Considering the aspect form the terms of industrial and the energetic capacity of a particular nation, where power and electricity plays a major thrust to sustain the nation’s life and areas of existence. Power plays a major role, as it helps us to live lead and sustain our lives. Also, it stands to be the major pillar of the economic life of the country. As times are changing and the need for renewal of energy and power is coming up, we’re also the need and nature of energy is going through a phase of transition. The power plants are playing a very important role in this aspect. Thus, solar-powered panels are coming up on a vast scale. In this case, where the productions of these solar panels are dependent, the major solar power suppliers in West Bengal are also involved at a vast scale. The major parameters, based on which these modules are usually measured, can be seen in terms of varying standardized testing conditions. The basic standard based on which these Standardized Testing Conditions are based, can be analyzed in various forms, like Temperature- A standard temperature is maintained which is based at 25°C with an irradiance of around 1000 W/m2 and air mass 1.5 spectrum’s. Another major condition that corresponds concerning the irradiance and the spectrum of sunlight is incident upon a clear day sun-facing to about 37 degrees tilted at an angle of 41.81 degrees above the horizon.