1 2 3 4 5 6 7 8 9 **Capacity Fuel**  Unique ID Name Plant Code**Unit MW gross** **Fuel Avg NOx**  **Avg SO2 2011NOx**  126_1 Sundt 126 1 108.8 Natural gas 0.156 0.003 0.153 126_2 Sundt 126 2 108.8 Natural gas 0.17 0.003 0.146 126_3 Sundt 126 3 113.6 Natural gas 0.16 0.003 0.161 113_1 Cholla 113 1 113.6 C 0.188 0.118 0.22 8223_1 Springerville 8223 1 424.8 C 0.182 0.218 0.18 8223_2 Springerville 8223 2 424.8 C 0.19 0.185 0.188 Notes: 1 1 1

Notes 1 Determined from data reported to US EPA and available on the Clean Air Markets Division Web Site

2This is an estimate for 2008-2011 period based upon reported heat input, capacity and heat rate in NEEDS v4.10 3 From NEEDS v4.10

Economic Assumptions: Capital Recovery Factor 9.44%

Interest Rate 7.00% Period (yrs) 20

Insurance 0.30%From Integrated Planning Model ver 4.10 documentationpage 8-11 Property Taxes 0.90%From Integrated Planning Model ver 4.10 documentationpage 8-11 **2008-2010 Reported Avg 2011 Reported Rates** 10 11 12 13 14 **2008-2011 2011 SO2**  **model NOx model SO2**  **Capac. Fctr Heat Rate**  **Burner Controls**  **BART or RP Wkbk**  **split?** 0.003 0.155 9% 11289T RP 3 0.003 0.164 10% 11020T RP 3 0.004 0.16 16% 11319T RP 3 0.202 0.22 na 86% 10964T LNC2 RP 3 0.253 0.181 **na** 65% 10001T LNC1 RP 3 0.167 0.19 **na** 70% 9893T LNC1 RP 3 1 1 1 2 3 Determined from data reported to US EPA and available on the Clean Air Markets Division Web Site This is an estimate for 2008-2011 period based upon reported heat input, capacity and heat rate in NEEDS v4.10

From Integrated Planning Model ver 4.10 documentationpage 8-11 From Integrated Planning Model ver 4.10 documentationpage 8-11 **modelled rate 2011 Reported Rates** NA 7 8 10 **2008-2011 Reported**  **2008-2010 Reported Avg** Notes on model NOx (past tense = Phase 1 work) **Avg NOx Avg NOx**  **Avg SO2 2011 SO2** 
**Use 2008-2011 avg** 0.079 0.104 0.003 0.003
**Use 2008-2011 avg** 0.081 0.106 0.003 0.003
**Use 2008-2011 avg** 0.082 0.108 0.003 0.004 **Use 2011 only, post-coal switch** 0.182 0.175 0.118 0.202 **Use 2008-2011 avg** 0.208 0.193 0.218 0.253 **Use 2008-2011 avg** 0.183 0.188 0.185 0.167 1 1 112

**model SO2**

### Variable **Designation Units** 

Unique ID 113_1 Plant Cholla Unit 1 Unit Size A MW 113.6 Gross Heat Rate C Btu/kwhr 10964 NOx Rate D lb/Mmbtu 0.22 CF J CF 0.86 Type of Coal F prb Coal Factor G 1.05 Retrofit Factor B 1 HR Factor H 1.0964 Heat Input I Btu/hr 1.25E+09 CF J 0.86 NOx Removal Eff K % 77.3% NOx Removal factor L 0.97 NOx Removed M lb/hr 2.12E+02 Urea rate (100%) N lb/hr 148 Steam Required O lb/hr 167 Aux. Power P % 0.59 Urea Cost (50% sol) R $/ton 400 Catalyst Cost S $/m3 8000 Aux Power Cost T $/kwh 0.06 Steam Cost U $/Klb 4 Operating Labor Rate V $/hr 60

**Capital Cost Calculation (includes equipment, installation, buildings, foundations,electrical, minor physical/chemical ww treatment and retrofit difficulty)**

BMR ($) = SCR 15,829,729 BMF ($) = base reagent preparation cost 1,563,986 BMA ($) = APH (SO@> 3lb/Mmbtu) BMB ($) = fans/aux power 2,942,585 BM ($) = Total base cost 20,336,300 BM ($/KW) = 179 **Total Project Cost** A1 = 10% of BM ($) = Eng. and Construction management 2,033,630 A2 = 10% of BM ($) = Labor adjustment 2,033,630 A3 = 10% of BM ($) =Contractor profit/fees 2,033,630**CECC ($) =** Cap., Eng. and management 26,437,190

**CECC ($/kw) =** 233
B1 = 5% of CECCowners cost

- B2 = 6% of CECC + B1AFUDC (2yr cycle)

-

**TPC ($) = Total project cost**  26,437,190 **TPC ($/kw) =** 233

**Fixed O&M Cost** FOMO ($/kw-yr) = fixed O&M - additional labor cost 0.5 FOMM ($/kw-yr) = fixed O&M - additional maintenace, mtl and labor cost 2.6

**FOM ($/kw-yr) = Total Fixed O&M Cost**  3.19
**Variable O&M Cost** VOMR ($/MWhr) = Variable O&M - urea 0.52 VOMW ($/MWhr) = Variable O&M - catalyst disposal 0.36 VOMP ($/MWhr)= Variable O&M Power 0.36 VOMM ($/MWhr) = Variable O&M - steam 0.006

**VOM ($/MWhr) = Total Variable O&M Cost**  1.24

CR = 9.44% Property Taxes and Insurance 1.20%

Total Charge Rate 10.64% **Cost of control - $/Ton**CF 86% Control Efficiency 77% **Uncontrolled Rate** (lb/Mbtu*Heat Input)/1000000 NOx Rate (lb/hr) Lb/hr*8760*CF/2000 274 NOx Rate (lb/MMBtu) 0.220

NOx (TPY) 1032 **Controlled Rate** NOx Rate (lb/hr) 62.3 NOx Rate (lb/MMBtu) TPC*CR+(FOM*MW)+VOM(MW*8760)*CF 0.05NOx (TPY) 235

**Tons/Year Removed 798**  Annualized capital cost $2,812,730

Fixed O&M $362,400 Variable O&M $1,062,737 **Total Cost/year $4,237,867**  **$/Ton $5,313** 

### Value

8223_1 8223_2 Springerville Springerville

1 2 424.8 424.8 10001 9893 0.181 0.19 0.65 0.7 prb prbblends are treated as PRB to be conservative 1.05 1.05 Bit=1; PRB=1.05; Lig=1.07 1 1 1 = typical retrofit 1.0001 0.9893C/10000 4.25E+09 4.20E+09A*C*1000 0.65 0.7read from Plant Data table 72.4% 73.7%for NOx>0.5lb/Mbtu=90%; <.5 = (NOx-0.05)/NOx 0.90 0.92equals K/80% based upon 8/10/12 email from Sargent & Lundy, and See pdf pg 10/79 at http://www.epa.gov/airmarkets/progsregs/epa-ipm/docs/SuppDoc410MATS.pdf 5.57E+02 5.88E+02 D*I/10^6*K 389 411 M*0.525*60/46*1.01/.99 439 464N*1.13 0.57 0.570.56*(G*H)^0.43 400 400 8000 8000 0.06 0.06 4 4 60 60Total Labor Cost

**Capital Cost Calculation (includes equipment, installation, buildings, foundations,electrical, minor physical/chemical ww treatment and retrofit difficulty)**
48,309,986 48,001,528 1,991,401 2,019,268
4,926,504 4,904,089
55,227,890 54,924,886 130 129

5,522,789 5,492,489 5,522,789 5,492,489 5,522,789 5,492,48971,796,257 71,402,351

169 168

- -

- - 71,796,257 71,402,351 169 168

0.1 0.1 0.7 0.7

0.85 0.85

0.37 0.39 0.45 0.43See pdf pg 10/79 at http://www.epa.gov/airmarkets/progsregs/epa-ipm/docs/SuppDoc410MATS.pdf 0.34 0.34This is not included in the S&L calculations, but should be 0.004 0.004

1.17 1.16
9.44% 9.44% 1.20% 1.20% 10.64% 10.64%

65% 70% 72% 74%

769 798 0.181 0.190 2189 2448

212.4 210.1 0.05 0.05605 644

**1584 1804**  $7,638,614 $7,596,705 $362,400 $362,400 $2,819,409 $3,017,114 **$10,820,423 $10,976,219**  **$6,829 $6,085** 

### Calculation

equals K/80% based upon 8/10/12 email from Sargent & Lundy, and See pdf pg 10/79 at http://www.epa.gov/airmarkets/progsregs/epa-ipm/docs/SuppDoc410MATS.pdf

http://www.epa.gov/airmarkets/progsregs/epa-ipm/BaseCasev410.html#documentationSee pdf pg 10/79 at http://www.epa.gov/airmarkets/progsregs/epa-ipm/docs/SuppDoc410MATS.pdf

## SCR for Oil/Gas units
**BASE UNIT (200MW) TPC ($/KW)**  **FOM ($/kw-yr) VOM (mills/kwhr)**  75 1.08 0.12



### Variable **Designation Units**  **Value**
Unique ID 126_1 126_2 Plant Sundt Sundt Unit 1 2 Unit Size A MW 108.8 108.8 Gross Heat Rate C Btu/kwhr 11289 11020 NOx Rate D lb/Mmbtu 0.155 0.164 CF J % 9.00% 10.00%
Retrofit Factor B 1 1 Heat Input I Btu/hr 1.23E+09 1.20E+09
NOx Removal Eff K % 80% 80%
NOx Removed M lb/hr 1.52E+02 1.57E+02 Urea rate (100%) N lb/hr 106 110 Steam Required O lb/hr 120 124 Aux. Power P % 0.50 0.50 Urea Cost (50% sol) R $/ton 500 500 Catalyst Cost S $/m3 8000 8000 Aux Power Cost T $/kwh 0.06 0.06 Steam Cost U $/Klb 4 4 Operating Labor Rate V $/hr 60 60

**TPC ($) =** 10,097,888 10,097,888 **TPC ($/kw) =** 93 93 **Fixed O&M Cost FOM ($/kw-yr) =**  1.34 1.34 **Variable O&M Cost VOM ($/MWhr) =**  0.12 0.12CR = 9.44% 9.44% Property Taxes and Insurance 1.20% 1.20%

Total Charge Rate 10.64% 10.64% **Cost of control - $/Ton**

CF 9% 10% Control Efficiency 80% 80% **Uncontrolled Rate** NOx Rate (lb/hr) 190 197 NOx Rate (lb/MMBtu) 0.155 0.164

NOx (TPY) **75 86**  **Controlled Rate** NOx Rate (lb/hr) 38.1 39.3 NOx Rate (lb/MMBtu) 0.03 0.03

NOx (TPY) 15 17 **Tons/Year Removed 60**  **69** Annualized capital cost $1,074,344 $1,074,344

Fixed O&M $145,410 $145,410 Variable O&M $10,293 $11,437 **Total Cost/year $1,230,047**  **$1,231,190 $/Ton**  **$20,488 $17,869** 

### SCALING FACTORS (TPC and FOM) **(base cost)*(200/MW)^0.35** 

### % NOx Reduction 80



### Calculation
126_3 Sundt 3 113.6 user input 11319 user input 0.16 user input 16.00% user input

1 1 = typical retrofit

1.29E+09 A*C*1000
80% user input

1.65E+02 D*I/10^6*K/100 115 M*0.525*60/46*1.01/.99 130 N*1.13 0.50 500 8000 0.06 4 60 Total Labor Cost

10,385,267 **Total project cost** 91
1.32 **Total Fixed O&M Cost**

0.12 **Total Variable O&M Cost**9.44% 1.20% 10.64%

16% 80%

206 (lb/Mbtu*Heat Input)/1000000 0.16 **144** Lb/hr*8760*CF/2000

41.1 0.03 29

**115** $1,104,919 $149,548 $19,107 **$1,273,573** **TPC*CR+(FOM*MW)+VOM(MW*8760)*CF** **$11,042**http://www.epa.gov/airmarkets/progsregs/epa-ipm/BaseCasev410.html#documentation(lb/Mbtu*Heat Input)/1000000

**TPC*CR+(FOM*MW)+VOM(MW*8760)*CF**http://www.epa.gov/airmarkets/progsregs/epa-ipm/BaseCasev410.html#documentation

### Variable **Designation Units**  **Value**

Unique ID 113_1 126_1 126_2 Plant Cholla Sundt Sundt Unit 1 1 2 Unit Size A MW 113.6 108.8 108.8 Heat Rate C Btu/kwhr 10964 11289 11020 NOx Rate D lb/Mmbtu 0.22 0.155 0.164 CF I % 0.86 0.09 0.1 Type of fuel prb prb prb Coal Factor F 1.05 1.05 1.05 Retrofit Factor B 1 1 1 HR Factor G 1.0964 1.1289 1.102 Heat Input H Btu/hr 1.25E+09 1.23E+09 1.20E+09
NOx Removal Eff J % 30% 20% 20% NOx Removed K lb/hr 8.22E+01 3.81E+01 3.93E+01 Urea rate (100%) L lb/hr 214.44 99.33 102.59 Water Required M lb/hr 1930 894 923 Aux. Power N % 0.05 0.05 0.05 Dilution water rate O (1000gph) 0.232 0.107 0.111 Urea Cost (50% sol) P $/ton 500 500 500 Aux Power Cost Q $/kwh 0.06 0.06 0.06 Dilution water Cost R $/Kgal 1 1 1 Operating Labor Rate S $/hr 60 60 60

**Includes equipment, inatallation,buildings,electrical, retrofit difficulty**

BMS ($) = 1881573 1802070 1802070 BMA ($) = BMB ($) = BM ($) = 1,881,573 1,802,070 1,802,070 BM ($/KW) = 17 17 17 **Total Project Cost** A1 = 5% of BM ($) = 94079 90104 90104 A2 = 5% of BM ($) = 94079 90104 90104 A3 = 5% of BM ($) = 94079 90104 90104 **CECC ($) =** 2,163,810 2,072,381 2,072,381**CECC ($/kw) =** 19 19 19

B1 = 5% of CECC 108,190 103,619 103,619 **TPC ($) =** 2,272,000 2,176,000 2,176,000 **TPC ($/kw) =** 20 20 20

**Fixed O&M Cost** FOMO ($/kw-yr) = 0.54930 0.57353 0.57353 FOMM ($/kw-yr) = 0.20 0.20 0.20

**FOM ($/kw-yr) =** 0.75 0.77 0.77
**Variable O&M Cost** VOMR ($/MWhr) = 0.94 0.46 0.47 VOMM ($/MWhr) = 0.0005 0.0006 0.0006 VOMP ($/MWhr)= Variable O&M Power 0.03 0.03 0.03 **VOM ($/MWhr) =** 0.97 0.49 0.50

CR = 9.44% 9.44% 9.44% Property Taxes and Insurance 1.20% 1.20% 1.20%

Total Charge Rate 10.64% 10.64% 10.64% **Cost of control - $/Ton**CF 86% 9% 10% Control Efficiency 30% 20% 20% **Uncontrolled Rate** NOx Rate (lb/hr) 274 190 197 NOx Rate (lb/MMBtu) 0.22 0.155 0.164

NOx (TPY) **1032 75**  **86 Controlled Rate**  NOx Rate (lb/hr) 192 152 157 NOx Rate (lb/MMBtu) 0.15 0.12 0.13

NOx (TPY) 723 60 69 **Tons/Year Removed 310**  **15 17**  Annualized capital cost $241,725 $231,511 $231,511Fixed O&M $84,979 $84,025 $84,025

Variable O&M $833,896 $41,776 $47,847 **Total Cost/year $1,160,599**  **$357,311 $363,382**  **$/Ton $3,748**  **$23,806 $21,096** 126_3 8223_1 8223_2

Sundt Springerville Springerville 3 1 2 113.6 424.8 424.8 11319 10001 9893 0.16 0.181 0.19 0.16 0.65 0.7 prb prb prb PRB assumed for conservativeness 1.05 1.05 1.05 Bit=1; PRB=1.05; Lig=1.07; gas=1 1 1 1 1 = typical retrofit 1.1319 1.0001 0.9893C/10000 1.29E+09 4.25E+09 4.20E+09A*C*1000
20% 30% 30%30% - coal; 20% - gas 4.11E+01 2.31E+02 2.40E+02 D*H/10^6*j 107.34 601.80 624.90K/UF/46*30; For CFB and SO2>3 then UF=0.25; otherwise UF=0.15 966 5416 5624L*9 0.05 0.05 0.05 0.116 0.650 0.675 M*0.12/1000 http://www.epa.gov/airmarkets/progsregs/epa-ipm/BaseCasev410.html#documentation 500 500 500 0.06 0.06 0.06 Note: Capital Cost equations were modified to be a constant $20/kWe because in my judgement S&L's scaling will result in overprediction of cost for small units 1 1 1 60 60 60Total Labor Cost

1881573 7036025 7036025SNCR APH (SO@> 3lb/Mmbtu); 65000*B*(A*G)^.78 BOP
1,881,573 7,036,025 7,036,025 Total base cost 17 17 17

94079 351801 351801 Eng. and Construction management 94079 351801 351801 Labor adjustment 94079 351801 351801Contractor profit/fees
2,163,810 8,091,429 8,091,429 Cap., Eng. and management19 19 19

108,190 404,571 404,571 owners cost 2,272,000 8,496,000 8,496,000 **Total project cost** 20 20 20 **It was assumed that SNCR capital cost was $20/kW for all applications**

0.54930 0.14689 0.14689fixed O&M - additional labor cost 0.20 0.20 0.20fixed O&M - additional maintenace, mtl and labor cost

0.75 0.35 0.35**Total Fixed O&M Cost**

0.47 0.71 0.74Variable O&M - urea 0.0005 0.0001 0.0001Variable O&M - dilution water 0.03 0.03 0.03This is not included in the S&L calculations, but should be

0.50 0.74 0.77**Total Variable O&M Cost**
9.44% 9.44% 9.44% 1.20% 1.20% 1.20% 10.64% 10.64% 10.64%

16% 65% 70% 20% 30% 30%(lb/Mbtu*Heat Input)/1000000 206 769 798 Lb/hr*8760*CF/2000 0.16 0.181 0.19 **144 2189**  **2448**
165 538 559 0.13 0.13 0.13TPC*CR+(FOM*MW)+VOM(MW*8760)*CF 115 1532 1714
**29 657**  **734** $241,725 $903,914 $903,914$84,979 $146,832 $146,832

$80,084 $1,786,227 $1,994,459 **$406,788 $2,836,973**  **$3,045,205 $14,107**  **$4,320 $4,146** K/UF/46*30; For CFB and SO2>3 then UF=0.25; otherwise UF=0.15

http://www.epa.gov/airmarkets/progsregs/epa-ipm/BaseCasev410.html#documentation Note: Capital Cost equations were modified to be a constant $20/kWe because in my judgement S&L's scaling will result in overprediction of cost for small units**It was assumed that SNCR capital cost was $20/kW for all applications**

### Calculation

Note: Capital Cost equations were modified to be a constant $20/kWe because in my judgement S&L's scaling will result in overprediction of cost for small units**GENERIC ULNB TECHNOLOGY (EPRI (2002)** 

**Assumptions Existing LNB/FGR**  **Current NOx = ~0.15lb/Mbtu (125ppm) ULNB capability**  **NOx =0.06lb/Mbtu (~50ppm) ULNB cost**  **TPC $30**  **$/KW**

**FOM 0.3**  **$/kw-yr VOM**  **0.02 $/MWhr** 



### Variable **Designation Units**  **Value**

Unique ID 126_1 126_2 Plant Sundt Sundt Unit 1 2 Unit Size A MW 108.8 108.8 Gross Heat Rate C Btu/kwhr 11289 11020 NOx Rate D lb/Mmbtu 0.155 0.164 CF J % 9.00% 10.00% Heat Input I Btu/hr 1.23E+09 1.20E+09 Retrofit Factor B 1 1 NOx Removal Eff K % 61% 63% NOx Removed M lb/hr 1.17E+02 1.25E+02 Aux Power Cost T $/kwh 0.06 0.06 Steam Cost U $/Klb 4 4 Operating Labor Rate V $/hr 60 60

**TPC ($) =** $3,264,000 $3,264,000 **TPC ($/kw) =** $30 $30
**Fixed O&M Cost FOM ($/kw-yr) =**  0.30 0.30 **Variable O&M Cost VOM ($/MWhr) =**  0.02 0.02CR = 9.44% 9.44% Property Taxes and Insurance 1.20% 1.20%

Total Charge Rate 10.64% 10.64% **Cost of control - $/Ton**

CF 9% 10% Control Efficiency 61% 63% **Uncontrolled Rate** NOx Rate (lb/hr) 190 197 NOx Rate (lb/MMBtu) 0.155 0.164

NOx (TPY) **75 86**  **Controlled Rate** NOx Rate (lb/hr) 74 72 NOx Rate (lb/MMBtu) 0.06 0.06

NOx (TPY) 29 32 **Tons/Year Removed** 46 55 Annualized capital cost $347,267 $347,267

Fixed O&M $32,640 $32,640 Variable O&M $1,716 $1,906 **Total Cost/year** $381,622 $381,813 **$/Ton** $8,297 $6,991same as LNC2 same as LNC2



### Calculation

126_3 Sundt 3 113.6user input 11319user input 0.16user input 16.00%user input 1.29E+09A*C*1000 1 1 = typical retrofit 63% 1.29E+02 D*I/10^6*K 0.06 4 60Total Labor Cost

$3,408,000 **Total project cost** $30

0.30**Total Fixed O&M Cost**

0.02**Total Variable O&M Cost**9.44% 1.20% 10.64%

16% 63%

206 0.16 **144**(lb/Mbtu*Heat Input)/1000000 77 0.06 Lb/hr*8760*CF/2000 54
90TPC*CR+(FOM*MW)+VOM(MW*8760)*CF $362,587 $34,080 $3,184 $399,852 $4,437EPRI TR-108181, “Retrofit NOx Control Guidelines for Gas- and Oil-Fired Boilers-Version 22.0, June 1997 [1]EPRI Technical report 1004126, “Assessment of Advanced Low-NOx Burners for Gas-Fired Applications”, November 2002EPRI TR-108181, “Retrofit NOx Control Guidelines for Gas- and Oil-Fired Boilers-Version 22.0, June 1997 EPRI Technical report 1004126, “Assessment of Advanced Low-NOx Burners for Gas-Fired Applications”, November 2002**Cholla 1**

**SNCR SCR**  CF 86% 86% Control Efficiency 30% 77% Uncontrolled Rate NOx Rate (lb/hr) 274 274 NOx Rate (lb/MMBtu) 0.22 0.22 NOx (TPY) 1032 1032 Controlled Rate NOx Rate (lb/hr) 192 62 NOx Rate (lb/MMBtu) 0.15 0.05 NOx (TPY) 723 235 Tons/Year Removed 310 798 Total Cost/year $1,160,599 $4,237,867 $/Ton $3,748 $5,313 Incremental Rate $3,748 $6,307

**Report Tables**

**Control Option Emission**  **Reduction (lb/MMBtu)**  **(lb/hr) (tpy)**  **(tpy)** Baseline (LNB+OFA) 0.22 274 1,032

-- SNCR 0.15 192 723 310 SCR 0.05 62 235 798

**Control Option Total Capital Cost**  **Annualized Capital Cost**  **Annual**

**O&M Costs Total Annual** 

**Cost ($)**  **($) ($)**  **($) Ave**  Baseline (LNB+OFA)

-- -- -- -- -- SNCR $2,272,000 $241,725 $918,875 $1,160,599 $3,748 SCR $26,437,190 $2,812,730 $1,425,137 $4,237,867 $5,313 **NO X** **Emissions**

**Cost effectiveness ($/ton)** **Incr**

--

-- $6,307 **Cost effectiveness ($/ton)** **Sundt 1 Sundt 2**  **SNCR ULNB**  **SCR SNCR**  CF 9% 9% 9% CF 10% Control Efficiency 20% 61% 80% Control Efficiency 20% **Uncontrolled Rate Uncontrolled Rate**  NOx Rate (lb/hr) 190 190 190 NOx Rate (lb/hr) 197 NOx Rate (lb/MMBtu) 0.155 0.155 0.155 NOx Rate (lb/MMBtu) 0.164 NOx (TPY) 75 75 75 NOx (TPY) 86 **Controlled Rate Controlled Rate**  NOx Rate (lb/hr) 152 74 38 NOx Rate (lb/hr) 157 NOx Rate (lb/MMBtu) 0.12 0.06 0.03 NOx Rate (lb/MMBtu) 0.13 NOx (TPY) 60 29 15 NOx (TPY) 69 Tons/Year Removed 15 46 60 Tons/Year Removed 17 Total Cost/year $357,311 $381,622 $1,230,047 Total Cost/year $363,382 $/Ton $23,806 $8,297 $20,488 $/Ton $21,096 $/ton Incremental $785 $60,425 $/ton Incremental

**Report Tables**

**Control Option Emission**  **Reduction (lb/MMBtu)**  **(lb/hr) (tpy)**  **(tpy) Sundt Unit 1**  Baseline 0.16 190 75

-- SNCR 0.12 152 60 15 ULNB 0.06 74 29 46 SCR 0.03 38 15 60 **Sundt Unit 2** Baseline 0.16 197 86

-- SNCR 0.13 157 69 17 ULNB 0.06 72 32 55 SCR 0.03 39 17 69 **Sundt Unit 3** Baseline 0.16 206 144

-- SNCR 0.13 165 115 29 ULNB 0.06 77 54 90 SCR 0.03 41 29 115 **NO X** **Emissions Sundt 3** 

**ULNB SCR**  **SNCR ULNB**  **SCR** 10% 10% CF 16% 16% 16% 63% 80% Control Efficiency 20% 63% 80% **Uncontrolled Rate** 197 197 NOx Rate (lb/hr) 206 206 206 0.164 0.164 NOx Rate (lb/MMBtu) 0.16 0.16 0.16 86 86 NOx (TPY) 144 144 144 **Controlled Rate** 72 39 NOx Rate (lb/hr) 165 77 41 0.06 0.03 NOx Rate (lb/MMBtu) 0.13 0.06 0.03 32 17 NOx (TPY) 115 54 29

55 69 Tons/Year Removed 29 90 115 $381,813 $1,231,190 Total Cost/year $406,788 $399,852 $1,273,573 $6,991 $17,869 $/Ton $14,107 $4,437 $11,042 $493 $59,463 $/ton Incremental -$113 $34,629

**Control Option Total Capital**  **Cost Annualized** 

**Capital Cost Annual** 

**O&M Costs ($)**  **($) ($)**  **Sundt Unit 1** Baseline (LNB+OFA)

-- -- -- SNCR $2,176,000 $231,511 $125,800 ULNB $3,264,000 $347,267 $34,356 SCR $10,097,888 $1,074,344 $155,703 **Sundt Unit 2** Baseline (LNB+OFA)

-- -- -- SNCR $2,176,000 $231,511 $131,871 ULNB $3,264,000 $347,267 $34,546 SCR $10,097,888 $1,074,344 $156,847 **Sundt Unit 3** Baseline (LNB+OFA)

-- -- -- SNCR $2,272,000 $241,725 $165,063 ULNB $3,408,000 $362,587 $37,264 SCR $10,385,267 $1,104,919 $168,654**Total Annual**

**Cost ($)**  **Ave Incr** 

-- -- -- $357,311 $23,806

-- $381,622 $8,297 $785 $1,230,047 $20,488 $60,425

-- -- -- $363,382 $21,096

-- $381,813 $6,991 $493 $1,231,190 $17,869 $59,463

-- -- -- $406,788 $14,107

-- $399,852 $4,437 ($113) $1,273,573 $11,042 $34,629

**Cost effectiveness ($/ton)** **Springerville 1 Springerville 2**  **SNCR SCR**  CF 65% 65% CF Control Efficiency 30% 72% Control Efficiency **Uncontrolled Rate Uncontrolled Rate**  NOx Rate (lb/hr) 769 769 NOx Rate (lb/hr) NOx Rate (lb/MMBtu) 0.18 0.18 NOx Rate (lb/MMBtu) NOx (TPY) 2189 2189 NOx (TPY) **Controlled Rate Controlled Rate**  NOx Rate (lb/hr) 538 212 NOx Rate (lb/hr) NOx Rate (lb/MMBtu) 0.13 0.05 NOx Rate (lb/MMBtu) NOx (TPY) 1532 605 NOx (TPY) Tons/Year Removed 657 1584 Tons/Year Removed Total Cost/year $2,836,973 $10,820,423 Total Cost/year $/Ton $4,320 $6,829 $/Ton $/ton Incremental $8,606 $/ton Incremental

**Report Tables**

**Control Option Emission Reduction**  **(lb/MMBtu) (lb/hr)**  **(tpy) (tpy)**  **Springerville 1** Baseline (LNB+OFA) 0.18 769 2,189

-- SNCR 0.127 538 1532 657 SCR 0.05 212 605 1,584 **Springerville 2** Baseline (LNB+OFA) 0.19 798 2,448

-- SNCR 0.133 559 1714 734 SCR 0.05 210 644 1,804

**Control Option Total Capital**  **Cost Annualized** 

**Capital Cost Annual O&M** 

**Costs Total Annual Cost**  **($) ($/yr)**  **($/yr) ($/yr)**  **Springerville 1** Baseline (LNB+OFA)

-- -- -- -- SNCR $8,496,000 $903,914 $1,933,059 $2,836,973 SCR $71,796,257 $7,638,614 $3,181,809 $10,820,423 **Springerville 2** Baseline (LNB+OFA)

-- -- -- -- **NO X** **Emissions**SNCR $8,496,000 $903,914 $2,141,291 $3,045,205

SCR $71,402,351 $7,596,705 $3,379,514 $10,976,219**SNCR SCR**  70% 70% 30% 74%

798 798 0.19 0.19 2448 2448
559 210 0.13 0.05 1714 644
734 1804 $3,045,205 $10,976,219 $4,146 $6,085

$7,416

**Ave Incr** 

-- -- $4,320

-- $6,829 $8,606

-- -- **Cost effectiveness ($/ton)**$4,146

--

$6,085 $7,416