星空传媒

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Figure 1 Table of input data
Analysis data	Base case (拢)	Alternative 1 (拢)
Initial investment cost	150 000.00	190 000.00
Annual energy costs	20 000.00	18 000.00
Annual maintenance costs	8000	9000
Study period	15 years	15 years
Discount rate	3路5%	3路5%
All costs in 拢 sterling

Figure 2 Base case calculation table
Cost item	Base date cost (拢)	Year of occurrence	Discount factor	Present value (拢)
Initial investment	150 000.00	Base date	Already in present value	150 000.00
Annual energy cost	19 000.00	Recurring to year 15	11路5174	218 830.81
Annual maintenance cost	8000	Recurring to year 15	11路5174	92 139.29
Total whole life cost				460 970.09

Figure 3 Alternative calculation table
Cost item	Base date cost (拢)	Year of occurrence	Discount factor	Present value (拢)
Initial investment	190 000.00	Base date	Already in present value	190 000.00
Annual energy cost	15 000.00	Recurring to year 15	11路5174	172 761.16
Annual maintenance cost	9500	Recurring to year 15	11路5174	109 415.40
Total whole life cost				472 176.57

Figure 4 Whole life cost example 1
	Base case (拢)	Alternative (拢)
NPV lump sums	150 000.00	190 000.00
NPV energy costs	218 830.81	172 761.16
NPV OM&R costs	92 139.29	109 415.40
NPV recurring costs (price increase)	0	0
Total whole life cost	460 970.09	472 176.57

Figure 5 Whole life cost example 2
	Base case (拢)	Alternative (拢)
NPV lump sums	150 000.00	190 000.00
NPV energy costs	313 148.78	247 222.72
NPV OM&R costs	131 852.12	156 574.39
NPV recurring costs (price increase)	0	0
Total whole life cost	595 000.89	593 797.11

Figure 7 Base case capital costs using BSRIA whole life cost calculator
Lump sums	Base case	听	听
Item description	Cost (拢)	Year	NPV item (拢)
Initial cost instalment 1	155 000.00	1	149 758.45
Initial cost instalment 2	155 000.00	2	144 694.16
Fan replacement	12 000.00	12	7941.4
Capital replacement	60 000.00	15	35 813.44
Residual value	20 000.00	25	-8462.94
Total lump sum NPV		听	329 744.51

Figure 8 Base case recurring costs
Energy costs	Base case	听	听	听	听	听
Item description	Cost/unit (拢)	Units per annum	Total cost (拢)	Start year	End year	NPV item (拢)
Electricity	10 000.00	1	10 000.00	0	25	164 815.15
Gas	10 800.00	1	10 800.00	0	25	178 000.36
Total energy cost NPV						342 815.50

Figure 9 Base case OM&R costs
Item Description	Cost/unit (拢)	Units per annum	Total Cost (拢)	Start year	End year	NPV item (拢)
OM&R costs	6000	1	6000	0	25	98 889.09
Total OM&R cost NPV						98 889.09

Figure 10 Alternative capital costs
Lump sums	Alternative 1	听	听
Item description	Cost (拢)	Year	NPV item (拢)
Initial cost instalment 1	175 000.00	1	169 082.13
Initial cost instalment 2	175 000.00	2	163 364.37
Fan replacement	12 500.00	12	8272.29
Residual value	-3700	25	-1565.64
Total lump sum NPV			339 153.15

Figure 11 Alternative energy costs
Energy costs	Alternative 1	听	听	听	听	听
Item description	Cost/unit (拢)	Units per annum	Total cost (拢)	Start year	End year	NPV item (拢)
Electricity	7000	1	7000	0	25	115 370.60
Gas	9000	1	9000	0	25	148 333.63
Total energy cost NPV						263 704.23

Figure 12 Alternative OM&R costs
Item description	Cost/unit (拢)	Units per annum	Total cost (拢)	Start year	End year	NPV item (拢)
OM&R costs	7000	1	7000	0	25	115 370.60
Total OM&R cost NPV						115 370.60

Figure 13 Calculation totals
	Base case (拢)	Alternative (拢)
NPV lump sums	329 744.51	339 153.15
NPV energy costs	342 815.50	263 704.23
NPV OM&R costs	98 889.09	115 370.60
NPV recurring costs (price increase)	0	0
Total whole life cost	771 449.10	718 227.98