Potential of floating photovoltaic plant in a tropical reservoir in Brazil

Rodrigues, Ítalo Sampaio; Ramalho, Geraldo Luis Bezerra

doi:10.1080/09640568.2020.1719824

Cited by 26 publications

(8 citation statements)

References 59 publications

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“…A redução de evaporação é um efeito combinado do sombreamento, da redução da radiação solar e de efeitos aerodinâmicos na superfície do reservatório (Rodrigues;Ramalho;Medeiros, 2020). O uso de fotovoltaicas flutuantes reduz a evaporação em reservatórios pelo sombreamento proporcionado pelas ilhas fotovoltaicas, que impedem a incidência direta da luz solar, que é o principal mecanismo deflagrador da evaporação.…”

Section: Geração De Energia E Emissões De Geeunclassified

Sistemas Fotovoltaicos Flutuantes: uma solução energética sustentável para a Amazônia?

Gama Júnior,

Waichman

2024

Rev. DELOS

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Este estudo avalia a viabilidade de sistemas fotovoltaicos flutuantes (FVFs) em reservatórios de Usinas Hidrelétricas (UHEs) na Amazônia como uma solução para expandir a capacidade energética do Brasil de maneira sustentável. A metodologia incluiu a análise de dados de irradiação solar e a simulação de cobertura de reservatórios para calcular a geração potencial de energia e a redução de emissões de gases de efeito estufa. Os resultados indicam que os FVFs podem gerar energia significativa, superando as projeções de demanda futura e contribuindo para a redução das emissões de carbono ao substituir geração termoelétrica. A análise de impacto ambiental utilizando a Matriz Rápida de Impactos Ambientais (RIAM) mostrou que os FVFs têm impactos ambientais menores comparados à expansão de novas hidrelétricas e termelétricas. A conclusão destaca que os FVFs, ao operarem em complementaridade com as UHEs existentes, podem melhorar a eficiência energética das hidrelétricas e oferecer uma estratégia eficaz para atender à crescente demanda por energia no Brasil de forma sustentável, alinhando desenvolvimento energético com conservação ambiental.

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Section: Geração De Energia E Emissões De Geeunclassified

Sistemas Fotovoltaicos Flutuantes: uma solução energética sustentável para a Amazônia?

Gama Júnior,

Waichman

2024

Rev. DELOS

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“…The results obtained agree with the literature. Choi et al [93] showed that the module temperature increases with humidity. A decrement of the air's RH is always desired as RH shortens module lifespan and has an impact on PV power output in a similar way to dust collection.…”

Section: Relative Humidity Impactmentioning

confidence: 99%

How cool is floating PV? A state-of-the-art review of floating PV's potential gain and computational fluid dynamics modeling to find its root cause

2023

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The noticeable rise in electricity demand, environmental concerns, and the intense land burden has led to installing PV systems on water bodies to create floating photovoltaic (FPV). Of all market niches, FPV is the one developing the fastest. Along with some of its well-documented merits comes a claim that FPV modules operate at a lower temperature than their ground-mounted counterparts (GPVs). This claim is essential due to the performance loss of PV modules at high operating temperatures. Some literature claims that FPVs are so well-cooled that they maintain around 10% higher efficiencies. However, this cooling is poorly quantified, and the root cause remains unclear in the industry. In this paper, an extensive review of all the latest published literature and white paper advertisements was analyzed. The gains in energy yield coming from different root causes range from 0.11% to 31.29%! This proves the point of lack of clarity of potential gain of FPV. The paper then analyses four possible explanations for this cooling effect and its root causes. The FPV performance parameters are isolated and systematically investigated through physics-based finite element modeling. The impacts of wind velocity, wind direction, water temperature, relative humidity, air temperature, proximity to water, tilt angle, and others are evaluated and explained. The outcomes dictate that FPV is cooled largely through wind convection. But the increase in efficiency is below the anticipated values, ranging from 0.5% to 3%.

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“…In addition, the intermittent operation of the equivalent FPV system to meet the energy demand reduces the pressure on the power turbines in the hydroelectric power plant by removing some or all of the electricity generation load [1]. FPV systems are seen as an alternative that addresses increasing energy demand and contributes to the generation capacity of the existing hydroelectric power plants where they are installed without requiring additional land costs [8], [9].…”

Section: Introductionmentioning

confidence: 99%

Investigating the Effect of Shading on the Capacity Factor of Floating Photovoltaic Systems

Ateş

Yılmaz

Gülgen

2022

Celal Bayar Üniversitesi Fen Bilimleri Dergisi

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In this study, remote sensing (RS) was used to determine the 20-year area and shoreline changes of Demirköprü Dam reservoir. Using a geographical information system (GIS) solar analysis tool, annual and monthly total global horizontal irradiance (GHI) values were calculated within the area of the reservoir’s shorelines based on 20-years of observations. The regional theoretical capacity factor (RTCF) proposed in this study was modelled using total annual GHI values. The water surface was divided into four regions using RTCFs 94.97%, 4.92%, 0.08%, and 0.02% of the total water surface area were classified as RTCF21, RTCF20, RTCF19, and RTCF18, respectively. The annual electrical energy potentials per unit for each RTCF were calculated. The novel method developed in this study for determining the optimum location of FPV SPPs to be installed on water surfaces reveals the importance of evaluating land topography and considering annual patterns of shading.

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Potential of floating photovoltaic plant in a tropical reservoir in Brazil

Cited by 26 publications

References 59 publications

Sistemas Fotovoltaicos Flutuantes: uma solução energética sustentável para a Amazônia?

Sistemas Fotovoltaicos Flutuantes: uma solução energética sustentável para a Amazônia?

How cool is floating PV? A state-of-the-art review of floating PV's potential gain and computational fluid dynamics modeling to find its root cause

Investigating the Effect of Shading on the Capacity Factor of Floating Photovoltaic Systems

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