An electrical utility is experiencing a sharp power demand that continues to grow at a high rate in a certain local area.
Two alternatives are under consideration. Each is designed to provide enough capacity during the next 25 years, and both will consume the same amount of fuel, so fuel cost is not considered in the analysis.
Alternative A. Increase the generating capacity now so that the ultimate demand can be met without additional expenditures later. An investment of
million would be required, and it is estimated that this plant facility would be in
service for 25 years and have a salvage value of
million. The annual operating and maintenance costs (including income taxes) would be
Alternative B. Spend
million now and follow this expenditure with future additions during the 10th year and the 15th year. These additions would cost
million, respectively. The facility would be sold 25 years from now with a salvage value of
million. The annual operating and maintenance costs (including income taxes) will be
$250 comma 000250,000
initially and will increase to
million after the second addition (from the 11th year to the 15th year) and to
million during the final 10 years. (Assume that these costs begin one year subsequent to the actual addition.)
On the basis of the present-worth criterion, if the firm uses
as a MARR, which alternative should be undertaken?
Adopt incremental cost approach.
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