The newly appointed Government of a small island, depend on the import of fossil fuels to produce electricity, has the desire to invest in one or two renewable energy technologies. The advantage of the island is the number of different renewable energy potentials. The cost of electricity on the island is $0.39 kWh. 1) Using solar radiation photovoltaic technologies, it was estimated that 500 rooftops, with a total surface area of 456 000 m2 will be available to install the photovoltaic panels. Assume that the solar panels actually cover 90% of the available surface area. Given, the size of a standard photovoltaic cell is 156 mm by 156 mm and for a silicon photovoltaic cell, each PV cell produces a current of 2.5 A at a voltage of 0.5 V. The average daily irradiance for the island is 185 W/m2. Assume the initial capacity expenditure evaluated on a yearly basis of the photovoltaic system, that covers, 90% of the available surface area is US$600 000 and the annual operating cost is US $5 000. Determine, for the photovoltaic system, that cover 90% of the available surface area, (i) the power produced, in kWh, (ii) annual energy produced, (iii) the efficiency of the solar power, (iv) levelized cost of electricity (LCOE), and (v) compare the LCOE value and the cost of electricity, and comment on the capital investment.
Energy transfer
The flow of energy from one region to another region is referred to as energy transfer. Since energy is quantitative; it must be transferred to a body or a material to work or to heat the system.
Molar Specific Heat
Heat capacity is the amount of heat energy absorbed or released by a chemical substance per the change in temperature of that substance. The change in heat is also called enthalpy. The SI unit of heat capacity is Joules per Kelvin, which is (J K-1)
Thermal Properties of Matter
Thermal energy is described as one of the form of heat energy which flows from one body of higher temperature to the other with the lower temperature when these two bodies are placed in contact to each other. Heat is described as the form of energy which is transferred between the two systems or in between the systems and their surrounding by the virtue of difference in temperature. Calorimetry is that branch of science which helps in measuring the changes which are taking place in the heat energy of a given body.
The newly appointed Government of a small island, depend on the import of fossil fuels to produce electricity, has the desire to
invest in one or two renewable energy technologies. The advantage of the island is the number of different renewable energy
potentials. The cost of electricity on the island is $0.39 kWh.
1) Using solar
produces a current of 2.5 A at a voltage of 0.5 V. The average daily irradiance for the island is 185 W/m2. Assume the initial capacity expenditure evaluated on a yearly basis of the photovoltaic system, that covers, 90% of the available surface area is US$600 000 and the annual operating cost is US $5 000.
Determine, for the photovoltaic system, that cover 90% of the available surface area,
(i) the power produced, in kWh,
(ii) annual energy produced,
(iii) the efficiency of the solar power,
(iv) levelized cost of electricity (LCOE), and
(v) compare the LCOE value and the cost of electricity, and comment on the capital investment.
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