scholarly journals Photovoltaic Farms—Economic Efficiency of Investments in North-East Poland

Energies ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 2087
Author(s):  
Zbigniew Brodziński ◽  
Katarzyna Brodzińska ◽  
Mikołaj Szadziun
Keyword(s):  
Economic Efficiency ◽  
Power Plants ◽  
Solar Power ◽  
Renewable Energy Sources ◽  
Rate Of Return ◽  
Small Scale ◽  
Photovoltaic Power ◽  
Group I ◽  
Northeastern Poland ◽  
Solar Power Plants

The abandonment of conventional sources in favor of energy from renewable energy sources (RES) has a global dimension, and the dynamic increase in the share of energy from photovoltaic systems in the energy mix of many countries results from the possibility of obtaining it both on a small scale (micro-installations) and as part of economic investments (photovoltaic power plants). The study aimed to assess the economic efficiency of 22 photovoltaic farms located in northeastern Poland. The research covered 5 solar power plants with a capacity of up to 799 kWp (I), 13 between 800 and 1100 kWp (II), and 4 installations of 1.98 MWp (III). The evaluation was based on net present value (NPV), internal rate of return (IRR), payback period (PP), profitability index (PI), accounting rate of return (ARR). Additionally, a sensitivity analysis was carried out regarding the value of economic indicators. The analysis shows that all studied PV farms are economically justified investments (NPV > 0) regardless of the adopted scenario. Solar power plants of the largest analyzed capacity (group III) resulted in being the most profitable ones, but no linear relationship between the level of productivity and profitability was established. Due to the large variation in terrain shape in northeastern Poland, landscape value and social benefits, which are difficult to assess, the support system for investments regarding the construction of photovoltaic power plants proved to be the most effective in group I.

scholarly journals Analisis Performansi PLTS Off-Grid 600 Wp menggunakan Data Akuisisi berbasis Internet of Things

2021 ◽  
Vol 9 (4) ◽  
pp. 761
Author(s):  
ARNISA STEFANIE ◽  
FARRADINA CHORIA SUCI
Keyword(s):  
Internet Of Things ◽  
Output Power ◽  
Power Output ◽  
Power Plants ◽  
Solar Power ◽  
Data Communication ◽  
Communication Line ◽  
Photovoltaic Power ◽  
Solar Power Plants ◽  
Internet Of Things Technology

ABSTRAKPLTS pada penelitian ini didesain dengan sistem Off-Grid dengan kapasitas 600 Wp yang terhubung dengan MPPT 50 A, DC 150V dan energi output disimpan pada baterai VRLA 100 Ah. Pemanfaatan teknologi Internet of Things dengan komunikasi data menggunakan jalur komunikasi serial dengan modul ESP 8266. Pengujian dilakukan dengan memasang PLTS dengan kemiringan 300 pada koordinat wilayah -06°33’25’’, 107°12’39’’. Analisis data dilakukan untuk membaca performa daya output dan membandingkan dengan data total photovoltaic power output (Wh) yang dirilis Global Solar Atlas. Sampel data diambil pada bulan September 2020, 06.00-18.00 WIB, yang menunjukkan bahwa rentang waktu kerja efektif PLTS adalah 07.00-08.00 WIB dengan daya output ±140 watt, dimana mendekati nilai total photovoltaic power output adalah 143 Wh.Kata kunci: PLTS, Off-Grid, Internet of Things, power output ABSTRACTThis Solar Power Plant is designed with an Off-Grid system with a capacity of 600 Wp connected to MPPT 50 A, DC 150V, and the output energy stored in a VRLA 100 Ah battery. Utilization of Internet of Things technology with data communication by serial communication line using the ESP 8266 module. Testing was carried out by installing Solar Power Plants with a slope of 300 at the coordinates of the area -06 ° 33'25 '', 107 ° 12'39 ''. Data analysis was carried out to read the output power performance and compare it with the Total photovoltaic power output (Wh) data released by Global Solar Atlas. Data samples were taken in September 2020 at 06.00-18.00 WIB, which shows the effective working time gap of PLTS at 07.00-08.00 WIB with an output power of ± 140 watts is close to the total photovoltaic power output value of 143 Wh.Keywords: Solar Power Plants, Off-Grid, Internet of Things, power output

Socio-environmental and Economic Problems of Solar Panels Recycling

2020 ◽  
pp. 48-55
Author(s):  
Olena I. Matsenko ◽  
Vladyslav S. Tereshchenko ◽  
Vladyslav S. Piven ◽  
Andrii A. Panchenko ◽  
Evhenyi A. Perekhod
Keyword(s):  
Renewable Energy ◽  
Alternative Energy ◽  
Power Plants ◽  
Solar Power ◽  
Negative Impact ◽  
Renewable Energy Sources ◽  
Economic Problem ◽  
Energy Sources ◽  
Solar Power Plants ◽  
Technical Specifications

The use of alternative energy sources, in particular solar energy, has gained rapid growth in recent years. This trend is prompting manufacturers of equipment for solar power plants to increase production volumes. At the same time, the question arises of the disposal of used modules, because each material has its service life. According to technical specifications, the average life of solar modules and batteries is 25-30 years. Decommissioning may occur earlier than this time due to the following reasons – moral and physical deterioration, mechanical damage, replacement of obsolete equipment with new, modernization of solar power plants. Already in 2030, it will be necessary to replace the solar modules installed in 2000. Therefore, there are acute questions not only regarding the development of technologies for processing waste equipment from solar power plants but also organizational and economic methods. This article discusses the main problems that arise during the utilization and recycling of solar modules, analyzes the experience of countries in resolving these issues. After all, the use of renewable energy sources should minimize the negative impact on the environment from energy production at all stages – from the production of equipment for a power plant to the disposal and recycling of this equipment. Keywords: solar panel, recycling, economic method, solar power, natural resource, economic problem, environment, renewable energy.

An Information System for Multiple Criteria Assessment of Renewable Energy Power Plants

2000 ◽  
Vol 24 (2) ◽  
pp. 81-99
Author(s):  
Stelios A. Papazis ◽  
Maria G. Ioannides ◽  
Panayotis N. Fotilas
Keyword(s):  
Information System ◽  
Renewable Energy ◽  
Power Plants ◽  
Solar Power ◽  
National Level ◽  
Payback Period ◽  
Rate Of Return ◽  
Internal Rate Of Return ◽  
Power Stations ◽  
Photovoltaic Power

An information system, built-up from a database and a multiple criteria decision support system, was developed to collect, process, store, assess and disseminate information on renewable energy power stations in Greece. This system is used to support decision-making, control, analysis and visualization regarding the existent installations, and the middle term forecasting of similar ones. The results show that, at national level, the wind and solar photovoltaic power stations, except the solar systems of private producers, are acceptable investments. The low national level of the capacity factor, 18 % for wind and 11% for photovoltaic power stations, is one of the reasons for their low productivity. The study relates to the prices paid for renewables electricity in Greece. The cost of the electric energy generated, and also the total cost of all wind and solar power stations, are high as compared to those of conventional fuels based systems. The wind power systems have acceptable return of investment (9%/y), internal rate of return (20%/y) and payback period (6-11 y). The solar stations have low internal rate of return (<9%/y) and return of investment (0.57%/y) and long-term payback period (22-35 y). Although the renewables are attractive investments with acceptable nationwide levels of financial indexes, they present high variations from one power station to another. Most wind and solar power plants must increase their competitiveness, and some must revise their feasibility criteria and design of installations. Thus, units with higher profits must be developed to an optimal installed rated power, while others must be reconsidered.

scholarly journals Study on Dust Deposition Mechanics on Solar Mirrors in a Solar Power Plant

Energies ◽  
2019 ◽  
Vol 12 (23) ◽  
pp. 4550 ◽  
Author(s):  
Xueqing Liu ◽  
Song Yue ◽  
Luyi Lu ◽  
Jianlan Li
Keyword(s):  
Power Plants ◽  
Solar Power ◽  
Renewable Energy Sources ◽  
Dust Particles ◽  
Particle Collision ◽  
Energy Sources ◽  
Solar Power Plant ◽  
Dust Deposition ◽  
Research Results ◽  
Solar Power Plants

Solar energy is considered to be one of most promising renewable energy sources because of its availability and cleanliness. The phenomenon of dust deposition on solar mirrors greatly reduces the power generation of solar power plants. In this work, the motion behaviors and deposition mechanics of dust particles are analyzed by the discrete element method (DEM). The effects of environmental and solar mirror conditions and particle self-factors on dust deposition weight are systematically studied here. The research results show that dust particles, after particle collision, immediately adhere to the mirror or rebound and finally flow away from the mirror, or they otherwise may remain stationary after making some relative motion. Alternatively, they may glide for some distance and finally come to rest on the mirror or leave from the system. Different motion behaviors after particle collision depend on different leading forces. Here, the leading forces are the liquid bridge force (Fc) and the contact force (Fb). When the leading forces are Fc, or Fc, and Fb, the dust particles will be deposited on the solar mirror. Besides, the force Fc cannot be negligible when studying the motion processes of dust particles. The dust deposition weight on solar mirrors can be controlled by altering the environmental and solar mirror conditions, and particle self-factors. In essence, dust deposition weight on solar mirrors decreases when decreasing the leading force Fc or increasing the leading force Fb. The research results give theoretical guidance for the prevention and removal of dust deposition on solar mirrors.

scholarly journals Sistem Kendali Dan Monitoring Dengan Syaraf Tiruan Pada Pembangkit Listrik Tenaga Surya

Petir ◽  
2020 ◽  
Vol 13 (2) ◽  
pp. 119-127
Author(s):  
Hengki Sikumbang ◽  
Abdul Haris ◽  
Muhammad Jafar Elly
Keyword(s):  
Power Plants ◽  
Solar Power ◽  
Plant Performance ◽  
Small Scale ◽  
Solar Panels ◽  
High Investment ◽  
Solar Power Plants ◽  
Web Control ◽  
And Control ◽  
Computerized System

The problem with the condition of the Solar Power Plant is still not optimal due to position of the solar cells in generator is still static so that absorption of light is still not even though Hybrid technology is now available but cannot be optimized properly and still cannot be optimized implemented especially in small scale and remote areas. Another problem that needs attention is the continued operation of installed Solar Power Plants (SPPs), considering the installation and maintenance of the plant requires high investment costs because the installation of solar panels requires a large amount of land and costs besides requiring qualified technical personnel to handle problems and monitoring plant conditions are needed quickly and accurately. From the description of the problem, the first step is to identify the technology used in the factory, the second is the need to design a new system to be able to solve important problems in the plant and the third is to build a computerized system that uses the Hybrid Method on the plant used. is a combination of Artificial Intelligence and Data Mining Processes so that it can present accurate data so that it can help and analyze plant performance, monitor and control plants remotely quickly by using Web Control.

scholarly journals Algorithm for assessing the efficiency of siting solar power plants at the enterprises of the agro-industrial complex of Krasnodar region

2021 ◽  
Vol 845 (1) ◽  
pp. 012157
Author(s):  
A S Kirichenko ◽  
E V Kirichenko
Keyword(s):  
Renewable Energy ◽  
Programming Language ◽  
Spatial Data ◽  
Power Plants ◽  
Solar Power ◽  
Renewable Energy Sources ◽  
Industrial Complex ◽  
The Matrix ◽  
Solar Power Plants ◽  
High Level

Abstract The features of agricultural energy in the Krasnodar Territory are considered and two main problems are identified: the shortage of generating capacities and the remoteness of low-power consumers from centralized networks, for the solution of which renewable energy sources, including solar energy, can be used. The use of solar power plants at the enterprises of the agro-industrial complex of the region has been substantiated. The importance of automating the process of assessing the territory suitable for the placement of solar power facilities and the features of its implementation are substantiated. Criteria have been obtained that influence the choice of the optimal option for placing solar power facilities, based on the methodology for calculating the power and the amount of generated energy. The features of calculating the matrix of spatial characteristics for renewable energy facilities in the Krasnodar Territory are shown. An algorithm for creating a matrix of spatial data and an algorithm for choosing the optimal option for placing solar power plants are presented. The use of a high-level programming language Python is proposed to implement the created algorithm. The conclusion is made about the possibility of automating the process of assessing the efficiency of the placement of solar power plants in the Krasnodar Territory using modern computing technology in the format of a geoformation application developed in the Python programming language.

Analiza ekonomske opravdanosti investiranja u solarnu elektranu sa vertikalno postavljenim bifacijalnim fotonaponskim modulima u perspektivnim uslovima slobodnog tržišta

2021 ◽  
Vol 23 (3) ◽  
pp. 37-44
Author(s):  
Đorđe Lazović ◽  
◽  
Kristina Džodić ◽  
Željko Đurišić
Keyword(s):  
Power Plant ◽  
Electricity Market ◽  
Power Plants ◽  
Solar Power ◽  
Renewable Energy Sources ◽  
Economic Feasibility ◽  
Plant Production ◽  
Solar Power Plant ◽  
Solar Power Plants ◽  
East West

After the expiration of governmental incentive measures for renewable energy sources integration, economic feasibility of investing into solar power plants will highly depend on compatibility between production and variable prices. In order to achieve the maximum possible profit of the power plant in liberalized electricity market, it is necessary to consider the possibility of investing in solutions that are not common today, but with the potential of being more profitable in the future. Such a solution is a solar power plant consisting of vertically placed bifacial modules whose active surfaces are oriented in the east-west direction. This configuration of the power plant can achieve higher production in periods of high prices, and thus higher profits from the sale of electricity. On the other hand, such a solution is more expensive than a standard solar power plant with monofacial modules. In this paper, a comparison of return on investment in a bifacial power plant and a monofacial power plant with existing and prospective market conditions is performed. The influence of solar power plant production on the price of electricity was investigated on the example of Germany. Based on this research, a prognostic model of the daily price diagram on the unified European market until 2040 was formed. It served for the analysis of the profitability of investments in the two considered variants of the solar power plant realization.

Impact of wind and solar power plants on the reliability of the IPS

2021 ◽  
Vol 13 (4) ◽  
pp. 257-266
Author(s):  
V. A. Nepomnyashchiy
Keyword(s):  
Power Systems ◽  
Power System ◽  
Power Plants ◽  
Solar Power ◽  
Renewable Energy Sources ◽  
Power Industry ◽  
Energy Sources ◽  
Solar Power Plants ◽  
Additional Fuel Consumption ◽  
Additional Fuel

One of the most promising areas in the development of the electric power industry is generally regarded to lie in expanding the share of renewable energy sources (RES) in the electric energy balance of power systems in the form of wind and solar power plants (WPP and SPP), the saving of organic fuel (coal, gas, fuel oil) and the reduction of environmentally harmful emissions into the atmosphere considered to be their most important advantages. However, the impact of RES on the controllability of the modes of operation of electric power systems and on the reliability of the IPS operation remains quite unexplored.Currently, the global energy industry uses 318 million kW of WPP and about 142.4 million kW of SPP, of which the major West European countries account for about 227 million kW, or 49.3%. On average, wind and solar power plants account for almost 30% of the total generating capacity in Western Europe, with Denmark having the largest share of WPP (47%) and Germany having the highest share of SPP (18.6%). However, an uncontrolled growth in the share of WPP and SPP in the structure of generating capacities of power systems begins to manifest itself in a sharp decline in the reliability of the power industry due to the fact that a number of negative properties of WPP and SPP have not been taken into account (at least, to a sufficient extent), which manifested themselves in practice in a system accident in the UK power system that occurred on August 09, 2019, when, as a result of an "ordinary" short circuit, a system accident occurred, with up to 1.1 million consumers with a total load of 1690 MW disconnected from the power supply system for a period of 15 to 45 minutes. This is estimated to have resulted in economic losses for consumers amounting to 12.3–15.0 million USD.The reason for this is that the high sensitivity of WPP, SPP, CCGT and gas piston units to voltage and frequency drops is not properly considered in conditions of insufficient capacity of the rotating (mobile) generation reserve. Damage can be prevented by increasing the rotating reserve within the available reserve of the power system, which will require an increase in funds for maintaining the same due to additional fuel consumption. The ratio of reduction of probable damage to consumers and the cost of additional fuel consumption for maintenance of a required rotating reserve in the power system allows to economically substantiate the strategy and scale of introduction of renewable energy sources to the power industry. 

scholarly journals Evaluation of Work Efficiency of the Solar Power Plant Installed on the Roof of a House in Hanoi City

2020 ◽  
Vol 63 (1) ◽  
pp. 30-41 ◽  
Author(s):  
T. N. Nguyen ◽  
V. D. Sizov ◽  
M. P. Vu ◽  
T. T. H. Cu
Keyword(s):  
Power Plant ◽  
Power Plants ◽  
Solar Power ◽  
Small Scale ◽  
Solar Power Plant ◽  
Power Station ◽  
Power Stations ◽  
Solar Power Plants ◽  
Solar Power Station ◽  
Rooftop Solar

Vietnam is a country of a great solar potential; solar technology is growing rapidly in Vietnam and investors are very interested in building solar power plants. Construction of the rooftop solar power stations can help owners reduce monthly electricity costs and even get economic benefits by selling excess electricity coming from a solar power plant (PV) to the utility grid. In this study, the design results of a rooftop grid-tied solar power station with the capacity of 26 kWp for a commercial building were introduced to have a basis to assess the operation ability of solar power station under solar radiation conditions in Hanoi city, Vietnam. The simulation results using the PVsyst program have made it possible to calculate the solar energy potential in Hanoi city, the power generation and efficiency of the grid-tied solar power station. Solar power has been applied in Vietnam since the 1990s but is mainly used for areas that were far from national power grid such as mountainous areas, islands. Small scale grid-tied solar power has been developed since 2010 and mainly is used for residential applications or small and medium scale consumers. The total capacity of electricity produced by solar power plants in Vietnam by 2017 was only about 8 MW; this value is very low as compared to the potential of solar power in Vietnam. This is due to the absence of the government support for the policy of developing solar power. In accordance with the current roadmap of raising electricity prices in Vietnam, construction investment of rooftop solar power stations is economically feasible while contributing to environmental protection and counteracting climate change phenomenon by reducing the amount of CO2 emitted into the environment.

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