ECONOMIC ANALYSIS SUMMARYFort Churchill Unit 1Boiler 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 ($)0 0 0 0 0 0TOTAL FIXED O&M COST045,20067,80090,40090,400113,000Reagent Cost0 0 0 309,158 327,132 296,328SCR Catalyst / FF Bag Cost0 0 0 0 0 169,500Electric Power Cost0 0 252,419 25,242 277,661 126,210Makeup Water Cost0 0 0 0 0 0TOTAL VARIABLE O&M COST00252,419334,400604,793592,037TOTAL FIRST YEAR O&M COST 0 45,200 320,219 424,800 695,193 705,037FIRST YEAR DEBT SERVICE ($)0 111,359 170,750 468,403 974,564 3,794,816TOTAL FIRST YEAR COST ($)0 156,559 490,970 893,203 1,669,757 4,499,854Power Consumption (MW)0.00.01.10.11.20.6Annual Power Usage (Million kW-Hr/Yr)0.00.05.00.55.62.5CONTROL COST ($/Ton Removed)NOx Removal Rate (%)0.0%49.5%56.7%62.1%65.7%87.4%NOx Removed (Tons/Yr)07398479289821,305First Year Average Control Cost ($/Ton NOx Rem.)02125809631,7013,448Incremental Control Cost ($/Ton NOx Removed)02123,1004,97214,3998,7462-13-24-35-46-5For 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 7:38 AM

# INPUT CALCULATIONS

Fort Churchill Unit 1 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) 10,683 10,683 10,683 10,683 10,683 10,683

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) 1,207 1,207 1,207 1,207 1,207 1,207

Fuel Flow Rate (Lb/Hr) 62,548 62,548 62,548 62,548 62,548 62,548

(Ton/Yr) 139,720 139,720 139,720 139,720 139,720 139,720

(MMBtu/Yr) 5,393,193 5,393,193 5,393,193 5,393,193 5,393,193 5,393,193

Emissions

Uncontrolled NOx (Lb/Hr) 669 669 669 669 669 669

(Lb/MMBtu) 0.55 0.55 0.55 0.55 0.55 0.55

(Lb Moles/Hr) 22.29 22.29 22.29 22.29 22.29 22.29

(Tons/Yr) 1,494 1,494 1,494 1,494 1,494 1,494

NOx Removal Rate (%) 0.0% 49.5% 56.7% 62.1% 65.7% 87.4%

(Lb/Hr) 0 331 379 415 439 584

(Lb Moles/Hr) 0.00 11.02 12.63 13.84 14.64 19.47

(Ton/Yr) 0 739 847 928 982 1,305

NOx Emission Rate (Lb/Hr) 669 338 290 254 229 85

(Lb/MMBtu) 0.55 0.28 0.24 0.21 0.19 0.07

(Ton/Yr) 1,494 755 647 566 512 189

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 0 374 396 332

First Year Reagent Cost ($) 0 0 0 309,158 327,132 296,328

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 7:38 AMInterest RatePlant LifeFort Churchill Unit 1Current OperationYear DateTOTAL FIXEDO&M COSTReagent CostSCR Catalyst / FFBag CostElectricPower CostMakeup Water CostTOTAL VARIABLEO&M COSTDEBT SERVICETOTAL ANNUALCOSTControl Cost($/Ton Removed)0 20131 2014 ---------2 2015 ---------3 2016 ---------4 2017 ---------5 2018 ---------6 2019 ---------7 2020 ---------8 2021 ---------9 2022 ---------10 2023 ---------11 2024 ---------12 2025 ---------13 2026 ---------14 2027 ---------15 2028 ---------16 2029 ---------17 2030 ---------18 2031 ---------19 2032 ---------202033---------Fort Churchill Unit 1LNBYear DateTOTAL FIXEDO&M COSTReagent CostSCR Catalyst / FFBag CostElectricPower CostMakeup Water CostTOTAL VARIABLEO&M COSTDEBT SERVICETOTAL ANNUALCOSTControl Cost($/Ton NOx Removed)0 20131 2014 45,200-----111,359156,5592122 2015 46,104-----111,359157,4632133 2016 47,026-----111,359158,3852144 2017 47,967-----111,359159,3252165 2018 48,926-----111,359160,2852176 2019 49,904-----111,359161,2632187 2020 50,903-----111,359162,2612208 2021 51,921-----111,359163,2792219 2022 52,959-----111,359164,31822210 2023 54,018-----111,359165,37722411 2024 55,099-----111,359166,45722512 2025 56,201-----111,359167,55922713 2026 57,325-----111,359168,68322814 2027 58,471-----111,359169,83023015 2028 59,640-----111,359170,99923116 2029 60,833-----111,359172,19223317 2030 62,050-----111,359173,40923518 2031 63,291-----111,359174,65023619 2032 64,557-----111,359175,91623820203365,848-----111,359177,207240SP/NP Tracy Fort Churchill BART Economic Analysis Model 3of 510/2/2008 7:38 AMFort Churchill Unit 1LNB w/ FGRYear DateTOTAL FIXEDO&M COSTReagent CostSCR Catalyst / FFBag CostElectricPower CostMakeup Water CostTOTAL VARIABLEO&M COSTDEBT SERVICETOTAL ANNUALCOSTControl Cost($/Ton NOx Removed)0 20131 2014 67,800--252,419-252,419170,750490,9705802 2015 69,156--257,468-257,468170,750497,3745873 2016 70,539--262,617-262,617170,750503,9065954 2017 71,950--267,869-267,869170,750510,5706035 2018 73,389--273,227-273,227170,750517,3666116 2019 74,857--278,691-278,691170,750524,2986197 2020 76,354--284,265-284,265170,750531,3696288 2021 77,881--289,951-289,951170,750538,5826369 2022 79,439--295,750-295,750170,750545,93864510 2023 81,027--301,665-301,665170,750553,44265411 2024 82,648--307,698-307,698170,750561,09666312 2025 84,301--313,852-313,852170,750568,90367213 2026 85,987--320,129-320,129170,750576,86668114 2027 87,707--326,531-326,531170,750584,98869115 2028 89,461--333,062-333,062170,750593,27370116 2029 91,250--339,723-339,723170,750601,72371117 2030 93,075--346,518-346,518170,750610,34372118 2031 94,936--353,448-353,448170,750619,13573119 2032 96,835--360,517-360,517170,750628,10274220203398,772--367,727-367,727170,750637,249753Fort Churchill Unit 1LNB w/SNCRYear DateTOTAL FIXEDO&M COSTReagent CostSCR Catalyst / FFBag CostElectricPower CostMakeup Water CostTOTAL VARIABLEO&M COSTDEBT SERVICETOTAL ANNUALCOSTControl Cost($/Ton NOx Removed)0 20131 2014 90,400309,158-25,242-334,400468,403893,2039632 2015 92,208315,341-25,747-341,088468,403901,6999723 2016 94,052321,648-26,262-347,910468,403910,3659814 2017 95,933328,081-26,787-354,868468,403919,2049915 2018 97,852334,642-27,323-361,965468,403928,2201,0016 2019 99,809341,335-27,869-369,204468,403937,4161,0117 2020 101,805348,162-28,427-376,588468,403946,7971,0218 2021 103,841355,125-28,995-384,120468,403956,3641,0319 2022 105,918362,228-29,575-391,803468,403966,1241,04110 2023 108,036369,472-30,166-399,639468,403976,0781,05211 2024 110,197376,862-30,770-407,631468,403986,2321,06312 2025 112,401384,399-31,385-415,784468,403996,5881,07413 2026 114,649392,087-32,013-424,100468,4031,007,1521,08614 2027 116,942399,929-32,653-432,582468,4031,017,9271,09715 2028 119,281407,927-33,306-441,233468,4031,028,9171,10916 2029 121,666416,086-33,972-450,058468,4031,040,1281,12117 2030 124,100424,407-34,652-459,059468,4031,051,5621,13418 2031 126,582432,896-35,345-468,240468,4031,063,2251,14619 2032 129,113441,554-36,052-477,605468,4031,075,1221,159202033131,696450,385-36,773-487,157468,4031,087,2561,172SP/NP Tracy Fort Churchill BART Economic Analysis Model 4of 510/2/2008 7:38 AMFort Churchill Unit 1ROFA w/RotamixYear DateTOTAL FIXEDO&M COSTReagent CostSCR Catalyst / FFBag CostElectricPower CostMakeup Water CostTOTAL VARIABLEO&M COSTDEBT SERVICETOTAL ANNUALCOSTControl Cost($/Ton NOx Removed)0 20131 2014 90,400327,132-277,661-604,793974,5641,669,7571,7012 2015 92,208333,675-283,215-616,889974,5641,683,6611,7153 2016 94,052340,348-288,879-629,227974,5641,697,8431,7304 2017 95,933347,155-294,656-641,812974,5641,712,3091,7445 2018 97,852354,098-300,550-654,648974,5641,727,0641,7606 2019 99,809361,180-306,561-667,741974,5641,742,1141,7757 2020 101,805368,404-312,692-681,096974,5641,757,4651,7908 2021 103,841375,772-318,946-694,718974,5641,773,1231,8069 2022 105,918383,287-325,325-708,612974,5641,789,0941,82310 2023 108,036390,953-331,831-722,784974,5641,805,3851,83911 2024 110,197398,772-338,468-737,240974,5641,822,0011,85612 2025 112,401406,748-345,237-751,985974,5641,838,9501,87313 2026 114,649414,883-352,142-767,024974,5641,856,2371,89114 2027 116,942423,180-359,185-782,365974,5641,873,8711,90915 2028 119,281431,644-366,368-798,012974,5641,891,8571,92716 2029 121,666440,277-373,696-813,972974,5641,910,2031,94617 2030 124,100449,082-381,170-830,252974,5641,928,9161,96518 2031 126,582458,064-388,793-846,857974,5641,948,0031,98519 2032 129,113467,225-396,569-863,794974,5641,967,4712,004202033131,696476,570-404,500-881,070974,5641,987,3302,025Fort Churchill Unit 1LNB w/SCRYear DateTOTAL FIXEDO&M COSTReagent CostSCR Catalyst / FFBag CostElectricPower CostMakeup Water CostTOTAL VARIABLEO&M COSTDEBT SERVICETOTAL ANNUALCOSTControl Cost($/Ton NOx Removed)0 20131 2014 113,000296,328169,500126,210-592,0373,794,8164,499,8543,4482 2015 115,260302,254172,890128,734-603,8783,794,8164,513,9543,4593 2016 117,565308,299176,348131,309-615,9563,794,8164,528,3373,4704 2017 119,917314,465179,875133,935-628,2753,794,8164,543,0083,4815 2018 122,315320,754183,472136,613-640,8403,794,8164,557,9713,4926 2019 124,761327,170187,142139,346-653,6573,794,8164,573,2343,5047 2020 127,256333,713190,885142,133-666,7303,794,8164,588,8033,5168 2021 129,801340,387194,702144,975-680,0653,794,8164,604,6833,5289 2022 132,398347,195198,596147,875-693,6663,794,8164,620,8803,54010 2023 135,045354,139202,568150,832-707,5393,794,8164,637,4013,55311 2024 137,746361,222206,620153,849-721,6903,794,8164,654,2533,56612 2025 140,501368,446210,752156,926-736,1243,794,8164,671,4423,57913 2026 143,311375,815214,967160,064-750,8463,794,8164,688,9743,59314 2027 146,178383,331219,266163,266-765,8633,794,8164,706,8573,60615 2028 149,101390,998223,652166,531-781,1813,794,8164,725,0983,62016 2029 152,083398,818228,125169,862-796,8043,794,8164,743,7043,63517 2030 155,125406,794232,687173,259-812,7403,794,8164,762,6813,64918 2031 158,227414,930237,341176,724-828,9953,794,8164,782,0393,66419 2032 161,392423,229242,088180,259-845,5753,794,8164,801,7833,679202033164,620431,693246,929183,864-862,4863,794,8164,821,9223,695SP/NP Tracy Fort Churchill BART Economic Analysis Model 5of 510/2/2008 7:38 AMECONOMIC ANALYSIS SUMMARYFort Churchill Unit 1Boiler 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 ($)0 0TOTAL FIXED O&M COST0226,000Reagent Cost0 173,511SCR Catalyst / FF Bag Cost0 0Electric Power Cost0 89,352Makeup Water Cost0 25,112TOTAL VARIABLE O&M COST0287,975TOTAL FIRST YEAR O&M COST 0 513,975FIRST YEAR DEBT SERVICE ($)0 2,333,232TOTAL FIRST YEAR COST ($)0 2,847,207Power Consumption (MW) 0.0 0.4Annual Power Usage (Million kW-Hr/Yr)0.01.8CONTROL COST ($/Ton Removed)SO2 Removal Rate (%)43.9%84.8%SO2 Removed (Tons/Yr)01,508First Year Average Control Cost ($/Ton SO2 Rem.)01,889Incremental Control Cost ($/Ton SO2 Removed)Base1,8897-1ParameterCurrentOperationSP/NP Tracy Fort Churchill BART Economic Analysis Model1 of 310/2/2008 8:09 AM

# INPUT CALCULATIONS

Fort Churchill Unit 1 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) 10,683 10,683

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) 1,207 1,207

Fuel Flow Rate (Lb/Hr) 62,548 62,548

(Ton/Yr) 139,720 139,720

(MMBtu/Yr) 5,393,193 5,393,193

Emissions

Uncontrolled SO2 (Lb/Hr) 796 796

(Lb/MMBtu) 0.659 0.659

(Lb Moles/Hr) 12.42 12.42

(Tons/Yr) 1,777 1,777

SO2 Removal Rate (%) 43.9% 84.8%

(Lb/Hr) 349 675

(Ton/Yr) 780 1,508

SO2 Emission Rate (Lb/Hr) 447 121

(Lb/MMBtu) 0.370 0.10

(Ton/Yr) 998 270

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) 0 851

First Year Reagent Cost ($) 0 173,511

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 8:09 AMInterest RatePlant LifeFort Churchill Unit 1Current OperationYear DateTOTAL FIXEDO&M COSTReagent CostSCR Catalyst / FFBag CostElectricPower CostMakeup Water CostTOTAL VARIABLEO&M COSTDEBT SERVICETOTAL ANNUALCOSTControl Cost($/Ton Removed)0 20131 2014 ---------2 2015 ---------3 2016 ---------4 2017 ---------5 2018 ---------6 2019 ---------7 2020 ---------8 2021 ---------9 2022 ---------10 2023 ---------11 2024 ---------12 2025 ---------13 2026 ---------14 2027 ---------15 2028 ---------16 2029 ---------17 2030 ---------18 2031 ---------19 2032 ---------202033---------Fort Churchill Unit 1SDAYear DateTOTAL FIXEDO&M COSTReagent CostSCR Catalyst / FFBag CostElectricPower CostMakeup Water CostTOTAL VARIABLEO&M COSTDEBT SERVICETOTAL ANNUALCOSTControl Cost($/Ton Removed)0 20131 2014 226,000173,511-89,35225,112287,9752,333,2322,847,2071,888.582 2015 230,520176,981-91,13925,614293,7342,333,2322,857,4861,895.403 2016 235,130180,520-92,96226,127299,6092,333,2322,867,9711,902.354 2017 239,833184,131-94,82126,649305,6012,333,2322,878,6661,909.455 2018 244,630187,813-96,71727,182311,7132,333,2322,889,5751,916.686 2019 249,522191,570-98,65227,726317,9472,333,2322,900,7021,924.067 2020 254,513195,401-100,62528,280324,3062,333,2322,912,0511,931.598 2021 259,603199,309-102,63728,846330,7922,333,2322,923,6271,939.279 2022 264,795203,295-104,69029,423337,4082,333,2322,935,4351,947.1010 2023 270,091207,361-106,78430,011344,1562,333,2322,947,4791,955.0911 2024 275,493211,508-108,92030,612351,0402,333,2322,959,7641,963.2412 2025 281,003215,739-111,09831,224358,0602,333,2322,972,2951,971.5513 2026 286,623220,053-113,32031,848365,2222,333,2322,985,0761,980.0314 2027 292,355224,454-115,58632,485372,5262,333,2322,998,1131,988.6815 2028 298,202228,944-117,89833,135379,9762,333,2323,011,4111,997.5016 2029 304,166233,522-120,25633,798387,5762,333,2323,024,9742,006.4917 2030 310,250238,193-122,66134,474395,3272,333,2323,038,8092,015.6718 2031 316,455242,957-125,11435,163403,2342,333,2323,052,9212,025.0319 2032 322,784247,816-127,61735,866411,2992,333,2323,067,3142,034.58202033329,239252,772-130,16936,584419,5252,333,2323,081,9962,044.32SP/NP Tracy Fort Churchill BART Economic Analysis Model 3 of 310/2/2008 8:09 AMECONOMIC ANALYSIS SUMMARYFort Churchill Unit 1Boiler 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%46.04%PM Removed (Tons/Yr)035First Year Average Control Cost ($/Ton PM Rem.)077,232Incremental Control Cost ($/Ton PM Removed)Base77,2328-1ParameterCurrentOperationSP/NP Tracy Fort Churchill BART Economic Analysis Model1 of 410/2/2008 8:05 AM

# INPUT CALCULATIONS

Fort Churchill Unit 1 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) 10,683 10,683

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) 1,207 1,207

Fuel Flow Rate (Lb/Hr) 62,548 62,548

(Ton/Yr) 139,720 139,720

(MMBtu/Yr) 5,393,193 5,393,193

Emissions

Uncontrolled Fly Ash (Lb/Hr) 27 34

(Lb/MMBtu) 0.03 0.028

(Lb Moles/Hr) 0.9 1.1

(Tons/Yr) 60 75

Fly Ash Removal Rate (%) 0.00% 46.04%

(Lb/Hr) -7 15

(Ton/Yr) -15 35

Fly Ash Emission Rate (Lb/Hr) 34 18

(Lb/MMBtu) 0.028 0.015

(Ton/Yr) 75 40

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 8:05 AMInterest RatePlant LifeFort Churchill Unit 1Current OperationYear DateTOTAL FIXEDO&M COSTReagent CostSCR Catalyst / FFBag CostElectricPower CostMakeup Water CostTOTAL VARIABLEO&M COSTDEBT SERVICETOTAL ANNUALCOSTControl Cost($/Ton Removed)0 20131 2014 ---------2 2015 ---------3 2016 ---------4 2017 ---------5 2018 ---------6 2019 ---------7 2020 ---------8 2021 ---------9 2022 ---------10 2023 ---------11 2024 ---------12 2025 ---------13 2026 ---------14 2027 ---------15 2028 ---------16 2029 ---------17 2030 ---------18 2031 ---------19 2032 ---------202033---------Fort Churchill Unit 1Fabric FilterYear DateTOTAL FIXEDO&M COSTReagent CostSCR Catalyst / FFBag CostElectricPower CostMakeup Water CostTOTAL VARIABLEO&M COSTDEBT SERVICETOTAL ANNUALCOSTControl Cost($/Ton Removed)0 20131 2014 180,800-62,40089,352-151,7522,333,2322,665,78477,232.312 2015 184,416-63,64891,139-154,7872,333,2322,672,43577,425.013 2016 188,104-64,92192,962-157,8832,333,2322,679,21977,621.554 2017 191,866-66,21994,821-161,0402,333,2322,686,13977,822.035 2018 195,704-67,54496,717-164,2612,333,2322,693,19778,026.516 2019 199,618-68,89598,652-167,5462,333,2322,700,39678,235.097 2020 203,610-70,273100,625-170,8972,333,2322,707,74078,447.848 2021 207,682-71,678102,637-174,3152,333,2322,715,23078,664.849 2022 211,836-73,112104,690-177,8022,333,2322,722,87078,886.1810 2023 216,073-74,574106,784-181,3582,333,2322,730,66379,111.9511 2024 220,394-76,065108,920-184,9852,333,2322,738,61179,342.2412 2025 224,802-77,587111,098-188,6852,333,2322,746,71979,577.1313 2026 229,298-79,138113,320-192,4582,333,2322,754,98879,816.7214 2027 233,884-80,721115,586-196,3072,333,2322,763,42480,061.1015 2028 238,562-82,335117,898-200,2342,333,2322,772,02780,310.3616 2029 243,333-83,982120,256-204,2382,333,2322,780,80380,564.6217 2030 248,200-85,662122,661-208,3232,333,2322,789,75580,823.9518 2031 253,164-87,375125,114-212,4892,333,2322,798,88581,088.4819 2032 258,227-89,123127,617-216,7392,333,2322,808,19881,358.29202033263,391-90,905130,169-221,0742,333,2322,817,69881,633.51SP/NP Tracy Fort Churchill BART Economic Analysis Model 3of 410/2/2008 8:05 AM