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Category > Management Posted 15 Feb 2018 My Price 9.00

Individual industries

7-40. Individual  industries  will  use  energy  as efficiently   as   it   is   economical   to   do   so,   and there  are  several  incentives  to  improve  the  efficiency

 

of energy consumption. To illustrate, consider the selection of a new water pump. The pump is to operate 800 hours per year. Pump A costs $2,000, has an overall efficiency of 82.06%, and it delivers 11 hp. The other available alternative, pump B, costs $1,000, has an overall efficiency of 45.13%, and delivers 12.1 hp. Both

TABLE P7-39 Table for Problem 7-39

 

 

Fixture X

Fixture Y

Capital investment

$30,000

$40,000

Annual operating expenses

$3,000

$2,500

Useful life

6 years

8 years

Market value

$6,000

$4,000

Depreciation method

SL to zero book

MACRS (GDS) with 5-year

 

value over 5 years

recovery period

pumps have a useful life of five years and will be sold at that time. (Remember 1 hp = 0.746 kW.)

 

Pump A will use SL depreciation over five years with an estimated SV of zero. Pump B will use the MACRS depreciation method with a class life of three years. After five years, pump A has an actual market value of $400, and pump B has an actual market value of $200.

 

Using the IRR method on the after-tax cash flows and a before-tax MARR of 16.67%, is the incremental investment in pump A economically justifiable? The effective income tax rate is 40%. The cost of electricity is $0.05/kWh, and the pumps are subject to a study period of five years. (7.10)

 

Answers

Maurice Tutor
(5)
Status NEW Posted 15 Feb 2018 09:02 PM My Price 9.00

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