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

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

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Predicting the Performance of Solar Power Generation Using Deep Learning Methods

Applied Sciences ◽

10.3390/app11156887 ◽

2021 ◽

Vol 11 (15) ◽

pp. 6887

Author(s):

Chung-Hong Lee ◽

Hsin-Chang Yang ◽

Guan-Bo Ye

Keyword(s):

Power Generation ◽

Solar Energy ◽

Power Output ◽

Power Plants ◽

Solar Power ◽

Photovoltaic Cell ◽

Power Prediction ◽

Seasonal Characteristics ◽

Variable Nature ◽

Solar Power Plants

In recent years, many countries have provided promotion policies related to renewable energy in order to take advantage of the environmental factors of sufficient sunlight. However, the application of solar energy in the power grid also has disadvantages. The most obvious is the variability of power output, which will put pressure on the system. As more grid reserves are needed to compensate for fluctuations in power output, the variable nature of solar power may hinder further deployment. Besides, one of the main issues surrounding solar energy is the variability and unpredictability of sunlight. If it is cloudy or covered by clouds during the day, the photovoltaic cell cannot produce satisfactory electricity. How to collect relevant factors (variables) and data to make predictions so that the solar system can increase the power generation of solar power plants is an important topic that every solar supplier is constantly thinking about. The view is taken, therefore, in this work, we utilized the historical monitoring data collected by the ground-connected solar power plants to predict the power generation, using daily characteristics (24 h) to replace the usual seasonal characteristics (365 days) as the experimental basis. Further, we implemented daily numerical prediction of the whole-point power generation. The preliminary experimental evaluations demonstrate that our developed method is sensible, allowing for exploring the performance of solar power prediction.

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Comparison and Optimization of Heliostat Canting Methods

ASME 2007 Energy Sustainability Conference ◽

10.1115/es2007-36168 ◽

2007 ◽

Cited By ~ 1

Author(s):

R. Buck ◽

E. Teufel

Keyword(s):

Power Output ◽

Power Plants ◽

Solar Power ◽

Power Level ◽

Major Influence ◽

Optical Efficiency ◽

Tracking Method ◽

Clear Advantage ◽

Solar Power Plants ◽

Plant Power

Heliostat canting (alignment of mirror facets) is known to have a major influence on the optical efficiency of heliostat fields and therefore on the power output of solar tower plants. In recent years several canting concepts were used, mainly on- and off-axis canting. Several new canting concepts, like stretched-parabolic or target aligned canting, were proposed in order to improve the performance of heliostats. As solar power plants become economically more attractive, knowledge about the influence of canting becomes more important. In this context, the influence of several factors on the canting method is discussed and optimal canting strategies are described. The considered factors comprise plant power level, heliostat position in the field, heliostat area, receiver dimension and site latitude. It is concluded that the target aligned tracking method is superior to all other variants in the majority of cases. As for the standard azimuth-elevation tracking methods, no one of these exhibits a clear advantage. It is only the on-axis method that performs worst in all cases.

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Comparison and Optimization of Heliostat Canting Methods

Journal of Solar Energy Engineering ◽

10.1115/1.3027500 ◽

2009 ◽

Vol 131 (1) ◽

Cited By ~ 27

Author(s):

R. Buck ◽

E. Teufel

Keyword(s):

Power Output ◽

Power Plants ◽

Solar Power ◽

Power Level ◽

Major Influence ◽

Optical Efficiency ◽

Tracking Method ◽

Clear Advantage ◽

Solar Power Plants ◽

Plant Power

Heliostat canting (alignment of mirror facets) is known to have a major influence on the optical efficiency of heliostat fields and therefore on the power output of solar tower plants. In recent years several canting concepts were used, mainly on- and off-axis canting. Several new canting concepts, such as stretched-parabolic or target-aligned canting, were proposed in order to improve the performance of heliostats. As solar power plants become economically more attractive, knowledge about the influence of canting becomes more important. In this context, the influence of several factors on the canting method is discussed and optimal canting strategies are described. The considered factors comprise plant power level, heliostat position in the field, heliostat area, receiver dimension, and site latitude. It is concluded that the target-aligned tracking method is superior to all other variants in the majority of cases. As for the standard azimuth-elevation tracking methods, not one of these exhibits a clear advantage. It is only the on-axis method that performs worst in all cases.

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

Energies ◽

10.3390/en14082087 ◽

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.

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Optimization of Capacities of Wind and Solar Power Plants in the Interstate Power Grid in North-East Asia Taking Into Account the Intermittence of Their Power Output

E3S Web of Conferences ◽

10.1051/e3sconf/202020904005 ◽

2020 ◽

Vol 209 ◽

pp. 04005

Author(s):

Leonid N. Trofimov ◽

Ivan L. Trofimov

Keyword(s):

Power Output ◽

Power Plants ◽

Solar Power ◽

Power Grid ◽

Northeast Asia ◽

Operating Modes ◽

North East ◽

Solar Power Plants ◽

Series Of Experiments ◽

Fossil Fuel Power Plants

The paper considers the problems of optimization of wind and solar power plants (WPP and SPP) expansion and it operating modes in the prospective interstate power grid (ISPG) in Northeast Asia, taking into account the intermittence of their power output. A series of experiments with variations in the profiles of WPP and SPP in the model nodes were carried out. Also authors carried out some additional experiments with the increase in fuel costs for fossil fuel power plants due to environmental restrictions. As a result, an assessment of the character of the changes in the solution of the model for new installed capacities and their costs, depending on the variations for the profiles of the contributions generation of WPP and SPP to cover daily electrical load graphs, is obtained.

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Pengaruh Sudut B dan W pada PLTS di PT Indonesia Power

Jurnal METTEK ◽

10.24843/mettek.2020.v06.i01.p08 ◽

2020 ◽

Vol 6 (1) ◽

pp. 62

Author(s):

Rinaldo Siahaan ◽

IGB Wijaya Kusuma ◽

IW Bandem Adnyana

Keyword(s):

Output Power ◽

Alternative Energy ◽

Power Plants ◽

Solar Power ◽

Slope Angle ◽

Electricity Consumption ◽

Production Costs ◽

Solar Panels ◽

Reduce Electricity Consumption ◽

Solar Power Plants

Energi surya merupakan energi terbarukan yang jumlahnya tidak terbatas sehingga sangat berpotensi dimanfaatkan sebagai sumber energi alternatif yang sangat ramah lingkungan. Salah satu pembangkit energi listrik tenaga surya ada di PT Indonesia Power Unit Bisnis Pembangkitan Bali tepatnya di gedung A dan telah dilakukan penelitian pada bulan November sampai bulan Desember dari pukul 08.00 sampai 16.00. Penelitian ini bertujuan untuk mengetahui sudut kemiringan panel surya (?) dan sudut jam (?) yang tepat sehingga pembangkit listrik tenaga surya menghasilkan efisiensi dan energi yang optimum yang mana akan mengurangi pemakaian energi listrik dan dengan biaya produksi yang lebih murah. Hasil penelitian ini menunjukkan bahwa sudut jam (?) panel surya mempengaruhi intensitas dan daya output panel surya dicapai lebih cepat 1 jam jika sudut (?) bernilai -15° dan sebaliknya. Dan hasil penelitian ini juga menunjukkan sudut kemiringan (?) panel surya yang paling tepat dibandingkan dengan yang terpasang saat ini adalah 15° menghadap selatan dengan peningkatan intensitas yang diterima panel surya 60,60%, peningkatan daya output 81,80% dan peningkatan efisiensi 13,38%. Solar energy is an unlimited amount of renewable energy that has the potential to be used as an alternative energy source that is very environmentally friendly. One of the solar power plants in PT Indonesia Power Generation Business Unit Bali precisely in building A and has been conducted research in November to December from 08.00 am to 16.00 pm. This study aims to determine the slope angle of solar panels (?) and clock angle (?) that are right so that solar power plants produce optimum efficiency and energy which will reduce electricity consumption and with lower production costs. The results of this study indicate that the clock angle (?) of solar panels affects the intensity and output power of solar panels achieved 1 hour faster if the angle (?) is -15 ° and vice versa. And the results of this study also show the most appropriate slope angle (?) of solar panels compared to the one currently installed is 15° south with an increase in intensity received by solar panels 60,60%, increase in output power 81,80% and increase in efficiency 13,38 %

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