Area and LCOE considerations in utility-scale, single-axis tracking PV power plant topology optimization

Veríssimo, Pedro Henrique Alves; Campos, Rafael Antunes; Guarnieri, Maurício Vivian; Veríssimo, João Paulo Alves; Nascimento, Lucas Rafael do; Rüther, Ricardo

doi:10.1016/j.solener.2020.09.070

Cited by 29 publications

(9 citation statements)

References 39 publications

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“…The proposed metric involves the relative use of the surface area combining the energy efficiency and the total efficiency of the PV plant, representing the occupation efficiency of the PV plant. These suggestions are important because the investor often seeks to maximize the energy production to increase revenue, but at the same time neglects the plant's productive capacity 55 …”

Section: Resultsmentioning

confidence: 99%

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Management of operation and maintenance practices in photovoltaic plants: Key performance indicators

Rediske

Michels

Siluk

et al. 2022

Intl J of Energy Research

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Summary The number of large photovoltaic (PV) power plants is increasing around the world. Energy sale usually follows demand contracts with clearly defined obligations, subject to nonsupply penalties. Not supplying the amount of contracted energy is a critical issue to PV plant performance, which can be mitigated with operation and maintenance (O&M) good practices. Furthermore, as the PV plant ages, O&M practices become increasingly important to improve or maintain a good performance. Performance assessment is a complex process that involves several parameters to collect, indicators to measure, and action plans to solve the identified problems. The objective of this study is to identify relevant factors in performance evaluation of O&M practices of medium to large PV plants. Through a systematic literature review and Delphi method with specialists, 33 key performance indicators (KPIs) were determined and classified in operation or maintenance categories, and further in technical or economic subcategories. This paper also organized a set of parameters that PV plant managers should collect to determine the KPIs and evaluate the O&M practices performance. Efficient management of O&M practices results in an indirect increase in generation capacity, as well as ensuring compliance with electricity supply contracts.

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Section: Resultsmentioning

confidence: 99%

“…These suggestions are important because the investor often seeks to maximize the energy production to increase revenue, but at the same time neglects the plant's productive capacity. 55…”

Section: Technical Kpismentioning

confidence: 99%

Management of operation and maintenance practices in photovoltaic plants: Key performance indicators

Rediske

Michels

Siluk

et al. 2022

Intl J of Energy Research

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“…Case studies of investigating LCOE for three 50MW power plants, PV, CSP and hybrid PV-CSP in the northern Chile is performed to recognize the scope of abundant solar resource in the near future [51]. A new metric for evaluation based on the output efficiency of PV generation in Brazil, identified as annual Yield factor (Y f ) and other associated parameters are optimized for the reduction of LCOE [52].…”

Section: ) Solar Photovoltaic Generationmentioning

confidence: 99%

A Comprehensive Survey on the Current Trends in Improvising the Renewable Energy Incorporated Global Power System Market

Saranyaa

Fathima

2023

IEEE Access

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Power generation all over the world is slowly being taken over by the renewable energy technologies to alleviate the energy crisis, as well as provide clean and green energy. Therefore, in the foreseeable future, the renewable energy technologies most likely may compete on par level with the conventional energy generation. The near future holds the rebalancing of the global power system market, which mandates, the interpretation of the upcoming and current trends revolving around the power market, pricing and the supply-demand balance with focus on the various renewable energy sources. Levelised Cost of Energy (LCOE) is the present global evaluator that ensures the fair valuation of the generation costs and the grid parity achievement for the various generating technologies. With the power market rebalancing, both regulated and deregulated configuration, have a requisite duty of maintaining the power generation and demand balance. Therefore, this paper does an extensive survey on the recent trends and methodologies in the levelised cost estimation, demand-supply balance with focus on the various renewable generating sources.

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“…Increasing the efficiency of crystalline silicon (c-Si) solar cells is an effective approach for reducing the levelized cost of electricity (LCOE). − Since the 1980s, passivated emitter and rear cell (PERC) structures have been widely used to lower the LCOE. − However, the conversion efficiency of PERC solar cells is stagnant, at approximately 25%. ,, As an alternative, carrier-selective passivating contact structures have been gaining attention for next-generation c-Si solar cells, as they collect carriers more effectively than p–n junctions. ,,, One of the most well-known carrier-selective passivating contact structures is fabricated by forming doped poly-Si − on top of ultrathin SiO x − followed by annealing. The poly-Si/SiO x structure shows excellent carrier selectivity and has been used as either a tunnel oxide passivating contact (TOPCon) ,, or a poly-Si on oxide (POLO). ,, Figure a shows the band diagram of c-Si solar cells with a poly-Si/SiO x structure for both electron and hole contacts.…”

Section: Introductionmentioning

confidence: 99%

Design Rule of Electron- and Hole-Selective Contacts for Polycrystalline Silicon-Based Passivating Contact Solar Cells

Mo,

Choi,

et al. 2023

ACS Appl. Mater. Interfaces

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A crystalline silicon (c-Si) solar cell with a polycrystalline silicon/SiO x (poly-Si/SiO x ) structure, incorporating both electron and hole contacts, is an attractive choice for achieving ideal carrier selectivity and serving as a fundamental component in high-efficiency perovskite/Si tandem and interdigitated back-contact solar cells. However, our understanding of the carrier transport mechanism of hole contacts remains limited owing to insufficient studies dedicated to its investigation. There is also a lack of comparative studies on the poly-Si/SiO x electron and hole contacts for ideal carrier-selective solar cells. Therefore, this study aims to address these knowledge gaps by exploring the relationship among microstructural evolution, dopant in-diffusion, and the resulting carrier transport mechanism in both the electron and hole contacts of poly-Si/SiO x solar cells. Electron (n+ poly-Si/SiO x /substrate)- and hole (p+ poly-Si/SiO x /substrate)-selective passivating contacts are subjected to thermal annealing. Changes in the passivation properties and carrier transport mechanisms of these contacts are investigated during thermal annealing at various temperatures. Notably, the results demonstrate that the passivation properties and carrier transport mechanisms are strongly influenced by the microstructural evolution of the poly-Si/SiO x layer stack and dopant in-diffusion. Furthermore, electron and hole contacts exhibit common behaviors regarding microstructural evolution and dopant in-diffusion. However, the hole contacts exhibit relatively inferior electrical properties overall, mainly because both the SiO x interface and the p+ poly-Si are found to be highly defective. Moreover, boron in the hole contacts diffuses deeper than phosphorus in the electron contacts, resulting in deteriorated carrier collection. The experimental results are also supported by device simulation. Based on these findings, design rules are suggested for both electron and hole contacts, such as using thicker SiO x and/or annealing the solar cell at a temperature not exceeding the critical annealing temperature of the hole contacts.

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Area and LCOE considerations in utility-scale, single-axis tracking PV power plant topology optimization

Cited by 29 publications

References 39 publications

Management of operation and maintenance practices in photovoltaic plants: Key performance indicators

Management of operation and maintenance practices in photovoltaic plants: Key performance indicators

A Comprehensive Survey on the Current Trends in Improvising the Renewable Energy Incorporated Global Power System Market

Design Rule of Electron- and Hole-Selective Contacts for Polycrystalline Silicon-Based Passivating Contact Solar Cells

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