DESC:FIELD OF INVENTION
[001] The field of invention generally relates to solar power. More specifically, it relates to a system and method for achieving uniform rear side irradiance.

BACKGROUND
[002] Renewable energy, also known as clean energy, is derived from naturally replenished sources or processes. Renewable energy is energy derived from renewable resources that are replenished naturally on a human timescale. It includes solar energy, wind, rain, tides, waves, and geothermal heat.
[003] Solar energy is defined as solar radiation that can generate heat, cause chemical reactions, or generate electricity. Solar panels, which convert solar energy into electricity, can be used to harness solar energy for human use. Panel is an installation assembly of photovoltaic cells mounted in a framework. Solar panels generate direct current electricity by utilizing sunlight as a source of energy. A PV panel is a collection of PV modules, and an array is a collection of PV panels. Photovoltaic arrays provide solar energy to electrical equipment.
[004] Over the last years, solar panels have been developed to capture maximum sunlight, such as bifacial module. The bifacial modules can generate energy from the front and rear side of a module. Unlike mono-facial modules, the rear side of bifacial modules is lined with cells to capture reflected and diffused irradiation. In order to capture more sunlight from rear side of the module, a reflector is fitted on/above the ground which helps in reflecting the sunlight which hits the ground to be captured by the rear side of the module.
[005] The irradiance captured on the rear side of the solar module is non-uniform which affects the amount of rear side power generation as the cell with the lowest irradiance pulls down the generation of all the other interconnected cells in the series. Therefore, in order to overcome the aforementioned issues, there is a need for reducing the non-uniformity of irradiance on the rear side to improve the rear side power generation.

OBJECT OF INVENTION
[006] The principal object of this invention is to achieve uniformity/reduce non-uniformity of rear side irradiance.
[007] An object of the invention is to place one or more reflectors strategically based on the study of the reflection pattern and power generation for the non-uniformity of rear irradiance, to reduce the non-uniformity of the rear irradiance and measure the increase in power generation.

BRIEF DESCRIPTION OF FIGURES
[008] This invention is illustrated in the accompanying drawings, throughout which, like reference letters indicate corresponding parts in the various figures.
[009] The embodiments herein will be better understood from the following description with reference to the drawings, in which:
[0010] Figure 1a illustrates a diagram of a system, without one or more reflectors, in accordance with an embodiment of the present disclosure; and
[0011] Figure 1b illustrates a diagram of the system displaying one or more sensors placed on rear side of the bifacial solar panel, in accordance with an embodiment of the present disclosure;
[0012] Figure 1c illustrates a graphical representation of non-uniform rear irradiance, in accordance with an embodiment of the present disclosure;
[0013] Figure 2a illustrates a diagram of the system with the one or more reflectors, in accordance with an embodiment of the present disclosure;
[0014] Figure 2b illustrates a graphical representation uniform rear irradiance, in accordance with an embodiment of the present disclosure; and
[0015] Figure 3 illustrates a flowchart depicting the steps involved in achieving uniform rear irradiance, in accordance with an embodiment of the present disclosure.

STATEMENT OF INVENTION
[0016] The present invention is a system and method for achieving uniform rear side irradiance. The system comprises a bifacial solar panel, one or more sensors, a reference module, and one or more reflectors. The bifacial solar panel comprises a front side and a rear side solar panel.
[0017] The one or more sensors, operatively connected to the rear side of the bifacial solar panel, configured to capture irradiance reflected from the ground, thereby generating captured data. The reference module configured to receive captured data, via the one or more sensors, to analyse power generation for the non-uniformity of rear irradiance.
[0018] The one or more reflectors are placed below the rear side of the bifacial solar panel based on the analysed power generation to achieve uniform irradiance.

DETAILED DESCRIPTION
[0019] The embodiments herein and the various features and advantageous details thereof are explained more fully with reference to the non-limiting embodiments that are illustrated in the accompanying drawings and/or detailed in the following description. Descriptions of well-known components and processing techniques are omitted so as to not unnecessarily obscure the embodiments herein. The examples used herein are intended merely to facilitate an understanding of ways in which the embodiments herein may be practiced and to further enable those of skill in the art to practice the embodiments herein. Accordingly, the examples should not be construed as limiting the scope of the embodiments herein.
[0020] Figure 1a illustrates a diagram of a system 100 for achieving uniform irradiance, in accordance with an embodiment of the present disclosure. The system 100 comprises a bifacial solar panel 102, one or more sensors 106 and a reference module.
[0021] Figure 1b illustrates a diagram of the system displaying one or more sensors placed on or in proximity of the rear side of the bifacial solar panel, in accordance with an embodiment of the present disclosure. The bifacial solar panel 102 comprises a front side and a rear side, wherein the rear side is configured with the one or more sensors 106. The one or more sensors 106 are placed on the rear side of the bifacial solar panel 102. In one embodiment, the one or more sensors 106 are placed at a predefined distance from each other. In one embodiment, the one or more sensors 106 are pyranometers. The one or more sensors 108 are configured to capture irradiance reflected from the ground 104, thereby generating captured data.
[0022] The reference module receives input captured data from the one or more sensors 106, wherein via the reference module, power generation for the non-uniformity of rear irradiance is studied/analysed to achieve uniform irradiance. Based on the studying/analysis of the reference module, at least one pattern of reflection from ground 104 to the rear side of the bifacial solar panel 102 is observed. The reference module is positioned adjacent to the bifacial solar panel 102. The reference module ensures uniform irradiance distribution on the rear side of the bifacial solar panel 102 by providing feedback for optimizing the positioning and performance of one or more reflectors 202 located below the rear side of the solar panel 102.
[0023] Figure 1c illustrates a graphical representation non-uniform rear irradiance, 30 in accordance with an embodiment of the present disclosure. In an embodiment, study is represented in a graph form, wherein the x-axis represents the one or more sensor’s 106 position and the y-axis represents irradiance. As shown in Fig. 3, the graph displays a non-uniform irradiance.
[0024] Figure 2a illustrates a diagram of the system 100 with the one or more reflectors, in accordance with an embodiment of the present disclose. Upon understanding the reflection pattern, the one or more reflectors 202 are placed below the rear side of the bifacial solar panel 102. In an embodiment, the one or more reflectors 202 are placed at a predefined position, below the rear side of solar panel 102, based on the reflection pattern. In an embodiment, the one or more reflectors 202 are placed on the ground 104 below the rear side of the bifacial solar panel 102.
[0025] Further, Figure 2b illustrates a graph representing reduced non-uniformity irradiance, in accordance with an embodiment of the present disclosure. The x-axis of the graph represents the one or more sensor 106 position, and the y-axis represents irradiance. In an embodiment, the reference module is used to understand where to place the one or more reflectors 202 in order to achieve maximum, uniform rear side irradiance of the bifacial solar panel by calculating power increase in irradiance generation.
[0026] Figure 3 illustrates a flowchart 300 depicting the steps involved in achieving uniform rear side irradiance, in accordance with an embodiment of the present disclosure. The method 300 includes providing a bifacial solar panel 102 that comprises a front side and a rear side solar panel, in step 302. Thereafter, the method 300 includes placing one or more reflectors 202 below the rear side of the bifacial solar panel 102 based on the analysed power generation to achieve uniform irradiance, in step 304.
[0027] The advantage of the current invention incorporates studying reflection pattern by placing the sensors on the ground below the rear side of the bifacial solar panel. This aids in placing the one or more reflectors below the rear side of the bifacial solar panel to achieve maximum and uniform capture of irradiance by the rear side of the bifacial solar panel.
[0028] The foregoing description of the specific embodiments will so fully reveal the general nature of the embodiments herein that others can, by applying current knowledge, readily modify and/or adapt for various applications such specific embodiments without departing from the generic concept, and, therefore, such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed embodiments.
[0029] It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, while the embodiments herein have been described in terms of preferred embodiments, those skilled in the art will recognize that the embodiments herein can be practiced with modification within the scope of the embodiments as described here. ,CLAIMS:We claim:
1. A system (100) for achieving uniform irradiance, comprising:
a bifacial solar panel (102) that comprises a front side and a rear side solar panel; and
one or more reflectors placed below the rear side of the bifacial solar panel (102) to achieve uniform irradiance based on the analyzed power generation.

2. The system (100) as claimed in claim 1, further comprising one or more sensors (108) placed on or in proximity of the rear side of the bifacial solar panel, configured to capture irradiance reflected from the ground (104), thereby generating captured data.

3. The system (100) as claimed in claim 1, further comprising a reference module is positioned adjacent to the bifacial solar panel (102), configured to receive captured data, from the one or more sensors (108), to analyse non-uniformity of rear irradiance and the one or more reflectors (202) that are placed below the rear side of the bifacial solar panel (102) to achieve uniform irradiance.

4. The system (100) as claimed in claim 1, wherein the one or more sensors (108) are placed at a predefined distance from each other on the rear side of the bifacial solar panel (102).

5. The system (100) as claimed in claim 1, wherein based on the analysis of the reference module, at least one pattern of reflection from ground (104) to the rear side of the bifacial solar panel (102) is observed.

6. The system (100) as claimed in claim 1, wherein the one or more reflectors (202) are placed at predefined positions, on the ground below the rear side of solar panel (102), based on the reflection pattern observed.

7. The system (100) as claimed in claim 6, wherein the one or more reflectors (202) are placed on the ground at the predefined positions in order to achieve maximum uniform rear side irradiance of the bifacial solar panel (102) by calculating power increase in irradiance generation.

8. A method for achieving uniform irradiance, comprising:
providing a bifacial solar panel (102) that comprises a front side and a rear side solar panel; and
placing one or more reflectors (202) below the rear side of the bifacial solar panel (102) based on the analysed power generation to achieve uniform irradiance.

9. The method as claimed in claimed in claim 8, further comprising providing one or more sensors (108), placed on or in proximity of the rear side of the bifacial solar panel, to capture irradiance reflected from the ground (104), thereby generating captured data.

10. The method as claimed in claimed in claim 8, further comprising providing a reference module that is positioned adjacent to the bifacial solar panel (102), to receive captured data, from the one or more sensors (108), to analyse non-uniformity of rear irradiance and the one or more reflectors (202) that are placed below the rear side of the bifacial solar panel (102) to achieve uniform irradiance.

11. The method as claimed in claim 9, comprising placing one or more sensors (108) at a predefined distance from each other on the rear side of the bifacial solar panel (102).

12. The method as claimed in claim 8, comprising observing at least one pattern of reflection from ground (104) to the rear side of the bifacial solar panel (102), based on the analysis of the reference module.

13. The method as claimed in claimed in claim 8, comprising placing the one or more reflectors (202) at predefined positions, on the ground below the rear side of solar panel (102), based on the reflection pattern observed.

14. The method as claimed in claim 13, comprising placing the one or more reflectors (202) on the ground at the predefined positions in order to achieve maximum uniform rear side irradiance of the bifacial solar panel (102) by calculating power increase in irradiance generation.