Model for estimating the energy yield of a high concentrator photovoltaic system

Férnández, Eduardo F.; Pérez‐Higueras, P.; Almonacid, Florencia; Ruiz‐Arias, José A.; Rodrigo, Pedro M.; Fernández, Juan Ignacio Pulido; Luque-Heredia, I.

doi:10.1016/j.energy.2015.04.095

Cited by 31 publications

(9 citation statements)

References 52 publications

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“…When further comparing the performance of the HCPV systems in the present investigation to the previously reported PV power plants with different techniques in Table 1, the present HCPV system realizes an annually system efficiency (η) of 18.9% (using the measured DNI intensity as the reference), which values are comparable to the previous HCPV power plant reported in [16]. The annual averaged performance ratio of the present HCPV system has been calculated to be 79.7%, which value is lower than the HCPV system reported in [16]. The high system efficiency of the HCPV system is mainly because of the high conversion efficiency of the multi-junction solar cell chip (39%) as compared to the conventional crystalline silicon solar cell (<20%).…”

Section: Resultssupporting

confidence: 76%

“…Nevertheless, due to a lack of information on the AOD data for the local area, the influence from PW to the performance of the HCPV system cannot be quantified for the present case. The present investigation also shows that the HCPV module efficiency linearly reduces with an increasing air mass when AM > 2, while the influence of air mass can be considered negligible when AM < 2, which is in agreement with the previous reports [16,31].…”

Section: Influence On Energy Conversion By Environmental Parameterssupporting

confidence: 81%

“…In contrast, the PW is more likely to be associated with the lower performance ratio observed for the wet season. Since water vapor possesses absorption bands in the visible and near infrared parts of the solar spectrum, the increased water vapor during cloudy days may change the distribution of light wavelength of the irradiant solar spectrum [16,17]. This will further cause the mismatches in the photocurrent generated in different junctions of the solar cell and reduces the conversion efficiency of the solar cell.…”

Section: Influence On Energy Conversion By Environmental Parametersmentioning

confidence: 99%

“…The output power of the HCPV module (P mod ) is expected to be mainly influenced by the intensity of DNI, temperature of the solar cell (T cell ) and spatial distribution of the DNI (S b ), according to ref [16], which has been described as P mod = (P*/DNI*)DNI[1-δ(T cell -T cell *]S b , where P*, DNI* and T cell * are the maximum power, direct normal irradiance and cell temperature at reference conditions, while δ is the cell temperature coefficient. The spatial distribution of DNI may also influence the performance of the present HCPV system.…”

Section: Influence On Energy Conversion By Environmental Parametersmentioning

confidence: 99%

“…Apart from the intensity of DNI, the distribution of the DNI can be also affected by the atmospheric conditions such as air density, moisture and aerosols [14,15]. The changes in the distribution of DNI are expected to results in mismatches in the photocurrent generated in the different junctions of the solar cell and reduces the performance [16,17]. Another parameter that is considered to largely influence the performance of HCPV systems is the environmental temperature, since an increase in temperature reduces the conversion efficiency of solar cells [18,19].…”

Section: Introductionmentioning

confidence: 99%

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Performance Analysis of a Grid-connected High Concentrating Photovoltaic System under Practical Operation Conditions

Chen

et al. 2016

Energies

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High concentrating photovoltaic (HCPV) is a promising technique for the practical commercial utilization of solar energy. However, the performance of a HCPV system is significantly influenced by environmental parameters such as solar direct normal irradiance (DNI) level and environmental temperature. This paper analyzes the performance of a 9 kW p grid-connected HCPV system in Kunming (Yunnan, China), during practical field operations over an entire year, and discusses how the environmental parameters influence the performance from both the energy conversion and power inversion perspective. Large variations in the performance of the HCPV system have been observed for different months, due to the respective changes in the environmental parameters. The DNI level has been found to be a dominant parameter that mainly determines the amount of energy production as well as the performance ratio of the HCPV system. The environmental temperature and wind velocity have less influence on the system performance ratio than expected. Based on the performance of the present HCPV system, a quantified correlation between the output power and the direct normal irradiance has been derived, which provides guidelines for both the cogent application and the modeling of HCPV techniques for grid-connected power generation.

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Section: Resultssupporting

confidence: 76%

Section: Influence On Energy Conversion By Environmental Parameterssupporting

confidence: 81%

Section: Influence On Energy Conversion By Environmental Parametersmentioning

confidence: 99%

Section: Influence On Energy Conversion By Environmental Parametersmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Performance Analysis of a Grid-connected High Concentrating Photovoltaic System under Practical Operation Conditions

Chen

et al. 2016

Energies

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High-Concentrator Photovoltaic Power Plants: Energy Balance and Case Studies

Pérez‐Higueras

Muñoz-Rodríguez

Adame-Sánchez

et al. 2015

High Concentrator Photovoltaics

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High-concentrator photovoltaic (HCPV) power plants are inherently different from conventional photovoltaic (PV) power sources due to the use of concentrator modules and two-axis solar trackers. HCPV technology is a relatively new energy source; therefore, there is limited experience in its application in power plants. Bearing this in mind, this chapter aims to provide information about the special features and performance of HCPV power plants under real operating conditions. The analysis of current concentrator modules and solar trackers is addressed to achieve a better understanding of the main characteristics of this kind of systems. In addition, different methods for estimating the energy yield of an HCPV system or power plant are discussed. This is a crucial task to analyse the potential of such emerging technology. Finally, several HCPV power plants and relevant data concerning their energy yield and performance ratio (PR) are described and commented.

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