ECONOMIC ANALYSIS SUMMARYFort Churchill Unit 2Boiler Design: Babcock & Wilcox Gas/OilLNB LNB w/ FGR LNB w/SNCRROFAw/RotamixLNB w/SCRCase123456NOx Emission Control SystemNone LNB LNB w/ FGR LNB w/SNCR ROFA w/Rotamix LNB w/SCRTOTAL INSTALLED CAPITAL COST ($)0600,000920,0002,523,7505,250,94028,625,000Including Other Owner Costs ($)0 1,050,000 1,610,000 4,416,563 9,189,145 35,781,250FIRST YEAR O&M COST ($)Operating Labor ($)0 11,300 16,950 22,600 22,600 28,250Maintenance Material ($)0 22,600 33,900 45,200 45,200 56,500Maintenance Labor ($)0 11,300 16,950 22,600 22,600 28,250Administrative Labor ($)0 0 0 0 0 0TOTAL FIXED O&M COST045,20067,80090,40090,400113,000Reagent Cost0 0 0 278,097 296,453 276,989SCR Catalyst / FF Bag Cost0 0 0 0 0 169,500Electric Power Cost0 0 252,419 25,242 277,661 126,210Makeup Water Cost0 0 0 0 0 0TOTAL VARIABLE O&M COST00252,419303,339574,114572,698TOTAL FIRST YEAR O&M COST 0 45,200 320,219 393,739 664,514 685,698FIRST YEAR DEBT SERVICE ($)0 111,359 170,750 468,403 974,564 3,794,816TOTAL FIRST YEAR COST ($)0 156,559 490,970 862,142 1,639,078 4,480,515Power Consumption (MW)0.00.01.10.11.20.6Annual Power Usage (Million kW-Hr/Yr)0.00.05.00.55.62.5CONTROL COST ($/Ton Removed)NOx Removal Rate (%)0.0%45.4%53.2%59.1%63.0%86.4%NOx Removed (Tons/Yr)06427528348901,220First Year Average Control Cost ($/Ton NOx Rem.)02446531,0331,8433,673Incremental Control Cost ($/Ton NOx Removed)02443,0364,49314,1068,5982-13-24-35-46-5For the other owner costs a factor of 1.75 was used for everything except the SCR to represent balance of plantcost, 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 alreadyincluded the balance of plant and a few other costsParameterCurrentOperationNOx ControlSP/NP Tracy Fort Churchill BART Economic Analysis Model1 of 510/2/2008 7:39 AM

# INPUT CALCULATIONS

Fort Churchill Unit 2 Boiler Design: Babcock & Wilcox 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) 113,000 113,000 113,000 113,000 113,000 113,000

Net Plant Heat Rate (Btu/kW-Hr) 10,910 10,910 10,910 10,910 10,910 10,910

Boiler Fuel No. 6 Fuel Oil No. 6 Fuel Oil No. 6 Fuel Oil No. 6 Fuel Oil No. 6 Fue l Oil No. 6 Fuel Oil

Fuel Heating Value (Btu/Lb) 19,300 19,300 19,300 19,300 19,300 19,300

Fuel Sulfur Content (wt.%) 0.637% 0.637% 0.637% 0.637% 0.637% 0.637%

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

Boiler Heat Input, each (MMBtu/Hr) 1,233 1,233 1,233 1,233 1,233 1,233

Fuel Flow Rate (Lb/Hr) 63,877 63,877 63,877 63,877 63,877 63,877

(Ton/Yr) 142,689 142,689 142,689 142,689 142,689 142,689

(MMBtu/Yr) 5,507,791 5,507,791 5,507,791 5,507,791 5,507,791 5,507,791

Emissions

Uncontrolled NOx (Lb/Hr) 632 632 632 632 632 632

(Lb/MMBtu) 0.51 0.51 0.51 0.51 0.51 0.51

(Lb Moles/Hr) 21.07 21.07 21.07 21.07 21.07 21.07

(Tons/Yr) 1,413 1,413 1,413 1,413 1,413 1,413

NOx Removal Rate (%) 0.0% 45.4% 53.2% 59.1% 63.0% 86.4%

(Lb/Hr) 0 287 337 374 398 546

(Lb Moles/Hr) 0.00 9.57 11.22 12.45 13.27 18.20

(Ton/Yr) 0 642 752 834 890 1,220

NOx Emission Rate (Lb/Hr) 632 345 296 259 234 86

(Lb/MMBtu) 0.51 0.28 0.24 0.21 0.19 0.07

(Ton/Yr) 1,413 771 661 578 523 193

General Plant Data

Annual Operation (Hours/Year) 4,468 4,468 4,468 4,468 4,468 4,468

Annual On-Site Power Plant Capacity Factor 51% 0.51 0.51 0.51 0.51 0.51

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 1,050,000 1,610,000 4,416,563 9,189,145 35,781,250

Total Emission Control Systems ($2007) 0 1,050,000 1,610,000 4,416,563 9,189,145 35,781,250

NOx Emission Control System ($/kW) 0 9 14 39 81 317

Total Emission Control Systems ($/kW) 0 9 14 39 81 317

Total Fixed Operating & Maintenance Costs

Operating Labor ($) 0 11,300 16,950 22,600 22,600 28,250

Maintenance Material ($) 0 22,600 33,900 45,200 45,200 56,500

Maintenance Labor ($) 0 11,300 16,950 22,600 22,600 28,250

Administrative Labor ($) 0 0 0 0 0 0

Total Fixed O&M Cost ($) 0 45,200 67,800 90,400 90,400 113,000

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 0 336 359 310

First Year Reagent Cost ($) 0 0 0 278,097 296,453 276,989

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 57

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 0 169,500

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 1.13 0.11 1.24 0.57

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

First Year Auxiliary Power Cost ($) 0 0 252,419 25,242 277,661 126,210

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

Economic factors as per Sierra Pacific 2008 Plannin g Guidelines



# Parameter Comments Current

Operation 

# NOx Control

SP/NP Tracy Fort Churchill BART Economic Analysis M odel 2 of 5 10/2/2008 7:39 AMInterest RatePlant LifeFort Churchill Unit 2Current OperationYear DateTOTAL FIXEDO&M COSTReagent CostSCR Catalyst / FFBag CostElectricPower CostMakeup Water CostTOTAL VARIABLEO&M COSTDEBT SERVICETOTAL ANNUALCOSTControl Cost($/Ton Removed)0 20131 2014 ---------2 2015 ---------3 2016 ---------4 2017 ---------5 2018 ---------6 2019 ---------7 2020 ---------8 2021 ---------9 2022 ---------10 2023 ---------11 2024 ---------12 2025 ---------13 2026 ---------14 2027 ---------15 2028 ---------16 2029 ---------17 2030 ---------18 2031 ---------19 2032 ---------202033---------Fort Churchill Unit 2LNBYear DateTOTAL FIXEDO&M COSTReagent CostSCR Catalyst / FFBag CostElectricPower CostMakeup Water CostTOTAL VARIABLEO&M COSTDEBT SERVICETOTAL ANNUALCOSTControl Cost($/Ton NOx Removed)0 20131 2014 45,200-----111,359156,5592442 2015 46,104-----111,359157,4632453 2016 47,026-----111,359158,3852474 2017 47,967-----111,359159,3252485 2018 48,926-----111,359160,2852506 2019 49,904-----111,359161,2632517 2020 50,903-----111,359162,2612538 2021 51,921-----111,359163,2792549 2022 52,959-----111,359164,31825610 2023 54,018-----111,359165,37725811 2024 55,099-----111,359166,45725912 2025 56,201-----111,359167,55926113 2026 57,325-----111,359168,68326314 2027 58,471-----111,359169,83026515 2028 59,640-----111,359170,99926616 2029 60,833-----111,359172,19226817 2030 62,050-----111,359173,40927018 2031 63,291-----111,359174,65027219 2032 64,557-----111,359175,91627420203365,848-----111,359177,207276SP/NP Tracy Fort Churchill BART Economic Analysis Model 3of 510/2/2008 7:39 AMFort Churchill Unit 2LNB w/ FGRYear DateTOTAL FIXEDO&M COSTReagent CostSCR Catalyst / FFBag CostElectricPower CostMakeup Water CostTOTAL VARIABLEO&M COSTDEBT SERVICETOTAL ANNUALCOSTControl Cost($/Ton NOx Removed)0 20131 2014 67,800--252,419-252,419170,750490,9706532 2015 69,156--257,468-257,468170,750497,3746623 2016 70,539--262,617-262,617170,750503,9066704 2017 71,950--267,869-267,869170,750510,5706795 2018 73,389--273,227-273,227170,750517,3666886 2019 74,857--278,691-278,691170,750524,2986977 2020 76,354--284,265-284,265170,750531,3697078 2021 77,881--289,951-289,951170,750538,5827169 2022 79,439--295,750-295,750170,750545,93872610 2023 81,027--301,665-301,665170,750553,44273611 2024 82,648--307,698-307,698170,750561,09674612 2025 84,301--313,852-313,852170,750568,90375713 2026 85,987--320,129-320,129170,750576,86676714 2027 87,707--326,531-326,531170,750584,98877815 2028 89,461--333,062-333,062170,750593,27378916 2029 91,250--339,723-339,723170,750601,72380017 2030 93,075--346,518-346,518170,750610,34381218 2031 94,936--353,448-353,448170,750619,13582419 2032 96,835--360,517-360,517170,750628,10283520203398,772--367,727-367,727170,750637,249848Fort Churchill Unit 2LNB w/SNCRYear DateTOTAL FIXEDO&M COSTReagent CostSCR Catalyst / FFBag CostElectricPower CostMakeup Water CostTOTAL VARIABLEO&M COSTDEBT SERVICETOTAL ANNUALCOSTControl Cost($/Ton NOx Removed)0 20131 2014 90,400278,097-25,242-303,339468,403862,1421,0332 2015 92,208283,659-25,747-309,406468,403870,0161,0433 2016 94,052289,332-26,262-315,594468,403878,0491,0524 2017 95,933295,119-26,787-321,905468,403886,2421,0625 2018 97,852301,021-27,323-328,344468,403894,5981,0726 2019 99,809307,041-27,869-334,910468,403903,1221,0827 2020 101,805313,182-28,427-341,609468,403911,8171,0938 2021 103,841319,446-28,995-348,441468,403920,6851,1039 2022 105,918325,835-29,575-355,410468,403929,7311,11410 2023 108,036332,351-30,166-362,518468,403938,9571,12511 2024 110,197338,998-30,770-369,768468,403948,3681,13712 2025 112,401345,778-31,385-377,164468,403957,9681,14813 2026 114,649352,694-32,013-384,707468,403967,7591,16014 2027 116,942359,748-32,653-392,401468,403977,7461,17215 2028 119,281366,943-33,306-400,249468,403987,9331,18416 2029 121,666374,282-33,972-408,254468,403998,3231,19617 2030 124,100381,767-34,652-416,419468,4031,008,9221,20918 2031 126,582389,403-35,345-424,747468,4031,019,7321,22219 2032 129,113397,191-36,052-433,242468,4031,030,7591,235202033131,696405,135-36,773-441,907468,4031,042,0061,249SP/NP Tracy Fort Churchill BART Economic Analysis Model 4of 510/2/2008 7:39 AMFort Churchill Unit 2ROFA w/RotamixYear DateTOTAL FIXEDO&M COSTReagent CostSCR Catalyst / FFBag CostElectricPower CostMakeup Water CostTOTAL VARIABLEO&M COSTDEBT SERVICETOTAL ANNUALCOSTControl Cost($/Ton NOx Removed)0 20131 2014 90,400296,453-277,661-574,114974,5641,639,0781,8432 2015 92,208302,382-283,215-585,597974,5641,652,3691,8583 2016 94,052308,430-288,879-597,309974,5641,665,9251,8734 2017 95,933314,598-294,656-609,255974,5641,679,7521,8885 2018 97,852320,890-300,550-621,440974,5641,693,8561,9046 2019 99,809327,308-306,561-633,869974,5641,708,2421,9207 2020 101,805333,854-312,692-646,546974,5641,722,9151,9378 2021 103,841340,531-318,946-659,477974,5641,737,8821,9549 2022 105,918347,342-325,325-672,666974,5641,753,1481,97110 2023 108,036354,289-331,831-686,120974,5641,768,7201,98811 2024 110,197361,375-338,468-699,842974,5641,784,6032,00612 2025 112,401368,602-345,237-713,839974,5641,800,8042,02413 2026 114,649375,974-352,142-728,116974,5641,817,3292,04314 2027 116,942383,494-359,185-742,678974,5641,834,1842,06215 2028 119,281391,163-366,368-757,532974,5641,851,3772,08116 2029 121,666398,987-373,696-772,682974,5641,868,9132,10117 2030 124,100406,966-381,170-788,136974,5641,886,8002,12118 2031 126,582415,106-388,793-803,899974,5641,905,0452,14219 2032 129,113423,408-396,569-819,977974,5641,923,6542,163202033131,696431,876-404,500-836,376974,5641,942,6362,184Fort Churchill Unit 2LNB w/SCRYear DateTOTAL FIXEDO&M COSTReagent CostSCR Catalyst / FFBag CostElectricPower CostMakeup Water CostTOTAL VARIABLEO&M COSTDEBT SERVICETOTAL ANNUALCOSTControl Cost($/Ton NOx Removed)0 20131 2014 113,000276,989169,500126,210-572,6983,794,8164,480,5153,6732 2015 115,260282,528172,890128,734-584,1523,794,8164,494,2293,6843 2016 117,565288,179176,348131,309-595,8353,794,8164,508,2173,6954 2017 119,917293,942179,875133,935-607,7523,794,8164,522,4853,7075 2018 122,315299,821183,472136,613-619,9073,794,8164,537,0383,7196 2019 124,761305,818187,142139,346-632,3053,794,8164,551,8833,7317 2020 127,256311,934190,885142,133-644,9513,794,8164,567,0243,7448 2021 129,801318,173194,702144,975-657,8503,794,8164,582,4683,7569 2022 132,398324,536198,596147,875-671,0073,794,8164,598,2213,76910 2023 135,045331,027202,568150,832-684,4273,794,8164,614,2893,78211 2024 137,746337,648206,620153,849-698,1163,794,8164,630,6793,79612 2025 140,501344,400210,752156,926-712,0783,794,8164,647,3963,80913 2026 143,311351,288214,967160,064-726,3203,794,8164,664,4483,82314 2027 146,178358,314219,266163,266-740,8463,794,8164,681,8403,83815 2028 149,101365,481223,652166,531-755,6633,794,8164,699,5813,85216 2029 152,083372,790228,125169,862-770,7763,794,8164,717,6763,86717 2030 155,125380,246232,687173,259-786,1923,794,8164,736,1333,88218 2031 158,227387,851237,341176,724-801,9163,794,8164,754,9603,89819 2032 161,392395,608242,088180,259-817,9543,794,8164,774,1623,913202033164,620403,520246,929183,864-834,3133,794,8164,793,7493,929SP/NP Tracy Fort Churchill BART Economic Analysis Model 5of 510/2/2008 7:39 AMECONOMIC ANALYSIS SUMMARYFort Churchill Unit 2Boiler Design:SO2 ControlSDACase1 7SO2 Emission Control SystemNone SDATOTAL INSTALLED CAPITAL COST ($)0 22,000,000Including Other Owner Costs ($)0 ---FIRST YEAR O&M COST ($)Operating Labor ($)0 56,500Maintenance Material ($)0 113,000Maintenance Labor ($)0 56,500Administrative Labor ($)0 0TOTAL FIXED O&M COST0226,000Reagent Cost0 177,197SCR Catalyst / FF Bag Cost0 0Electric Power Cost0 89,352Makeup Water Cost0 25,112TOTAL VARIABLE O&M COST0291,662TOTAL FIRST YEAR O&M COST 0 517,662FIRST YEAR DEBT SERVICE ($)0 2,333,232TOTAL FIRST YEAR COST ($)0 2,850,894Power Consumption (MW) 0.0 0.4Annual Power Usage (Million kW-Hr/Yr)0.01.8CONTROL COST ($/Ton Removed)SO2 Removal Rate (%)23.5%84.8%SO2 Removed (Tons/Yr)01,540First Year Average Control Cost ($/Ton SO2 Rem.)01,852Incremental Control Cost ($/Ton SO2 Removed)Base1,8527-1ParameterCurrentOperationSP/NP Tracy Fort Churchill BART Economic Analysis Model1 of 310/2/2008 8:08 AM

# INPUT CALCULATIONS

Fort Churchill Unit 2 Boiler Design:



# SO2 Control

SDA

Case 1 7

SO2 Emission Control System None SDA



# Unit Design and Coal Characteristics

Type of Unit PC PC

Net Power Output (kW) 113,000 113,000

Net Plant Heat Rate (Btu/kW-Hr) 10,910 10,910

Boiler Fuel No. 6 Fuel Oil No. 6 Fuel Oil

Fuel Heating Value (Btu/Lb) 19,300 19,300

Fuel Sulfur Content (wt.%) 0.637% 0.637%

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

Boiler Heat Input, each (MMBtu/Hr) 1,233 1,233

Fuel Flow Rate (Lb/Hr) 63,877 63,877

(Ton/Yr) 142,689 142,689

(MMBtu/Yr) 5,507,791 5,507,791

Emissions

Uncontrolled SO2 (Lb/Hr) 813 813

(Lb/MMBtu) 0.659 0.659

(Lb Moles/Hr) 12.68 12.68

(Tons/Yr) 1,815 1,815

SO2 Removal Rate (%) 23.5% 84.8%

(Lb/Hr) 191 689

(Ton/Yr) 427 1,540

SO2 Emission Rate (Lb/Hr) 621 123

(Lb/MMBtu) 0.504 0.10

(Ton/Yr) 1,388 275

General Plant Data

Annual Operation (Hours/Year) 4,468 4,468

Annual On-Site Power Plant Capacity Factor 51% 0.51

Economic Factors

Interest Rate (%) 8.55% 8.55%

Discount Rate (%) 9.00% 9.00%

Plant Economic Life (Years) 20 20

Installed Capital Costs (including owner costs)

SO2 Emission Control System ($2007) 0 22,000,000

Total Emission Control Systems ($2007) 0 22,000,000

SO2 Emission Control System ($/kW) 0 195

Total Emission Control Systems ($/kW) 0 195

Total Fixed Operating & Maintenance Costs

Operating Labor ($) 0 56,500

Maintenance Material ($) 0 113,000

Maintenance Labor ($) 0 56,500

Administrative Labor ($) 0 0

Total Fixed O&M Cost ($) 0 226,000

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

Reagent Cost None LIme

Unit Cost ($/Ton) 0.00 91.25

($/Lb) 0.000 0.046

Molar Stoichiometry 0.00 1.10

Reagent Purity (Wt.%) 100% 90%

Reagent Usage (Lb/Hr) 0 869

First Year Reagent Cost ($) 0 177,197

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

SCR Catalyst / FF Bag Replacement Cost

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

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

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

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

Auxiliary Power Cost

Auxiliary Power Requirement (% of Plant Output) 0.00% 0.35%

(MW) 0.00 0.40

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

First Year Auxiliary Power Cost ($) 0 89,352

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

Water Cost

Makeup Water Usage (Gpm) 0 77

Unit Price ($/1000 Gallons) 1.22 1.22

First Year Water Cost ($) 0 25,112

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

Economic factors as per Sierra Pacific 2008 Plannin g Guidelines



# Parameter Current

Operation

SP/NP Tracy Fort Churchill BART Economic Analysis M odel 2 of 3 10/2/2008 8:08 AMInterest RatePlant LifeFort Churchill Unit 2Current OperationYear DateTOTAL FIXEDO&M COSTReagent CostSCR Catalyst / FFBag CostElectricPower CostMakeup Water CostTOTAL VARIABLEO&M COSTDEBT SERVICETOTAL ANNUALCOSTControl Cost($/Ton Removed)0 20131 2014 ---------2 2015 ---------3 2016 ---------4 2017 ---------5 2018 ---------6 2019 ---------7 2020 ---------8 2021 ---------9 2022 ---------10 2023 ---------11 2024 ---------12 2025 ---------13 2026 ---------14 2027 ---------15 2028 ---------16 2029 ---------17 2030 ---------18 2031 ---------19 2032 ---------202033---------Fort Churchill Unit 2SDAYear DateTOTAL FIXEDO&M COSTReagent CostSCR Catalyst / FFBag CostElectricPower CostMakeup Water CostTOTAL VARIABLEO&M COSTDEBT SERVICETOTAL ANNUALCOSTControl Cost($/Ton Removed)0 20131 2014 226,000177,197-89,35225,112291,6622,333,2322,850,8941,851.682 2015 230,520180,741-91,13925,614297,4952,333,2322,861,2471,858.403 2016 235,130184,356-92,96226,127303,4452,333,2322,871,8071,865.264 2017 239,833188,043-94,82126,649309,5142,333,2322,882,5791,872.265 2018 244,630191,804-96,71727,182315,7042,333,2322,893,5661,879.396 2019 249,522195,640-98,65227,726322,0182,333,2322,904,7721,886.677 2020 254,513199,553-100,62528,280328,4582,333,2322,916,2031,894.108 2021 259,603203,544-102,63728,846335,0272,333,2322,927,8621,901.679 2022 264,795207,615-104,69029,423341,7282,333,2322,939,7551,909.4010 2023 270,091211,767-106,78430,011348,5632,333,2322,951,8861,917.2711 2024 275,493216,003-108,92030,612355,5342,333,2322,964,2591,925.3112 2025 281,003220,323-111,09831,224362,6442,333,2322,976,8791,933.5113 2026 286,623224,729-113,32031,848369,8972,333,2322,989,7521,941.8714 2027 292,355229,224-115,58632,485377,2952,333,2323,002,8821,950.4015 2028 298,202233,808-117,89833,135384,8412,333,2323,016,2761,959.1016 2029 304,166238,484-120,25633,798392,5382,333,2323,029,9361,967.9717 2030 310,250243,254-122,66134,474400,3892,333,2323,043,8701,977.0218 2031 316,455248,119-125,11435,163408,3972,333,2323,058,0831,986.2519 2032 322,784253,082-127,61735,866416,5642,333,2323,072,5801,995.67202033329,239258,143-130,16936,584424,8962,333,2323,087,3672,005.27SP/NP Tracy Fort Churchill BART Economic Analysis Model 3 of 310/2/2008 8:08 AMECONOMIC ANALYSIS SUMMARYFort Churchill Unit 2Boiler Design:PM ControlFabric FilterCase1 8PM Emission Control SystemNone Fabric FilterTOTAL INSTALLED CAPITAL COST ($)0 22,000,000Including Other Owner Costs ($)0 ---FIRST YEAR O&M COST ($)Operating Labor ($)0 45,200Maintenance Material ($)0 90,400Maintenance Labor ($)0 45,200Administrative Labor ($)0 0TOTAL FIXED O&M COST0180,800Reagent Cost0 0SCR Catalyst / FF Bag Cost0 62,400Electric Power Cost0 89,352Makeup Water Cost0 0TOTAL VARIABLE O&M COST0151,752TOTAL FIRST YEAR O&M COST 0 332,552FIRST YEAR DEBT SERVICE ($)0 2,333,232TOTAL FIRST YEAR COST ($)0 2,665,784Power Consumption (MW) 0.0 0.4Annual Power Usage (Million kW-Hr/Yr)0.01.8CONTROL COST ($/Ton Removed)PM Removal Rate (%)0.00%52.98%PM Removed (Tons/Yr)047First Year Average Control Cost ($/Ton PM Rem.)057,278Incremental Control Cost ($/Ton PM Removed)Base57,2788-1ParameterCurrentOperationSP/NP Tracy Fort Churchill BART Economic Analysis Model1 of 410/2/2008 8:04 AM

# INPUT CALCULATIONS

Fort Churchill Unit 2 Boiler Design:



# PM Control

Fabric Filter

Case 1 8

PM Emission Control System None Fabric Filter



# Unit Design and Coal Characteristics

Type of Unit PC PC

Net Power Output (kW) 113,000 113,000

Net Plant Heat Rate (Btu/kW-Hr) 10,910 10,910

Boiler Fuel No. 6 Fuel Oil No. 6 Fuel Oil

Fuel Heating Value (Btu/Lb) 19,300 19,300

Fuel Sulfur Content (wt.%) 0.637% 0.637%

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

Boiler Heat Input, each (MMBtu/Hr) 1,233 1,233

Fuel Flow Rate (Lb/Hr) 63,877 63,877

(Ton/Yr) 142,689 142,689

(MMBtu/Yr) 5,507,791 5,507,791

Emissions

Uncontrolled Fly Ash (Lb/Hr) 31 39

(Lb/MMBtu) 0.03 0.032

(Lb Moles/Hr) 1.0 1.3

(Tons/Yr) 70 88

Fly Ash Removal Rate (%) 0.00% 52.98%

(Lb/Hr) -8 21

(Ton/Yr) -18 47

Fly Ash Emission Rate (Lb/Hr) 39 18

(Lb/MMBtu) 0.032 0.015

(Ton/Yr) 88 41

General Plant Data

Annual Operation (Hours/Year) 4,468 4,468

Annual On-Site Power Plant Capacity Factor 51% 0.51

Economic Factors

Interest Rate (%) 8.55% 8.55%

Discount Rate (%) 9.00% 9.00%

Plant Economic Life (Years) 20 20

Installed Capital Costs (including owner costs)

NOx Emission Control System ($2007) 0 0

SO2 Emission Control System ($2007) 0 0

PM Emission Control System ($2007) 0 22,000,000

Total Emission Control Systems ($2007) 0 22,000,000

NOx Emission Control System ($/kW) 0 0

SO2 Emission Control System ($/kW) 0 0

PM Emission Control System ($/kW) 0 195

Total Emission Control Systems ($/kW) 0 195

Total Fixed Operating & Maintenance Costs

Operating Labor ($) 0 45,200

Maintenance Material ($) 0 90,400

Maintenance Labor ($) 0 45,200

Administrative Labor ($) 0 0

Total Fixed O&M Cost ($) 0 180,800

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

Reagent Cost None None

Unit Cost ($/Ton) 0.00 0.00

($/Lb) 0.000 0.000

Molar Stoichiometry 0.00 0.00

Reagent Purity (Wt.%) 100% 100%

Reagent Usage (Lb/Hr) 0 0

First Year Reagent Cost ($) 0 0

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

SCR Catalyst / FF Bag Replacement Cost Bags

Annual SCR Catalyst (m3) / No. FF Bags 0 600

SCR Catalyst ($/m3) / Bag Cost ($/ea.) 3,000 104

First Year SCR Catalyst / Bag Replace. Cost ($) 0 62,400

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

Auxiliary Power Cost

Auxiliary Power Requirement (% of Plant Output) 0.00% 0.35%

(MW) 0.00 0.40

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

First Year Auxiliary Power Cost ($) 0 89,352

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

Economic factors as per Sierra Pacific 2008 Planning Guide lines



# Parameter Current

Operation

SP/NP Tracy Fort Churchill BART Economic Analysis M odel 2 of 4 10/2/2008 8:04 AMInterest RatePlant LifeFort Churchill Unit 2Current OperationYear DateTOTAL FIXEDO&M COSTReagent CostSCR Catalyst / FFBag CostElectricPower CostMakeup Water CostTOTAL VARIABLEO&M COSTDEBT SERVICETOTAL ANNUALCOSTControl Cost($/Ton Removed)0 20131 2014 ---------2 2015 ---------3 2016 ---------4 2017 ---------5 2018 ---------6 2019 ---------7 2020 ---------8 2021 ---------9 2022 ---------10 2023 ---------11 2024 ---------12 2025 ---------13 2026 ---------14 2027 ---------15 2028 ---------16 2029 ---------17 2030 ---------18 2031 ---------19 2032 ---------202033---------Fort Churchill Unit 2Fabric FilterYear DateTOTAL FIXEDO&M COSTReagent CostSCR Catalyst / FFBag CostElectricPower CostMakeup Water CostTOTAL VARIABLEO&M COSTDEBT SERVICETOTAL ANNUALCOSTControl Cost($/Ton Removed)0 20131 2014 180,800-62,40089,352-151,7522,333,2322,665,78457,278.392 2015 184,416-63,64891,139-154,7872,333,2322,672,43557,421.303 2016 188,104-64,92192,962-157,8832,333,2322,679,21957,567.064 2017 191,866-66,21994,821-161,0402,333,2322,686,13957,715.745 2018 195,704-67,54496,717-164,2612,333,2322,693,19757,867.406 2019 199,618-68,89598,652-167,5462,333,2322,700,39658,022.097 2020 203,610-70,273100,625-170,8972,333,2322,707,74058,179.878 2021 207,682-71,678102,637-174,3152,333,2322,715,23058,340.809 2022 211,836-73,112104,690-177,8022,333,2322,722,87058,504.9610 2023 216,073-74,574106,784-181,3582,333,2322,730,66358,672.4011 2024 220,394-76,065108,920-184,9852,333,2322,738,61158,843.1912 2025 224,802-77,587111,098-188,6852,333,2322,746,71959,017.3913 2026 229,298-79,138113,320-192,4582,333,2322,754,98859,195.0814 2027 233,884-80,721115,586-196,3072,333,2322,763,42459,376.3215 2028 238,562-82,335117,898-200,2342,333,2322,772,02759,561.1916 2029 243,333-83,982120,256-204,2382,333,2322,780,80359,749.7517 2030 248,200-85,662122,661-208,3232,333,2322,789,75559,942.0818 2031 253,164-87,375125,114-212,4892,333,2322,798,88560,138.2719 2032 258,227-89,123127,617-216,7392,333,2322,808,19860,338.37202033263,391-90,905130,169-221,0742,333,2322,817,69860,542.48SP/NP Tracy Fort Churchill BART Economic Analysis Model 3of 410/2/2008 8:04 AM