Comparison of two calculation methods for designing the solar electric power system for small islands

Romana, Angga; Setiawan, Eko Adhi; Joyonegoro, Kurnianto

doi:10.1051/e3sconf/20186702052

Cited by 5 publications

(6 citation statements)

References 5 publications

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“…Previous study results revealed that there should be a high energy balance between battery size and load size to achieve a reliable standalone PV system for 3-4 days of autonomy [12][13][14]. Our methodology agrees with this, and also reveals that, through a complete energy balance between PV size, battery size, and load size, a standalone PV system can reliably sustain daily energy demand, without long days of autonomy.…”

Section: Discussionsupporting

confidence: 86%

“…The energy balance between PV array size and load size cannot be ascertained because it was not discussed in the reference study. Study [12] as well uses a larger battery capacity, which was 524% of load capacity, to achieve a 4-day autonomy. The energy balance between PV array and load power was also not revealed, but the battery capacity indicates a sufficient energy balance between battery size and load size.…”

Section: Comparative Analysis With Previous Published Papersmentioning

confidence: 99%

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Design methodology and implementation of stand-alone solar photovoltaic power system for daily energy consumption of 9.16 kWh

Dare,

Wemimo,

Emmanuel

et al. 2023

Eng. Res. Express

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This stand-alone solar photovoltaic power system was designed to power a daily energy consumption of 9.16kWh reliably, by means of photovoltaic only. The design involves different components whose capacities depend on 9.16kWh daily energy consumption and 1-day autonomy, including several factors that determine the choice of selection. After implementation, the system was put to the test for two days to ascertain the design validity and check if it would be able to sustain the daily load demand for 24 hours without failure. The results reveal that the design methodology employed for the stand-alone system in this study is accurate and reliable because the system was able to power the load interminably for 34 hours, with a resulting 0.6% DoD at the end of the test. This was due to the complete energy balance that the design methodology offers. Day 1 shows that the overall PV array power was 208% higher than the daytime load power and 61.2% higher than the overall daily load power. While Day-2 shows the overall PV array power to be 130% higher than the daytime load power and 56.3% higher than the overall daily load power, The energy balance between PV array, battery, and load size was completely and sufficiently achieved on both days, as the highest depth of discharge recorded during the test was 48.7%. The study reveals that through a complete energy balance between PV, battery, and load size, a standalone PV system can reliably sustain daily energy demand. It aims to design a stand-alone PV system capable of reliably sustaining daily energy demand without the need for long days of autonomy, so as to help prevent failures in solar PV projects that come as a result of inappropriate sizing, planning, and a lack of technical know-how.

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Section: Discussionsupporting

confidence: 86%

Section: Comparative Analysis With Previous Published Papersmentioning

confidence: 99%

Design methodology and implementation of stand-alone solar photovoltaic power system for daily energy consumption of 9.16 kWh

Dare,

Wemimo,

Emmanuel

et al. 2023

Eng. Res. Express

View full text Add to dashboard Cite

show abstract

“…He factored in losses of system in his calculations and designed the charger with a PWM charge controller rather than an MPPT charge controller. photovoltaic solar system kind (off-grid) systems are more compatible with sites that choose consumer opts not to be supplied back the energy that is produced at this end and the electricity has not been done yet [19].…”

Section: Related Workmentioning

confidence: 99%

“…The economic benefit has to be justified in order to convince the Al-Rafidain Engineering Journal (AREJ) Vol.28, No.1, March2023, pp. [14][15][16][17][18][19][20][21][22][23] consumer to make the initial investment. A normal consumer may not have the technical and commercial knowledge to install and operate the solar equipment.…”

Section: Introductionmentioning

confidence: 99%

Off-Grid Photovoltaic System for a Villa at AVRO City in Duhok

Abdullah¹,

Ameen²

2023

(AREJ)

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The off-grid solar photovoltaic system is one of the promising technologies for generating friendly electricity. Duhok city suffers from energy shortages in that electricity comes from local generators to support national grid. The aim of the research is to eliminate local generators due to their high costs and noise levels. A photovoltaic (PV) solar system type (off-grid) was proposed for one villa in AVRO city Duhok. A calculation has been done to select size of the system and A PV Syst software was adopted to investigate the design of the proposed system and additionally examined the economic analysis as well as the net profit. The proposed system is used with an average electricity demand of 12.9 kW/day. A typical 3.3 kW PV system was determined to be able to meet the daily power requirements of an entire villa with 8 panels: two in series and four in parallel where each panel has a rating of 415W. The system includes 8 batteries of 12 V,200Ah, and a 5-kW inverter with MPPT tracker. The result shows that yearly average of the energy requirement of villa is 4728.9 kWh and energy available through Solar's panel is 5999 kWh/year.

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“…Through this regulation, the government hopes to motivate and encourage the community to install solar power plants [5], [7], [8]. The high potential of solar energy in Indonesia, as well as government support and regulation, make solar energy a viable option for meeting future electricity needs [8], [9].…”

Section: Introductionmentioning

confidence: 99%

Solar power plant on the rooftop of the Diponegoro University Rectorate: a technical and economic study

2023

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Diponegoro University's Rectorate building uses electricity from the National Electricity Company with a S2 social subscription type of 105 kVA. The designed solar power plant has a capacity of 25 kW, or 25% of the installed electrical capacity. This research aims to compare the solar panels and inverter configurations that will be used in solar power plants. Moreover, this study aims to find out which configuration will provide the best results and the biggest savings. Technical analysis is carried out with the photovoltaic system (PVSyst) software to calculate the energy produced by solar panels, inverter losses, and other results. On the other hand, economic analysis is carried out with RetScreen software to calculate net present value (NPV), benefit cost ratio (BCR), and payback period (PP). Based on the PVSyst simulation results, the estimated energy production for each variant is 39,684 kWh; 39,633 kWh; 39,507 kWh; and 39,446 kWh. The first variant has the biggest performance ratio value of 84.1%. Based on the Retscreen calculation result, the third variant has an NPV value of $22,698, a BCR value of 2, and a PP of 8.7 years, which has the best result and the highest advantages.

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Comparison of two calculation methods for designing the solar electric power system for small islands

Cited by 5 publications

References 5 publications

Design methodology and implementation of stand-alone solar photovoltaic power system for daily energy consumption of 9.16 kWh

Design methodology and implementation of stand-alone solar photovoltaic power system for daily energy consumption of 9.16 kWh

Off-Grid Photovoltaic System for a Villa at AVRO City in Duhok

Solar power plant on the rooftop of the Diponegoro University Rectorate: a technical and economic study

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