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Life cycle cost

NNicole6y ago
Exam question (Mar/Jun 2019 sample): Volt Co generates and sells electricity. It operates two types of power station; nuclear and wind. The costs and output of the two types of power station are detailed below: Nuclear station A nuclear station can generate 9,000 gigawatts of electricity in each of its 40 years of useful life. Operating costs are $486m per year. Operating costs include a provision for depreciation of $175m per year to recover the $7,000m cost of building the power station. Each nuclear station has an estimated decommissioning cost of $12,000m at the end of its life. The decommissioning cost relates to the cost of safely disposing of spent nuclear fuel. Wind station A wind station can generate 1,750 gigawatts of electricity per year. It has a life-cycle cost of $55,000 per gigawatt and an average operating cost of $40,000 per gigawatt over its 20-year life. What is the life-cycle cost per gigawatt of the nuclear station (to the nearest $'000)? The solution excluded the 'cost of building' - should this always be excluded? Also, the annual operating cost is '$486m' so I calculated $486,000,000 * 40 years but the solution doesn't seem to do it this way, can you please explain why?
John MoffatJohn MoffatTutor6y ago#1
The answer has taken 486m x 40 and has arrived at a total operating cost of 19,440m. The cost of the building has not been excluded. The 486m is including 175m a year as depreciation of the building. (40 x 175m = 7,000m).
NNavindaSupporter6y ago#2
Hello John, Another question for Wind Station. Wind station : A wind station can generate 1,750 gigawatts of electricity per year. It has a lifecycle cost of $55,000 per gigawatts and an average operating cost of $40,000 per gigawatts over its 20- years life. If volt Co set a price to earn operating margin of 40% over the life a wind station , what will be the total profit per station (to the nearest $m)? Solution : Selling price = $40,000/60 = $ 66667 Life profit per gigawatts = $11,667( $66667- $55,000 ) Total lifetime profit = $408m ( 1,750* 20yrs * $11,667. I'm terribly sorry to ask (it must be very easy) but I can't get my head around as to why we divide $40,000 by 60%, would you mind explaining please? Many thanks Navinda
John MoffatJohn MoffatTutor6y ago#3
If the margin is 40%, then for every $100 revenue the profit must be $40 and therefore the cost must be $60 Therefore for every $60 cost, the revenue is $100. Therefore the revenue is 100/60 times the cost. It will help you to watch the Paper FA lectures on mark-ups and margins.
NNavindaSupporter6y ago#4
Will do and Thank you ever so much ?
John MoffatJohn MoffatTutor6y ago#5
You are very welcome :-)
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