A worldwide cost-based design and optimization of tilted bifacial solar farms

Patel, M. Tahir; Khan, M. Ryyan; Sun, Xingshu; Alam, Muhammad Ashraful

doi:10.1016/j.apenergy.2019.03.150

Cited by 115 publications

(57 citation statements)

References 41 publications

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“…In their case, the sun exposure associated with the terrain is important. In practice, this usually means that agricultural land must be taken out of production [21,22].…”

Section: Introductionmentioning

confidence: 99%

Photovoltaic Farms—Economic Efficiency of Investments in North-East Poland

2021

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The abandonment of conventional sources in favor of energy from renewable energy sources (RES) has a global dimension, and the dynamic increase in the share of energy from photovoltaic systems in the energy mix of many countries results from the possibility of obtaining it both on a small scale (micro-installations) and as part of economic investments (photovoltaic power plants). The study aimed to assess the economic efficiency of 22 photovoltaic farms located in northeastern Poland. The research covered 5 solar power plants with a capacity of up to 799 kWp (I), 13 between 800 and 1100 kWp (II), and 4 installations of 1.98 MWp (III). The evaluation was based on net present value (NPV), internal rate of return (IRR), payback period (PP), profitability index (PI), accounting rate of return (ARR). Additionally, a sensitivity analysis was carried out regarding the value of economic indicators. The analysis shows that all studied PV farms are economically justified investments (NPV > 0) regardless of the adopted scenario. Solar power plants of the largest analyzed capacity (group III) resulted in being the most profitable ones, but no linear relationship between the level of productivity and profitability was established. Due to the large variation in terrain shape in northeastern Poland, landscape value and social benefits, which are difficult to assess, the support system for investments regarding the construction of photovoltaic power plants proved to be the most effective in group I.

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“…In their case, the sun exposure associated with the terrain is important. In practice, this usually means that agricultural land must be taken out of production [21,22].…”

Section: Introductionmentioning

confidence: 99%

Photovoltaic Farms—Economic Efficiency of Investments in North-East Poland

2021

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“…In addition, these simulated output performances were analyzed based on latitude and region, which affect environmental conditions [13,14]. Analyses of the output performance of bifacial PV modules at a vertical tilt were also carried out, but through simulations [15][16][17][18][19][20]. In general, before studies can take place, they are usually analyzed using simulations.…”

Section: Introductionmentioning

confidence: 99%

Practical Performance Analysis of a Bifacial PV Module and System

Ju-Hee

Lee

2020

Energies

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Bifacial photovoltaic (PV) modules can take advantage of rear-surface irradiance, enabling them to produce more energy compared with monofacial PV modules. However, the performance of bifacial PV modules depends on the irradiance at the rear side, which is strongly affected by the installation setup and environmental conditions. In this study, we experiment with a bifacial PV module and a bifacial PV system by varying the size of the reflective material, vertical installation, temperature mismatch, and concentration of particulate matter (PM), using three testbeds. From our analyses, we found that the specific yield increased by 1.6% when the reflective material size doubled. When the PV module was installed vertically, the reduction of power due to the shadow effect occurred, and thus the maximum current was 14.3% lower than the short-circuit current. We also observed a maximum average surface temperature mismatch of 2.19 °C depending on the position of the modules when they were composed in a row. Finally, in clear sky conditions, when the concentration of PM 10 changed by 100 µg/m3, the bifacial gain increased by 4%. In overcast conditions, when the concentration of PM 10 changed by 100 µg/m3, the bifacial gain decreased by 0.9%.

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“…That was already demonstrated in the Refs. 20,21 . For bifacial PV yield estimation, we have found that the minimum and maximum values of RMSE of the energy yield of a bifacial PV module are approximately 7.0 W/h and 30 W/h.…”

Section: Resultsmentioning

confidence: 99%

Solar irradiation on the rear surface of bifacial solar modules: a modeling approach

Durusoy

Özden

Akinoglu

2020

Sci Rep

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the transition in the energy sector has started with the growing population leading to the growing energy demands. the use of photovoltaic (pV) technologies has become a crucial way to meet energy demand. There are many ongoing studies for increasing the efficiency of commercial PV modules. One way to increase the energy yield of the pV modules is to use bifacial solar panels by capturing the rear side illumination as well. one of the challenges for estimating the bifacial module performances is to calculate the solar irradiation impinging on the rear side. Many models presented up to now require high computational power, and they are challenging to implement real-life conditions. In this paper, a simple physical modeling approach is presented to calculate the rear side solar irradiation incident on the bifacial modules. For the rear side irradiance estimation, the maximum difference between the measured and calculated rear side irradiance value is approximately 10 W/m 2. the model does not require high computational skills since it is neither focused on the view factor nor ray tracing methodologies but instead uses solar geometry. The yield of the module is also modeled, calculated, and compared with the measurements. The growing energy demand leads to the transition in the energy sector, and renewable energy has gained importance. Since solar energy is one of the most significant sustainable sources, photovoltaic technology dominates the renewable energy market. There are commercially available software programs such as PVSYST, PV*Sol, Helioscope, and PVWatts to assess the performance of the photovoltaic system 1. However, modeling the field performance of a bifacial PV system is much complicated since estimating the rear side irradiation depends not only on the location and system design but also on installation conditions such as the tilt angle, the elevation of the module, and the albedo of the ground 2. For this reason, it is necessary to know the effects of these parameters to predict the energy yield of the system. The most crucial factor for a PV system to function at its maximum potential is the amount of solar radiation received. The total solar irradiation, namely, global solar irradiation, consists of beam, diffuse, and ground reflected irradiation 3. Meteorological stations usually provide data for global solar irradiation on a horizontal surface. After determining the beam and diffuse components of global solar irradiation on a horizontal surface, tilted versions of these components can be deduced 4. For this purpose, there are several models available to estimate the solar irradiation on a tilted PV module. Compared to the monofacial PV modules, the energy yield of bifacial PV modules is up to 25% more than monofacial PV since bifacial PV modules can capture rear side irradiation as well. Although bifacial PV technology arises in the 1960s 5 , there is still no standard testing method yet. The reason is that there are lots of installation and location-dependent parameters that affect the rear side...

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A worldwide cost-based design and optimization of tilted bifacial solar farms

Cited by 115 publications

References 41 publications

Photovoltaic Farms—Economic Efficiency of Investments in North-East Poland

Photovoltaic Farms—Economic Efficiency of Investments in North-East Poland

Practical Performance Analysis of a Bifacial PV Module and System

Solar irradiation on the rear surface of bifacial solar modules: a modeling approach

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