Effect of partial shading conditions on off-grid solar PV/Hydrogen production in high solar energy index regions

Mert, Başak Doğru; Ekinci, Fırat; Demirdelen, Tuğçe

doi:10.1016/j.ijhydene.2019.09.011

Cited by 37 publications

(8 citation statements)

References 45 publications

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“…As an example, Fig. 3 demonstrates the effect of cathode material on hydrogen production (Mert et al 2019). Investigations revealed that while the Cu/NiMo cathode has the highest hydrogen production, the Cu cathode has the lowest.…”

Section: Alkaline Water Electrolyzer (Awe)mentioning

confidence: 99%

“…Based on this principle, the system Fig. 3 Hydrogen production from AWE at different cathode materials (Mert et al 2019) may have thermal storage to ensure continuous production at night. A previous study compared PV/H 2 and CSP/H 2 under the same conditions to investigate their system performances (Joshi et al 2011).…”

Section: Green Electricity Production Systemsmentioning

confidence: 99%

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A review of water electrolysis–based systems for hydrogen production using hybrid/solar/wind energy systems

Nasser

Megahed

Hassan

2022

Environ Sci Pollut Res

144

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Hydrogen energy, as clean and efficient energy, is considered significant support for the construction of a sustainable society in the face of global climate change and the looming energy revolution. Hydrogen is one of the most important chemical substances on earth and can be obtained through various techniques using renewable and nonrenewable energy sources. However, the necessity for a gradual transition to renewable energy sources significantly hampers efforts to identify and implement green hydrogen production paths. Therefore, this paper’s objective is to provide a technological review of the systems of hydrogen production from solar and wind energy utilizing several types of water electrolyzers. The current paper starts with a short brief about the different production techniques. A detailed comparison between water electrolyzer types and a complete illustration of hydrogen production techniques using solar and wind are presented with examples, after which an economic assessment of green hydrogen production by comparing the costs of the discussed renewable sources with other production methods. Finally, the challenges that face the mentioned production methods are illuminated in the current review.

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Section: Alkaline Water Electrolyzer (Awe)mentioning

confidence: 99%

Section: Green Electricity Production Systemsmentioning

confidence: 99%

A review of water electrolysis–based systems for hydrogen production using hybrid/solar/wind energy systems

Nasser

Megahed

Hassan

2022

Environ Sci Pollut Res

144

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“…Hydrogen can be generated from renewable sources, and it is environmentally safe fuel. Some of the recent proposed systems include combinations of solar PV / wind turbine/ battery /hydrogen systems [4].…”

Section: Introductionmentioning

confidence: 99%

Optimized Hybrid Renewable Energy System for a Baseload Plant

Reda¹,

Ragab²,

Sawy³

et al. 2022

Preprint

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The objective of this paper is to proof that intermittent renewable supply sources can be integrated to develop a reliable baseload plant, which can generate electricity at a competitive cost to the conventional generation. A methodology has been developed to optimize the design of a hybride plant, which is based on several technologies including; solar PV, wind, hydrogen generation/fuel cells, and batteries to serve as a renewable energy baseload plant. The methodology includes site selection to ensure maximum integration among the intermittent supply sources as well as optimized sizing of both generation and storage technologies. The objective function is for the least Levelized Cost of Energy (LCoE). The system reliability is judged using the Loss of Power Supply Probability (LoPSP) criterion. A MATLAB algorithm has been developed for the initial sizing of the system components, which searches for the optimum solution within the applicability domain. This is followed by HOMER software-based optimization technique for the plant operation. A case study for baseload hybrid plant of a capacity 200 MW is presented. The location of the plant is screened among several sites in Egypt to achieve the best optimum combination of both solar and wind generation considering; resource intensity, site conditions and constraints, as well as integration between solar PV and wind outputs. According to the selected site and according to the developed optimization methodology, the system has a combination of renewable generation/storage capacities of; 87.5% wind and 12.5% solar PV, and storage of 75% fuel cell and 25% battery. This injects energy to the grid with an energy mix of 89 % from direct renewable power sources (solar PV & wind), 8 % from the fuel cell, and 3 % from the battery. This energy mix ensures a steady output baseload of 200 MW throughout the year with zero LoPSP, at a LCoE of 8.61 ¢/kWh. Relaxing the LoPSP constraint to 2.5% resulted in 26.83% reduction in the LCoE to 6.8 ¢/kWh. According to this study, renewable energy generation can be used toward achieving 100% baseload power systems at competitive energy cost to the conventional generation.

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“…The performance of photovoltaic (PV) systems are negatively affected by a number of parameters such as irradiation, operating temperature, reflection, pollution, shading and so on [1,2]. Among these parameters, temperature and shading effect are the main factors [3][4][5]. Complete or partial shading of incoming sun rays is caused by the clouds, adjacent buildings, towers, trees, telephone and electricity poles.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Shading Effect on the Performance of a grid-connected PV Plant in Samsun/Turkey

Keskin¹,

Khalejan²,

Çikla³

2021

Politeknik Dergisi

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ÖZFotovoltaik (FV) sistemlerde, güç üretimi güneş panellerinin kısmi veya tamamen gölgelenmesinden önemli ölçüde etkilenir.Bu çalışmada, bir transformatör binasının neden olduğu gölgelemenin şebekeye bağlı bir güneş enerjisi santralindeki FV dizisinin performansı üzerindeki etkileri gerçek çalışma koşulları altında araştırılmıştır. Gölgeli ve gölgesiz dizinin performansları, 12 ay boyunca açık ve güneşli günlerde dış iklim koşullarında düzenli olarak gözlemlenmiştir. Performans verilerinin değerlendirilmesi sonucunda, santralin bir yıllık çalışmasının ardından, trafo binasına bağlı toplam güç kaybının gölgeli 30 kW FV dizisinde 307 kW (% 0,66) olduğu hesaplanmıştır. Fotovoltaik enerji sistemlerinin 30 yıla kadar kullanım ömrü olduğu düşünüldüğünde, gölgeleme etkisinin neden olduğu güç kaybının MW ölçeğinde güce ulaşacağı açıktır. Bu gözlem, bir FV enerji santrali tasarlarken operasyonel birimlerin önemini vurgulamaktadır.

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Effect of partial shading conditions on off-grid solar PV/Hydrogen production in high solar energy index regions

Cited by 37 publications

References 45 publications

A review of water electrolysis–based systems for hydrogen production using hybrid/solar/wind energy systems

A review of water electrolysis–based systems for hydrogen production using hybrid/solar/wind energy systems

Optimized Hybrid Renewable Energy System for a Baseload Plant

Investigation of the Shading Effect on the Performance of a grid-connected PV Plant in Samsun/Turkey

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