scholarly journals Mathematical modeling of electricity production by a PV installation for the conditions of the Republic of Mari El

2021 ◽  
Vol 5 (47) ◽  
pp. 5-5
Author(s):  
Alexander Saakian ◽  
◽  
Keyword(s):  
Mathematical Modeling ◽  
Power Supply ◽  
Tracking System ◽  
Residential Building ◽  
Electricity Production ◽  
Pv System ◽  
Threefold Increase ◽  
Solar Tracking ◽  
The Republic ◽  
The Cost

The authors built a mathematical model of the production of electricity by a PV installation with a grid inverter, intended for power supply of a rural residential building, for the conditions of the central part of the Republic of Mari El. Authors considered several options for the PV system: fixed-tilt PV panels, PV panels with a solar tracking system and a concentrator PV system. The most effective in terms of the electricity sold is the concentrator PV system. Compared to the version of the system with fixed-tilt PV panels, the use of concentrators provides a more than threefold increase (with a solar radiation concentration factor of 2) in the annual volume of electricity sold. For the variant of the system with PV panels with the solar tracking system (without concentrators), the analogous figure is 18.4%. The cost of electricity sold per year (at a price of 3.2 rubles / kWh) for three variants of the system will be: the system with fixed-tilt PV panels – 9140 rubles, the system with PV panels with the solar tracking system - 10820 rubles, the concentrator PV system - 30250 rubles. Keywords: PV INSTALLATION, MATHEMATICAL MODELING, VOLUME OF SOLD ELECTRICITY

scholarly journals A Misalignment Optical Guiding Module for Power Generation Enhancement of Fixed-Type Photovoltaic Systems

Micromachines ◽  
2019 ◽  
Vol 10 (10) ◽  
pp. 687
Author(s):  
Pan ◽  
Yen ◽  
Wang ◽  
Sun ◽  
Huang ◽  
...  
Keyword(s):  
Power Generation ◽  
Tracking System ◽  
Pv System ◽  
Optical Efficiency ◽  
Pv Panel ◽  
System A ◽  
Solar Tracking ◽  
Higher Power ◽  
Fixed Type ◽  
The Cost

: This study presents a misalignment light-guiding module to increase the effectiveness of absorbing light. For a general fixed-type photovoltaic (PV) panel, the misalignment light decreases the efficiency of the system. A solar tracking system was installed for obtaining higher power generation. However, the cost of the PV system and maintenance was 5–10 times higher than the general type. In this study, this module is composed of an array of misalignment light-guiding units that consist of a non-axisymmetric compound parabolic curve (NACPC) and a freeform surface collimator. The NACPC efficiently collects the misalignment light within ±30° and guides the light to the collimator. The light has a better uniformity and smaller angle at the exit aperture. The simulation results show that the optical efficiency of the unit was above 70% when the misalignment angle was smaller than 20°. The experimental results show that the power generation of the light-guiding unit was 1.8 times higher than the naked PV panel.

Design and Performance Analysis of Automatic Solar Tracking System

2015 ◽  
Vol 793 ◽  
pp. 353-357
Author(s):  
F.S. Abdullah ◽  
H.M. Nuhafiz ◽  
O. Mardianaliza ◽  
A. Yusof ◽  
Noor Anida
Keyword(s):  
Performance Analysis ◽  
Power Supply ◽  
Electronic Circuit ◽  
Tracking System ◽  
Solar Panel ◽  
Solar Irradiation ◽  
Dc Motors ◽  
Solar Tracking ◽  
Solar Tracker ◽  
And Performance

Solar tracker is a device that detects the movement of the sun. Solar tracker receive maximum sun ray in order to produce the maximum power supply by the photovoltaic (PV) panels system. It also depends on the environment factor such as solar irradiation and temperature of the panels. This paper presents the development of the automatic solar tracking system, the construction of the sensor circuit, programming of the control system and also its performance analysis. This automatic solar tracking system is designed with an electronic circuit control using PIC that can trigger the dc motors when the LDR sensors detect sunlight. DC motor will move vertical and 360 ̊ horizontal to increase efficiency of sunlight to the solar panel. Solar panel for the project gets power supply from the battery. The battery will be charged using power from the solar panel.

scholarly journals Prospects for the development of the energy complex of the North-East of Russia

2021 ◽  
Vol 23 (3) ◽  
pp. 73-84
Author(s):  
N. S. Volotkovskaya ◽  
A. S. Semenov ◽  
Y. V. Bebikhov ◽  
V. A. Shevchuk ◽  
O. V. Fedorov
Keyword(s):  
Electric Power ◽  
Power Supply ◽  
Electricity Consumption ◽  
Energy Sector ◽  
Electricity Production ◽  
Energy Complex ◽  
North East ◽  
The North ◽  
Current State ◽  
The Republic

THE PURPOSE. To analyze scenarios for the development of the energy complex of one of the regions of the North-East of Russia for the period up to 2030 with a target vision until 2050. This will require an analysis of the current state of the energy complex; show the latest changes in the power supply system; propose promising areas for the transfer of electricity. METHODS. To assess the current state of the electric power industry, from the point of view of the most efficient use of natural energy resources and the potential of the energy sector of the economy, methods of collecting and processing statistical data were applied. For the technical assessment of the state of electric power facilities, analytical and logical- probabilistic methods for determining reliability were applied. To predict energy consumption, mathematical modeling methods were used with the construction of approximating polynomials. RESULTS. The article evaluates the strategic and moderate scenarios for the development of the energy sector of the Republic of Sakha (Yakutia) in modern conditions, taking into account the increase in the energy efficiency of the region's economy. The indicators of electricity consumption throughout the republic, the Western Energy District and the decentralized power supply zone were subject to assessment. Long-term forecasts made do not confirm the development of events according to a more stringent strategic scenario. At the same time, the results for the moderate scenario are fully correlated with both the current state of the energy sector and the prospects for its development. CONCLUSION. Analysis of the current state and assessment of scenarios for the development of the energy sector of the republic's economy showed an increase in the reliability of power supply systems when organizing a "ring" in the Western Energy District; increase in useful electricity consumption by 2030; increase in electricity production; changes in the structure of electricity production.

Technical and Economic Analysis of BIPV Project in a University Campus of Beijing

2012 ◽  
Vol 450-451 ◽  
pp. 1477-1481
Author(s):  
Chun Xia Jia ◽  
Yi Ping Guo ◽  
Shu Long Teng
Keyword(s):  
Cost Effectiveness ◽  
Power Supply ◽  
University Campus ◽  
Cost Effectiveness Ratio ◽  
Pv System ◽  
Fossil Energy ◽  
Technical And Economic Analysis ◽  
Building Integrated Photovoltaic ◽  
The Cost ◽  
Campus Building

The campus building-integrated photovoltaic project is introduced in the paper. The installed gross power of the PV system is 470 KW, and its generation index is 173.7 KWh/m2.Compared with the traditional municipal power supply, the unit incremental cost of photovoltaic is 53.5 RMB/W and the cost effectiveness ratio is 1.75 RMB/KWh. However utilization of PV system will save fossil energy, lower pollutions and greenhouse gases obviously.

scholarly journals Effect of Solar Tracking on the Economic Viability of a Large-Scale PV Power Plant

2020 ◽  
Vol 24 (3) ◽  
pp. 55-65
Author(s):  
Ephraim Bonah Agyekum ◽  
Bright Kwame Afornu ◽  
Michael Nii Sanka Ansah
Keyword(s):  
Power Plant ◽  
Discount Rate ◽  
Power Plants ◽  
Large Scale ◽  
Net Present Value ◽  
Tracking System ◽  
Energy Technologies ◽  
Cost Of Energy ◽  
Solar Tracking ◽  
The Cost

AbstractThis paper evaluated the economic potential of three different photovoltaic energy technologies at a selected site, Wa, in the Upper West region of Ghana. The cost of energy and net present value metrics were used to ascertain the cost-effectiveness of these technologies (fixed, single and double axis tracker systems). From the analysis, all three technologies are economically viable at the selected site, however, a sensitivity analysis shows that the fixed axis tracker is unviable at a discount rate above 2 % whiles that of the single and double axis power plants also become impracticable at a discount rate above 6 % using the financial input parameters adopted for the study. This is an indication that, even though the selected site may have the required solar radiation for the development of large-scale PV power plant, there is the need to create the necessary conducive financial environment to enable such projects to become viable. The double axis tracking system was identified as the optimum system that should be deployed at the selected site to get the best in terms of affordability of electricity to consumers and equity payback.

Electricity Production from Small-Scale Photovoltaics in Urban Areas

2015 ◽  
pp. 124-161
Author(s):  
Constantinos S. Psomopoulos ◽  
George Ch. Ioannidis ◽  
Stavros D. Kaminaris
Keyword(s):  
Urban Areas ◽  
Low Cost ◽  
Electricity Production ◽  
Small Scale ◽  
Production Data ◽  
Solar Photovoltaic ◽  
Pv System ◽  
The World ◽  
The Cost ◽  
Utility Scale

The interest in solar photovoltaic energy is growing worldwide. Today, more than 40GW of photovoltaics have been installed all over the world. Since the 1970s, the PV system price is continuously dropping. This price drop and the adaptation of feed-in tariffs at governmental or utility scale have encouraged worldwide application of small-scale photovoltaic systems. The objective of this chapter is to present the potential for electricity production focusing mainly on the benefits of small-scale installations in urban areas, along with the growth of the global photovoltaics market. The types of installation alternatives are described but the focus is on the rooftop installations due to their simplicity and relatively low cost for urban areas. Electricity production data are presented together with their technical characteristics. Furthermore, analysis of the cost reduction is attempted and the benefits gained from the implementation of small-scale systems are also presented, demonstrating the sustainability role they will play.

scholarly journals Prospects for the development of the energy complex of the North-East of Russia

2021 ◽  
Vol 23 (3) ◽  
pp. 58-69
Author(s):  
N. S. Volotkovskaya ◽  
A. S. Semenov ◽  
Y. V. Bebikhov ◽  
V. A. Shevchuk ◽  
O. V. Fedorov
Keyword(s):  
Electric Power ◽  
Power Supply ◽  
Electricity Consumption ◽  
Energy Sector ◽  
Electricity Production ◽  
Energy Complex ◽  
North East ◽  
The North ◽  
Current State ◽  
The Republic

THE PURPOSE. To analyze scenarios for the development of the energy complex of one of the regions of the North-East of Russia for the period up to 2030 with a target vision until 2050. This will require an analysis of the current state of the energy complex; show the latest changes in the power supply system; propose promising areas for the transfer of electricity. METHODS. To assess the current state of the electric power industry, from the point of view of the most efficient use of natural energy resources and the potential of the energy sector of the economy, methods of collecting and processing statistical data were applied. For the technical assessment of the state of electric power facilities, analytical and logical- probabilistic methods for determining reliability were applied. To predict energy consumption, mathematical modeling methods were used with the construction of approximating polynomials. RESULTS. The article evaluates the strategic and moderate scenarios for the development of the energy sector of the Republic of Sakha (Yakutia) in modern conditions, taking into account the increase in the energy efficiency of the region's economy. The indicators of electricity consumption throughout the republic, the Western Energy District and the decentralized power supply zone were subject to assessment. Long-term forecasts made do not confirm the development of events according to a more stringent strategic scenario. At the same time, the results for the moderate scenario are fully correlated with both the current state of the energy sector and the prospects for its development. CONCLUSION. Analysis of the current state and assessment of scenarios for the development of the energy sector of the republic's economy showed an increase in the reliability of power supply systems when organizing a "ring" in the Western Energy District; increase in useful electricity consumption by 2030; increase in electricity production; changes in the structure of electricity production.

scholarly journals A Prototype solar tracking system design and implementation

2020 ◽  
Vol 12 (01) ◽  
pp. 32-37
Author(s):  
Abbas F. Nori ◽  
◽  
Faisel G. Mohammed
Keyword(s):  
System Design ◽  
Tracking System ◽  
Weather Conditions ◽  
Electricity Production ◽  
The Sun ◽  
Design And Implementation ◽  
Optical Detector ◽  
Solar Tracking ◽  
Fixed System ◽  
Better Than

In this work comparison between the results of the first systems is a fixed solar and the second is the sun tracking in an attempt to increase the proportion of electricity production. Here a microcontroller (Arduino) and the light-dependent resistor (LDR) photo detector is used in this tracker. And then compare the results in different weather conditions and on different days to test the efficiency of the two systems. The efficiency of the tracking system is better than the fixed system by 12.3% on a sunny day and 4.9% on a partly cloudy day. However, it failed by 3.3% on a cloudy day. With a sunny day preference in the tracking system at 6.9% of partially cloudy days, and 12.1% with partially cloudy to a cloudy day. And verified from The efficiency of the work of the microcontroller (Arduino) system and the optical detector (LDR).

scholarly journals Improving the Solar Reliability Factor of a Dual-Axis Solar Tracking System Using Energy-Efficient Testing Solutions

Energies ◽  
2021 ◽  
Vol 14 (7) ◽  
pp. 2009
Author(s):  
Sorin Liviu Jurj ◽  
Raul Rotar ◽  
Flavius Opritoiu ◽  
Mircea Vladutiu
Keyword(s):  
Energy Efficient ◽  
Tracking System ◽  
Electricity Consumption ◽  
Economic Loss ◽  
Fault Coverage ◽  
Test Time ◽  
Pv System ◽  
Reliability Factor ◽  
Solar Tracking ◽  
Energy Domain

This paper presents an improved mathematical model for calculating the solar test factor (STF) and solar reliability factor (SRF) of a photovoltaic (PV) automated equipment. By employing a unified metrics system and a combined testing suite encompassing various energy-efficient testing techniques, the aim of this paper is to determine a general fault coverage and improve the global SRF of a closed-loop dual-axis solar tracking system. Accelerated testing coupled with reliability analysis are essential tools for assessing the performance of modern solar tracking devices since PV system malfunctioning is directly connected to economic loss, which is an important aspect for the solar energy domain. The experimental results show that the unified metrics system is potentially suitable for assessing the reliability evaluation of many types of solar tracking systems. Additionally, the proposed combined testing platform proves efficient regarding fault coverage (overall coverage of 66.35% for all test scenarios), test time (an average of 275 min for 2864 test cycles), and power consumption (zero costs regarding electricity consumption for all considered test cases) points of view.

scholarly journals Grid-Connected Photovoltaic Systems with Single-Axis Sun Tracker: Case Study for Central Vietnam

Energies ◽  
2020 ◽  
Vol 13 (6) ◽  
pp. 1457 ◽  
Author(s):  
Xuan Cuong Ngo ◽  
Thi Hong Nguyen ◽  
Nhu Y Do ◽  
Duc Minh Nguyen ◽  
Dai-Viet N. Vo ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Tracking System ◽  
Energy Gain ◽  
Linear Actuator ◽  
Net Energy ◽  
Total Energy Consumption ◽  
Pv System ◽  
Pv Systems ◽  
Solar Tracking ◽  
Central Vietnam

Recently, the demand for small grid-connected photovoltaic (PV) systems has been rapidly increasing; this is due to the reduction in the costs of grid-connected storage systems as compared to those of the stand-alone ones. Notably, the performance of the solar tracking system is not only depending on the types but also the region that they are set up and used. To understand how solar tracking systems work globally, we need to know their performance in each country and even the different parts of a country. In this study, two grid-connected PV systems with 250 W solar modules were used to investigate the efficient improvement of a single-axis sun tracking system in Central Vietnam. First, a mechanical tracking device with a linear actuator and a controller was designed and then its performance was comprehensively investigated with a grid-connected PV system. In addition to evaluating the energy gain by the tracking system, this study also considered the energy consumption of the linear actuator with its controller and a small grid-connected PV system; this has generally been omitted in previous works. Experimental results indicate that the total energy consumption of the tracking system was approximately 2–8% of the energy generated by the grid-connected PV system. The maximum overall energy generation was confirmed to have increased by up to 30.3% on a sunny day upon using the proposed tracking system; further, the net energy gain by using the sun tracker was ascertained to be 15.2% in average weather conditions. Based on the success of this work, we will keep experimenting with other parts of Vietnam. Also, we will collaborate with colleagues in other countries to create a guideline for understanding and using the solar tracker regionally and globally.

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