CPV Power Plants

Martinez, Maria Elisa Marciano; Sánchez, Daniel; Rubio, Fernando; Férnández, Eduardo F.; Almonacid, Florencia; Abela, Norman; Zech, Tobias; Gerstmaier, T.

doi:10.1002/9781118755655.ch08

Cited by 9 publications

(5 citation statements)

References 39 publications

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“…Typical CPV locations have a DNI/GNI ratio above 0.85. 215 With this concept of using the global irradiation, installation of CPV modules in areas with lower DNI/GNI (with GNI as the global normal irradiance) ratios becomes affordable. Yamada and Hirai showed in Ref.…”

Section: Utilizing the Diffuse Irradiationmentioning

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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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: Utilizing the Diffuse Irradiationmentioning

confidence: 99%

“…This can be explained by numerous mechanical parts. 215,254 In Gerstmaier et al, 12 failures of inverters are reported as the main cause for unavailability. Faster repairs are suggested to reduce failure time.…”

Section: Maintenance Incidence During Operation Of Cpv Plantsmentioning

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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“…Dispersion in manufacturing processes and temperature operation of optical devices (mirrors and secondary optics) could result in current deviations of up to 10% between modules. In fact, considering only temperature effects, spatial gradients of 30ºC have been reported inside a HCPV module [3] causing energy divergences of 10% due to losses in lenses, according to [4]. 2.…”

Section: Cpvmatch System Designmentioning

confidence: 99%

Design and analysis of performance of a DC power optimizer for HCPV systems within CPVMatch project

Alonso¹,

Pereda²,

Bilbao³

et al. 2018

AIP Conference Proceedings

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As most of PV systems, CPV systems are also affected by mismatching losses, particularly due to misalignment of optics and receivers. As a result, module level power electronics can help to increase their energy yield by making every CPV module deliver it maximum power at the output. Among the different alternatives, solutions based on DC power optimizers exhibit higher conversion efficiencies and lower costs than microinverters. However, while microinverters ensure optimal operation independently from the operating conditions, system design with DC power optimizers must be carefully examined to avoid potential underperformance. This paper describes not only the customized design and validation of a high-efficiency and economical DC power optimizer for HCPV systems, but also a comprehensive analysis of the whole system design to optimize its production under expected working conditions.

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“…Neither procedures based on the experience nor recorded data relating to the degradation of CPV systems have been developed yet. The only available information is based on theoretical aspects from the different elements of the CPV system, and the results published in the past by ISFOC about its experience during the first years of operation and maintenance [2], as well as the first results of degradation [3] obtained. Consequently, all these facts hamper the implementation of an optimized maintenance plan and an efficient provisioning of spare parts policy.…”

Section: Maintenance Of Cpv Plantsmentioning

confidence: 99%

Operation and maintenance results from ISFOC CPV plants

Gil¹,

Martinez²,

Rubia³

2017

AIP Conference Proceedings

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Abstract. The analysis of field operation and maintenance data collected during a period of over eight years, from CPV installations consisting of three different CPV technologies (including second generation of one of these technologies), has allowed us to get valuable information about the long-term degradation of the CPV systems. Through the study of the maintenance control ratio previously defined and by applying the root cause analysis methodology, the components responsible for the most unplanned interventions for each technology were identified. Focusing maintenance efforts on these components, a reduction of the unplanned interventions and the total cost of maintenance has been achieved over the years. Therefore, the deployment of an effective maintenance plan, identifying critical components, is essential to minimize the risk for investors and maximize the CPV power plants lifetime and energy output, increasing the availability of CPV installations, boosting market confidence in CPV systems.

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CPV Power Plants

Cited by 9 publications

References 39 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

Design and analysis of performance of a DC power optimizer for HCPV systems within CPVMatch project

Operation and maintenance results from ISFOC CPV plants

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