Journal of Energy Research and Environmental Technology (JERET) Print ISSN: 2394-1561; Online ISSN: 2394-157X; Volume 2, Number 3; April-June, 2015; pp. 232-235 © Krishi Sanskriti Publications http://www.krishisanskriti.org/jeret.html Performance analysis of 75 W Transparent PV Panels Sibu Sam John 1 , Pankaj Kumar 2 , K. Sudhakar 3 and Arbind Kumar 4 1,3 Maulana Azad National Institute of Institute, Bhopal (.M.P.) 2,4 E-mail: Birla Institute of Technology Mesra Ranchi (.M.P.) 1 sibujohn45@gmail.com, 2 pankajkumar.en@gmail.com, 3 nittsudhakar @gmail.com, 4 arbindkumar@bitmesra.ac.in Abstract—In this era of energy crisis, the use of renewable energy sources has increased to reduce the expenditure of countries in harnessing conventional energy sources like coal and petroleum. There are several new technologies came into existence. One such is transparent PV panel. The transparent PV panel helps in harnessing both solar energy and daylight that will not only generate electricity but also reduce consumption during peak load. In this paper the performance analysis has been done on transparent PV to calculate the efficiency of the transparent PV panel so as to determine how better is the working of the transparent PV as a rooftop panel. Keywords: Photovoltaic, millimeter, kilogram, watt 1. INTRODUCTION The world is going through an energy crisis. The recent science and technology development are mostly dealing with alternative energy source to combat the increasing energy demand. The countries have their major revenues spend on supplying and harnessing energy sources [1]. So to avoid this, the use of renewables has increased substantially, especially solar energy. The solar panels are installed everywhere for harnessing solar energy. New technologies are also introduced regarding installation of solar PV. One such method involves “building integrated PV”. The buildings usually install either rooftop solar PV or transparent PV integrated with doors and windows. The transparent PV panels are usually installed either on windows or doors to harness both solar energy and daylight. This will not only supply electricity at peak hours, but also will reduce artificial light expenditures. A transparent photovoltaic (PV) is a building component generating electricity via PV modules and allowing daylight to enter into the interior spaces [2]. The transparent PV panel is made of amorphous Silicon [3] and has a transparency level of 20%. 1.1 Performance analysis The analysis usually includes the efficiency of the solar panel that it can reach during its operation. The efficiency of the solar panel is given as:- η  =       Where η  is the efficiency of the solar PV   is the maximum power point power given by   = V oc I sc Where V oc is the open circuit voltage and I sc is the short circuit current.   is the input light irradiance   is the surface area of the solar PV [4]. 1.2 Instruments used The following instruments were used:- • Transparent PV: -The transparent PV used is made of hydrogenated silicon and is monocrystalline in nature [3]. It has 20% transparency and is used as building integrated. It has following specification:-  Power rating =75 W  Open circuit voltage(V oc ) = 21.8 V  Short circuit current(I sc ) = 4.79 A • Solar power meter: -this instrument was used to measure the irradiance (KW/m 2 • Voltmeter: -this instrument was used to measure the open circuit voltage (V oc ). It has a range of 0-100V. ). Irradiance is the amount of sunlight falling on the surface of the solar panel. This serves as the input power to the solar panel. • Ammeter: -this instrument was used to measure the short circuit current (I sc ). It has a range of 0-2.5A. • Rheostat: - this instrument was used as a variable resistance in the setup. • Environment Meter: - this instrument was used to measure the relative humidity and wind speed. It is an Extech instrument with model no. 45170. • Infrared thermometer: - this instrument was used to measure the module temperature. It has the range of 0- 1mW and output wavelength of 630- 670 nm. • Digital thermometer: - This instrumentwas used to measure the ambient temperature. It has a temperature range of -50’C to 300’C. • Multimeter: - this instrument was used to measure the voltage and current at the output of the module. It has the range of 0-1000V and 0-10A.