ECONOMIC ANALYSIS SUMMARY

Tracy Unit 1 Boiler Design: Riley Stoker Gas/Oil

LNB LNB w/ FGR LNB w/SNCR RO

w/Ro

Case 1 2 3 4 5 NOx Emission Control System None LNB LNB w/ FGR LNB w/SNCR ROFA w

TOTAL INSTALLED CAPITAL COST ($) 0 704,000 1,040,000 2,532,500 4,222Including Other Owner Costs ($) 0 1,232,000 1,820,000 4,431,875 7,389FIRST YEAR O&M COST ($)

Operating Labor ($) 0 5,500 8,250 11,000 11,Maintenance Material ($) 0 11,000 16,500 22,000 22,Maintenance Labor ($) 0 5,500 8,250 11,000 11,Administrative Labor ($) 0 0 0 0 TOTAL FIXED O&M COST 0 22,000 33,000 44,000 44,Reagent Cost 0 0 0 19,271 30,SCR Catalyst / FF Bag Cost 0 0 0 0 Electric Power Cost 0 0 50,589 5,059 55,Makeup Water Cost 0 0 0 0 TOTAL VARIABLE O&M COST 0 0 50,589 24,330 85,TOTAL FIRST YEAR O&M COST 0 22,000 83,589 68,330 129

FIRST YEAR DEBT SERVICE ($) 0 130,661 193,022 470,027 783TOTAL FIRST YEAR COST ($) 0 152,661 276,611 538,357 913

Power Consumption (MW) 0.0 0.0 0.6 0.1 0Annual Power Usage (Million kW-Hr/Yr) 0.0 0.0 1.0 0.1 1

CONTROL COST ($/Ton Removed)

NOx Removal Rate (%) 0.0% 8.4% 41.1% 31.3% 49NOx Removed (Tons/Yr) 0 15 76 58 9First Year Average Control Cost ($/Ton NOx Rem.) 0 9,872 3,641 9,310 10,0Incremental Control Cost ($/Ton NOx Removed) 0 9,872 2,048 (14,418) 11,3

2-1 3-2 4-3 5

For the other owner costs a factor of 1.75 was used for everything except the SCR to represent balance of plant cost, electrical costs, AFUDC etc.For the SCR a factor of 1.25 was used because the material cost of $250/kW from the CH2M HILL database already included the balance of plant and a few other costs

Parameter Current Operation NOx Control

SP/NP Tracy Fort Churchill BART Economic Analysis Model 1 of 5 
INPUT CALCULATIONS 

Tracy Unit 1 Boiler Design: Riley Stoker Gas/Oil

LNB LNB w/ FGR LNB w/SNCR ROFA 

w/Rotamix LNB w/SCR

Case 1 2 3 4 5 6

NOx Emission Control System None LNB LNB w/ FGR LNB w/SNCR ROFA w/Rotamix LNB w/SCR

Unit Design and Coal Characteristics

Type of Unit PC PC PC PC PC PC

Net Power Output (kW) 55,000 55,000 55,000 55,000 55,000 55,000

Net Plant Heat Rate (Btu/kW-Hr) 13,291 13,291 13,291 13,291 13,291 13,291

Boiler Fuel No. 2 Fuel Oil No. 2 Fuel Oil No. 2 Fuel Oil No. 2 Fuel Oil No. 2 Fuel Oil No. 2 Fuel Oil

Fuel Heating Value (Btu/Lb) 19,858 19,858 19,858 19,858 19,858 19,858

Fuel Sulfur Content (wt.%) 0.050% 0.050% 0.050% 0.050% 0.050% 0.050%

Fuel Ash Content (wt.%) 0.038% 0.038% 0.038% 0.038% 0.038% 0.038%

Boiler Heat Input, each (MMBtu/Hr) 731 731 731 731 731 731

Fuel Flow Rate (Lb/Hr) 36,811 36,811 36,811 36,811 36,811 36,811

 (Ton/Yr) 33,859 33,859 33,859 33,859 33,859 33,859

 (MMBtu/Yr) 1,344,748 1,344,748 1,344,748 1,344,748 1,344,748 1,344,748

Emissions

Uncontrolled NOx (Lb/Hr) 201 201 201 201 201 201

 (Lb/MMBtu) 0.28 0.28 0.28 0.28 0.28 0.28

 (Lb Moles/Hr) 6.70 6.70 6.70 6.70 6.70 6.70

 (Tons/Yr) 185 185 185 185 185 185

NOx Removal Rate (%) 0.0% 8.4% 41.1% 31.3% 49.1% 74.5%

 (Lb/Hr) 0 17 83 63 99 150

 (Lb Moles/Hr) 0.00 0.56 2.75 2.09 3.29 4.99

 (Ton/Yr) 0 15 76 58 91 138

NOx Emission Rate (Lb/Hr) 201 184 118 138 102 51

 (Lb/MMBtu) 0.28 0.25 0.16 0.19 0.14 0.07

 (Ton/Yr) 185 169 109 127 94 47

General Plant Data

Annual Operation (Hours/Year) 1,840 1,840 1,840 1,840 1,840 1,840

Annual On-Site Power Plant Capacity Factor 21% 0.21 0.21 0.21 0.21 0.21

Economic Factors

Interest Rate (%) 8.55% 8.55% 8.55% 8.55% 8.55% 8.55%

Discount Rate (%) 9.00% 9.00% 9.00% 9.00% 9.00% 9.00%

Plant Economic Life (Years) 20 20 20 20 20 20

Installed Capital Costs (including owner costs)

NOx Emission Control System ($2007) 0 1,232,000 1,820,000 4,431,875 7,389,835 21,175,000

Total Emission Control Systems ($2007) 0 1,232,000 1,820,000 4,431,875 7,389,835 21,175,000

NOx Emission Control System ($/kW) 0 22 33 81 134 385

Total Emission Control Systems ($/kW) 0 22 33 81 134 385

Total Fixed Operating & Maintenance Costs

Operating Labor ($) 0 5,500 8,250 11,000 11,000 13,750

Maintenance Material ($) 0 11,000 16,500 22,000 22,000 27,500

Maintenance Labor ($) 0 5,500 8,250 11,000 11,000 13,750

Administrative Labor ($) 0 0 0 0 0 0

Total Fixed O&M Cost ($) 0 22,000 33,000 44,000 44,000 55,000

Annual Fixed O&M Cost Escalation Rate (%) 2.00% 2.00% 2.00% 2.00% 2.00% 2.00%

Reagent Cost None None None Urea Urea Anhydrous NH3

Unit Cost ($/Ton) 0.00 0.00 370.00 370.00 370.00 400.00

 ($/Lb) 0.000 0.000 0.185 0.185 0.185 0.200

Molar Stoichiometry 0.00 0.00 0.00 0.45 0.45 1.00

Reagent Purity (Wt.%) 100% 100% 100% 100% 100% 100%

Reagent Usage (Lb/Hr) 0 0 0 57 89 85

First Year Reagent Cost ($) 0 0 0 19,271 30,252 31,295

Annual Reagent Cost Escalation Rate (%) 2.00% 2.00% 2.00% 2.00% 2.00% 2.00%

SCR Catalyst / FF Bag Replacement Cost SCR Catalyst

Annual SCR Catalyst (m3) / No. FF Bags 0 0 0 0 0 28

SCR Catalyst ($/m3) / Bag Cost ($/ea.) 3,000 3,000 3,000 3,000 3,000 3,000

First Year SCR Catalyst / Bag Replace. Cost ($) 0 0 0 0 0 82,500

Annual SCR Catalyst / Bag Cost Esc. Rate (%) 2.00% 2.00% 2.00% 2.00% 2.00% 2.00%

Auxiliary Power Cost

Auxiliary Power Requirement (% of Plant Output) 0.00% 0.00% 1.00% 0.10% 1.10% 0.50%

 (MW) 0.00 0.00 0.55 0.06 0.61 0.28

Unit Cost ($2007/MW-Hr) 50.00 50.00 50.00 50.00 50.00 50.00

First Year Auxiliary Power Cost ($) 0 0 50,589 5,059 55,648 25,295

Annual Power Cost Escalation Rate (%) 2.00% 2.00% 2.00% 2.00% 2.00% 2.00%

Economic factors as per Sierra Pacific 2008 Planning Guidelines

Parameter Comments Current 

Operation

NOx Control

SP/NP Tracy Fort Churchill BART Economic Analysis Model 2 of 5 10/2/2008 7:37 AM
Interest Rate

Plant Life

Tracy Unit 1 Current Operation

Year Date TOTAL FIXED O&M COST Reagent Cost SCR Catalyst / FF Bag Cost Electric Power Cost Makeup Water Cost TOTAL VARIABLE O&M COST DEBT SERVICE TOTAL 

CO

0 20131 2014 - - - - - - - 

 

2 2015 - - - - - - - 

 

3 2016 - - - - - - - 

 

4 2017 - - - - - - - 

 

5 2018 - - - - - - - 

 

6 2019 - - - - - - - 

 

7 2020 - - - - - - - 

 

8 2021 - - - - - - - 

 

9 2022 - - - - - - - 

 

10 2023 - - - - - - - 

 

11 2024 - - - - - - - 

 

12 2025 - - - - - - - 

 

13 2026 - - - - - - - 

 

14 2027 - - - - - - - 

 

15 2028 - - - - - - - 

 

16 2029 - - - - - - - 

 

17 2030 - - - - - - - 

 

18 2031 - - - - - - - 

 

19 2032 - - - - - - - 

 

20 2033 - - - - - - - 

Tracy Unit 1 LNB

Year Date TOTAL FIXED O&M COST Reagent Cost SCR Catalyst / FF Bag Cost Electric Power Cost Makeup Water Cost TOTAL VARIABLE O&M COST DEBT SERVICE TOTAL 

CO

0 20131 2014 22,000 - - - - - 130,661 

 

2 2015 22,440 - - - - - 130,661 

 

3 2016 22,889 - - - - - 130,661 

 

4 2017 23,347 - - - - - 130,661 

 

5 2018 23,814 - - - - - 130,661 

 

6 2019 24,290 - - - - - 130,661 

 

7 2020 24,776 - - - - - 130,661 

 

8 2021 25,271 - - - - - 130,661 

 

9 2022 25,777 - - - - - 130,661 

 

10 2023 26,292 - - - - - 130,661 

 

11 2024 26,818 - - - - - 130,661 

 

12 2025 27,354 - - - - - 130,661 

 

13 2026 27,901 - - - - - 130,661 

 

14 2027 28,459 - - - - - 130,661 

 

15 2028 29,029 - - - - - 130,661 

 

16 2029 29,609 - - - - - 130,661 

 

17 2030 30,201 - - - - - 130,661 

 

18 2031 30,805 - - - - - 130,661 

 

19 2032 31,421 - - - - - 130,661 

 

20 2033 32,050 - - - - - 130,661 

SP/NP Tracy Fort Churchill BART Economic Analysis Model 3 of 5 
Tracy Unit 1 LNB w/ FGR

Year Date TOTAL FIXED O&M COST Reagent Cost SCR Catalyst / FF Bag Cost Electric Power Cost Makeup Water Cost TOTAL VARIABLE O&M COST DEBT SERVICE TOTAL 

CO

0 20131 2014 33,000 - - 50,589 - 50,589 193,022 

 

2 2015 33,660 - - 51,601 - 51,601 193,022 

 

3 2016 34,333 - - 52,633 - 52,633 193,022 

 

4 2017 35,020 - - 53,685 - 53,685 193,022 

 

5 2018 35,720 - - 54,759 - 54,759 193,022 

 

6 2019 36,435 - - 55,854 - 55,854 193,022 

 

7 2020 37,163 - - 56,971 - 56,971 193,022 

 

8 2021 37,907 - - 58,111 - 58,111 193,022 

 

9 2022 38,665 - - 59,273 - 59,273 193,022 

 

10 2023 39,438 - - 60,459 - 60,459 193,022 

 

11 2024 40,227 - - 61,668 - 61,668 193,022 

 

12 2025 41,031 - - 62,901 - 62,901 193,022 

 

13 2026 41,852 - - 64,159 - 64,159 193,022 

 

14 2027 42,689 - - 65,442 - 65,442 193,022 

 

15 2028 43,543 - - 66,751 - 66,751 193,022 

 

16 2029 44,414 - - 68,086 - 68,086 193,022 

 

17 2030 45,302 - - 69,448 - 69,448 193,022 

 

18 2031 46,208 - - 70,837 - 70,837 193,022 

 

19 2032 47,132 - - 72,254 - 72,254 193,022 

 

20 2033 48,075 - - 73,699 - 73,699 193,022 

Tracy Unit 1 LNB w/SNCR

Year Date TOTAL FIXED O&M COST Reagent Cost SCR Catalyst / FF Bag Cost Electric Power Cost Makeup Water Cost TOTAL VARIABLE O&M COST DEBT SERVICE TOTAL 

CO

0 20131 2014 44,000 19,271 - 5,059 - 24,330 470,027 

 

2 2015 44,880 19,657 - 5,160 - 24,817 470,027 

 

3 2016 45,778 20,050 - 5,263 - 25,313 470,027 

 

4 2017 46,693 20,451 - 5,369 - 25,820 470,027 

 

5 2018 47,627 20,860 - 5,476 - 26,336 470,027 

 

6 2019 48,580 21,277 - 5,585 - 26,863 470,027 

 

7 2020 49,551 21,703 - 5,697 - 27,400 470,027 

 

8 2021 50,542 22,137 - 5,811 - 27,948 470,027 

 

9 2022 51,553 22,580 - 5,927 - 28,507 470,027 

 

10 2023 52,584 23,031 - 6,046 - 29,077 470,027 

 

11 2024 53,636 23,492 - 6,167 - 29,659 470,027 

 

12 2025 54,708 23,962 - 6,290 - 30,252 470,027 

 

13 2026 55,803 24,441 - 6,416 - 30,857 470,027 

 

14 2027 56,919 24,930 - 6,544 - 31,474 470,027 

 

15 2028 58,057 25,428 - 6,675 - 32,103 470,027 

 

16 2029 59,218 25,937 - 6,809 - 32,745 470,027 

 

17 2030 60,403 26,456 - 6,945 - 33,400 470,027 

 

18 2031 61,611 26,985 - 7,084 - 34,068 470,027 

 

19 2032 62,843 27,524 - 7,225 - 34,750 470,027 

 

20 2033 64,100 28,075 - 7,370 - 35,445 470,027 

SP/NP Tracy Fort Churchill BART Economic Analysis Model 4 of 5 
Tracy Unit 1 ROFA w/Rotamix

Year Date TOTAL FIXED O&M COST Reagent Cost SCR Catalyst / FF Bag Cost Electric Power Cost Makeup Water Cost TOTAL VARIABLE O&M COST DEBT SERVICE TOTAL 

CO

0 20131 2014 44,000 30,252 - 55,648 - 85,900 783,736 

 

2 2015 44,880 30,857 - 56,761 - 87,618 783,736 

 

3 2016 45,778 31,474 - 57,896 - 89,370 783,736 

 

4 2017 46,693 32,103 - 59,054 - 91,157 783,736 

 

5 2018 47,627 32,745 - 60,235 - 92,981 783,736 

 

6 2019 48,580 33,400 - 61,440 - 94,840 783,736 

 

7 2020 49,551 34,068 - 62,669 - 96,737 783,736 

 

8 2021 50,542 34,750 - 63,922 - 98,672 783,736 

 

9 2022 51,553 35,445 - 65,200 - 100,645 783,736 

 

10 2023 52,584 36,154 - 66,504 - 102,658 783,736 

 

11 2024 53,636 36,877 - 67,834 - 104,711 783,736 

 

12 2025 54,708 37,614 - 69,191 - 106,805 783,736 

 

13 2026 55,803 38,367 - 70,575 - 108,942 783,736 

 

14 2027 56,919 39,134 - 71,986 - 111,120 783,736 

 

15 2028 58,057 39,917 - 73,426 - 113,343 783,736 

 

16 2029 59,218 40,715 - 74,895 - 115,610 783,736 

 

17 2030 60,403 41,529 - 76,393 - 117,922 783,736 

 

18 2031 61,611 42,360 - 77,920 - 120,280 783,736 

 

19 2032 62,843 43,207 - 79,479 - 122,686 783,736 

 

20 2033 64,100 44,071 - 81,068 - 125,140 783,736 

Tracy Unit 1 LNB w/SCR

Year Date TOTAL FIXED O&M COST Reagent Cost SCR Catalyst / FF Bag Cost Electric Power Cost Makeup Water Cost TOTAL VARIABLE O&M COST DEBT SERVICE TOTAL 

CO

0 20131 2014 55,000 31,295 82,500 25,295 - 139,090 2,245,736 2

 

2 2015 56,100 31,921 84,150 25,800 - 141,871 2,245,736 2

 

3 2016 57,222 32,559 85,833 26,316 - 144,709 2,245,736 2

 

4 2017 58,366 33,211 87,550 26,843 - 147,603 2,245,736 2

 

5 2018 59,534 33,875 89,301 27,380 - 150,555 2,245,736 2

 

6 2019 60,724 34,552 91,087 27,927 - 153,566 2,245,736 2

 

7 2020 61,939 35,243 92,908 28,486 - 156,637 2,245,736 2

 

8 2021 63,178 35,948 94,767 29,055 - 159,770 2,245,736 2

 

9 2022 64,441 36,667 96,662 29,637 - 162,966 2,245,736 2

 

10 2023 65,730 37,400 98,595 30,229 - 166,225 2,245,736 2

 

11 2024 67,045 38,148 100,567 30,834 - 169,549 2,245,736 2

 

12 2025 68,386 38,911 102,578 31,451 - 172,940 2,245,736 2

 

13 2026 69,753 39,690 104,630 32,080 - 176,399 2,245,736 2

 

14 2027 71,148 40,483 106,723 32,721 - 179,927 2,245,736 2

 

15 2028 72,571 41,293 108,857 33,376 - 183,526 2,245,736 2

 

16 2029 74,023 42,119 111,034 34,043 - 187,196 2,245,736 2

 

17 2030 75,503 42,961 113,255 34,724 - 190,940 2,245,736 2

 

18 2031 77,013 43,821 115,520 35,418 - 194,759 2,245,736 2

 

19 2032 78,554 44,697 117,830 36,127 - 198,654 2,245,736 2

 

20 2033 80,125 45,591 120,187 36,849 - 202,627 2,245,736 2

SP/NP Tracy Fort Churchill BART Economic Analysis Model 5 of 5