro power plants and power plant technology development Electric Power and construction of ports / piers in the border area. On the other hand, because of the strategic nature of the Riau Islands Province, it needs to be supported by good connectivity, especially sea connectivity. Therefore, a number of ports and ferry boats are built which are a priority so as to reduce intra-regional and inter-regional disparities. Batam as a city that also borders directly with neighboring Singapore is used as an industrial, tourism, shipping and service area. Another form carried out in the context of building border areas is by implementing the Sea Toll Program. It is expected that with the relationship between sea ports, there will be smooth delivery of goods to border areas. The Sea Toll Program is carried out, especially for the Riau Islands Province because the Riau Islands region has many seas. Whereas in the field of infrastructure, especially related to infrastructure, the Provincial Government of Riau Islands and PT. PLN in Riau Region and Riau Islands faces many obstacles, especially for border areas with many disruptions and constraints, especially because the condition of the Riau Islands is the sea, in addition to weather and climate factors which are often uncertain and the absence of port loading and unloading facilities.

Determining Optimal Solar Power Plant Locations Based on Remote Sensing and GIS Methods: A Case Study from Croatia

In the last few years, the world has been turning to the exploitation of renewable energy sources due to increased awareness of environmental protection and increased consumption of fossil fuels. In this research, by applying geographic information systems and integrating them with multi-criteria decision making methods, an area suitable for the construction and exploitation of renewable energy sources is determined. The research uses not only climate, spatial, environmental, and geomorphological parameters but also socioeconomic parameters, population, unemployment, and number of tourist nights as well as electricity consumption. By applying spatial analysis, rasters of all parameters were created using GRASS GIS software. Using the analytic hierarchy process, the calculated rasters are assigned with weight coefficients, and the sum of all those rasters gives the final raster of optimal locations for the construction of solar power plants in Croatia. To test the accuracy of the obtained results, sensitivity analysis was performed using different weight coefficients of the parameters. From the sensitivity analysis results, as well as a histogram and statistical indicators of the three rasters, it is apparent that raster F1 gives the best results. The most decisive parameters in determining the optimal solar plant locations that result from this research are GHI, land cover, and distance to the electricity network.