1 2 3 4 5 6 7 8 9 10 **Capacity Fuel**  Unique ID Name Plant Code **Unit MW gross**  **Fuel Avg NOx**  **Avg SO2 2011NOx**  **2011 SO2** 160_2 Apache 160 2 204 C 0.371 0.274 0.355 0.274 160_3 Apache 160 3 204 C 0.437 0.308 0.438 0.308 113_2 Cholla 113 2 288.9 C 0.316 0.16 0.295 0.186 113_3 Cholla 113 3 312.3 C 0.250 0.456 0.254 0.145 113_4 Cholla 113 4 414 C 0.195 0.201 0.26 0.14 6177_1 Coronado 6177 1 410.9 C 0.345 0.389 0.301 0.311 6177_2 Coronado 6177 2 410.9 C 0.43 0.382 0.331 0.15 Notes: 1 1 1 1

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

2 For Apache, 2008-10 period selected. For Cholla and Coronado, 2011 period selected. 3 This is an estimate for 2008-2011 period based upon reported heat input, capacity and heat rate in NEEDS v4.10 4 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** 11 12 13 14 **2008-2011 model NOx**  **model SO2 Capac. Fctr**  **Heat Rate Burner**  **Controls**
0.371 62% 11,351 W OFA 0.437 71% 10,898 W OFA 0.295 74% 10,462 T LNC3 0.254 75% 11,143 T LNC3 0.26 72% 10,626 T LNC3 0.303 81% 10,503 W OFA 0.331 89% 9,695 W LNBO 2 2 3 4 Determined from data reported to US EPA and available on the Clean Air Markets Division Web Site For Apache, 2008-10 period selected. For Cholla and Coronado, 2011 period selected. 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**

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

Unique ID 113_2 Plant Cholla Unit 2 Unit Size A MW 288.9 Gross Heat Rate C Btu/kwhr 10462 NOx Rate D lb/Mmbtu 0.295 CF J CF 0.74 Type of Coal F prb Coal Factor G 1.05 Retrofit Factor B 1 HR Factor H 1.0462 Heat Input I Btu/hr 3.02E+09
NOx Removal Eff K % 0.83 NOx Removal factor L 0.875 NOx Removed M lb/hr 7.41E+02 Urea rate (100%) N lb/hr 517 Steam Required O lb/hr 585 Aux. Power P % 0.58 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 ($) = SCR 35,083,390 BMF ($) = base reagent preparation cost 2,138,779 BMA ($) = APH (SO@> 3lb/Mmbtu) BMB ($) = fans/aux power 4,270,073 BM ($) = Total base cost 41,492,241 BM ($/KW) = 144 **Total Project Cost** A1 = 10% of BM ($) = Eng. and Construction management 4,149,224 A2 = 10% of BM ($) = Labor adjustment 4,149,224 A3 = 10% of BM ($) = Contractor profit/fees 4,149,224**CECC ($) =** Cap., Eng. and management 53,939,914

**CECC ($/kw) =** 187
B1 = 5% of CECC owners cost

- B2 = 6% of CECC + B1 AFUDC (2yr cycle)

-

**TPC ($) = Total project cost**  53,939,914 **TPC ($/kw) =** 187

**Fixed O&M Cost** FOMO ($/kw-yr) = fixed O&M - additional labor cost 0.2 FOMM ($/kw-yr) = fixed O&M - additional maintenace, mtl and labor cost 1.0

**FOM ($/kw-yr) = Total Fixed O&M Cost**  1.25

**Variable O&M Cost** VOMR ($/MWhr) = Variable O&M - urea 0.72 VOMW ($/MWhr) = Variable O&M - catalyst disposal 0.35 VOMM ($/MWhr) = Variable O&M - steam 0.008

**VOM ($/MWhr) = Total Variable O&M Cost**  1.07

CR = 9.44% Property Taxes and Insurance 1.20%

Total Charge Rate 10.64% **Cost of control - $/Ton** CF 74% Control Efficiency 83% **Uncontrolled Rate** (lb/Mbtu*Heat Input)/1000000 NOx Rate (lb/hr) Lb/hr*8760*CF/2000 892 NOx Rate (lb/MMBtu) 0.295

NOx (TPY) 2890 **Controlled Rate** NOx Rate (lb/hr) 151.1 NOx Rate (lb/MMBtu) TPC*CR+(FOM*MW)+VOM(MW*8760)*CF 0.05NOx (TPY) 490

**Tons/Year Removed 2400**  **Total Cost/year** $8,113,266 **$/Ton** $3,380

### Calculation

113_3 113_4 Cholla Cholla 3 4 312.3 414 11143 10626.45 0.254 0.26 0.75 0.72 prb prb blends are treated as PRB to be conservative 1.05 1.05 Bit=1; PRB=1.05; Lig=1.07 1 1 1 = typical retrofit 1.1143 1.062645 C/10000 3.48E+09 4.40E+09 A*C*1000 user input 0.80 0.81 for NOx>0.5lb/Mbtu=90%; <.5 = (NOx-0.05)/NOx 0.875 0.875 7.10E+02 9.24E+02 D*I/10^6*K 496 645 M*0.525*60/46*1.01/.99 560 729 N*1.13 0.60 0.59 0.56*(G*H)^0.43 400 400 8000 8000 0.06 0.06 4 4 60 60 Total Labor Cost

**Capital Cost Calculation (includes equipment, installation, buildings, foundations,electrical, minor physical/chemical ww treatment and retrofit difficulty)**
39,940,772 49,554,800 2,116,337 2,260,403
4,530,480 4,999,267
46,587,590 56,814,470 149 137

4,658,759 5,681,447 4,658,759 5,681,447 4,658,759 5,681,44760,563,867 73,858,811

194 178

- -

- - 60,563,867 73,858,811 194 178

0.2 0.2 1.0 0.7

1.16 0.88

0.64 0.62 0.35 0.35

0.007 0.007

0.99 0.98

9.44% 9.44% 1.20% 1.20% 10.64% 10.64%

75% 72% 80% 81%

884 1144 0.254 0.260 2904 3607

174.0 220.0 0.05 0.05572 694

**2332 2913**  $8,842,201 $10,781,102 $3,792 $3,700**Source for Cost Estimating Info**

http://www.epa.gov/airmarkets/progsregs/epa-ipm/BaseCasev410.html#documentation

### Variable **Designation Units** 

Unique ID Plant Unit Unit Size A MW Gross Heat Rate C Btu/kwhr NOx Rate D lb/Mmbtu CF J CF Type of Coal F Coal Factor G Retrofit Factor B HR Factor H Heat Input I Btu/hr NOx Removal Factor J NOx Removal Eff K % NOx Removed M lb/hr Urea rate (100%) N lb/hr Steam Required O lb/hr Aux. Power P % Urea Cost (50% sol) R $/ton Catalyst Cost S $/m3 Aux Power Cost T $/kwh Steam Cost U $/Klb Operating Labor Rate V $/hr

**Capital Cost Calculation (includes equipment, installation, buildings, foundations,electrical, minor physical/chemical ww treatment and retrofit difficulty)** BMR ($) = SCR BMF ($) = base reagent preparation cost BMA ($) = APH (SO@> 3lb/Mmbtu) BMB ($) = fans/aux power BM ($) = Total base cost BM ($/KW) =
**Total Project Cost** A1 = 10% of BM ($) = Eng. and Construction management

A2 = 10% of BM ($) = Labor adjustment A3 = 10% of BM ($) = Contractor profit/fees**CECC ($) =** Cap., Eng. and management **CECC ($/kw) =**

B1 = 5% of CECC owners cost B2 = 6% of CECC + B1 AFUDC (2yr cycle)

**TPC ($) = Total project cost**  **TPC ($/kw) =**

**Fixed O&M Cost** FOMO ($/kw-yr) = fixed O&M - additional labor cost

FOMM ($/kw-yr) = fixed O&M - additional maintenace, mtl and labor cost

**FOM ($/kw-yr) = Total Fixed O&M Cost** 

**Variable O&M Cost** VOMR ($/MWhr) = Variable O&M - urea

VOMW ($/MWhr) = Variable O&M - catalyst disposal VOMM ($/MWhr) = Variable O&M - steam

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

CR = Property Taxes and Insurance

Total Charge Rate **Cost of control - $/Ton** CF

Control Efficiency **Uncontrolled Rate** (lb/Mbtu*Heat Input)/1000000

NOx Rate (lb/hr) Lb/hr*8760*CF/2000 NOx Rate (lb/MMBtu)

NOx (TPY) NOx rate, ppm **Controlled Rate** NOx Rate (lb/hr)

NOx Rate (lb/MMBtu) TPC*CR+(FOM*MW)+VOM(MW*8760)*CF

NOx (TPY) NOx rate ppmMin Reactor Potential ratio of reactor potential **Tons/Year Removed Total Cost/year**  **$/Ton**

cost of controlling to .08 assuming a 1% reduction in capital cost cost of controlling to .08 assuming a 2% reduction in capital cost cost of controlling to .08 assuming a 3% reduction in capital cost cost of controlling to .08 assuming a 4% reduction in capital cost cost of controlling to .08 assuming a 5% reduction in capital cost

### Value

160_2 160_3 6177_1 6177_2 6177_2 Apache Apache Coronado Coronado Coronado 2 3 1 2 2 204 204 410.9 410.9 410.9 11351 10898 10503 9695 9695 0.26 0.31 0.303 0.331 0.331 62.00% 71.00% 81.00% 89.00% 89.00% prb prb prb prb prb 1.05 1.05 1.05 1.05 1.05 1 1 1 1 1 1.1351 1.0898 1.0503 0.9695 0.9695 2.32E+09 2.22E+09 4.32E+09 3.98E+09 3.98E+09 0.875 0.875 0.875 0.875 0.875 0.81 0.84 0.835 0.85 0.76 4.86E+02 5.69E+02 1.09E+03 1.12E+03 1.00E+03 339 397 763 782 699 383 449 862 884 789 0.60 0.59 0.58 0.56 0.56 400 400 400 400 400 8000 8000 8000 8000 8000 0.06 0.06 0.06 0.06 0.06 4 4 4 4 4 60 60 60 60 60

**Capital Cost Calculation (includes equipment, installation, buildings, foundations,electrical, minor physical/chemical ww treatment and retrofit difficulty)**
20,593,050 19,835,737 36,515,317 33,922,728 33,922,728 1,924,640 2,002,376 2,356,820 2,371,545 2,305,543
3,818,054 3,753,301 4,959,112 4,795,152 4,795,152
26,335,745 25,591,415 43,831,249 41,089,425 41,023,423 129 125 107 100 100

2,633,574 2,559,141 4,383,125 4,108,943 4,102,342 2,633,574 2,559,141 4,383,125 4,108,943 4,102,342 2,633,574 2,559,141 4,383,125 4,108,943 4,102,34234,236,468 33,268,839 56,980,624 53,416,253 53,330,450

168 163 139 130 130

- - - - -

- - - - - 34,236,468 33,268,839 56,980,624 53,416,253 53,330,450 168 163 139 130 130

0.3 0.3 0.2 0.2 0.2 1.5 1.5 0.7 0.7 0.7

1.78 1.78 0.88 0.88 0.88

0.67 0.78 0.74 0.76 0.68 0.35 0.35 0.35 0.35 0.35

0.008 0.009 0.008 0.009 0.008

1.02 1.14 1.10 1.12 1.04

9.44% 9.44% 9.44% 9.44% 9.44% 1.20% 1.20% 1.20% 1.20% 1.20% 10.64% 10.64% 10.64% 10.64% 10.64%

62% 71% 81% 89% 89% 81% 84% 83% 85% 76%

601 680 1308 1319 1319 0.260 0.306 0.303 0.331 0.331 1633 2115 4639 5140 5140 231.7 231.7

115.8 111.2 215.8 199.2 318.7 0.05 0.05 0.05 0.05 0.08 314 346 766 776 1242 35 564.5986 4.4869

**1319 1769**  **3874 4364**  **3898** $5,138,017 $5,346,022 $9,634,654 $9,633,149 $9,360,704 $3,896 $3,022 $2,487 $2,208 $2,402

585

1 0.01 $9,303,964.21 2 0.02 $9,247,224.38 3 0.03 $9,190,484.56 4 0.04 $9,133,744.73 5 0.05 $9,077,004.91**Source for Cost Estimating Info**


### Calculation

to be conservative, all units assumed to be prb Bit=1; PRB=1.05; Lig=1.07 1 = typical retrofit C/10000 A*C*1000 for NOx>0.5lb/Mbtu=90%; <.5 = (NOx-0.05)/NOx D*I/10^6*K M*0.525*60/46*1.01/.99 N*1.13 0.56*(G*H)^0.43 http://www.epa.gov/airmarkets/progsregs/epa-ipm/BaseCasev410.html#documentation

Total Labor Cost

**low dust SCR BMR assumed to be 75% of the cost of high dust SCR**85,803 0.16% estimated difference in capital cost for S&L model.

700 ppm NOx roughly equivalent to 1.0 lb/MMBtu

2 ppm slip maximum allowed ammonia slip**Minimum reactor potential is estimated by taking the log of the estimated inlet ammonia divided by the maximum allowed outlet ammonia (assumed 2 ppm) at design conditions.** 1.0249 **Reactor potential is used to estimate the necessary catalyst loading and is proportional to the catalyst loading**

**As indicated here, roughly 2.5% more catalyst would be installed in the case of controlling to 0.05 lb/MMBtu versus 0.08 lb/MMBtu.**

$56,739.83 $122 $113,479.65 $244 $170,219.48 $365 $226,959.31 $487 $283,699.13 $609http://www.epa.gov/airmarkets/progsregs/epa-ipm/BaseCasev410.html#documentationestimated difference in capital cost for S&L model.

roughly equivalent to 1.0 lb/MMBtu
maximum allowed ammonia slip**Minimum reactor potential is estimated by taking the log of the estimated inlet ammonia divided by the maximum allowed outlet ammonia (assumed 2 ppm) at design conditions. Reactor potential is used to estimate the necessary catalyst loading and is proportional to the catalyst loading**  **As indicated here, roughly 2.5% more catalyst would be installed in the case of controlling to 0.05 lb/MMBtu versus 0.08 lb/MMBtu. Minimum reactor potential is estimated by taking the log of the estimated inlet ammonia divided by the maximum allowed outlet ammonia (assumed 2 ppm) at design conditions.** 

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

Unique ID 113_2 113_3 113_4 Plant Cholla Cholla Cholla Unit 2 3 4 Unit Size A MW 288.9 312.3 414 Heat Rate C Btu/kwhr 10462 11143 10626.45 NOx Rate D lb/Mmbtu 0.295 0.254 0.26 CF I % 0.74 0.75 0.72 Type of fuel prb prb prb Coal Factor F 1.05 1.05 1.05 Retrofit Factor B 1 1 1 HR Factor G 1.0462 1.1143 1.062645 Heat Input H Btu/hr 3.02E+09 3.48E+09 4.40E+09
NOx Removal Eff J % 30% 30% 30% NOx Removed K lb/hr 2.67E+02 2.65E+02 3.43E+02 Urea rate (100%) L lb/hr 697.80 691.76 895.17 Water Required M lb/hr 6280 6226 8057 Aux. Power N % 0.05 0.05 0.05 Dilution water rate O (1000gph) 0.754 0.747 0.967 Urea Cost (50% sol) P $/ton 400 400 400 Urea Cost (50% sol) 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 ($) = 4785093 5172671 6857143 BMA ($) = BMB ($) = BM ($) = 4,785,093 5,172,671 6,857,143 BM ($/KW) = 17 17 17 **Total Project Cost** A1 = 5% of BM ($) = 239255 258634 342857 A2 = 5% of BM ($) = 239255 258634 342857 A3 = 5% of BM ($) = 239255 258634 342857 **CECC ($) =** 5,502,857 5,948,571 7,885,714**CECC ($/kw) =** 19 19 19

B1 = 5% of CECC 275,143 297,429 394,286 **TPC ($) =** 5,778,000 6,246,000 8,280,000 **TPC ($/kw) =** 20 20 20

**Fixed O&M Cost** FOMO ($/kw-yr) = 0.21599 0.19981 0.15072 FOMM ($/kw-yr) = 0.20 0.20 0.20

**FOM ($/kw-yr) =** 0.41 0.40 0.35

**Variable O&M Cost** VOMR ($/MWhr) = 0.97 0.89 0.86 VOMM ($/MWhr) = 0.0002 0.0002 0.0001

**VOM ($/MWhr) =** 0.97 0.89 0.87

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 74% 75% 72% Control Efficiency 30% 30% 30% **Uncontrolled Rate** NOx Rate (lb/hr) 892 884 1144 NOx Rate (lb/MMBtu) 0.295 0.254 0.26

NOx (TPY) **2890 2904**  **3607 Controlled Rate**  NOx Rate (lb/hr) 624 619 801 NOx Rate (lb/MMBtu) 0.21 0.18 0.18

NOx (TPY) 2023 2033 2525 **Tons/Year Removed 867**  **871 1082** **Total Cost/year** $2,544,307 $2,607,329 $3,284,409 **$/Ton** $2,935 $2,993 $3,035160_2 160_3 6177_1 6177_2

Apache Apache Coronado Coronado 2 3 1 2 204 204 410.9 410.9 11351 10898 10503 9695 **0.26 0.31**  0.303 0.331 0.62 0.71 0.81 0.89 prb prb prb prb 1.05 1.05 1.05 1.05 1 1 1 1 1.1351 1.0898 1.0503 0.9695 2.32E+09 2.22E+09 4.32E+09 3.98E+09

30% 30% 30% 20% 1.80E+02 2.04E+02 3.92E+02 2.64E+02 470.63 532.23 1023.38 687.96 4236 4790 9210 6192 0.05 0.05 0.05 0.05 0.508 0.575 1.105 0.743 400 400 400 400 0.06 0.06 0.06 0.06 1 1 1 1 60 60 60 60

3378882 3378882 6805797 6805797

3,378,882 3,378,882 6,805,797 6,805,797 17 17 17 17

168944 168944 340290 340290 168944 168944 340290 340290 168944 168944 340290 340290
3,885,714 3,885,714 7,826,667 7,826,66719 19 19 19

194,286 194,286 391,333 391,333
4,080,000 4,080,000 8,218,000 8,218,000 20 20 20 20

0.30588 0.30588 0.15186 0.15186 0.20 0.20 0.20 0.20

0.50 0.50 0.35 0.35

0.92 1.04 1.00 0.67 0.0003 0.0003 0.0001 0.0001

0.92 1.04 1.00 0.67

9.44% 9.44% 9.44% 9.44% 1.20% 1.20% 1.20% 1.20% 10.64% 10.64% 10.64% 10.64%

62% 71% 81% 89% 30% 30% 30% 20%

601 680 1308 1319 0.2597 0.3059 0.303 0.331 **1633 2115**  **4639 5140** 

421 476 915 1055 0.18 0.21 0.21 0.26 1143 1480 3248 4112

**490 634**  **1392 1028** $1,559,793 $1,861,511 $3,923,430 $3,164,330

$3,184 $2,934 $2,819 $3,078

### Calculation

For Apache, inlet NOx assumes LNB

PRB assumed to be conservative Bit=1; PRB=1.05; Lig=1.07; gas=1 1 = typical retrofit C/10000 A*C*1000
30% - coal; 20% - gas actual NOx reduction will vary depending upon process specifics. 30% is selected as conservative - under the 35% value in Chapter 5 of the IPM documentation D*H/10^6*j K/UF/46*30; For CFB and SO2>3 then UF=0.25; otherwise UF=0.15 L*9 M*0.12/1000

Total Labor Cost

SNCR APH (SO@> 3lb/Mmbtu); 65000*B*(A*G)^.78 BOP

Total base cost

Eng. and Construction management Labor adjustment Contractor profit/fees
Cap., Eng. and management http://www.epa.gov/airmarkets/progsregs/epa-ipm/BaseCasev410.html#documentation**Note: Capital Cost equations were modified to be a constant $20/kWe because this is simpler and is also more consistent with my experience with this technology. S&L assumes scaling factors that I believe will overestimate BMS for smaller units and possibly underestimate costs for larger units.**

owners cost **See: NESCAUM, Control Technologies to Reduce Conventional and Hazardous Air Pollutants from Coal-Fired Power Plants, March 21, 2011, Page 17 and Air Pollution Control Technology Fact Sheet, http://www.epa.gov/ttncatc1/dir1/fsncr.pdf**  **Total project cost** 

### It was assumed that SNCR capital cost was $20/kW for all applications

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

**Total Fixed O&M Cost**

Variable O&M - urea Variable O&M - dilution water

**Total Variable O&M Cost**

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

TPC*CR+(FOM*MW)+VOM(MW*8760)*CFactual NOx reduction will vary depending upon process specifics. 30% is selected as conservative - under the 35% value in Chapter 5 of the IPM documentation

http://www.epa.gov/airmarkets/progsregs/epa-ipm/BaseCasev410.html#documentation**Note: Capital Cost equations were modified to be a constant $20/kWe because this is simpler and is also more consistent with my experience with this technology. S&L assumes scaling factors that I believe will overestimate BMS for smaller units and possibly underestimate costs for larger units. See: NESCAUM, Control Technologies to Reduce Conventional and Hazardous Air Pollutants from Coal-Fired Power Plants, March 21, 2011, Page 17** 

**and Air Pollution Control Technology Fact Sheet, http://www.epa.gov/ttncatc1/dir1/fsncr.pdf Note: Capital Cost equations were modified to be a constant $20/kWe because this is simpler and is also more consistent with my experience with this technology. S&L assumes scaling factors that I believe will overestimate BMS for smaller units and possibly underestimate costs for larger units.**  **See: NESCAUM, Control Technologies to Reduce Conventional and Hazardous Air Pollutants from Coal-Fired Power Plants, March 21, 2011, Page 17 Note: Capital Cost equations were modified to be a constant $20/kWe because this is simpler and is also more consistent with my experience with this technology. S&L assumes scaling factors that I believe will overestimate BMS for smaller units and possibly underestimate costs for larger units.** 

## BASE COSTS **Boiler Type TECHNOLOGY**  **Capital ($/kw)**  OFA **Wall-Fired LNB**  **45 Wall-Fired**  **LNB + OFA 61**  **T-Fired LNC1**  **24 T-Fired**  **LNC2 33**  **T-Fired LNC3**  **38 Vertical-Fired**  **NOx Comb Control 29** 



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

Unique ID 160_2 Plant Apache Unit 2 Unit Size A MW 204 Gross Heat Rate C Btu/kwhr 11351 NOx Rate D lb/Mmbtu 0.371 CF J % 62.00% NOx Controls OFA Retrofit Factor B 1.00 Heat Input I Btu/hr 2.32E+09
NOx Removal Eff K % 30.00% NOx Removed M lb/hr 257.73 Aux Power Cost T $/kwh 0.06 Steam Cost U $/Klb 4.00 Operating Labor Rate V $/hr 60.00

**TPC ($) =** 10,543,189 **Base Cost** 45 **TPC ($/kw) = 51.7**  **Fixed O&M Cost FOM ($/kw-yr) =**  0.34**VOM ($/MWhr) =** 0.07

CR = 9.44% Property Taxes and Insurance 1.20% Total Charge Rate 10.64%

**Cost of control - $/Ton** CF 62% Control Efficiency 30% **Uncontrolled Rate** NOx Rate (lb/hr) 859 NOx Rate (lb/MMBtu) 0.371 NOx (TPY) **2333 Controlled Rate**  NOx Rate (lb/hr) 601 NOx Rate (lb/MMBtu) 0.26 NOx (TPY) **1633 Tons/Year Removed**  700 **Total Cost/year** $1,269,566 **$/Ton** $1,814

### FOM **VOM REM Eff**  **($/kw-yr) mills/kwhr)**  **0.3 0.07**  **0.3 0.4**  **0.09 0.2**  **0 0.2**  **0.03 0.3**  **0.03 0.2**  **0.06**



### Calculation

160_3 Apache 3 204 user input 10898 user input 0.437 user input 71.00% user input OFA 1.00 1 = typical retrofit 2.22E+09 A*C*1000

30.00% user input 291.46 D*I/10^6*K 0.06 4.00 60.00 Total Labor Cost

10,543,189 **Total project cost** 45

**51.7**

0.34 **Total Fixed O&M Cost**0.07 **Total Variable O&M Cost**

9.44% 1.20% 10.64%

71% 30% (lb/Mbtu*Heat Input)/1000000 972 Lb/hr*8760*CF/2000 0.437 **3021**

680 0.31 TPC*CR+(FOM*MW)+VOM(MW*8760)*CF **2115**

906 $1,280,825 $1,413

### SCALING FACTORS (TPC and FOM)

**Wall- and T-fired = (base cost)*(300/MW)^0.359** **Vertical-fired = (base cost)*(300/MW)^0.553**

See Chapter 5 http://www.epa.gov/airmarkets/progsregs/epa-ipm/BaseCasev410.html#documentation**Apache 2**

**LNB SNCR - post LNB**  **SCR - Post LNB LNB+SNCR**  CF 62% 62% 62% Control Efficiency 30% 30% 81% 51% **Uncontrolled Rate** NOx Rate (lb/hr) 859 601 601 859 NOx Rate (lb/MMBtu) 0.37 0.26 0.26 0.37 NOx (TPY) 2333 1633 1633 2333 **Controlled Rate** NOx Rate (lb/hr) 601 421 116 421 NOx Rate (lb/MMBtu) 0.26 0.18 0.05 0.18 NOx (TPY) 1633 1143 314 1143 Tons/Year Removed 700 490 1319 1190 Total Cost/year $1,269,566 $1,559,793 $5,138,017 $2,829,359 $/Ton $1,814 $3,184 $3,896 $2,378 Incremental $/ton $1,814 $3,184

**Apache 3**

**LNB SNCR - post LNB**  **SCR - Post LNB LNB+SNCR**  CF 71% 71% 71% Control Efficiency 30% 30% 84% 51% **Uncontrolled Rate** NOx Rate (lb/hr) 972 680 680 972 NOx Rate (lb/MMBtu) 0.44 0.31 0.31 0.44 NOx (TPY) 3021 2115 2115 3021 **Controlled Rate** NOx Rate (lb/hr) 680 476 111 476 NOx Rate (lb/MMBtu) 0.31 0.21 0.05 0.21 NOx (TPY) 2115 1480 346 1480 Tons/Year Removed 906 634 1769 1541 Total Cost/year $1,280,825 $1,861,511 $5,346,022 $3,142,336 $/Ton $1,413 $2,934 $3,022 $2,039 Incremental $/ton $1,413 $2,934**LNB+SCR**

87%

859 0.37 2333

116 0.05 314

2019 version 1 difference $6,407,583 $6,697,809 -$290,227 $3,174 $3,318 -$144 $3,896 $4,117 -$220

**LNB+SCR**

89%

972 0.44 3021

111 0.05 346

2676 version 1 difference $6,626,847 $7,207,534 -$580,687 $2,477 $2,694 -$217 $3,022 $3,350 -$328**Cholla 2**

**SNCR SCR** 

CF 74% 74% Control Efficiency 30% 83% Uncontrolled Rate NOx Rate (lb/hr) 892 892 NOx Rate (lb/MMBtu) 0.295 0.295 NOx (TPY) 2890 2890 Controlled Rate NOx Rate (lb/hr) 624 151 NOx Rate (lb/MMBtu) 0.21 0.05 NOx (TPY) 2023 490 Tons/Year Removed 867 2400 Total Cost/year $2,544,307 $8,113,266 $/Ton $2,935 $3,380 Incremental Rate $2,935 $3,632

**Cholla 3**

**SNCR SCR**  CF 75% 75% Control Efficiency 30% 80% Uncontrolled Rate NOx Rate (lb/hr) 884 884 NOx Rate (lb/MMBtu) 0.25 0.25 NOx (TPY) 2904 2904 Controlled Rate NOx Rate (lb/hr) 619 174 NOx Rate (lb/MMBtu) 0.18 0.05 NOx (TPY) 2033 572 Tons/Year Removed 871 2332 Total Cost/year $2,607,329 $8,842,201 $/Ton $2,993 $3,792 Incremental Rate $2,993 $4,268

**Cholla 4**

**SNCR SCR** CF 72% 72%

Control Efficiency 30% 81% Uncontrolled Rate NOx Rate (lb/hr) 1144 1144 NOx Rate (lb/MMBtu) 0.26 0.26 NOx (TPY) 3607 3607 Controlled Rate NOx Rate (lb/hr) 801 220 NOx Rate (lb/MMBtu) 0.18 0.05 NOx (TPY) 2525 694 Tons/Year Removed 1082 2913 Total Cost/year $3,284,409 $10,781,102 $/Ton $3,035 $3,700 Incremental Rate $3,035 $4,094**Coronado 1**

**SNCR SCR**  CF 81% 81% Control Efficiency 30% 83% Uncontrolled Rate NOx Rate (lb/hr) 1308 1308 NOx Rate (lb/MMBtu) 0.303 0.303 NOx (TPY) 4639 4639 Controlled Rate NOx Rate (lb/hr) 915 216 NOx Rate (lb/MMBtu) 0.21 0.05 NOx (TPY) 3248 766 Tons/Year Removed 1392 3874 Total Cost/year $3,923,430 $9,634,654 $/Ton $2,819 $2,487

Incremental Rate $2,819 $2,301

**Coronado 2**

**SCR** comparison of SCR

control cases CF 89% 89% 89% Control Efficiency 76% 85% 0.375 **Uncontrolled Rate** NOx Rate (lb/hr) 1319 1319 319 NOx Rate (lb/MMBtu) 0.33 0.33 0 NOx (TPY) 5140 5140 1242 **Controlled Rate** NOx Rate (lb/hr) 319 199 199 NOx Rate (lb/MMBtu) 0.08 0.05 0 NOx (TPY) 1242 776 776 Tons/Year Removed 3898 4364 466 Total Cost/year $9,360,704 $9,633,149 $272,445 $/Ton $2,402 $2,208 $585

Incremental Rate $585