Performance analysis and modeling of the world's largest CPV power plant

Liu, Mingguo; Gordon, Robert L.; Plesniak, Adam; Bagienski, Will; Garboushian, Vahan

doi:10.1109/pvsc.2013.6744482

Cited by 3 publications

(4 citation statements)

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“…The temperature coefficient of lens B and C are very close to each other and twice as high as that of lens A. The optimum temperature of lens B and C is very close to the average temperature in most sunny areas and just several degrees higher than the average temperature for the site, ~13 o C [3]. Lens A has a very high optimum temperature, 31 o C, which is about 18 o C higher than the average temperature of the site.…”

Section: Comparisons Of Three Pmma Lens Vendorsmentioning

confidence: 65%

Field performance analysis of different Fresnel lenses in Amonix CPV systems

Liu¹,

Bagienski²,

Gordon³

et al. 2014

AIP Conference Proceedings

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Abstract. PMMA Fresnel lenses from three vendors were compared using Amonix CPV systems in the same power plant, the 30MW Cogentrix CPV plant in Alamosa, CO. Two years worth of performance data on each lens has been collected and analyzed. The analysis shows the energy differences generated in two years by the three lenses is larger than expected. It was found that one of the three lenses exhibited a weaker temperature dependence than the other two. In addition, Silicone-on-glass (SOG) Fresnel lens performance was compared with PMMA lens performance on the same Amonix MegaModule on a system installed in Pomona, CA.

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Section: Comparisons Of Three Pmma Lens Vendorsmentioning

confidence: 65%

Field performance analysis of different Fresnel lenses in Amonix CPV systems

Liu¹,

Bagienski²,

Gordon³

et al. 2014

AIP Conference Proceedings

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“…To predict the power plant performance with high accuracy, it is essential to know the ambient conditions with the best precision. Therefore, since 2011 Soitec Solar has measured ambient conditions on a demo system installed nearby at Aquila-Game-Farm [2], long before construction on the final site started. This demo system provided an excellent database for the prediction of the plant performance.…”

Section: Power Plant Energy Productionmentioning

confidence: 99%

“…By the end of 2017, 387 MW of concentrator photovoltaic (CPV) systems were installed globally (updated from [1]). Besides plants from Amonix in the US [2] and Suncore in China [3], one of the largest CPV power plants in operation is the 44.19 MWp Touwsrivier power plant CPV 1. It was installed by the company Soitec Solar and began commercial operation in 2014.…”

Section: Introductionmentioning

confidence: 99%

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

Wüllner¹,

Steiner²,

Wiesenfarth³

et al. 2018

AIP Conference Proceedings

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The 44.19 MW p concentrator photovoltaic (CPV) power plant CPV 1 in Touwsrivier, South Africa is three years in operation. Lessons learnt for optimizing the power production are presented. The plant configuration is described and the key steps for reliable and efficient operation and maintenance are discussed. By introducing structured operation and maintenance procedures, the produced energy of the plant could be significantly increased. Without these new maintenance procedures the power plant output was less than originally predicted. Eventually, after introducing the proper maintenance concept in July 2017 for the first time, the total produced energy cumulated over a 12 month period was above the predicted modelled energy. This proves the importance to develop and apply site specific structured operation and maintenance procedures.

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“…The IEC 62108-certified lens-based systems with a capacity of 600 kW p showed no significant degradation. 7,8 The largest utility scale CPV installations so far-all based on multi-junction solar cells-were installed in Golmud, China, 138 MW p (58 MW p in 2012 and 79.8 MW p in 2013), [9][10][11] in Touwsrivier, South Africa, 44.19 MW p (2014), 12 in Alamosa, USA, 35.3 MW p (2012), 13 and in Delingha City, China, 12 MW (2016). 11 Another key innovation for CPV was the development of the technology for silicone-on-glass (SoG) Fresnel lenses.…”

Section: Introductionmentioning

confidence: 99%

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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Performance analysis and modeling of the world's largest CPV power plant

Cited by 3 publications

References 1 publication

Field performance analysis of different Fresnel lenses in Amonix CPV systems

Field performance analysis of different Fresnel lenses in Amonix CPV systems

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

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

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