scholarly journals Analisis Tren Konsumsi Energi Listrik pada Penyulang Singkarak

2021 ◽  
Vol 6 (3) ◽  
Author(s):  
Erliza Yuniarti ◽  
Dian Tara ◽  
Andika Pratama ◽  
Deni Rahmadi Putra
Keyword(s):  
Distribution System ◽  
Energy Use ◽  
Peak Load ◽  
Electricity Consumption ◽  
Secondary Data ◽  
Electrical Energy ◽  
Load Factor ◽  
Small Range ◽  
Small Load ◽  
Generation Capacity

Electrical energy use is an interesting topic because it is related to the operational planning of the distribution system, maintenance of medium voltage networks, and prediction of electricity consumption, especially in  the short term. Trends are created based on historical data represented in the load  curves. This research aims to determine the characteristics of the load by making load groups according to   the type of day and calculate  the load factor based on secondary data from PT. PLN (Persero) Borang substation. The research uses comparative techniques in the load groups and calculates the load factor which is the benchmark for generation  capacity. The results of the study  showed that the load trendon Singkarak feeders in  overall is the same on weekdays as on weekends, namely that  minimum load occurs in the morning at 07.00, the load starts to increase but is not significant in relation to  the activities of the population after 08.00-16.00. The load trend increases significantly from 16.00 to the peak load that occurs at 19.00-21.00 and after that, the load goes down  to the minimum load. The trend  for higher than average peak loads on Mondays is more common and weekend loads on Saturdays and Sundays only relatively small  load fluctuationsoccur.. The load group for religious holidays and national holidays received good load factor scores, with a relatively small range of loads throughout the day.

scholarly journals Short Term Forecasting of Electricity Load: A Comparison of Methods to Paiton Subsystem East Java & Bali

2019 ◽  
Vol 4 (3) ◽  
pp. 284
Author(s):  
Yunita Ardilla
Keyword(s):  
Multilayer Perceptron ◽  
Distribution System ◽  
Mechanical Energy ◽  
Peak Load ◽  
Electricity Consumption ◽  
Electrical Energy ◽  
Accuracy Rate ◽  
Short Term ◽  
Electricity Load ◽  
Short Term Forecasting

Electricity consumption in Indonesia is expected to continue to grow by average of 6,5% per year until 2020. Therefore, PT. PLN had to make an effective subsystem that can provide electrical energy based on customer needs. The electrical energy is converted from the mechanical energy and can’t be stored. Because of that reason, if the electrical energy isn’t channeled properly then PT. PLN will suffer losses. It is necessary to plan a proper distribution system of electrical energy. The aim of this research is to predict short-term electricity consumption for Paiton’s subsystem in East Java Indonesia by using ARIMA and Multilayer Perceptron. The best model is measured based on MAPE, SMAPE, and RMSE value in data sample. The result of the analysis shows that Multilayer Perceptron method provides better accuracy rate for electricity consumption forecasting in Paiton subsystem based on peak load compared to ARIMA

scholarly journals Performance Analysis of Plug-in Electric Vehicle Supported DVR for Power-Quality Improvement and Energy Back-Up Strategy

2020 ◽  
Vol 8 (6) ◽  
pp. 945-952
Keyword(s):  
Electric Vehicle ◽  
Power Quality ◽  
Distribution System ◽  
Power Flow ◽  
Fossil Fuels ◽  
Electrical Power ◽  
Peak Load ◽  
Electrical Energy ◽  
Distribution Grid ◽  
Dynamic Voltage Restorer

Electric vehicle technology becomes increasingly important as it takes care of the environmental issues related to ICE vehicle and reduces the dependency on fossil fuels. Electric vehicle being greatly dependent on the limited electrical energy provided by a battery, the power flow efficiency is very important in this context. Electric vehicle integration to the distribution grid is increased at a faster rate because it can act as power backup to the grid/local loads reducing the peak load and filling the valley point. Most of software engineers own an Electric Vehicle based on eco-friendly principles. The Batteries in the car are connected to the charging point (or) grid monitoring of State of Charging (SOC) facilities in the parking area of company. When the Renewable power (solar energy) is available, the batteries will be charged to hundred percentage of SOC. Then excess power from PV will connect to load as well as grid. When the electrical power supply cutoff the car batteries will act as a battery bank of UPS and support to the critical load with condition based Allowable SOC. The total capacity of the batteries depends upon the no of cars available at a particular shift in a day. This work proposes the power backup of EV is utilized as an UPS to Software Company as well as used to support the Dynamic Voltage Restorer (DVR) to mitigate the fault occurring in the distribution system. Additionally, the EV supported DVR compensates voltage harmonics, voltage sag-swell, voltage interruptions coming from distribution to enhance power-quality of entire EV system without any additional compensation devices. The entire system is modeled using MATLAB/SIMULINK and the results confer the feasibility of the proposed objective.

scholarly journals DETERMINAN PERILAKU RUMAH TANGGA DALAM PENGHEMATAN ENERGI LISTRIK DI WILAYAH JAWA BARAT MENGGUNAKAN STRUCTURAL EQUATION MODELING

2020 ◽  
Vol 5 (2) ◽  
pp. 121-134
Author(s):  
Siti Sadiah ◽  
Fitria Virgantari ◽  
Ani Andriyani ◽  
Sri Hartini ◽  
Dion Achmad
Keyword(s):  
Structural Equation Modeling ◽  
Structural Equation ◽  
Electricity Consumption ◽  
Secondary Data ◽  
Electrical Energy ◽  
Equation Modeling ◽  
Self Awareness ◽  
Community Activities ◽  
Individual Self ◽  
And Control

This study aims to analyze the Theory Planned of Behavior model using Structural Equation Modeling and analyze the factors that influence household behavior in electricity consumption in West Java. The data used in this study are secondary data on electricity consumption in lighting equipment obtained from the Renewable Energy and Energy Conservation database in 2016. The results showed that behavioral intention and control had a positive and significant effect on behavior, then behavior control had a positive and significant effect. significant on intention. While subjective attitudes and norms do not significantly influence intention. The indicators that influence a person's behavior factors in saving electrical energy in lighting equipment are individual self-awareness to use household appliances that are labeled energy efficient, lifestyle of individuals who often fill their time for cooking activities at home, gathering with friends and family, visiting market, stamp collection, and individuals who work as volunteers, participate in community activities, and gardening.

scholarly journals Analysis of Energy Use and Energy Savings: A Case Study of a Condiment Industry in India

Energies ◽  
2021 ◽  
Vol 14 (16) ◽  
pp. 4798
Author(s):  
Khan Rahmat Ullah ◽  
Marudhappan Thirugnanasambandam ◽  
Rahman Saidur ◽  
Kazi Akikur Rahman ◽  
Md. Riaz Kayser
Keyword(s):  
Energy Use ◽  
Energy Savings ◽  
Reactive Power ◽  
Electrical Energy ◽  
Payback Period ◽  
Load Factor ◽  
Electric Motors ◽  
Variable Speed ◽  
Variable Speed Drives ◽  
Speed Reduction

Electric motors and boilers lead the industrial components which consume the largest portion of energy in an industry. This study explores the energy audit data of the condiment industry in India. The study mainly focuses on the estimation of the load factor, energy use, energy savings and annual bill savings with payback period of the electric motors of the plant. During the audit, it was found that there were several motors running under loaded conditions despite non-availability of variable speed drives installed in the plant. Therefore, variable speed drives are recommended to be installed to save energy by reducing the motors speed by up to 60%. According to the estimation, about 276 MWh, 551 MWh and 827 MWh electrical energy can be saved for 20%, 40% and 60% speed reduction of the motors using variable speed drives, respectively, where in most of the cases the payback period remains below 1 year. Furthermore, some suggestions are made to improve the poor power factor of running motors by using capacitor banks to save the reactive power. Besides, an estimation of energy saving is performed with a 2-ton capacity boiler. Since, there was no heat recovery system in the boiler; an air-preheater is suggested to be installed at the end of flue gas exhausting path of the boiler with the purpose of saving 68 tons of fuel per annum and having a payback period of 12 months. Moreover, a digital monitoring system, namely, “The Smart Joules” has been proposed to be installed in the plant aiming at saving about 3–5% of total energy per annum and having a payback period of 19 months. Finally, a summarization is made concluding in the fact that about 90 MWh energy and 95 tons of fuel can be saved (excluding motor energy savings) per annum by implementing proposed measures with a payback period of 15 months.

scholarly journals Stability Analysis of 20 kV System at PT PLN (PERSERO) Rayon Muaralabuh before and after Interconection by IPP (PLTMH PT. SKE)

2018 ◽  
Vol 215 ◽  
pp. 01020
Author(s):  
Arfita Yuana Dewi ◽  
Asnal Effendi ◽  
Ridwan
Keyword(s):  
Distribution System ◽  
Power Flow ◽  
Voltage Drop ◽  
Rapid Development ◽  
Peak Load ◽  
Electrical Energy ◽  
Before And After ◽  
West Sumatra ◽  
Owned Company ◽  
The Stability

In the rapid development of the world as it is today, the electricity has a very important role in supporting people activities. PT PLN (Persero), which in this case as Government State Owned Company that directly manage the provision of electrical energy is required to be ready to face the development of electricity demand in Indonesia. In distribution system of electricity, problems often occure because of the length of line distribution system which cause voltage drop, technical losses, power losses, etc. One of them happened to PT PLN (Persero) Rayon Muaralabuh. Where the distance between the main substation (GI Solok) with the first connecting substation is ±110 KMS. This distance cause 9.62 % voltage drop during peak load. This nominal of voltage drop happens for just the first connecting substation that will be the source of division for all working areas of PT PLN (Persero) Rayon Muaralabuh. This factor encourages PT PLN (Persero) West Sumatra Area Solok to agree if Independent Power Plant (IPP) takes part in generating electricity, which will be distribute to PT. PLN (Persero) West Sumatera Area Solok Rayon Muaralabuh through interconnection system. The simulation of power flow using Etap 12.6.0 is used to analyze the stability of 20 kV system voltage at PT PLN (Persero) Rayon Muaralabuh before and after interconnection. Based on the result of simulation and Etap calculation, the highest voltage drop before interconnection by IPP is on Feeder express LubukGadang which is 13,71 %. After the interconnection by IPP, the voltage drop on that feeder becomes 4,326%, and the highest voltage drop is 4,855 %. Therefore, the voltage drop after the interconnection by the IPP already meets the standards allowed by SPLN No. 72 of 1987 which is maximum 5 % voltage drop. The precentage of technical losses in PT PLN (Persero) Rayon Muaralabuh before interconnection is 13,074 %, and after interconnection is decreased to 8,306 %.

Commercialization of High 600V GaN-on-Silicon Power Devices

2014 ◽  
Vol 778-780 ◽  
pp. 1174-1179 ◽  
Author(s):  
Primit Parikh ◽  
Yi Feng Wu ◽  
Li Kun Shen
Keyword(s):  
Power Systems ◽  
Energy Use ◽  
Lower Cost ◽  
Power Conversion ◽  
Electricity Consumption ◽  
Reducing Power ◽  
Electrical Energy ◽  
Performance Limits ◽  
Power Devices ◽  
Silicon Power Devices

With power conversion losses endemic in all areas of electricity consumption, broadlycategorized into motion control (accounting for around 50% of total electrical energy use), lighting,air conditioning, and information technology, consumers, governments and utilities are finding waysto achieve higher efficiency. Manufacturers of data servers, telecom systems, solar power invertersand drives for motor control are focused on reducing power conversion losses while simultaneouslyshrinking the size of power systems. Although silicon has historically been the base device materialused by the power conversion industry, it is rapidly reaching its physical performance limits. GaNsemiconductors solutions reduce power conversion loss by over 50% in a significantly smaller formfactor and at a lower cost, when device design, fabrication technology and application design areholistically combined to deliver superior end products.

scholarly journals Energy Consumption and Usage Reduction in Lecture Halls, Kwame Nkrumah University of Science and Technology

2021 ◽  
Author(s):  
Pius Nimoh ◽  
Daniel Duah ◽  
Alexander Marful
Keyword(s):  
Energy Consumption ◽  
Best Practices ◽  
Energy Use ◽  
Science And Technology ◽  
Electricity Consumption ◽  
Electrical Energy ◽  
High Increase ◽  
Kwame Nkrumah ◽  
World Energy ◽  
Consumption Practices

All over the world energy is used for different purposes and hence its continuous high demand which has brought about an increase in crisis and prices of energy. Ghana has faced a lot of supply and high electricity consumption challenges over a period of time. The Energy Commission of Ghana has developed regulations and guidelines to help reduce high consumption challenges among users, these included the replacement of incandescent bulbs with fluorescent bulbs, ban of importation of low energy efficient appliances. In spite of the effort to reduce electricity wastage, there is still a high increase in electricity consumption. The research investigated what contributed to electricity consumption in Kwame Nkrumah University of Science and Technology with the lecture halls as the main focus, the research also analyzed the current occupant behavior characterized by the electrical energy consumption practices. And investigated how the contemporary theories for reducing energy consumption was used in the lecture halls. A questionnaire survey was conducted to investigate occupants on their energy use practices in lecture halls that causes wastages, observation was made to establish relevant data on the use of contemporary theories for energy reduction in lecture halls. In a total of 110 occupants that responded to the questionnaire, 79 occupants almost always turn off electrical fitting and fixtures when not in use. From the responses, a majority of the occupants claimed to comply to best practices of energy use. The research concluded that some contemporary theories to reduce energy consumptions was not used and considered in the lecture halls.

scholarly journals Renewable Energy Cost Estimation on Smart On Grid Actuator Innovation for the Development of Alternative Rural Electricity

2019 ◽  
Vol 4 (2) ◽  
pp. 75-79
Author(s):  
Andjar Prasetyo
Keyword(s):  
Renewable Energy ◽  
Cost Estimation ◽  
Energy Use ◽  
Secondary Data ◽  
Electrical Energy ◽  
Economic Benefits ◽  
Primary Data ◽  
Theoretical Approaches ◽  
Solar Energy Harvesting ◽  
The City

Indonesia's target for using the energy mix through Renewable Energy (RE) is 22.5 percent in 2025. The steps taken are to optimize local energy use for electricity generation and select more efficient technologies that can reduce the cost of electricity supply. One of the pioneers carried out in the city of Magelang is the Smart on Grid Actuator (SOGA) system that converts sunlight into electrical energy. This study aims to calculate and analyze estimated costs by using the sun using SOGA System innovations. The research location in the Research and Development Agency of the City of Magelang focused on cost efficiency testing based on solar energy harvesting with SOGA. The survey on the use of SOGA innovation was conducted during October 2018 to obtain primary data. The approach to the results of previous research and theoretical approaches is intended as a reference, and secondary data complete the analysis of this study. Study analysis uses the Financial and Economic Benefits Photovoltaic Grid-Tied System projection (Utility-Based Rebate Formula). As a result, the SOGA system can reduce installed electricity costs by ± 330 USD per year and can be used for alternative rural energy development.

scholarly journals Forecasting Load on PT PLN (Persero) Metro Substations (GI) Using Combined Methods for Electrical Needs in Metro City 2019 - 2029

Electrician ◽  
2019 ◽  
Vol 13 (2) ◽  
pp. 43
Author(s):  
Candra Saigustia
Keyword(s):  
Energy Consumption ◽  
Technological Progress ◽  
Peak Load ◽  
Electricity Consumption ◽  
Electrical Energy ◽  
Growth Data ◽  
Combined Method ◽  
Energy Needs ◽  
Technological Developments ◽  
Number Of Customers

Abstract — Electricity consumption in Metro City has increased along with the increase in population, economic activity, technological progress and growth of households. Electrical energy is needed for the interests of industry, households and other activities as well as to support increasingly advanced technological developments The researcher used load forecasting with a combined method based on economic growth, population growth, and the growth of households in Metro City. The data used in this study are growth data that occurred from 2014 to 2018. The results of this paper is forecasting the number of customers, load energy consumption (MWh), total energy requirements (MWh), connected power (kVA), and peak load (MW). Energy consumption growth every year has the same tendency as in previous years. In the household sector, energy consumption will grow higher each year than other sectors. In 2029, it estimated that the peak load that will occur at Metro substations, PT PLN (Persero) Rayon Metro City is 92.62 MW.Keywords — Forecasting, Electrical Energy Needs, Combined Method, PT PLN, Metro City

scholarly journals Implementasi Demand Side Management (DSM) Pada Instalasi Pengolahan Air PDAM Mulia Baru

2020 ◽  
Vol 12 (1) ◽  
pp. 43-52
Author(s):  
Mulyono Mulyono
Keyword(s):  
Water Treatment ◽  
Peak Load ◽  
Specific Energy Consumption ◽  
Treatment Plant ◽  
Electricity Consumption ◽  
Electrical Energy ◽  
Water Treatment Plant ◽  
Time Interval ◽  
Production Volume ◽  
One Year

The Mulia Baru Water Treatment Plant (IPA) is one of 6 Water Treatment Plants owned by the Ketapang Regency PDAM that is indicated to use a large amount of electrical energy. From the data obtained during one year (January to December 2017), the average monthly electricity consumption is 128,016,667 kWh with an average.Drinking Water Production Volume per month of 144,119,833 m3. Therefore the average Specific Energy Consumption (SEC) value for 2017 is 0.89. Through the application of the Peak Clipping and Strategic Concervation DSM program, a decrease in peak load occurs at a time interval between 17:00 and 22:00, in this condition a decrease in load of 0.47 (%).For greater savings, it is necessary to schedule the operation of large loads at peak load times.

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