Space Age Windmills
You have been hired at Space Age Windmills, a new
company which constructs and operates powergenerating windmills, mainly on the West Coast.
Your job as analyst is to determine the costs to build
and operate a variety of proposed sites and make
recommendations on which projects to proceed with.
CS&E 1111 ExAddtlProblems
Write a formula in cell calc!D5, which can be copied down, to calculate the
total cost of building the windmill generator. The cost to construct a
windmill generator is described in the first bullet of the description above.
1. $50,000 + Costs of Foundation & Supports
2. $50,000 + $15,000
3. Tcosts!C9 + LOOKUP(c5,Tcosts!A2:A7,Tcosts!C2:C7)
4. Do we need any dollar signs?
5. Tcosts!C9 + LOOKUP(c5,Tcosts!A$2:A$7,Tcosts!C$2:C$7)
Question 1
CS&E 1111 ExAddtlProblems
Write a formula in cell calc!E5, which can be copied down to calculate the
number of kilowatts per hour this windmill will generate. The amount of
electricity a windmill can generated is described in the second bullet of the
description above.
1. Elevation * 0.1 for each foot of elevation + (if ocean-add 30 kw)
2. 1025 * 0.1 + if(terrain = “ocean”, add 30 kw)
3. IF(C5 = “F”, B5 * 0.1 + 30, B5 *0.1)
4. Do we need any dollar signs?
5. NO
Question 2
CS&E 1111 ExAddtlProblems
Write a formula in cell calc!F5, which can be copied down, to calculate the
net operating profit per year. You are given the operating profit per kilowatt
(refer to cell using its ranged name), the number of hours this windmill will
be in operation per year and you have already calculated the kilowatts
generated per hour.
1. Profit per kw * # of hrs in operation * kw generated per hr.
(Rounded to the nearest whole number)
2. $0.25 * 7,300 * 102.5 (result needs to be rounded)
3. =round(pkwh * C1 * E5, 0)
4. Do we need any dollar signs?
5. =round(pkwh * C$1 * E5, 0)
Question 3
CS&E 1111 ExAddtlProblems
The venture capital group that will lend your company the money for this
project will only consider windmills that pay for themselves in 2 years or less.
They want you to do a simple calculation and determine (TRUE/FALSE) if the
cost to build this windmill is less than or equal to two year’s operating profits.
Write this formula in cell calc!G5 so that it can be copied down the column.
1. Is the generator cost < = 2 years of revenue (T/F)?
2. $65,000 < = $187.063 * 2
3. D5 <= F5 * 2
4. Do we need any dollar signs?
5. NO
Question 4
CS&E 1111 ExAddtlProblems
The venture capitalists also have limited resources. Even if a project yields a
high return they only are willing to fund windmill generators that cost less
than the average of the proposed sites. Write an Excel formula in cell calc!H5
to determine (True/False) if this windmill’s construction cost is less than the
average construction cost.
1. Is the generator cost < Average Costs of all sites (T/F)?
2. $65,000 < Average price of all generators
3. D5 < AVERAGE(D5:D13)
4. Do we need any dollar signs?
5. D5 < AVERAGE(D$5:D$13)
Question 5
CS&E 1111 ExAddtlProblems
Finally, you need to determine your recommendation of whether the company
should build this windmill. The company should build the windmill if it is paid
back within 2 years and if its construction cost is less than the average
construction cost. Write a formula in cell calc!I5, which can be copied down,
to determine (TRUE/FALSE) if this company should build this windmill.
1. Can the generator be paid off in 2 yrs. and is it less then the
average cost of all generators(T/F)?
2. $65,000 < = $187.063 * 2 AND
$65,000 < Average price of all generators
3. =AND(G5:H5)
4. Do we need any dollar signs?
5. NO
Question 6
CS&E 1111 ExAddtlProblems
Write a formula in cell calc!F16, to determine (TRUE/FALSE) if none of the
windmill sites of those given is recommended.
1. None Of construct
2. NOT(OR(…..))
3. =NOT(OR(I5:I13)
4. Do we need any dollar signs?
5. NO
Question 7
CS&E 1111 ExAddtlProblems
Write a formula in cell calc!F17 to determine the number of Sandy(type A)
sites in this survey.
1. What do we use to count a range based on a criteria?
2. =COUNTIF(range, criteria)
3. =COUNTIF(C5:C13,”A”)
4. Do we need any dollar signs?
5. NO
Question 8
CS&E 1111 ExAddtlProblems
Write a formula in cell calc!F18 to determine the total cost to build all those
windmills that you have recommended. This formula should work even if the
criteria and/or revenue values change later.
1. What do we use to sum a range based on a criteria?
2. =SUMIF(criteria range, criteria, sum range)
3. =SUMIF(I5:I13,True, D5:D13)
4. Do we need any dollar signs?
5. NO
Question 9
CS&E 1111 ExAddtlProblems