scholarly journals Sizing verification of a 4kWp retrofitted grid-connected photovoltaic system: a case study in Shah Alam, Malaysia

2020 ◽  
Vol 17 (2) ◽  
pp. 654
Author(s):  
F.A.M. Shukor ◽  
H. Zainuddin ◽  
A. Manja ◽  
F. L. M. Khir
Keyword(s):  
Renewable Energy ◽  
Nuclear Energy ◽  
Best Practice ◽  
Photovoltaic System ◽  
Pv System ◽  
Simulation Tools ◽  
Array Configuration ◽  
System A ◽  
Mathematical Design

Electricity are commonly generated from several types of energy resources such as fossil and nuclear energy. However, due to emission of carbon dioxide from both sources, renewable energy is introduced to provide a clean and secure sustainable energy. One of the potential renewable energy application is Photovoltaic (PV) system; namely grid-connected photovoltaic (GCPV) system and stand-alone photovoltaic (SAPV) system. In this study, a mathematical approach of SEDA’s GCPV sizing model is implemented to size a 4kWp of a retrofitted GCPV system by the method claimed to be the best practice mathematical design model under tropical climate Malaysia.  The outcome of the sizing approach will then be evaluated with HelioScope software, one of commercial simulation tools available in current market.  The final result obtained from both methods shows that the final PV array configuration is 1 x 12 (parallel x series) which is in agreement to the actual installed system.

scholarly journals Feasibility Study on Installation of Rooftop Photovoltaic System in Complied with Thailand Energy Building Code

2020 ◽  
Vol 186 ◽  
pp. 01004
Author(s):  
Pathomthat Chiradeja ◽  
Atthapol Ngaopitakkul
Keyword(s):  
Renewable Energy ◽  
Energy Consumption ◽  
Electrical Power ◽  
Current Trend ◽  
Building Energy ◽  
Photovoltaic System ◽  
Solar Pv ◽  
Economic Perspective ◽  
Pv System

Renewable energy especially solar energy has become a significant part in electrical power generation with its advantage in the environmentally friendly and current trend of decrease in installation cost. The photovoltaic (PV) system on a rooftop is one of the power generating system based on renewable energy that can fit building to utilize space efficiently. This paper is analyzing the feasibility of installing a solar PV rooftop on the building using a case study building located in Bangkok, Thailand. The performance will be evaluated in term of both energy and economic perspective. The comparison with Thailand building energy code also been done to show that overall energy consumption with PV system complies with the law. The result has shown that with rooftop photovoltaic system installation, annual energy consumption in the building can be reduced significantly and it can achieve feasibility in term of economic perspective.

scholarly journals Sizing a 3 kWp Retrofitted Grid-Connected Photovoltaic System: a Case Study in Tropical Malaysia

2019 ◽  
Vol 7 (4.14) ◽  
pp. 466
Author(s):  
Hedzlin Zainuddin ◽  
Farah Liyana Muhammad Khir ◽  
NA Baharudin ◽  
ZAbd Rahman
Keyword(s):  
Customer Satisfaction ◽  
Photovoltaic System ◽  
Energy Yield ◽  
Mathematical Approach ◽  
Array Configuration ◽  
Pv Array ◽  
System A ◽  
Percentage Difference ◽  
And Performance

The work presents a tropical case study of sizing 3 kWp retrofitted  grid-connected photovoltaic system (GCPV) installed in Klang, Malaysia. The sizing was based on customer’s budget requirement of RM 22, 500 and conducted through a designated mathematical approach. The mathematical approach involved technical aspects which aligns the voltage and current specifications of both PV array and inverter. Besides, this approach includes possible severe climatic condition of solar irradiance and ambient temperature variations. By implementing the sizing mathematical approach in this study, the final PV array configuration is 1 x 9 (1 parallel x 9 series). This study was also conducted to compare between the actual and the predicted energy yield to reflect customer satisfaction. Based on the result, the percentage differences are acceptable for February and March 2018. Interestingly, the percentage difference for January 2018 was over-predicted and the abnormality was suggested to be resulted from the inaccuracy of the Peak Sun Hour (PSH) estimation. In conclusion, this study is significant as an overview on the sizing and performance reliability of GCPV system in tropical Malaysia to meet up the customer satisfaction. 

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.

scholarly journals Influence of Artificial and Natural Cooling on Performance Parameters of a Solar PV System: A Case Study

IEEE Access ◽  
2021 ◽  
Vol 9 ◽  
pp. 29449-29457
Author(s):  
Subhash Chandra ◽  
Arvind Yadav ◽  
Mohd Abdul Rahim Khan ◽  
Mukesh Pushkarna ◽  
Mohit Bajaj ◽  
...  
Keyword(s):  
Performance Parameters ◽  
Solar Pv ◽  
Pv System ◽  
System A ◽  
Solar Pv System

scholarly journals Optimisation of Energy Accumulation for Renewable Energy Sources

2021 ◽  
Vol 19 ◽  
pp. 205-210
Author(s):  
Milan Belik ◽  
Keyword(s):  
Renewable Energy ◽  
Model Building ◽  
Residential Buildings ◽  
Renewable Energy Sources ◽  
Photovoltaic System ◽  
Energy Sources ◽  
Pv System ◽  
Energy Accumulation ◽  
Wind Power Station ◽  
Future Production

This project focuses on optimisation of energy accumulation for various types of distributed renewable energy sources. The main goal is to prepare charging – discharging strategy depending on actual power consumption and prediction of consumption and production of utilised renewable energy sources for future period. The simulation is based on real long term data measured on photovoltaic system, wind power station and meteo station between 2004 – 2021. The data from meteo station serve as the input for the simulation and prediction of the future production while the data from PV system and wind turbine are used either as actual production or as a verification of the predicted values. Various parameters are used for trimming of the optimisation process. Influence of the charging strategy, discharging strategy, values and shape of the demand from the grid and prices is described on typical examples of the simulations. The main goal is to prepare and verify the system in real conditions with real load chart and real consumption defined by the model building with integrated renewable energy sources. The system can be later used in general installations on commercial or residential buildings.

scholarly journals Optimal Configuration and Sizing of Seaport Microgrids including Renewable Energy and Cold Ironing—The Port of Aalborg Case Study

Energies ◽  
2022 ◽  
Vol 15 (2) ◽  
pp. 431
Author(s):  
Nur Najihah Abu Bakar ◽  
Josep M. Guerrero ◽  
Juan C. Vasquez ◽  
Najmeh Bazmohammadi ◽  
Muzaidi Othman ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Storage System ◽  
Maximum Load ◽  
Optimal Operation ◽  
Economic Feasibility ◽  
Photovoltaic System ◽  
Design Stage ◽  
Component Size

Microgrids are among the promising green transition technologies that will provide enormous benefits to the seaports to manage major concerns over energy crises, environmental challenges, and economic issues. However, creating a good design for the seaport microgrid is a challenging task, considering different objectives, constraints, and uncertainties involved. To ensure the optimal operation of the system, determining the right microgrid configuration and component size at minimum cost is a vital decision at the design stage. This paper aims to design a hybrid system for a seaport microgrid with optimally sized components. The selected case study is the Port of Aalborg, Denmark. The proposed grid-connected structure consists of renewable energy sources (photovoltaic system and wind turbines), an energy storage system, and cold ironing facilities. The seaport architecture is then optimized by utilizing HOMER to meet the maximum load demand by considering important parameters such as solar global horizontal irradiance, temperature, and wind resources. Finally, the best configuration is analyzed in terms of economic feasibility, energy reliability, and environmental impacts.

scholarly journals Performance Assessment of Installed Solar PV System: A Case Study of Oke-Agunla in Nigeria

Engineering ◽  
2012 ◽  
Vol 04 (08) ◽  
pp. 453-458 ◽  
Author(s):  
Olawale Saheed Ismail ◽  
Olusegun Olufemi Ajide ◽  
Fredrick Akingbesote
Keyword(s):  
Performance Assessment ◽  
Solar Pv ◽  
Pv System ◽  
System A ◽  
Solar Pv System

scholarly journals Multidispatch for Microgrid including Renewable Energy and Electric Vehicles with Robust Optimization Algorithm

Energies ◽  
2020 ◽  
Vol 13 (11) ◽  
pp. 2813 ◽  
Author(s):  
Ruifeng Shi ◽  
Penghui Zhang ◽  
Jie Zhang ◽  
Li Niu ◽  
Xiaoting Han
Keyword(s):  
Renewable Energy ◽  
Robust Optimization ◽  
Electric Vehicles ◽  
Optimization Algorithm ◽  
Environmental Cost ◽  
Uncertain Variables ◽  
System A ◽  
Ev Charging ◽  
Numerical Case Study

With the deterioration of the environment and the depletion of fossil fuel energy, renewable energy has attracted worldwide attention because of its continuous availability from nature. Despite this continuous availability, the uncertainty of intermittent power is a problem for grid dispatching. This paper reports on a study of the scheduling and optimization of microgrid systems for photovoltaic (PV) power and electric vehicles (EVs). We propose a mathematical model to address the uncertainty of PV output and EV charging behavior, and model scheduling optimization that minimizes the economic and environmental cost of a microgrid system. A semi-infinite dual optimization model is then used to deal with the uncertain variables, which can be solved with a robust optimization algorithm. A numerical case study shows that the security and stability of the solution obtained by robust optimization outperformed that of stochastic optimization.

The Role of User Ownership and Positive User Attitudes in the Successful Adoption in Information Systems within NHS Community Trusts

2011 ◽  
pp. 113-137
Author(s):  
Crispin R. Coombs ◽  
Neil F. Doherty ◽  
John Loan-Clarke
Keyword(s):  
Best Practice ◽  
Academic Research ◽  
Community Healthcare ◽  
System A ◽  
User Attitudes ◽  
Two Factors ◽  
Multiple Case ◽  
Organizational Sector

The factors that influence the ultimate level of success or failure of systems development projects have received considerable attention in the academic literature. However, despite the existence of a ‘best practice’ literature many projects still fail. The record of the National Health Service has been particularly poor in this respect. The research reported in this paper proposes that two additional factors; user ownership and positive user attitudes warrant further development and investigation. The current study investigated these two factors in a homogenous organizational sector, Community NHS Trusts, using a common type of information system, in order to eliminate the potentially confounding influences of sector and system. A multiple case-study design incorporating five Community Healthcare Trusts was utilized. The key results from the analysis indicated that both user ownership and positive user attitudes were important mediating variables that were crucial to the success of a CIS. In addition, it was also identified that the adoption of best practice variables had a dual role, directly influencing the level of perceived success but also facilitating the development of user ownership and positive user attitudes. These results will be of particular interest to practising IM&T managers in the NHS and also to the wider academic research community.

Sign in / Sign up

Export Citation Format

Share Document