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Energy Markets’ Future
Published in Anco S. Blazev, Global Energy Market Trends, 2021
Bifacial solar cells offer another emerging option, to be used in glass/glass modules enabling an increase in performance ratio and energy output of up to 15% using the light reflected by the ground or buildings through the rear face. HJT technology, possibly combined with back-contact designs, may be further improved by using alternatives to amorphous silicon, in order to increase the overall spectral response.
Thermal model of bifacial silicon photovoltaic modules with different backsheets under outdoor conditions
Published in International Journal of Green Energy, 2023
Bingnan Wang, Shan Jiang, Zhan’ao Tan
Bifacial silicon photovoltaic (PV) modules can provide extra power for the same installed area compared to monofacial modules by utilizing reflected, diffuse, and scattered irradiance from rear side of the modules. By assembling bifacial solar cells with double transparent materials such as glass or a transparent backsheet into PV modules, the energy from the backside of the module can be harvested, increasing the yield by 25% to 30% depending on the electrical and terrain characteristics (Catena, Cascone, and Carbone 2018; Guerrero-Lemus, Vega, and Kim 2016; Yin, Zhou, and Sun 2021). According to ITRPV, the development of bifacial modules will lead to these modules achieving 80% of the market share by 2030, and glass as the rear-side cover is expected to have approximately 45% of the market share. Transparent backsheets are considered an upcoming trend – especially for bifacial cell applications as cost- and weight-efficient alternatives to glass, which will have 75% of the market share by 2031 (2021).
Top sensitizers for highly efficient dye-sensitized solar cells
Published in Radiation Effects and Defects in Solids, 2022
Giuseppe Calogero, Gaetano Di Marco
The albedo is defined as the fraction of light reflected by an object or a surface with respect to the one that affects it; it, therefore, indicates the reflective power of a surface. The exact value of the fraction of reflected light depends, for the same material, on the wavelength of the radiation considered. If the word albedo is used without further specification, it means visible light. The albedo effect can increase the efficiency of photovoltaic devices. In fact, in the presence of albedo light, the bifacial solar cell simultaneously absorbs light via the front and rear sides. Unfortunately, not in all photovoltaic devices, you can take advantage of the albedo effect, in fact almost all types of traditional photovoltaic devices are unable to exploit this effect, as the rear side of the cell is opaque or reflective. Obviously, the DSSCs if made with semi-transparent electrodes can take advantage of the albedo effect. In Barichello et al. (40), the albedo effect of a white background was used to increase the PCE, of a Y123-based DSSC, by 101%. One of the most important features to exploit the albedo effect is that the device exhibits a high degree of double-sided, that is, it can collect light energy from both sides (front and rear) in the case of DSSC with Y123 the Jsc was boosted up to a maximum of 26.68 mA/cm2 when a commercially available white paper was applied to the background.
Analysis of annual bifacial gain in energy and annual energy yield of bifacial modules at low latitudes
Published in International Journal of Green Energy, 2021
Heyuan Du, Guoqiang Hao, Hongbo Li, Qingguo Xu, Xiaojun Ye
Limitations of various energy generating resources is a global problem that restricts future economic and social development. Solar energy has received extensive attention and research due to its advantages of cleanliness, safety, and abundant availability. To improve methods of harnessing sunlight for energy generation while also reducing costs, many research institutions launched research into crystalline silicon cell technology, thus resulting in the development of bifacial solar cells. The first substrate used to create bifacial solar cells was produced 40 years ago (Luque, Cuevas, and Ruiz 1980). Today, the bifacial module have been commercialized by most solar enterprises including Trina Solar, Longi, Risen, and Prism Solar. As the technology of bifacial solar photovoltaic (PV) modules has developed rapidly, it has also been combined with other technologies like PERC, MBB, and Half-cut. The market adoption forecast of bifacial modules is predicted to comprise 30% of the crystalline silicon module market by 2026 (Prism Solar Technologies Inc 2020). It is highly likely that bifacial modules will replace the use of monofacial models in the future.