ECONOMIC ANALYSIS SUMMARYTracy Unit 1Boiler 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 ($)0704,0001,040,0002,532,5004,222,76316,940,000Including Other Owner Costs ($)0 1,232,000 1,820,000 4,431,875 7,389,835 21,175,000FIRST YEAR O&M COST ($)Operating Labor ($)0 5,500 8,250 11,000 11,000 13,750Maintenance Material ($)0 11,000 16,500 22,000 22,000 27,500Maintenance Labor ($)0 5,500 8,250 11,000 11,000 13,750Administrative Labor ($)0 0 0 0 0 0TOTAL FIXED O&M COST022,00033,00044,00044,00055,000Reagent Cost0 0 0 19,271 30,252 31,295SCR Catalyst / FF Bag Cost0 0 0 0 0 82,500Electric Power Cost0 0 50,589 5,059 55,648 25,295Makeup Water Cost0 0 0 0 0 0TOTAL VARIABLE O&M COST0050,58924,33085,900139,090TOTAL FIRST YEAR O&M COST 0 22,000 83,589 68,330 129,900194,090FIRST YEAR DEBT SERVICE ($)0 130,661 193,022 470,027 783,736 2,245,736TOTAL FIRST YEAR COST ($)0 152,661 276,611 538,357 913,636 2,439,825Power Consumption (MW)0.00.00.60.10.60.3Annual Power Usage (Million kW-Hr/Yr)0.00.01.00.11.10.5CONTROL COST ($/Ton Removed)NOx Removal Rate (%)0.0%8.4%41.1%31.3%49.1%74.5%NOx Removed (Tons/Yr)015765891138First Year Average Control Cost ($/Ton NOx Rem.)09,8723,6419,31010,06517,701Incremental Control Cost ($/Ton NOx Removed)09,8722,048(14,418)11,39132,4262-13-24-35-46-5For 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 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 Fue l 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 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 1Current OperationYear DateTOTAL FIXEDO&M COSTReagent CostSCR Catalyst / FFBag CostElectricPower CostMakeup Water CostTOTAL VARIABLEO&M COSTDEBT SERVICETOTAL ANNUALCOSTControl Cost($/Ton Removed)0 20131 2014 ---------2 2015 ---------3 2016 ---------4 2017 ---------5 2018 ---------6 2019 ---------7 2020 ---------8 2021 ---------9 2022 ---------10 2023 ---------11 2024 ---------12 2025 ---------13 2026 ---------14 2027 ---------15 2028 ---------16 2029 ---------17 2030 ---------18 2031 ---------19 2032 ---------202033---------Tracy Unit 1LNBYear DateTOTAL FIXEDO&M COSTReagent CostSCR Catalyst / FFBag CostElectricPower CostMakeup Water CostTOTAL VARIABLEO&M COSTDEBT SERVICETOTAL ANNUALCOSTControl Cost($/Ton NOx Removed)0 20131 2014 22,000-----130,661152,6619,8722 2015 22,440-----130,661153,1019,9003 2016 22,889-----130,661153,5509,9294 2017 23,347-----130,661154,0089,9595 2018 23,814-----130,661154,4759,9896 2019 24,290-----130,661154,95110,0207 2020 24,776-----130,661155,43710,0518 2021 25,271-----130,661155,93210,0839 2022 25,777-----130,661156,43810,11610 2023 26,292-----130,661156,95310,14911 2024 26,818-----130,661157,47910,18312 2025 27,354-----130,661158,01510,21813 2026 27,901-----130,661158,56210,25314 2027 28,459-----130,661159,12010,28915 2028 29,029-----130,661159,69010,32616 2029 29,609-----130,661160,27010,36417 2030 30,201-----130,661160,86210,40218 2031 30,805-----130,661161,46610,44119 2032 31,421-----130,661162,08210,48120203332,050-----130,661162,71110,522SP/NP Tracy Fort Churchill BART Economic Analysis Model 3of 510/2/2008 7:37 AMTracy Unit 1LNB w/ FGRYear DateTOTAL FIXEDO&M COSTReagent CostSCR Catalyst / FFBag CostElectricPower CostMakeup Water CostTOTAL VARIABLEO&M COSTDEBT SERVICETOTAL ANNUALCOSTControl Cost($/Ton NOx Removed)0 20131 2014 33,000--50,589-50,589193,022276,6113,6412 2015 33,660--51,601-51,601193,022278,2833,6633 2016 34,333--52,633-52,633193,022279,9883,6854 2017 35,020--53,685-53,685193,022281,7273,7085 2018 35,720--54,759-54,759193,022283,5013,7316 2019 36,435--55,854-55,854193,022285,3113,7557 2020 37,163--56,971-56,971193,022287,1573,7798 2021 37,907--58,111-58,111193,022289,0393,8049 2022 38,665--59,273-59,273193,022290,9603,83010 2023 39,438--60,459-60,459193,022292,9193,85511 2024 40,227--61,668-61,668193,022294,9163,88212 2025 41,031--62,901-62,901193,022296,9543,90813 2026 41,852--64,159-64,159193,022299,0333,93614 2027 42,689--65,442-65,442193,022301,1533,96415 2028 43,543--66,751-66,751193,022303,3163,99216 2029 44,414--68,086-68,086193,022305,5224,02117 2030 45,302--69,448-69,448193,022307,7724,05118 2031 46,208--70,837-70,837193,022310,0674,08119 2032 47,132--72,254-72,254193,022312,4084,11220203348,075--73,699-73,699193,022314,7954,143Tracy Unit 1LNB w/SNCRYear DateTOTAL FIXEDO&M COSTReagent CostSCR Catalyst / FFBag CostElectricPower CostMakeup Water CostTOTAL VARIABLEO&M COSTDEBT SERVICETOTAL ANNUALCOSTControl Cost($/Ton NOx Removed)0 20131 2014 44,00019,271-5,059-24,330470,027538,3579,3102 2015 44,88019,657-5,160-24,817470,027539,7249,3343 2016 45,77820,050-5,263-25,313470,027541,1189,3584 2017 46,69320,451-5,369-25,820470,027542,5409,3835 2018 47,62720,860-5,476-26,336470,027543,9909,4086 2019 48,58021,277-5,585-26,863470,027545,4699,4337 2020 49,55121,703-5,697-27,400470,027546,9789,4598 2021 50,54222,137-5,811-27,948470,027548,5179,4869 2022 51,55322,580-5,927-28,507470,027550,0879,51310 2023 52,58423,031-6,046-29,077470,027551,6889,54111 2024 53,63623,492-6,167-29,659470,027553,3219,56912 2025 54,70823,962-6,290-30,252470,027554,9879,59813 2026 55,80324,441-6,416-30,857470,027556,6869,62714 2027 56,91924,930-6,544-31,474470,027558,4209,65715 2028 58,05725,428-6,675-32,103470,027560,1879,68816 2029 59,21825,937-6,809-32,745470,027561,9919,71917 2030 60,40326,456-6,945-33,400470,027563,8309,75118 2031 61,61126,985-7,084-34,068470,027565,7069,78319 2032 62,84327,524-7,225-34,750470,027567,6209,81620203364,10028,075-7,370-35,445470,027569,5719,850SP/NP Tracy Fort Churchill BART Economic Analysis Model 4of 510/2/2008 7:37 AMTracy Unit 1ROFA w/RotamixYear DateTOTAL FIXEDO&M COSTReagent CostSCR Catalyst / FFBag CostElectricPower CostMakeup Water CostTOTAL VARIABLEO&M COSTDEBT SERVICETOTAL ANNUALCOSTControl Cost($/Ton NOx Removed)0 20131 2014 44,00030,252-55,648-85,900783,736913,63610,0652 2015 44,88030,857-56,761-87,618783,736916,23410,0943 2016 45,77831,474-57,896-89,370783,736918,88410,1234 2017 46,69332,103-59,054-91,157783,736921,58710,1535 2018 47,62732,745-60,235-92,981783,736924,34410,1836 2019 48,58033,400-61,440-94,840783,736927,15610,2147 2020 49,55134,068-62,669-96,737783,736930,02410,2468 2021 50,54234,750-63,922-98,672783,736932,95010,2789 2022 51,55335,445-65,200-100,645783,736935,93510,31110 2023 52,58436,154-66,504-102,658783,736938,97910,34511 2024 53,63636,877-67,834-104,711783,736942,08310,37912 2025 54,70837,614-69,191-106,805783,736945,25010,41413 2026 55,80338,367-70,575-108,942783,736948,48110,44914 2027 56,91939,134-71,986-111,120783,736951,77510,48615 2028 58,05739,917-73,426-113,343783,736955,13610,52316 2029 59,21840,715-74,895-115,610783,736958,56410,56017 2030 60,40341,529-76,393-117,922783,736962,06110,59918 2031 61,61142,360-77,920-120,280783,736965,62710,63819 2032 62,84343,207-79,479-122,686783,736969,26510,67820203364,10044,071-81,068-125,140783,736972,97610,719Tracy Unit 1LNB w/SCRYear DateTOTAL FIXEDO&M COSTReagent CostSCR Catalyst / FFBag CostElectricPower CostMakeup Water CostTOTAL VARIABLEO&M COSTDEBT SERVICETOTAL ANNUALCOSTControl Cost($/Ton NOx Removed)0 20131 2014 55,00031,29582,50025,295-139,0902,245,7362,439,82517,7012 2015 56,10031,92184,15025,800-141,8712,245,7362,443,70717,7293 2016 57,22232,55985,83326,316-144,7092,245,7362,447,66717,7584 2017 58,36633,21187,55026,843-147,6032,245,7362,451,70517,7875 2018 59,53433,87589,30127,380-150,5552,245,7362,455,82517,8176 2019 60,72434,55291,08727,927-153,5662,245,7362,460,02617,8477 2020 61,93935,24392,90828,486-156,6372,245,7362,464,31217,8798 2021 63,17835,94894,76729,055-159,7702,245,7362,468,68417,9109 2022 64,44136,66796,66229,637-162,9662,245,7362,473,14317,94310 2023 65,73037,40098,59530,229-166,2252,245,7362,477,69117,97611 2024 67,04538,148100,56730,834-169,5492,245,7362,482,33018,00912 2025 68,38638,911102,57831,451-172,9402,245,7362,487,06218,04413 2026 69,75339,690104,63032,080-176,3992,245,7362,491,88818,07914 2027 71,14840,483106,72332,721-179,9272,245,7362,496,81118,11415 2028 72,57141,293108,85733,376-183,5262,245,7362,501,83318,15116 2029 74,02342,119111,03434,043-187,1962,245,7362,506,95518,18817 2030 75,50342,961113,25534,724-190,9402,245,7362,512,17918,22618 2031 77,01343,821115,52035,418-194,7592,245,7362,517,50818,26419 2032 78,55444,697117,83036,127-198,6542,245,7362,522,94418,30420203380,12545,591120,18736,849-202,6272,245,7362,528,48818,344SP/NP Tracy Fort Churchill BART Economic Analysis Model 5of 510/2/2008 7:37 AM