Study of energy improvement with the insertion of bifacial modules and solar trackers in photovoltaic installations in Brazil

Melo, Karen Barbosa de; Silva, Michelle Kitayama da; Silva, João Lucas de Souza; Costa, Tatiane Silva; Villalva, Marcelo Gradella

doi:10.1016/j.ref.2022.02.005

Cited by 17 publications

(13 citation statements)

References 32 publications

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“…To sum up, the bifacial PV system with a solar tracker has the highest gain with the monthly total gain ranging between 15.9% and 41.0%. Barbosa de Melo et al 29 reported a similar result, with monthly gains ranging from 19.39% to 27.39% for a location in Brazil. Figure 5 shows that the fixed tilted bifacial PV system outperformed the fixed tilted monofacial system in all months, with gain varied from about 10.7% in October and November to about 14.4% in June and annual average bifacial gain of 12%.…”

Section: Resultsmentioning

confidence: 65%

“…The influence of the rear surface has a significant impact on power generation, however, because of the movement caused by the trackers, the irradiance reaching the ground behind the modules in tracked systems is lower than the irradiance reaching the ground behind the modules in fixed systems. 29 The global horizontal irradiance for the location is 2112 kWhm 22 . The fixed bifacial system receives 16.84% (356 kWhm 22 ) of the global horizontal irradiance on the rear side, whereas the bifacial system with a solar tracker receives only 10.94% (273 kWhm 22 ).…”

Section: Comparative Analysis Of Energy Output From the Systemsmentioning

confidence: 99%

“…24 The solar trackers are in charge of keeping the surface of the PV modules nearly perpendicular to direct irradiance almost all of the time, allowing them to collect a greater amount of irradiance. 29 Single-axis tracking and dualaxis tracking are the two main categories of solar tracking systems. [30][31][32] According to Seme et al, 33 previous research and studies have shown that the tracker gain ranges between 22% and 56% in comparison to a fixed solar PV system.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Improving solar photovoltaic installation energy yield using bifacial modules and tracking systems: An analytical approach

Yakubu

Mensah

Quansah

et al. 2022

Advances in Mechanical Engineering

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In this paper, we present the results of a simulation of a 3 MWp photovoltaic plant in Nigeria using four case study scenarios: ground-mounted fixed inclined monofacial, and bifacial photovoltaic installation, as well as monofacial and bifacial photovoltaic installations with trackers. The bifacial gains, tracker gains, and bifacial-tracker gains were calculated for each configuration. The fixed ground-mounted inclined bifacial PV system gained 12% annual average bifacial gain over a fixed ground-mounted monofacial system, while the bifacial system with a solar tracker gained 8.9% over a monofacial system with a solar tracker. A monofacial PV system with a tracker over a fixed inclined monofacial system has a tracker gain of 16%, while a bifacial PV system with a tracker over a fixed inclined bifacial system has a tracker gain of 13.2%. The monofacial system with a solar tracker outperforms a fixed inclined bifacial system by about 4%. The sensitivity analysis performed to determine the effect of system parameters such as albedo and ground clearance height on bifacial PV systems reveals that the increase in specific energy production per kilowatt-hour per year is directly proportional to the albedo of the surface area on which the bifacial PV systems are installed, and adequate ground clearance height is required between the ground and the installed bifacial PV plants.

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Section: Resultsmentioning

confidence: 65%

Section: Comparative Analysis Of Energy Output From the Systemsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Improving solar photovoltaic installation energy yield using bifacial modules and tracking systems: An analytical approach

Yakubu

Mensah

Quansah

et al. 2022

Advances in Mechanical Engineering

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“…In seven locations around Brazil, Barbosa de Melo et al [33] computationally studied the results of a photovoltaic plant using mono-facial and bi-facial modules mounted on a fixed structure and solar trackers. According to the findings, depending on the weather and system setup, the bi-facial gain varied from 3.78% to 8.16%, and the tracker gain varied from 13.40% to 18.20%.…”

Section: Introductionmentioning

confidence: 99%

Thermal comparison of mono-facial and bi-facial photovoltaic cells considering the effect of TPT layer absorptivity

Radwan

Mahmoud

Olabi

et al. 2023

International Journal of Thermofluids

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“…The exponential growth in the installations of photovoltaic systems is the consequence of limited supply of fossil fuels, environmental concerns, scalability, and the continuous decrease in costs [3]. Bifacial PV technology has received increased interest from the PV industry, bifacial cells have been researched on since the 1980s, but the complex manufacturing process and high production costs made it difficult for industrial and commercial applications [4]. In recent times the price of bifacial modules is found to be very close when compared to the conventional monofacial counterparts.…”

Section: Introductionmentioning

confidence: 99%

Monofacial and Bifacial Photovoltaics Systems with Uniaxial Solar Tracking

Bhayat,

Vaithilingam,

Oruganti

et al. 2023

J. Phys.: Conf. Ser.

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The technology behind Bifacial Photovoltaic systems has existed for a long time but only recently gained popularity due to the increased surface area for the absorption of solar radiation by the rear-side of the bifacial Photovoltaic (PV) panel. The bifacial gain and output energy yield (kWh) is affected negatively by self-shading leading to non-uniformity in the absorbed irradiance. The purpose of this research is to simulate and investigate the effect of varying parameters including the elevation of a bifacial PV module from 0.5 m to 1.0 m with a step size of 0.1 m and its effect on the absorbed irradiance and subsequent output energy yield (kWh). Uniaxial solar tracking combined with varying the elevation is implemented by positioning the bifacial PV system in an East-West orientation with an azimuth angle of +90° (facing East); this follows the sun’s hourly elevation angle and path throughout the day. Three albedo of values 0.2 which represents grass, 0.6 which represents fresh white concrete and an ideal albedo of 0.99 is combined with the variation in elevation of the bifacial PV module and is further analysed and compared with a monofacial PV module. Simulation results from TracePro show that East-West tracking reduces the Incident angle closer to 0° which results in higher Flux (W) collected by the surface, except for time intervals at 8:00:00 AM and 18:00:00 PM where the sun is located furthest away from the model. The energy yield (kWh) of the bifacial PV panel first increases sharply from an elevation of 0.5 m to 0.8 m where a peak value of 4748.8 kWh is observed, followed by a drop in energy yield (kWh) at 0.9 m and saturation at 1.0 m; hence the elevation parameter of 0.8 m is determined to be the point of inflection. The BGE at 1 m has a significant value of 0.302 which translates to 30.2% in bifacial gain. The largest difference in energy yield (kWh) is observed to be 1114.55 kWh (30.67% increase) at 0.8 m; the bifacial PV module greatly outperforms the monofacial PV module at this elevation in the uniaxial solar tracking system and is determined to be the optimal value.

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Study of energy improvement with the insertion of bifacial modules and solar trackers in photovoltaic installations in Brazil

Cited by 17 publications

References 32 publications

Improving solar photovoltaic installation energy yield using bifacial modules and tracking systems: An analytical approach

Improving solar photovoltaic installation energy yield using bifacial modules and tracking systems: An analytical approach

Thermal comparison of mono-facial and bi-facial photovoltaic cells considering the effect of TPT layer absorptivity

Monofacial and Bifacial Photovoltaics Systems with Uniaxial Solar Tracking

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