Temperature-dependent energy gain of bifacial PV farms: A global perspective

Patel, M. Tahir; Vijayan, Ramachandran A.; Asadpour, Reza; Varadharajaperumal, Muthubalan; Khan, M. Ryyan; Alam, Muhammad Ashraful

doi:10.1016/j.apenergy.2020.115405

Cited by 42 publications

(20 citation statements)

References 41 publications

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“…In all cases, the systems were assumed to be oriented towards the south and with a 35 • inclination, similar to the experiments, and because this is the tilt angle to achieve the maximum annual energy yield. Figure 8 reports the relative bifacial gain, defined as BG = 100• EY bif − EY mono EY mono (4) where EY stands for energy yield, according to the temperature profile of Catania in 2017. Two cases were considered: the case of the three-cell minimodule installed at an average height of 55 cm, as in Figure 1 and for the experiments here reported (blue curve), and the case of a string of 6 modules of 72 cells (6 cells high and 12 cells wide) of 1 m × 2 m arranged in a 2 × 3 configuration (2 modules high and 3 modules wide), installed at an average height of 2 m (red curve).…”

Section: Model Extrapolations To Annual Pv Energy Yield and Effect Of...mentioning

confidence: 99%

“…Generally, the BF ranges between 70% and 100% depending on the technology (PERC, PERT, HJT, etc., see [2,3]). Among the HJT cells, the n-type ones are the most promising for BPV, due to their high short-circuit current (I sc ), open-circuit voltage (V oc ), and BF, and for their low temperature coefficient [4] compared with the most common p-type cells [5].…”

Section: Introductionmentioning

confidence: 99%

“…Similar results were also reported by Zhang et al [13], who refined the previous studies by considering also the case of different ground albedos. Patel et al [4] underlined the role of the IR sub-bandgap absorption, which increases the PV module temperature under bifacial operation. These works show the importance of using technologies with power temperature coefficients low in absolute value, such as in the case of Si HJT.…”

Section: Introductionmentioning

confidence: 99%

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The Effects of Module Temperature on the Energy Yield of Bifacial Photovoltaics: Data and Model

Leonardi,

Corso,

Milazzo

et al. 2021

Energies

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Bifacial photovoltaics (BPVs) are emerging with large momentum as promising solutions to improve energy yield and cost of PV systems. To reach its full potential, an accurate understanding of the physical characteristics of BPV technology is required. For this reason, we collected experimental data to refine a physical model of BPV. In particular, we simultaneously measured the module temperature, short circuit current (Isc), open-circuit voltage (Voc), power at the maximum power point (Pmpp), and the energy yield of a bifacial and a monofacial minimodule. Such minimodules, realised with the same geometry, cell technology, and module lamination, were tested under the same clear sky outdoor conditions, from morning to afternoon, for three days. The bifacial system experimentally shows higher module temperatures under operation, about 10 °C on a daily average of about 40 °C. Nevertheless, its energy yield is about 15% larger than the monofacial one. We propose a physical quantitative model that fits the experimental data of module temperature, Isc, Voc, Pmpp, and energy yield. The model was then applied to predict the annual energy yield of PV module strings. The effect of different PV module temperature coefficients on the energy yield is also discussed.

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Section: Model Extrapolations To Annual Pv Energy Yield and Effect Of...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The Effects of Module Temperature on the Energy Yield of Bifacial Photovoltaics: Data and Model

Leonardi,

Corso,

Milazzo

et al. 2021

Energies

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“…The PV panel temperature mainly depends on the environmental conditions such as sky temperature, wind speed, module construction, technology-specific (monofacial or bifacial cells) and thermal coefficient of maximum power. Temperature dependence plays an important role in assessing site-specific energy gain outcomes around the world [17]. Therefore, proper location for installing the PV system should be carefully chosen [18].…”

Section: Factors Affecting Bifacial Pv Module Gainmentioning

confidence: 99%

An optimum location of on-grid bifacial based photovoltaic system in Iraq

Shakir

Yousif

Mahmood

2022

IJECE

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Bifacial photovoltaic (PV) module can gain 30% more energy compared to monofacial if a suitable location were chosen. Iraq (a Middle East country) has a variable irradiation level according to its geographic coordinates, thus, the performance of PV systems differs. This paper an array (17 series, 13 parallel) was chosen to produce 100 kWp for an on-grid PV system. It investigates the PV system in three cities in Iraq (Mosul, Baghdad, and Basrah). Effect of albedo factor, high and pitch of the bifacial module on energy yield have been studied using PVsyst (software). It has been found that the effect is less for a pitch greater than 6 m. The energy gained from bifacial and monofacial PV system module in these cities shows that Mosul is the most suitable for installing both PV systems followed by Baghdad and lastly Basrah. However, in Basrah, the bifacial gain is 12% higher in the energy than monofacial as irradiation there is higher than the other locations, especially for elevation above 1.5 m. Moreover, the cost of bifacial array is 7.23% higher than monofacial, but this additional cost is acceptable since the bifacial gain is about 11.3% higher energy compared to the monofacial.

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“…2) Bifacial solar cells accept light from the front and rear side and, hence, capture a higher portion of diffuse irradiance and ground reflected irradiance (albedo), thus increasing output [7]. This has motivated research in various directions for bifacial cells, ranging from mismatch loss estimation [8], single-axis tracking [9], [10], modeling [11] to field studies [12]. Furthermore, it has been shown that the spectral dependence of albedo also strongly influences the output [13]- [15].…”

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confidence: 99%

Simulation of Bifacial and Monofacial Silicon Solar Cell Short-Circuit Current Density Under Measured Spectro-Angular Solar Irradiance

Pal

Reinders

Saive

2020

IEEE J. Photovoltaics

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In this article, we simulated the performance of bifacial and monofacial silicon heterojunction solar cells under measured spectro-angular solar irradiance. We developed a new setup and procedure to measure spectro-angular irradiance over a wide range of orientations. Measurements were executed in Enschede, the Netherlands (52 • 23 N, 6 • 85 E). Using this measured multi-dimensional input irradiance along with SunSolve simulated external quantum efficiency for various cells, we determined the short-circuit current density of bifacial and monofacial silicon heterojunction solar cells. We conclude that monofacial cells perform marginally better than bifacial cells for front-side illumination (up to 3.0% more for direct sun) and bifacial cells perform significantly better than monofacial cells (higher output ranging from 20.1% to 68.1%), under diffuse irradiance. We compared our results with a well-monitored roof-top solar module setup and found good agreement for clear sky days (accuracy 1.1%-8.5%).

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Temperature-dependent energy gain of bifacial PV farms: A global perspective

Cited by 42 publications

References 41 publications

The Effects of Module Temperature on the Energy Yield of Bifacial Photovoltaics: Data and Model

The Effects of Module Temperature on the Energy Yield of Bifacial Photovoltaics: Data and Model

An optimum location of on-grid bifacial based photovoltaic system in Iraq

Simulation of Bifacial and Monofacial Silicon Solar Cell Short-Circuit Current Density Under Measured Spectro-Angular Solar Irradiance

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