Impact of Storage Integrated Solar Photovoltaics (PV) Power System on Utility Peak Loads

2011 ◽  
Author(s):  
K. Agyenim-Boateng ◽  
R. F. Boehm
Keyword(s):  
Large Scale ◽  
Peak Load ◽  
Average Energy ◽  
Transient Behavior ◽  
Climatic Conditions ◽  
Photovoltaic System ◽  
Solar Pv ◽  
Pv System ◽  
Grid Load ◽  
The Impact

The promise of large-scale use of renewables such as wind and solar for supplying electrical power is tempered by the sources’ transient behavior and the impact this would have on the operation of the grid. One way of addressing this is through the use of supplemental energy storage. While the technology for the latter has not been proven on a large scale or to be economical at the present time, some assessments of what magnitude is required can be made. In performing this work we have used NREL’s Solar Advisor Model (SAM 2010) with TMY3 solar data to estimate the photovoltaic system power generation. Climatic conditions close to load centers were chosen for the simulations. Then the PV output for varying sizes of arrays were examined and the impact of varying amounts of storage investigated. The storage was characterized by maximum limiting energy and power capacities based on annual hourly peak load, as well as its charging and discharging efficiencies. The simulations were performed using hourly time steps with energy withdrawn from, or input to, storage only after considering base generation and the PV system output in serving the grid load. In this work, we examined the load matching capability of solar PV generation (orientated for maximum summer output) for a sample Southwestern US utility grid load of 2008. Specifically we evaluated the daily and seasonal peak load shifting with employing varying storage capacities. The annual average energy penetration based on the usable solar PV output is also examined under these conditions and at different levels of system flexibility.

scholarly journals The Technical Challenges Facing the Integration of Small-Scale and Large-scale PV Systems into the Grid: A Critical Review

Electronics ◽  
2019 ◽  
Vol 8 (12) ◽  
pp. 1443 ◽  
Author(s):  
Abdullah Alshahrani ◽  
Siddig Omer ◽  
Yuehong Su ◽  
Elamin Mohamed ◽  
Saleh Alotaibi
Keyword(s):  
Large Scale ◽  
Distribution Network ◽  
Small Scale ◽  
Energy Access ◽  
Solar Pv ◽  
Pv System ◽  
Pv Systems ◽  
Technical Challenges ◽  
Technical Solutions ◽  
The Impact

Decarbonisation, energy security and expanding energy access are the main driving forces behind the worldwide increasing attention in renewable energy. This paper focuses on the solar photovoltaic (PV) technology because, currently, it has the most attention in the energy sector due to the sharp drop in the solar PV system cost, which was one of the main barriers of PV large-scale deployment. Firstly, this paper extensively reviews the technical challenges, potential technical solutions and the research carried out in integrating high shares of small-scale PV systems into the distribution network of the grid in order to give a clearer picture of the impact since most of the PV systems installations were at small scales and connected into the distribution network. The paper reviews the localised technical challenges, grid stability challenges and technical solutions on integrating large-scale PV systems into the transmission network of the grid. In addition, the current practices for managing the variability of large-scale PV systems by the grid operators are discussed. Finally, this paper concludes by summarising the critical technical aspects facing the integration of the PV system depending on their size into the grid, in which it provides a strong point of reference and a useful framework for the researchers planning to exploit this field further on.

scholarly journals Behavior of Photovoltaic System during Solar Eclipse in Prague

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Martin Libra ◽  
Pavel Kouřím ◽  
Vladislav Poulek
Keyword(s):  
Solar Eclipse ◽  
Power Plants ◽  
Large Scale ◽  
Relative Size ◽  
Photovoltaic System ◽  
Natural Phenomenon ◽  
Pv System ◽  
Theoretical Assumption ◽  
Pv Panel ◽  
The Impact

PV power plants have been recently installed in very large scale. So the effects of the solar eclipse are of big importance especially for grid connected photovoltaic (PV) systems. There was a partial solar eclipse in Prague on 20th March 2015. We have evaluated the data from our facility in order to monitor the impact of this natural phenomenon on the behavior of PV system, and these results are presented in the paper. The behavior of PV system corresponds with the theoretical assumption. The power decrease of the PV array corresponds with the relative size of the solar eclipse.I-Vcharacteristics of the PV panel correspond to the theoretical model presented in our previous work.

scholarly journals Power Quality and Performance Analysis of Grid-Connected Solar PV System Based on Recent Grid Integration Requirements

2021 ◽  
Vol 2021 ◽  
pp. 1-14
Author(s):  
Estifanos Abeje Sharew ◽  
Habtemariam Aberie Kefale ◽  
Yalew Gebru Werkie
Keyword(s):  
Power Quality ◽  
High Harmonic ◽  
Harmonic Distortion ◽  
Distribution Networks ◽  
Photovoltaic System ◽  
Solar Pv ◽  
Pv System ◽  
Solar Pv System ◽  
Maximum Penetration ◽  
The Impact

The electrical energy demand is steadily growing, and hence, the integration of photovoltaic system to the distribution networks is also dramatically increasing though it has a significant effect on the network’s power quality. The purpose of this paper is to analyze the impact of solar PV integration on the power quality of distribution networks. The study is conducted using ETAP software, taking one of the radial distribution networks available in Bahir Dar city during the peak of connected loads which has the least voltage profile. Furthermore, the optimal location of the PV in the network is done using particle swarm optimization. Accordingly, the appropriate location of the PV system is determined to be the farthest end bus (bus 34). Also, the impact in terms of voltage and current harmonic distortion on the distribution feeder network is comparatively discussed by comparing the distribution system parameters with different penetration levels of solar PV system. The simulation results obtained demonstrate that high harmonic distortion level is injected correspondingly as the penetration capacity of PV system increased which indicates that the solar PV system should be integrating only up to a maximum possible capacity the network can carry. The integration of the PV system beyond this maximum penetration level causes production of high harmonic distortion which adversely affects the system performance. At the maximum penetration level which allows the acceptable harmonic distortion limit, the total voltage harmonic distortion and current demand distortion are found to be 4.97% and 14.98%, respectively.

scholarly journals MPPT Charge Controller Design in a Solar PV System Under Rapidly Changing Climate Condition

2019 ◽  
pp. 1-8
Author(s):  
Mostafizur Rahman ◽  
Md. Mahmudur Rahman
Keyword(s):  
Controller Design ◽  
Computer Software ◽  
Climatic Conditions ◽  
Maximum Power ◽  
Photovoltaic System ◽  
Solar Pv ◽  
Pv System ◽  
Maximum Power Point ◽  
Maximum Power Point Tracker ◽  
Power Point

This paper presents a detailed theoretical study of photovoltaic (PV) systems and their operation using the MPPT (Maximum Power Point Tracking) method and presents the simulation of photovoltaic modules validated by computer software simulation followed by an experimental setup of MATLAB R2017a. The first approach to build the performance of a photovoltaic solar panel is to use a maximum power point tracker in rapidly changing climatic conditions and use a DC-DC converter to maximize the output power. This framework can operate at the maximum power point MPP and produces its highest power in different irradiance conditions when the solar panels are partially shaded. The main perspectivesis design and simulation of a simple but efficient charge controller by utilizing maximum power point tracker for photovoltaic system and analysis results show that this MPPT system with perturb & observe (P&O) method and the DCDC Boost converter can significantly increase the efficiency and the performance of PV.

scholarly journals Inverter Control Performance Study on Solar PV Systems and Its Effect on Power Quality

2020 ◽  
Vol 6 (7) ◽  
Author(s):  
Vandana Tiwari
Keyword(s):  
Power Generation ◽  
Fossil Fuels ◽  
Peak Load ◽  
Photovoltaic System ◽  
Energy Curve ◽  
Solar Pv ◽  
Performance Study ◽  
Pv System ◽  
Comprehensive Overview ◽  
Grid Connection

Power generation faces a major challenge in meeting peak load requirements. Energy suppliers are highly dependent on fossil fuels due to the limited resources of non-renewable energy production. Therefore, researchers and scientists are looking for distributed generators (DGs) to provide additional power during peak periods of the energy curve. Solar energy gives them an extra twist to meet the load demand during this time. As a result, the grid-based solar photovoltaic (PV) system is attracting particular attention from researchers and industry in order to reduce the burden of fossil fuel power generation. Single-stage and two-stage photovoltaic systems are suitable for grid connection with or without battery holder. This article provides a comprehensive overview of a grid connected solar system. The entire architecture of the on-grid photovoltaic system includes the construction of a photovoltaic generator, MPPT methods and DC-DC converters.

scholarly journals Performance comparison of fixed and single axis tracker photovoltaic system in large scale solar power plants in Malaysia

2021 ◽  
Vol 21 (1) ◽  
pp. 10
Author(s):  
Baraa Mahmoud Dawoud ◽  
Siow Chun Lim
Keyword(s):  
Power Plants ◽  
Large Scale ◽  
Solar Power ◽  
Peninsular Malaysia ◽  
Performance Comparison ◽  
Photovoltaic System ◽  
Energy Yield ◽  
Solar Pv ◽  
Pv System ◽  
Comparative Performance

<span>Malaysia is rapidly expanding the generation capacity of solar power through large scale solar (LSS) projects with the aim to achieve 20% renewable energy mix by 2025. This has motivated many solar industry players to explore the usage of solar PV with single axis tracker (SAT) system. However, many are still hesitant due to the lack of understanding on the comparative performance between fixed mounted solar PV with solar PV with SAT system. This paper aims to provide a comparative analysis on the performance of both systems. Simulation using PVSyst 6.83 was performed in five potential LSS sites spread across Peninsular Malaysia in Perlis, Kelantan, Pahang, Selangor and Johor with the same installed capacity of 10.32MWp. The energy yield and capacity factor for 21 years were simulated. On the average, it was found that SAT outperforms fixed mounted solar PV system by 15.08% based on their performance on their first year operation. </span>

scholarly journals Study Solar Energy Usage and Evaluation Activities around Bahir Dar, Ethiopia

2021 ◽  
Author(s):  
ADDISU WORKU BEZABIH
Keyword(s):  
Solar Energy ◽  
Power Systems ◽  
Large Scale ◽  
Public Awareness ◽  
Impact Factors ◽  
Solar Pv ◽  
Pv System ◽  
Standard Design ◽  
Mathematical Formulas ◽  
The Impact

Abstract Although solar energy is abundant, accessible, affordable, and ecologically and environmentally friendly, in rural Ethiopia, the majority of Households are still using pollutant kerosene for lighting. The researcher assess factors that influence dissemination activities, like solar PV installation practices, house and institutional system distribution strategies, system failures, and their causes. Additionally, The researcher analyzed the impact of PV orientation, comparing the simulation results currently performed by the PVsyst software with different angles observed during the sphere survey. This made it possible to influence the dissemination activity factors and, therefore, the best orientation. The study also assessed how access to alter, maintenance, lack of public awareness building, institutional problems, tariffs, and lack of a market could affect PV system access and large-scale distribution. To distribute a sufficient amount of solar PV across the country, this study recommends that consideration of distribution impact factors be considered in the most negligible levels to realize maximum results. The PV system could be a tilt at angles of 160 and 00 azimuths; supported by this method, the PV system can collect a mean of 5.36 kW/m2daily, which implies 1929.6 kW/m2/year. This was the vision that the researcher wish to possess a sustainable supply of energy within the country and reduce emissions from biomass.Thus, adapting standard design practices of mathematical formulas, experimental and PVsyst methods through numerical simulation is critical to identifying ways to enhance the efficiency and reliability of stand-alone PV power systems for further practicality within the region.

scholarly journals Evaluation of the Photovoltaic System Installation Impact to an Electric Power Grid Part 1: Simulation of photovoltaic generation by applying a meteorological model

2015 ◽  
Vol 9 (4) ◽  
pp. 90
Author(s):  
Juan Ernesto Wyss Porras ◽  
Sususmu Shimada ◽  
Jun Yoshino ◽  
Tomonao Kobayashi
Keyword(s):  
Electric Power ◽  
Solar Irradiance ◽  
Large Scale ◽  
Power Grid ◽  
Photovoltaic System ◽  
Series Data ◽  
Pv System ◽  
Electric Power Grid ◽  
The Impact ◽  
Grid Management

The impact of the installation of a large-scale photovoltaic (PV) system to the electric power grid management is analyzed numerically in this series of works. In this part 1, the solar irradiance at the target country, Guatemala, is evaluated with a weather forecasting model, and PV energy potential is estimated. From the computed potential distribution, the appropriate area for installation of a large-scale PV system is selected. This area is where the solar irradiance is large and the energy consumption regions are close by. The optimal tilted angle of the PV panels is proposed as well from the PV output simulation. The time series data of the PV output is also evaluated in this part, and it will be applied to the analysis of the impact of the PV installation to the electric power grid management in the following part of this series of works.

Harnessing Solar Energy Through Photovoltaic System in Chandigarh: A Step Towards Preparing for Climate Change

2019 ◽  
Vol 65 (2) ◽  
pp. 325-345
Author(s):  
Purva Mishra
Keyword(s):  
Climate Change ◽  
Solar Energy ◽  
Ghg Emissions ◽  
Photovoltaic System ◽  
Primary Data ◽  
Solar Pv ◽  
Pv System ◽  
Decisive Action ◽  
The Impact

Climate is rapidly changing with disruptive impacts. Without decisive action, energy-related greenhouse gas (GHG) emissions would lead to climate degradation. All types of energy efficiency technologies will require widespread deployment, as global warming is likely to reach 1.5°C between 2030 and 2052, if it continues to increase at the current rate. Photovoltaic (PV) energy is one of the most promising emerging technologies in mitigating the impact of climate change. PV is the name of a method of converting solar energy into direct current electricity. Therefore, the objectives of this article are to study the initiatives taken by energy development agencies in India for promoting renewable sources of energy, to study the use of solar power as a renewable source of energy through PV system and to analyse the solar PV rooftop system in Chandigarh as a case study. The article is an empirical study based on primary data. For the purpose of collecting the primary data, a structured questionnaire was prepared for citizens and an interview schedule for officials. The results of the study show that the majority of the citizens were satisfied with the solar photovoltaic (SPV) installations in Chandigarh, while a very few of them were dissatisfied and their dissatisfaction revolved around getting clearances from different departments.

scholarly journals Researches of the Impact of the Nominal Power Ratio and Environmental Conditions on the Efficiency of the Photovoltaic System: A Case Study for Poland in Central Europe

2020 ◽  
Vol 12 (15) ◽  
pp. 6162
Author(s):  
Mariusz T. Sarniak
Keyword(s):  
Climatic Conditions ◽  
Photovoltaic System ◽  
Energy Yield ◽  
Power Ratio ◽  
Pv System ◽  
Second Stage ◽  
Pv Inverter ◽  
System A ◽  
The Impact

The paper analyzes a case study of the impact of changing the nominal power ratio (NPR) on the efficiency of a PV (photovoltaic) system located in Poland. In the first stage of the research, the acceptable range of variability for NPR was determined based on simulation calculations, taking into account the parameters of PV modules, inverter, and climatic conditions. The second stage was verification tests for two acceptable extreme cases, carried out based on the analysis of detailed data from the monitoring of PV installations. The results of the verification tests for the two considered periods of operation of the PV system with the change of the NPR coefficient from 82% to 98% resulted in an increase in the annual energy yield by 446.2 kWh. On the other hand, higher relative values of generated energy were obtained only for the months with the lowest insolation in December and in January by 8.2 and 6.04 kWh/kWp, respectively. Higher oversizing of the PV generator (for NPR = 82%) also resulted in an increase by 6.4% in the frequency of operation of the PV inverter in the largest power range (2250–2500 W) and a decrease by 3.7% in the frequency in the lowest power range (0–250 W) for the whole year.

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