Abstract
Green energy by PV systems reduces the dependence on fossil fuel-based power plants. Maximizing green energy to meet the demand reduces the burden on conventional power plants, hence lesser burning and greenhouse gases (GHG) emissions. For this purpose, this study draws a relationship between tracking schemes of the PV systems to GHG mitigation potential. The best fit location for detailed analyses is selected among the 15 most populous cities of Australia. The solar radiation potential is increased to 7.78 kWh/m2/d through dual axes tracking compared to 7.54, 6.82, 5.94, 5.73 kWh/m2/d through the one axis, azimuth based, fixed-tilted, and fixed-horizontal surface schemes, respectively. Through the dual axes tracking scheme, a 1 MW PV system per annum energy output avoids the burning of 796,065.3 L of gasoline, 4308.7 barrels of crude oil which is equal to the mitigation of 1852.7 tCO2 equivalent GHGs. Concisely, the PV system, through its green energy output, can avoid the release of greenhouse gases from fossil-fuel plants to tackle climate change more effectively.
Highlights
Energies 2021, 14, 5348. https://Man has been credited with global warming [1]
Trackers increase the solar radiation and PV panel’s intercept, which results in higher green energy output, lesser dependence on the fossil-fuel-based main grid, which is a major source of greenhouse gases (GHG), global warming, and climate change
Results validated that a 1 MW PV system located in a populated city with high solar radiation potential, Townsville, Australia, had a per annum 1,654,301.9 kWh energy potential at fixed- horizontally placed PV panels, which was increased to 1,710,339.9 kWh by tilting the fixed PV system equivalent to location latitude and 180 azimuths
Summary
Man has been credited with global warming [1]. Digitalization of the world at the cost of energy production by burning fossil fuels releases greenhouse gases (GHG). GHGs trap the radiated energy received on the Earth from the Sun and leads to global warming, which results in the significant degradation of the environment, such as climate change. Energy production and utilization accounts for 80% of CO2 and two-thirds of global GHG emissions [1,2,3]. India accounts for 7%, and the US for 15% of total global emissions [4]. Natural factors, such as the carbon cycle, volcanic eruption, the
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