1

2

3

Selective Catalytic Reduction Capital and O&M Costs GGS Unit 1 

4 Capital Costs 

5 SCR Area $ 2,316,000 

6 Civil/SiteWork $ 710,000 

7 Flue Gas System/Ductwork $ 37,022,000 

8 Modifications $ 6,038,000 

9 Catalyst $ 9,216,000 

10 Common Structures/Buildings

11 Urea to Ammonia System 

12 Miscellaneous Mechanical Items $ 513,000 

13 Pipe Rack $ 876,000 

14 Booster Fans

15 Instrumentation and Controls 

16 Allowance for Additional Cranes 

17 Electrical Modifications 

18 Mobilization/Demobilization - 1% of Labor $ 294,000 

19 Cost Due to Overtime - 5-10's $ 4,249,000 

20 Per Diem $ 3,407,000 

21 Spare Parts - 3% of Equipment $ 275,000 

22 Freight $ 1,376,000 

23 General & Administration - 5% of Material and Labor $ 2,574,000 

24 Profit - 10% of Material and Labor $ 5,149,000 

25 EPC Fee - 20% of Total Cost $ 14,803,000 

26 Subtotal $ 88,818,000 

27

28 Other Costs

29 Indirect $ 1,776,000 

30 Escalation $ 17,030,000 

31 Sales/Use Tax $ 1,738,000 

32 Contingency $ 21,525,000 

33 AFUDC $ 10,947,000 

34 Subtotal $ 53,016,000 

35

36 Total Capital Cost at 0.08 lbs/MMBtu $ 141,834,000 

37 Total Capital Cost at 0.05 lbs/MMBtu

38

39 Capital Recovery Factor (CRF)

40 Levelized Capital Cost

41

42 Total Capital Cost (w/ fan sized for SCR only) at 0.08 lbs/MMBtu

43 Levelized Capital Cost (w/ fan sized for SCR only) at 0.08 lbs/MMBtu

Gerald Gentleman Selective Catalytic Reduction BART C
44 Total Capital Cost (w/ fan sized for SCR only) at 0.05 lbs/MMBtu

45 Levelized Capital Cost (w/ fan sized for SCR only) at 0.05 lbs/MMBtu

46

47 O&M Costs

48 Levelized Fixed O&M

49 Levelized Variable O&M at 0.08 lbs/MMBtu

50 Levelized Variable O&M at 0.05 lbs/MMBtu

51 Levelized O&M Cost at 0.08 lbs/MMBtu

52 Levelized O&M Cost at 0.05 lbs/MMBtu

53 Levelized Outage Cost 

54 Total Levelized Capital, Outage and O&M Cost at 0.08 lbs/MMBtu

55 Total Levelized Capital, Outage and O&M Cost at 0.05 lbs/MMBtu

56

57 NOx baseline

58 NOx reduction at 0.08 lbs/MMBtu

59 NOx Reduction at 0.05 lbs/MMBtu

60

61 Cost effectiveness ($/ton) at 0.08 lbs/MMBtu

62 Cost Effectiveness ($/ton) at 0.05 lbs/MMBtu)
EPA

 GGS Unit 2 

 Common 

Facilities 

 Auxiliary 

Power/ID Fans TOTAL STATION TOTAL STATION 

 $ 2,316,000 $ 4,632,000 $ 4,632,000

 $ 710,000 $ 1,420,000 $ 1,420,000

 $ 38,442,000 $ 75,464,000 $ 75,464,000

 $ 6,038,000 $ 12,076,000 $ 12,076,000

 $ 9,216,000 $ 18,432,000 $ 18,432,000

 $ 1,185,000 $ 1,185,000 $ 1,185,000

 $ 11,232,000 $ 11,232,000 $ 11,232,000

 $ 678,000 $ 1,495,000 $ 2,686,000 $ 2,686,000

 $ 876,000 $ 1,752,000 $ 1,752,000

 $ 12,205,000 $ 12,205,000 $ 12,205,000

 $ 2,040,000 $ 2,040,000 $ 2,040,000

 $ 2,000,000 $ 2,000,000 $ 2,000,000

 $ 25,962,000 $ 25,962,000 $ 25,962,000

 $ 307,000 $ 65,000 $ 150,000 $ 816,000 $ 816,000

 $ 4,365,000 $ 935,000 $ 2,244,000 $ 11,793,000 $ 11,793,000

 $ 2,864,000 $ 685,000 $ 2,610,000 $ 9,566,000 $ 9,566,000

 $ 275,000 $ 246,000 $ 536,000 $ 1,332,000 $ 1,332,000

 $ 1,394,000 $ 484,000 $ 1,157,000 $ 4,411,000 $ 4,411,000

 $ 2,662,000 $ 432,000 $ 1,116,000 $ 6,784,000 $ 6,784,000

 $ 5,323,000 $ 865,000 $ 2,232,000 $ 13,569,000 $ 13,569,000

 $ 15,093,000 $ 9,304,000 $ 9,642,000 $ 48,842,000 $ 13,464,880 Revised to 6.5% of capital costs not supported 

 $ 90,559,000 $ 30,968,000 $ 57,854,000 $ 268,199,000 $ 232,821,880

 $ 1,811,000 $ 30,468,000 $ 1,157,000 $ 35,212,000 $ 35,212,000

 $ 18,492,000 $ 13,467,000 $ 11,493,000 $ 60,482,000 0 Not allowed under the Control Cost Manual

 $ 1,763,000 $ 679,000 $ 1,409,000 $ 5,589,000 $ 5,589,000

 $ 22,172,000 $ 14,981,000 $ 14,101,000 $ 72,779,000 $ 51,846,176 Revised to 5% of direct costs + 15% of (direct + 

 $ 13,129,000 $ 8,698,000 $ 8,376,000 $ 41,150,000 0 Not allowed under the Control Cost Manual

 $ 57,367,000 $ 68,293,000 $ 36,536,000 $ 215,212,000 $ 92,647,176

 $ 147,926,000 $ 99,261,000 $ 94,390,000 $ 483,411,000 $ 325,469,000

$ 338,487,760 Increased by 4% to asccount for NOx control at 

0.0820 0.0669 Revised based on a 30 year service life

$ 39,617,000 Appears NPPD's calculation of $42,305,000 sho

 $ 89,130,000 $ 478,151,000 $ 320,209,000

$ 39,755,000 $ 21,427,000 Appears NPPD's calculation of $39,755,000 sho

GGS

 Catalytic Reduction BART Cost Analysis
$ 333,017,360 Increased by 4% to account for NOx control at 

$ 22,285,000

$ 1,466,000 $ 1,197,041 Adjusted based on the ratio of the CRFs

$ 13,049,000 $ 13,049,000

$ 14,484,390 Increased by 11% to account for NOx control at 

$ 14,515,000 $ 14,246,041

$ 15,681,431

$ 1,021,000 $ 833,683

$ 54,291,000 $ 36,507,000

$ 38,800,000

15,288 15,288 Based on a NOx control rate of 0.23 lbs/MMBt

9,970 9,970

11,964

5,445 3,662

3,243
 6.5% of capital costs not supported by vendor quotes

ed under the Control Cost Manual

 5% of direct costs + 15% of (direct + indirect costs) per Control Cost Manual

ed under the Control Cost Manual

by 4% to asccount for NOx control at 0.05 lbs/MMBtu - see separate worksheet

sed on a 30 year service life

PPD's calculation of $42,305,000 should be $39,617,000

PPD's calculation of $39,755,000 should be $39,186,000
by 4% to account for NOx control at 0.05 lbs/MMBtu - see separate worksheet

ased on the ratio of the CRFs

by 11% to account for NOx control at 0.05 lbs/MMBtu - see separate worksheet

a NOx control rate of 0.23 lbs/MMBtu using combustion controls, and a heat input of 15,175.5 MMBtu/hr