It will take a year to install so installation will be completed after a year.
The frunance will last for 20 years it means 20 year after a year of installation.
Answers are rounded to 2 decimal points
Ans a) NPV 82490.66 See the calculation below
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | |
Installation Cost | -30000 | ||||||||||||||||||||
Maintinance Exp | -1800 | -1800 | -1800 | -1800 | -1800 | -1800 | -1800 | -1800 | -1800 | -1800 | -1800 | -1800 | -1800 | -1800 | -1800 | -1800 | -1800 | -1800 | -1800 | -1800 | |
Reduce Consumption of Heating Oil Gallons | 2700 | 2700 | 2700 | 2700 | 2700 | 2700 | 2700 | 2700 | 2700 | 2700 | 2700 | 2700 | 2700 | 2700 | 2700 | 2700 | 2700 | 2700 | 2700 | 2700 | |
This Year cost is $ 3, Increasing $0.5 for next 3 years | 4 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | |
Total Saving of Heating Oil | 10800 | 12150 | 12150 | 12150 | 12150 | 12150 | 12150 | 12150 | 12150 | 12150 | 12150 | 12150 | 12150 | 12150 | 12150 | 12150 | 12150 | 12150 | 12150 | 12150 | |
Saving Net of Maintinance exp | 9000 | 10350 | 10350 | 10350 | 10350 | 10350 | 10350 | 10350 | 10350 | 10350 | 10350 | 10350 | 10350 | 10350 | 10350 | 10350 | 10350 | 10350 | 10350 | 10350 | |
Present Value at Discount Rate 6% | -28301.887 | 8009.968 | 8690.06 | 8198.169 | 7734.122 | 7296.342 | 6883.341 | 6493.718 | 6126.149 | 5779.386 | 5452.251 | 5143.633 | 4852.484 | 4577.815 | 4318.693 | 4074.239 | 3843.622 | 3626.058 | 3420.81 | 3227.179 | 3044.508 |
NPV sum of dicounted cash flow | 82490.66 |
Ans b) IRR is 33.27% See the calculation below
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | |
Installation Cost | -30000 | ||||||||||||||||||||
Maintinance Exp | -1800 | -1800 | -1800 | -1800 | -1800 | -1800 | -1800 | -1800 | -1800 | -1800 | -1800 | -1800 | -1800 | -1800 | -1800 | -1800 | -1800 | -1800 | -1800 | -1800 | |
Reduce Consumption of Heating Oil Gallons | 2700 | 2700 | 2700 | 2700 | 2700 | 2700 | 2700 | 2700 | 2700 | 2700 | 2700 | 2700 | 2700 | 2700 | 2700 | 2700 | 2700 | 2700 | 2700 | 2700 | |
This Year cost is $ 3, Increasing $0.5 for next 3 years | 4 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | |
Total Saving of Heating Oil | 10800 | 12150 | 12150 | 12150 | 12150 | 12150 | 12150 | 12150 | 12150 | 12150 | 12150 | 12150 | 12150 | 12150 | 12150 | 12150 | 12150 | 12150 | 12150 | 12150 | |
Saving Net of Maintinance exp | 9000 | 10350 | 10350 | 10350 | 10350 | 10350 | 10350 | 10350 | 10350 | 10350 | 10350 | 10350 | 10350 | 10350 | 10350 | 10350 | 10350 | 10350 | 10350 | 10350 | |
IRR is Present values of infolws and outflows are equals to 0 | 33.27% |
Ans c) Payback period is 3.03 years See the calculation below
Instalation Exp | 30000 |
Cash of 1st three years | 29700 |
Remaining | 300 |
Remaining divided total cash flow of next year | 0.0289855 |
So Payback period is 3 years + 0-0289 | 3.03 |
Ans d) Equivalent Annual Cost
Equivalent Annual Cost = (Cost of Machine / Annuity Factor ) + Annual Maintenance Exp
Annuity Factor = 1 - (1 / (1+r)^n ) / r
Annuity Factor = (1 - (1 / (1+0.06)^20 )) / 0.06 = 11.7699
Equivalent Annual Cost = (36000 / 11.4699) + 1800 = 4938.65
Ans e) Equivalent Annual Saving
Equivalent Annual Saving = NPV / Annuity Factor
NPV = 82490.66
Annuity Factor = 11.7699
Equivalent Annual Saving = 82490.66/ 11.7699 = 7008.612
And f) Differnece between Equivalent Annual Cost and Equivalent Annual Saving
= Equivalent Annual Saving - Equivalent Annual Cost = 7008.61 - 4938.65 = 2069.96
Hope this helps, Thanks and have a good day
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