Contemporary Engineering Economics (6th Edition)
6th Edition
ISBN: 9780134105598
Author: Chan S. Park
Publisher: PEARSON
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Chapter 6, Problem 37P
To determine
Calculate the cost per kilowatt hour.
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A California utility firm is considering building a 50-megawatt geothermalplant that generates electricity from naturally occurring underground heal. The binary geothermal system will cost $85 million to build and $6 million (including any income-tax effect) to operate per year. (Unlike a conventional fossilfuel plant, this system will require virtually no fuel costs.) The geothermal plant is to last 25 years. At the end of that time, the expected salvage value will be about the same as the cost to remove the plant. The plant will be in operation for 70% (the plant-utilization factor) of the year (or 70% of 8,760 hours per year). If the firm's MARR is 14% per year, determine the cost of generating electricity per kilowatt-hour.
Question 3
Consider a proposal to enhance production of tortillas en a
taqueria.
The new machine is estimated to cost $33 million and will
incur an additional $1.5 million per year in maintenance
costs.
The machine will produce annual savings of $4.5 million each
year.
The Minimum acceptable rate of return (MARR) is 8.5% per
year, and the study period is five years at which time the
machine will be obsolete (worthless).
What is the maximum (minimum) percentage of initial
investmet change that reverse your decision?
An expenditure of $20,000 is made to modify a material-handling system in a small job shop. This modification will result in first-year savings of $2,000, a second-year savings of $4,000, and a savings of $5,000 per year thereafter. How many years must the system last if an 18% return on investment is required? The system is tailor made for this job shop and has no market (salvage) value at any time.
Chapter 6 Solutions
Contemporary Engineering Economics (6th Edition)
Ch. 6 - Prob. 1PCh. 6 - Prob. 2PCh. 6 - Prob. 3PCh. 6 - Prob. 4PCh. 6 - Prob. 5PCh. 6 - Prob. 6PCh. 6 - Consider the cash flows in Table P6.7 for the...Ch. 6 - Prob. 8PCh. 6 - Prob. 9PCh. 6 - The repeating cash flows for a certain project are...
Ch. 6 - Beginning next year, a foundation will support an...Ch. 6 - Prob. 12PCh. 6 - Prob. 13PCh. 6 - Prob. 14PCh. 6 - Prob. 15PCh. 6 - Prob. 16PCh. 6 - Prob. 17PCh. 6 - Prob. 18PCh. 6 - The Geo-Star Manufacturing Company is considering...Ch. 6 - Prob. 20PCh. 6 - Prob. 21PCh. 6 - Prob. 22PCh. 6 - Prob. 23PCh. 6 - Prob. 24PCh. 6 - Prob. 25PCh. 6 - Prob. 26PCh. 6 - Prob. 27PCh. 6 - Prob. 28PCh. 6 - Prob. 29PCh. 6 - Prob. 30PCh. 6 - Prob. 31PCh. 6 - Prob. 32PCh. 6 - Prob. 33PCh. 6 - Prob. 34PCh. 6 - Prob. 35PCh. 6 - Prob. 36PCh. 6 - Prob. 37PCh. 6 - Prob. 38PCh. 6 - Prob. 39PCh. 6 - Prob. 40PCh. 6 - Prob. 41PCh. 6 - Prob. 42PCh. 6 - Prob. 43PCh. 6 - Prob. 44PCh. 6 - Prob. 45PCh. 6 - Prob. 46PCh. 6 - Prob. 47PCh. 6 - Prob. 48PCh. 6 - Prob. 49PCh. 6 - Prob. 50PCh. 6 - Prob. 51PCh. 6 - Prob. 52PCh. 6 - Prob. 53PCh. 6 - Prob. 1STCh. 6 - Prob. 2STCh. 6 - Prob. 3STCh. 6 - Prob. 4ST
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