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In December 2007, what at the time was the largest in North America, a solar voltaic power plant was activated at Nellis Air Force Base near Las Vegas, Nevada. Seventy-two 25-square-inch silicon photovoltaic solar cells, manufactured by SunTech Power Holdings of Jiangsu Province, China, are installed on each panel. There are 12 panels mounted on 5,821 SunPower T20 single-axis sun trackers. The single-crystal solar cells have front-side metallization and a back-side oxide passivation layer to minimize unwanted hole-electron recombination. A sunlight-to-electricity conversion efficiency of 24.2 percent is achieved. a) Calculate the maximum DC electrical power generated by the total solar PV array. b) Fifty-two Xantrex GT250 three-phase DC-AC inverters with 96% efficiency are used to convert the output to AC at 60 Hz. Compute the output power due to maximum sunlight. c) The ratio of average to peak power generated is called the capacity factor. For the Nellis Plant this factor is 22%. Calculate the annual average generation of AC energy output from the Nellis solar power plant. d) If it costs $500,000 per year to amortize the construction, perform maintenance and operate the Nellis plant, compute the nonprofit electricity rate to be billed to the user in cents per kilowatt-hour used. e) If the nominal AC 3? output line-to-line voltage is 480 Vac rms, and the nominal line current is 300 A rms, calculate the nominal average AC output power from each inverter and also calculate the total AC output power from the plant. f) For the inverter AC output power found in part (e) and an inverter DC input current of 540 amperes, compute the DC voltage input to each inverter.
Given A series RLC linear circuit with an inductor1 of 0.5 Henry, followed by a capacitor 0f 0.01 Farad, followed by another inductor2 of 0.5 Henry and a resistance of 10 Ohms. 1 Specify the input impedance of this circuit Z(s).
How is the effect of frequency-selective fading on basic OFDM signaling and what techniques can one use in OFDM to overcome fading?
Explain how to use the knowledge of Structure-Property-Processing-Perfomance relationship to improve on a device based on semiconductivity. Name the device, describe how it is made, the principle guiding its function and application.
Discuss the sequence of actions that occur in the operation of an automatic washing machine. Indicate which actions are time-driven and which actions are event-driven.
Consider a 16-ary PSK system with symbol error probability PE = 10-5. A Gray code is used for the symbol to bit assignment. What is the approximate bit error probability
A series RLC circuit has a resonant frequency of 40 kHz and the Q is 20. At what frequency will the phase angle be 45 degrees
A) Explain why there is a maximum limit on the size of emitter resistor in a UJT circuit. B) Explain why there is a minimum limit on the size of emitter resistor in a UJT circuit.
The toggle switch has been closed for two minutes. During the first 15 seconds after the closing of the toggle switch, pushbutton I2 was pressed four times. Describe what the status of the motor and the pilot light (PL) will be at the two minute m..
(a) If five different types of chips are to be placed on the board, how many different layouts are possible (b) If the five chips that are placed on the board are of the same type, how many different layouts are possible
An input signal of 10V at 0o and a frequency of 1592 Hz is applied to a parallel RC circuit with resistor R = 100 ohm and capacitor C = 1 F. what is The source current.
Design the low pass filter with the 3 dB point at 1Khz. DC gain is 0 dB. use the C value as 100 uf and input ac magnitude 1 V. use the AC simulation between 1 mHz to 1 Khz.
Find the electical force of attraction of a 6 coulomb positive charge and an 18 coulomb negative charge separated by a distance of 12 centimeters.
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