Operation &amp; maintenance – The key for reliable performance in a CPV power plant

Wüllner, J.; Steiner, Marc; Wiesenfarth, Maike; Bett, Andreas W.

doi:10.1063/1.5053499

Cited by 4 publications

(5 citation statements)

References 5 publications

(9 reference statements)

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“…The qualification standard IEC 62108 so far gives good indication that systems perform well in the field if they have received the certification. 8 Solar Systems, 255 Soitec, 12,18,256 Semprius, 218 Suncore, 10 and ISFOC from the plants in Puertollano 8 and Daido Steel 67 have shown performance data from 2 to 8 yr with no degradation observed. FIG.…”

Section: E Long Term Stability-durabilitymentioning

confidence: 98%

“…planned CPV power plant at a specific site is essential to determine the economics of a plant. 18,246 Individual performance models based on field data combined with meteorological data from a specific site have been proposed in Ref. 247 for the Amonix module and in Ref.…”

Section: Prediction Of the Energy Yield And Assessment Of Plant Pementioning

confidence: 99%

“…shares and is used in the large installations that were installed recently (e.g., Golmud 16 and Touwsrivier 17,18 ).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Challenges in the design of concentrator photovoltaic (CPV) modules to achieve highest efficiencies

Wiesenfarth

Antón

Bett

2018

Applied Physics Reviews

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Concentrator photovoltaics (CPV) is a special high efficiency system technology in the world of PV-technologies. The idea of CPV is to use optical light concentrators to increase the incident power on solar cells. The solar cell area is comparatively tiny, thus saving expensive semiconductor materials and allowing the use of more sophisticated and more costly multi-junction solar cells. The highest CPV module efficiency achieved is 38.9%. This CPV module uses four-junction III-Vbased solar cells. Moreover, mini-modules have already achieved an efficiency of 43.4%. The interaction between optics, cells, and layout of the module and tracker determines the overall field performance. Today, some utility scale CPV plants are installed. The CPV technology allows for many technical solutions for system designs and for optimizing performance while maintaining the economics. This paper will review the achievements and discuss the challenges for the CPV module technology and its components. We discuss the different components and the most important effects regarding the module design. Furthermore, we present the module designs that have shown the highest efficiencies.

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Section: E Long Term Stability-durabilitymentioning

confidence: 98%

Section: Prediction Of the Energy Yield And Assessment Of Plant Pementioning

confidence: 99%

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Challenges in the design of concentrator photovoltaic (CPV) modules to achieve highest efficiencies

Wiesenfarth

Antón

Bett

2018

Applied Physics Reviews

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“…• Multi-junction solar cells have been used for many years in terrestrial and space applications (satellites) demonstrating reliable performance at high concentration with very low degradation rates and mean time to failure higher than 30 years. [45][46][47] • The optical layer is made of optical silicone or solar-grade PMMA, materials that have also been qualified for photovoltaic applications, enduring extended exposure to UV radiation, humidity, and high ambient temperature. [48][49][50] The lens clusters are manufactured by injection molding, a low-cost industrial process with high throughput and good repeatability.…”

Section: Roadmap To Industrial Productionmentioning

confidence: 99%

Industrialization of hybrid Si/III–V and translucent planar micro‐tracking modules

Nardin

Domínguez

Aguilar

et al. 2020

Progress in Photovoltaics

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A tracking-integrated hybrid micro-concentrator module is presented that can harvest direct, diffuse, and albedo irradiance components. It uses biconvex 180× lens arrays to concentrate direct light on high-efficiency III-V solar cells (29% module efficiency has been demonstrated outdoors on direct sunlight at Concentrator Standard Test Conditions) and a planar micro-tracking mechanism to allow installation in static frames. Two architectures have been developed to harvest diffuse irradiance: (1) a hybrid architecture where the backplane is covered with monofacial or bifacial Si cells; (2) a translucent architecture where diffuse light is transmitted through the module for dual-land-use applications, such as agrivoltaics. Simulations show that the hybrid architecture provides an excess of yearly energy production compared to 20% efficiency flat-plate photovoltaic (PV) module in all locations studied, including those with a low direct normal irradiance (DNI) content, and up to 38% advantage in high-DNI locations. The use of bifacial heterojunction and interdigitated back-contact Si cells has been explored for the glass-Si-glass backplane laminate to harvest albedo light. Bifacial gains modeled can boost energy yield by about 30% in the best scenario. We discuss the perspectives of the translucent modules for dual-land-use applications as well, such as integration in greenhouses for agriculture-integrated PV (agrivoltaics). This architecture can provide up to 47% excess electricity compared to a spaced reference Si array that transmits the same amount of solar

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“…However, as CSP only accounts for about 1.1% of global installed solar power capacity, and CPV being less than 0.1%, the focus of this study is set on conventional PV. [18][19][20] The physics of dust deposition and adhesion are complex due to the many influencing factors, ranging from weather, site, and system specifications to surface…”

Section: Introductionmentioning

confidence: 99%

Techno-Economic Assessment of Soiling Losses and Mitigation Strategies for Solar Power Generation

Ilse

Micheli

Figgis

et al. 2019

Joule

278

123

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Soiling consists of the deposition of contaminants onto photovoltaic (PV) modules or mirrors and tubes of concentrated solar power systems (CSPs). It often results in a drastic reduction of power generation, which potentially renders an installation economically unviable and therefore must be mitigated. On the other hand, the corresponding costs for cleaning can significantly increase the price of energy generated. In this work, the importance of soiling is assessed for the global PV and CSP key markets. Even in optimized cleaning scenarios, soiling reduces the current global solar power production by at least 3%-4%, with at least 3-5 billion V annual revenue losses, which could rise to 4%-7%, and more than 4-7 billion V losses, in 2023. Therefore, taking into account the underlying physics of natural soiling processes and the regional cleaning costs, a techno-economic assessment of current and proposed soiling mitigation strategies such as innovative coating materials is presented. Accordingly, the research and development needs and challenges in addressing soiling are discussed.

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Operation & maintenance – The key for reliable performance in a CPV power plant

Cited by 4 publications

References 5 publications

Challenges in the design of concentrator photovoltaic (CPV) modules to achieve highest efficiencies

Challenges in the design of concentrator photovoltaic (CPV) modules to achieve highest efficiencies

Industrialization of hybrid Si/III–V and translucent planar micro‐tracking modules

Techno-Economic Assessment of Soiling Losses and Mitigation Strategies for Solar Power Generation

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