ECONOMIC ANALYSIS SUMMARYTracy Unit 2Boiler Design: Riley Stoker 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 ($)0880,0001,232,0002,642,5004,579,09025,450,000Including Other Owner Costs ($)0 1,540,000 2,156,000 4,624,375 8,013,408 31,812,500FIRST YEAR O&M COST ($)Operating Labor ($)0 8,300 12,450 16,600 16,600 20,750Maintenance Material ($)0 16,600 24,900 33,200 33,200 41,500Maintenance Labor ($)0 8,300 12,450 16,600 16,600 20,750Administrative Labor ($)0 0 0 0 0 0TOTAL FIXED O&M COST033,20049,80066,40066,40083,000Reagent Cost0 0 0 123,572 118,977 132,781SCR Catalyst / FF Bag Cost0 0 0 0 0 124,500Electric Power Cost0 0 119,968 11,997 131,965 59,984Makeup Water Cost0 0 0 0 0 0TOTAL VARIABLE O&M COST00119,968135,568250,942317,266TOTAL FIRST YEAR O&M COST 0 33,200 169,768 201,968 317,342 400,266FIRST YEAR DEBT SERVICE ($)0 163,326 228,657 490,443 849,870 3,373,907TOTAL FIRST YEAR COST ($)0 196,526 398,425 692,411 1,167,212 3,774,172Power Consumption (MW)0.00.00.80.10.90.4Annual Power Usage (Million kW-Hr/Yr)0.00.02.40.22.61.2CONTROL COST ($/Ton Removed)NOx Removal Rate (%)0.0%38.7%51.4%54.0%52.0%85.2%NOx Removed (Tons/Yr)0266353371357585First Year Average Control Cost ($/Ton NOx Rem.)07401,1301,8673,2706,453Incremental Control Cost ($/Ton NOx Removed)07402,31916,207(34,440)11,4422-13-24-35-46-5For 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 7:37 AM

# INPUT CALCULATIONS

Tracy Unit 2 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) 83,000 83,000 83,000 83,000 83,000 83,000

Net Plant Heat Rate (Btu/kW-Hr) 12,096 12,096 12,096 12,096 12,096 12,096

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) 1,004 1,004 1,004 1,004 1,004 1,004

Fuel Flow Rate (Lb/Hr) 52,021 52,021 52,021 52,021 52,021 52,021

(Ton/Yr) 75,191 75,191 75,191 75,191 75,191 75,191

(MMBtu/Yr) 2,902,363 2,902,363 2,902,363 2,902,363 2,902,363 2,902,363

Emissions

Uncontrolled NOx (Lb/Hr) 475 475 475 475 475 475

(Lb/MMBtu) 0.47 0.47 0.47 0.47 0.47 0.47

(Lb Moles/Hr) 15.82 15.82 15.82 15.82 15.82 15.82

(Tons/Yr) 686 686 686 686 686 686

NOx Removal Rate (%) 0.0% 38.7% 51.4% 54.0% 52.0% 85.2%

(Lb/Hr) 0 184 244 257 247 405

(Lb Moles/Hr) 0.00 6.12 8.13 8.55 8.23 13.48

(Ton/Yr) 0 266 353 371 357 585

NOx Emission Rate (Lb/Hr) 475 291 231 218 228 70

(Lb/MMBtu) 0.47 0.29 0.23 0.22 0.23 0.07

(Ton/Yr) 686 421 334 316 329 102

General Plant Data

Annual Operation (Hours/Year) 2,891 2,891 2,891 2,891 2,891 2,891

Annual On-Site Power Plant Capacity Factor 33% 0.33 0.33 0.33 0.33 0.33

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 1,540,000 2,156,000 4,624,375 8,013,408 31,812,500

Total Emission Control Systems ($2007) 0 1,540,000 2,156,000 4,624,375 8,013,408 31,812,500

NOx Emission Control System ($/kW) 0 19 26 56 97 383

Total Emission Control Systems ($/kW) 0 19 26 56 97 383

Total Fixed Operating & Maintenance Costs

Operating Labor ($) 0 8,300 12,450 16,600 16,600 20,750

Maintenance Material ($) 0 16,600 24,900 33,200 33,200 41,500

Maintenance Labor ($) 0 8,300 12,450 16,600 16,600 20,750

Administrative Labor ($) 0 0 0 0 0 0

Total Fixed O&M Cost ($) 0 33,200 49,800 66,400 66,400 83,000

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 0 231 222 230

First Year Reagent Cost ($) 0 0 0 123,572 118,977 132,781

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 42

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 0 124,500

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 0.83 0.08 0.91 0.42

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

First Year Auxiliary Power Cost ($) 0 0 119,968 11,997 131,965 59,984

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 7:37 AMInterest RatePlant LifeTracy Unit 2Current OperationYear DateTOTAL FIXEDO&M COSTReagent CostSCR Catalyst / FFBag CostElectricPower CostMakeup Water CostTOTAL VARIABLEO&M COSTDEBT SERVICETOTAL ANNUALCOSTControl Cost($/Ton Removed)0 20131 2014 ---------2 2015 ---------3 2016 ---------4 2017 ---------5 2018 ---------6 2019 ---------7 2020 ---------8 2021 ---------9 2022 ---------10 2023 ---------11 2024 ---------12 2025 ---------13 2026 ---------14 2027 ---------15 2028 ---------16 2029 ---------17 2030 ---------18 2031 ---------19 2032 ---------202033---------Tracy Unit 2LNBYear DateTOTAL FIXEDO&M COSTReagent CostSCR Catalyst / FFBag CostElectricPower CostMakeup Water CostTOTAL VARIABLEO&M COSTDEBT SERVICETOTAL ANNUALCOSTControl Cost($/Ton NOx Removed)0 20131 2014 33,200-----163,326196,5267402 2015 33,864-----163,326197,1907433 2016 34,541-----163,326197,8687454 2017 35,232-----163,326198,5587485 2018 35,937-----163,326199,2637506 2019 36,655-----163,326199,9827537 2020 37,389-----163,326200,7157568 2021 38,136-----163,326201,4637599 2022 38,899-----163,326202,22576110 2023 39,677-----163,326203,00376411 2024 40,471-----163,326203,79776712 2025 41,280-----163,326204,60677013 2026 42,106-----163,326205,43277414 2027 42,948-----163,326206,27477715 2028 43,807-----163,326207,13378016 2029 44,683-----163,326208,00978317 2030 45,576-----163,326208,90378718 2031 46,488-----163,326209,81479019 2032 47,418-----163,326210,74479420203348,366-----163,326211,692797SP/NP Tracy Fort Churchill BART Economic Analysis Model 3of 510/2/2008 7:37 AMTracy Unit 2LNB w/ FGRYear DateTOTAL FIXEDO&M COSTReagent CostSCR Catalyst / FFBag CostElectricPower CostMakeup Water CostTOTAL VARIABLEO&M COSTDEBT SERVICETOTAL ANNUALCOSTControl Cost($/Ton NOx Removed)0 20131 2014 49,800--119,968-119,968228,657398,4251,1302 2015 50,796--122,368-122,368228,657401,8201,1393 2016 51,812--124,815-124,815228,657405,2841,1494 2017 52,848--127,311-127,311228,657408,8161,1595 2018 53,905--129,857-129,857228,657412,4191,1706 2019 54,983--132,455-132,455228,657416,0951,1807 2020 56,083--135,104-135,104228,657419,8431,1918 2021 57,205--137,806-137,806228,657423,6671,2019 2022 58,349--140,562-140,562228,657427,5671,21210 2023 59,516--143,373-143,373228,657431,5451,22411 2024 60,706--146,241-146,241228,657435,6031,23512 2025 61,920--149,165-149,165228,657439,7421,24713 2026 63,158--152,149-152,149228,657443,9641,25914 2027 64,422--155,192-155,192228,657448,2701,27115 2028 65,710--158,295-158,295228,657452,6621,28416 2029 67,024--161,461-161,461228,657457,1421,29617 2030 68,365--164,691-164,691228,657461,7121,30918 2031 69,732--167,984-167,984228,657466,3731,32319 2032 71,127--171,344-171,344228,657471,1281,33620203372,549--174,771-174,771228,657475,9771,350Tracy Unit 2LNB w/SNCRYear DateTOTAL FIXEDO&M COSTReagent CostSCR Catalyst / FFBag CostElectricPower CostMakeup Water CostTOTAL VARIABLEO&M COSTDEBT SERVICETOTAL ANNUALCOSTControl Cost($/Ton NOx Removed)0 20131 2014 66,400123,572-11,997-135,568490,443692,4111,8672 2015 67,728126,043-12,237-138,280490,443696,4501,8783 2016 69,083128,564-12,481-141,045490,443700,5711,8894 2017 70,464131,135-12,731-143,866490,443704,7731,9015 2018 71,873133,758-12,986-146,744490,443709,0601,9126 2019 73,311136,433-13,245-149,678490,443713,4321,9247 2020 74,777139,162-13,510-152,672490,443717,8921,9368 2021 76,273141,945-13,781-155,725490,443722,4411,9489 2022 77,798144,784-14,056-158,840490,443727,0811,96110 2023 79,354147,679-14,337-162,017490,443731,8141,97411 2024 80,941150,633-14,624-165,257490,443736,6411,98712 2025 82,560153,646-14,917-168,562490,443741,5652,00013 2026 84,211156,719-15,215-171,933490,443746,5872,01414 2027 85,895159,853-15,519-175,372490,443751,7102,02715 2028 87,613163,050-15,830-178,880490,443756,9362,04116 2029 89,366166,311-16,146-182,457490,443762,2662,05617 2030 91,153169,637-16,469-186,106490,443767,7022,07118 2031 92,976173,030-16,798-189,828490,443773,2472,08519 2032 94,836176,491-17,134-193,625490,443778,9032,10120203396,732180,020-17,477-197,498490,443784,6732,116SP/NP Tracy Fort Churchill BART Economic Analysis Model 4of 510/2/2008 7:37 AMTracy Unit 2ROFA w/RotamixYear DateTOTAL FIXEDO&M COSTReagent CostSCR Catalyst / FFBag CostElectricPower CostMakeup Water CostTOTAL VARIABLEO&M COSTDEBT SERVICETOTAL ANNUALCOSTControl Cost($/Ton NOx Removed)0 20131 2014 66,400118,977-131,965-250,942849,8701,167,2123,2702 2015 67,728121,356-134,604-255,961849,8701,173,5593,2873 2016 69,083123,784-137,296-261,080849,8701,180,0333,3054 2017 70,464126,259-140,042-266,302849,8701,186,6363,3245 2018 71,873128,784-142,843-271,628849,8701,193,3713,3436 2019 73,311131,360-145,700-277,060849,8701,200,2413,3627 2020 74,777133,987-148,614-282,601849,8701,207,2493,3828 2021 76,273136,667-151,586-288,253849,8701,214,3963,4029 2022 77,798139,400-154,618-294,018849,8701,221,6873,42210 2023 79,354142,188-157,710-299,899849,8701,229,1233,44311 2024 80,941145,032-160,865-305,897849,8701,236,7083,46412 2025 82,560147,933-164,082-312,015849,8701,244,4453,48613 2026 84,211150,892-167,364-318,255849,8701,252,3363,50814 2027 85,895153,909-170,711-324,620849,8701,260,3863,53115 2028 87,613156,988-174,125-331,113849,8701,268,5963,55416 2029 89,366160,127-177,608-337,735849,8701,276,9703,57717 2030 91,153163,330-181,160-344,490849,8701,285,5123,60118 2031 92,976166,596-184,783-351,379849,8701,294,2253,62519 2032 94,836169,928-188,479-358,407849,8701,303,1123,65020203396,732173,327-192,248-365,575849,8701,312,1773,676Tracy Unit 2LNB w/SCRYear DateTOTAL FIXEDO&M COSTReagent CostSCR Catalyst / FFBag CostElectricPower CostMakeup Water CostTOTAL VARIABLEO&M COSTDEBT SERVICETOTAL ANNUALCOSTControl Cost($/Ton NOx Removed)0 20131 2014 83,000132,781124,50059,984-317,2663,373,9073,774,1726,4532 2015 84,660135,437126,99061,184-323,6113,373,9073,782,1786,4673 2016 86,353138,146129,53062,407-330,0833,373,9073,790,3436,4814 2017 88,080140,909132,12063,656-336,6853,373,9073,798,6726,4955 2018 89,842143,727134,76364,929-343,4183,373,9073,807,1676,5106 2019 91,639146,601137,45866,227-350,2873,373,9073,815,8326,5257 2020 93,471149,533140,20767,552-357,2933,373,9073,824,6716,5408 2021 95,341152,524143,01168,903-364,4383,373,9073,833,6866,5559 2022 97,248155,575145,87270,281-371,7273,373,9073,842,8826,57110 2023 99,193158,686148,78971,687-379,1623,373,9073,852,2616,58711 2024 101,177161,860151,76573,120-386,7453,373,9073,861,8286,60312 2025 103,200165,097154,80074,583-394,4803,373,9073,871,5876,62013 2026 105,264168,399157,89676,074-402,3693,373,9073,881,5406,63714 2027 107,369171,767161,05477,596-410,4173,373,9073,891,6936,65415 2028 109,517175,202164,27579,148-418,6253,373,9073,902,0496,67216 2029 111,707178,706167,56180,731-426,9983,373,9073,912,6116,69017 2030 113,941182,280170,91282,345-435,5383,373,9073,923,3856,70918 2031 116,220185,926174,33083,992-444,2483,373,9073,934,3756,72719 2032 118,544189,645177,81785,672-453,1333,373,9073,945,5846,747202033120,915193,438181,37387,386-462,1963,373,9073,957,0186,766SP/NP Tracy Fort Churchill BART Economic Analysis Model 5of 510/2/2008 7:37 AMECONOMIC ANALYSIS SUMMARYTracy Unit 2Boiler Design:SO2 ControlSDACase1 7SO2 Emission Control SystemNone SDATOTAL INSTALLED CAPITAL COST ($)0 17,500,000Including Other Owner Costs ($)0 ---FIRST YEAR O&M COST ($)Operating Labor ($)0 41,500Maintenance Material ($)0 83,000Maintenance Labor ($)0 41,500Administrative Labor ($)0 0TOTAL FIXED O&M COST0166,000Reagent Cost0 93,375SCR Catalyst / FF Bag Cost0 0Electric Power Cost0 57,816Makeup Water Cost0 12,028TOTAL VARIABLE O&M COST0163,220TOTAL FIRST YEAR O&M COST 0 329,220FIRST YEAR DEBT SERVICE ($)0 1,855,980TOTAL FIRST YEAR COST ($)0 2,185,200Power Consumption (MW) 0.0 0.4Annual Power Usage (Million kW-Hr/Yr)0.01.2CONTROL COST ($/Ton Removed)SO2 Removal Rate (%)50.8%84.8%SO2 Removed (Tons/Yr)0811First Year Average Control Cost ($/Ton SO2 Rem.)02,693Incremental Control Cost ($/Ton SO2 Removed)Base2,6937-1ParameterCurrentOperationSP/NP Tracy Fort Churchill BART Economic Analysis Model1 of 310/2/2008 8:10 AM

# INPUT CALCULATIONS

Tracy 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) 83,000 83,000

Net Plant Heat Rate (Btu/kW-Hr) 12,096 12,096

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) 1,004 1,004

Fuel Flow Rate (Lb/Hr) 52,021 52,021

(Ton/Yr) 75,191 75,191

(MMBtu/Yr) 2,902,363 2,902,363

Emissions

Uncontrolled SO2 (Lb/Hr) 662 662

(Lb/MMBtu) 0.659 0.659

(Lb Moles/Hr) 10.33 10.33

(Tons/Yr) 956 956

SO2 Removal Rate (%) 50.8% 84.8%

(Lb/Hr) 336 561

(Ton/Yr) 486 811

SO2 Emission Rate (Lb/Hr) 325 100

(Lb/MMBtu) 0.324 0.10

(Ton/Yr) 470 145

General Plant Data

Annual Operation (Hours/Year) 2,891 2,891

Annual On-Site Power Plant Capacity Factor 33% 0.33

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 17,500,000

Total Emission Control Systems ($2007) 0 17,500,000

SO2 Emission Control System ($/kW) 0 211

Total Emission Control Systems ($/kW) 0 211

Total Fixed Operating & Maintenance Costs

Operating Labor ($) 0 41,500

Maintenance Material ($) 0 83,000

Maintenance Labor ($) 0 41,500

Administrative Labor ($) 0 0

Total Fixed O&M Cost ($) 0 166,000

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) 0 708

First Year Reagent Cost ($) 0 93,375

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% 0.48%

(MW) 0.00 0.40

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

First Year Auxiliary Power Cost ($) 0 57,816

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

Water Cost

Makeup Water Usage (Gpm) 0 57

Unit Price ($/1000 Gallons) 1.22 1.22

First Year Water Cost ($) 0 12,028

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 8:10 AMInterest RatePlant LifeTracy Unit 2Current OperationYear DateTOTAL FIXEDO&M COSTReagent CostSCR Catalyst / FFBag CostElectricPower CostMakeup Water CostTOTAL VARIABLEO&M COSTDEBT SERVICETOTAL ANNUALCOSTControl Cost($/Ton Removed)0 20131 2014 ---------2 2015 ---------3 2016 ---------4 2017 ---------5 2018 ---------6 2019 ---------7 2020 ---------8 2021 ---------9 2022 ---------10 2023 ---------11 2024 ---------12 2025 ---------13 2026 ---------14 2027 ---------15 2028 ---------16 2029 ---------17 2030 ---------18 2031 ---------19 2032 ---------202033---------Tracy Unit 2SDAYear DateTOTAL FIXEDO&M COSTReagent CostSCR Catalyst / FFBag CostElectricPower CostMakeup Water CostTOTAL VARIABLEO&M COSTDEBT SERVICETOTAL ANNUALCOSTControl Cost($/Ton Removed)0 20131 2014 166,00093,375-57,81612,028163,2201,855,9802,185,2002,693.402 2015 169,32095,243-58,97212,269166,4841,855,9802,191,7842,701.523 2016 172,70697,148-60,15212,514169,8141,855,9802,198,5002,709.804 2017 176,16199,091-61,35512,765173,2101,855,9802,205,3512,718.245 2018 179,684101,072-62,58213,020176,6741,855,9802,212,3382,726.856 2019 183,277103,094-63,83413,280180,2081,855,9802,219,4652,735.647 2020 186,943105,156-65,11013,546183,8121,855,9802,226,7352,744.608 2021 190,682107,259-66,41213,817187,4881,855,9802,234,1502,753.749 2022 194,495109,404-67,74114,093191,2381,855,9802,241,7132,763.0610 2023 198,385111,592-69,09514,375195,0631,855,9802,249,4282,772.5711 2024 202,353113,824-70,47714,663198,9641,855,9802,257,2972,782.2712 2025 206,400116,100-71,88714,956202,9431,855,9802,265,3232,792.1613 2026 210,528118,422-73,32515,255207,0021,855,9802,273,5102,802.2514 2027 214,739120,791-74,79115,560211,1421,855,9802,281,8612,812.5515 2028 219,033123,207-76,28715,871215,3651,855,9802,290,3792,823.0416 2029 223,414125,671-77,81316,189219,6721,855,9802,299,0662,833.7517 2030 227,882128,184-79,36916,513224,0661,855,9802,307,9282,844.6818 2031 232,440130,748-80,95616,843228,5471,855,9802,316,9672,855.8219 2032 237,089133,363-82,57517,180233,1181,855,9802,326,1872,867.18202033241,831136,030-84,22717,523237,7801,855,9802,335,5912,878.77SP/NP Tracy Fort Churchill BART Economic Analysis Model 3 of 310/2/2008 8:10 AMECONOMIC ANALYSIS SUMMARYTracy Unit 2Boiler Design:PM ControlFabric FilterCase1 8PM Emission Control SystemNone Fabric FilterTOTAL INSTALLED CAPITAL COST ($)0 17,500,000Including Other Owner Costs ($)0 ---FIRST YEAR O&M COST ($)Operating Labor ($)0 33,200Maintenance Material ($)0 66,400Maintenance Labor ($)0 33,200Administrative Labor ($)0 0TOTAL FIXED O&M COST0132,800Reagent Cost0 0SCR Catalyst / FF Bag Cost0 45,760Electric Power Cost0 57,816Makeup Water Cost0 0TOTAL VARIABLE O&M COST0103,576TOTAL FIRST YEAR O&M COST 0 236,376FIRST YEAR DEBT SERVICE ($)0 1,855,980TOTAL FIRST YEAR COST ($)0 2,092,356Power Consumption (MW) 0.0 0.4Annual Power Usage (Million kW-Hr/Yr)0.01.2CONTROL COST ($/Ton Removed)PM Removal Rate (%)0.00%76.85%PM Removed (Tons/Yr)072First Year Average Control Cost ($/Ton PM Rem.)028,952Incremental Control Cost ($/Ton PM Removed)Base28,9528-1ParameterCurrentOperationSP/NP Tracy Fort Churchill BART Economic Analysis Model1 of 410/2/2008 8:06 AM

# INPUT CALCULATIONS

Tracy 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) 83,000 83,000

Net Plant Heat Rate (Btu/kW-Hr) 12,096 12,096

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) 1,004 1,004

Fuel Flow Rate (Lb/Hr) 52,021 52,021

(Ton/Yr) 75,191 75,191

(MMBtu/Yr) 2,902,363 2,902,363

Emissions

Uncontrolled Fly Ash (Lb/Hr) 52 65

(Lb/MMBtu) 0.06 0.065

(Lb Moles/Hr) 1.7 2.2

(Tons/Yr) 75 94

Fly Ash Removal Rate (%) 0.00% 76.85%

(Lb/Hr) -13 50

(Ton/Yr) -19 72

Fly Ash Emission Rate (Lb/Hr) 65 15

(Lb/MMBtu) 0.065 0.015

(Ton/Yr) 94 22

General Plant Data

Annual Operation (Hours/Year) 2,891 2,891

Annual On-Site Power Plant Capacity Factor 33% 0.33

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 17,500,000

Total Emission Control Systems ($2007) 0 17,500,000

NOx Emission Control System ($/kW) 0 0

SO2 Emission Control System ($/kW) 0 0

PM Emission Control System ($/kW) 0 211

Total Emission Control Systems ($/kW) 0 211

Total Fixed Operating & Maintenance Costs

Operating Labor ($) 0 33,200

Maintenance Material ($) 0 66,400

Maintenance Labor ($) 0 33,200

Administrative Labor ($) 0 0

Total Fixed O&M Cost ($) 0 132,800

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 0 440

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

First Year SCR Catalyst / Bag Replace. Cost ($) 0 45,760

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

Auxiliary Power Cost

Auxiliary Power Requirement (% of Plant Output) 0.00% 0.48%

(MW) 0.00 0.40

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

First Year Auxiliary Power Cost ($) 0 57,816

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 8:06 AMInterest RatePlant LifeTracy Unit 2Current OperationYear DateTOTAL FIXEDO&M COSTReagent CostSCR Catalyst / FFBag CostElectricPower CostMakeup Water CostTOTAL VARIABLEO&M COSTDEBT SERVICETOTAL ANNUALCOSTControl Cost($/Ton Removed)0 20131 2014 ---------2 2015 ---------3 2016 ---------4 2017 ---------5 2018 ---------6 2019 ---------7 2020 ---------8 2021 ---------9 2022 ---------10 2023 ---------11 2024 ---------12 2025 ---------13 2026 ---------14 2027 ---------15 2028 ---------16 2029 ---------17 2030 ---------18 2031 ---------19 2032 ---------202033---------Tracy Unit 2Fabric FilterYear DateTOTAL FIXEDO&M COSTReagent CostSCR Catalyst / FFBag CostElectricPower CostMakeup Water CostTOTAL VARIABLEO&M COSTDEBT SERVICETOTAL ANNUALCOSTControl Cost($/Ton Removed)0 20131 2014 132,800-45,76057,816-103,5761,855,9802,092,35628,952.392 2015 135,456-46,67558,972-105,6481,855,9802,097,08429,017.813 2016 138,165-47,60960,152-107,7601,855,9802,101,90629,084.534 2017 140,928-48,56161,355-109,9161,855,9802,106,82429,152.595 2018 143,747-49,53262,582-112,1141,855,9802,111,84129,222.016 2019 146,622-50,52363,834-114,3561,855,9802,116,95829,292.827 2020 149,554-51,53365,110-116,6431,855,9802,122,17829,365.058 2021 152,545-52,56466,412-118,9761,855,9802,127,50229,438.719 2022 155,596-53,61567,741-121,3561,855,9802,132,93229,513.8610 2023 158,708-54,68769,095-123,7831,855,9802,138,47129,590.5011 2024 161,882-55,78170,477-126,2591,855,9802,144,12129,668.6812 2025 165,120-56,89771,887-128,7841,855,9802,149,88429,748.4213 2026 168,423-58,03573,325-131,3591,855,9802,155,76229,829.7614 2027 171,791-59,19574,791-133,9871,855,9802,161,75829,912.7215 2028 175,227-60,37976,287-136,6661,855,9802,167,87329,997.3416 2029 178,731-61,58777,813-139,4001,855,9802,174,11130,083.6617 2030 182,306-62,81979,369-142,1881,855,9802,180,47430,171.7018 2031 185,952-64,07580,956-145,0311,855,9802,186,96430,261.5019 2032 189,671-65,35782,575-147,9321,855,9802,193,58330,353.10202033193,465-66,66484,227-150,8911,855,9802,200,33530,446.53SP/NP Tracy Fort Churchill BART Economic Analysis Model 3of 410/2/2008 8:06 AM