**Control Option Cost Effectiveness (based on utilities' comments)**

Capacity Factor2 Heat Duty

(MMBtu/hr)1 Ctrl Tech Ctrl Efficiency Notes Apache 2 0.85 2,316 LNB 30% Control efficiency from an uncontrolled/ OFA-only base case Apache 3 0.85 2,223 SNCR 30% Incremental control efficiency from LNB Cholla 2 0.91 3,022 Cholla 3 0.86 3,480 Cholla 4 0.93 4,399 Coronado 1 0.84 4,316 Coronado 2 0.89 3,984

1As summarized in ATP cost calculation deliverable

2Based on facility submittals (either original ADEQ, or in comments); generally corresponds to 2001-03

**Emission Factor**  **Removed Annual Cost**  **Unit Control Option**  **(lb/MMBtu) (lb/hr)**  **(tpy) (tpy)**  **($/yr) Ave**  **Incremental** Apache 2 OFA (baseline) 0.371 1 859 3,198

-- -- -- --

LNB 0.260 1 601 2,239 960 1,298,328 1,353

-- SNCR+LNB 0.182 1 421 1,567 1,631 3,237,380 1,985 2,887 SCR+LNB 0.050 1 116 431 2,767 9,546,264 3,450 5,553 Apache 3 OFA (baseline) 0.438 1 974 3,625

-- -- -- --

LNB 0.307 1 682 2,538 1,088 1,298,328 1,194

-- SNCR+LNB 0.215 1 477 1,776 1,849 3,424,215 1,852 2,792 SCR+LNB 0.050 1 111 414 3,211 9,546,264 2,973 4,493 Cholla 2 OFA 0.326 2 985 3,927

-- -- -- --

LNB+OFA 0.295 1 892 3,554 373 543,093 1,454

-- SNCR+LNB 0.21 1 624 2,488 1,440 2,823,066 1,961 2,138 SCR+LNB 0.050 1 151 602 3,325 9,906,206 2,979 3,757 Cholla 3 OFA 0.304 2 1058 3,985

-- -- -- --

LNB+OFA 0.254 1 885 3,335 650 483,300 743

-- SNCR+LNB 0.178 1 620 2,334 1,651 3,070,443 1,860 2,586 SCR+LNB 0.050 1 174 655 3,330 9,448,912 2,838 3,799 Cholla 4 OFA 0.296 2 1302 5,304

-- -- -- --

LNB+OFA 0.260 1 1144 4,661 643 673,550 1,047

-- SNCR+LNB 0.182 1 801 3,263 2,042 4,086,366 2,001 2,441 SCR+LNB 0.050 1 220 896 4,408 13,590,853 3,083 4,016 Coronado 1 OFA 0.407 2 1756 6,462

-- -- -- --

LNB+OFA 0.303 1 1308 4,811 1,651 613,554 372

-- SNCR+LNB 0.212 1 915 3,368 3,095 7,166,781 2,316 4,540 SCR+LNB 0.050 1 216 794 5,669 12,103,941 2,135 1,918 Coronado 2 SCR+LNB 0.08 3 319 1,242

-- -- -- --

SCR+LNB 0.072 4 287 1,118 124 235,982 1,900

-- **Emission Rate Cost Effectiveness**  **($/ton) N** **o t** **e s** 

### Interest Rate 7.0%

Insurance 0.30% Property Taxes 0.90% Equipment Lifetime (years) 20 Capital Recovery Factor 0.106

Apache 2 Apache 3 Designation in ATP Deliverable Unit Output (MW) 204 204 Capacity Factor 0.85 0.85

Capital Cost 10,543,189 10,543,189 Total project cost per ATP deliverable Capital Recovery factor 0.106 0.106 Annualized Rate ($/yr) 1,121,721 1,121,721

Fixed O&M ($/year) 70,278 70,278 $/kW-yr 0.34 0.34 Total FOM cost per ATP deliverable $/MW-yr 345 345 Variable O&M ($/year) 106,329 106,329 $/MWh 0.07 0.07 Total VOM cost per ATP deliverable Total Annual O&M ($/year) 176,607 176,607

Total Annual Cost ($/ton) 1,298,328 1,298,328

### Total project cost per ATP deliverable

### Interest Rate 7.0%

Insurance 0.30% Property Taxes 0.90% Equipment Lifetime (years) 20 Capital Recovery Factor 0.106

Apache 21 

### Apache 31 

### Cholla 2 Cholla 3 Cholla 4 Unit Output (MW) 204 204 290 312 414 Capacity Factor 0.85 0.85 0.91 0.86 0.93

Capital Cost 4,080,000 4,080,000 5,778,000 6,246,000 8,280,000 Capital Recovery factor 0.106 0.106 0.106 0.106 0.106 Annualized Rate ($/yr) 434,083 434,083 614,738 664,530 880,933

Fixed O&M ($/year) 102,947 102,947 120,040 124,412 144,686 $/kW-yr 0.50 0.50 0.41 0.40 0.35 $/MW-yr 505 505 414 399 349 Variable O&M ($/year) 1,402,022 1,588,857 2,392,967 2,086,292 2,918,603 $/MWh 0.92 1.05 1.04 0.89 0.87 Total Annual O&M ($/year) 1,504,969 1,691,804 2,513,007 2,210,705 3,063,288

Total Annual Cost ($/year) 1,939,052 2,125,887 3,127,745 2,875,235 3,944,222

Notes:

1

### Apache 2 and 3 do not currently operate with LNB. As a result, the costs represented here must be combined with LNB cost estimates in order to represent the total cost of the 'SNCR+LNB' control option. The Cholla units and Coronado units already operate with LNB; as a result, their costs do not be adjusted to accurately reflect the 'SNCR+LNB' control option.

### Coronado 1 Designation in ATP Deliverable

411 0.84

8,218,000 Total project cost 0.106 874,337

144,089 Total FOM cost per ATP deliverable 0.35 351 3,430,980 Total VOM cost per ATP deliverable 1.13 3,575,070

4,449,407

Apache 2 and 3 do not currently operate with LNB. As a result, the costs represented here must be combined with LNB cost estimates in order to represent the total cost of the 'SNCR+LNB' control option. The Cholla units and Coronado units already operate with LNB; as a result,

### Interest Rate 7.0%

Insurance 0.30% Property Taxes 0.90% Equipment Lifetime (years) 20 Capital Recovery Factor 0.106

Apache 21 

### Apache 31 

### Cholla 2 Cholla 3 Cholla 4 Unit Output (MW) 204 204 290 312 414 Capacity Factor 0.85 0.91 0.86 0.93 0.84

Capital Cost 34,236,468 33,270,618 53,997,669 60,563,867 73,858,811 Capital Recovery factor 0.106 0.106 0.106 0.106 0.106 Annualized Rate ($/yr) 3,642,518 3,539,758 5,744,970 6,443,567 7,858,055

Fixed O&M ($/year) 362,400 362,400 363,780 362,052 362,400 $/kW-yr 1.78 1.78 1.25 1.16 0.88 $/MW-yr 1,776 1,776 1,254 1,160 875 Variable O&M ($/year) 1,553,441 1,850,623 2,347,221 2,522,505 2,987,421 $/MWh 1.02 1.14 1.07 0.99 0.98 Total Annual O&M ($/year) 1,915,841 2,213,023 2,711,001 2,884,557 3,349,821

Total Annual Cost ($/year) 5,558,360 5,752,781 8,455,971 9,328,124 11,207,876

Notes:

1

### Apache 2 and 3 do not currently operate with LNB. As a result, the costs represented here must be combined with LNB cost estimates in order to represent the total cost of the 'SCR+LNB' control option. The Cholla units and Coronado units already operate with LNB; as a result, their costs do not be adjusted to accurately reflect the 'SCR+LNB' control option.

### Coronado 1 Coronado 2 @0.08 Coronado 2 @0.05 Designation in ATP Deliverable

411 411 411 0.89 0.89 0.89

57,100,553 53,330,450 53,416,253 Total project cost, low dust SCR for Apache and Coronado units 0.106 0.106 0.106 6,075,095 5,673,983 5,683,111

362,488 362,488 362,488 Total FOM cost per ATP 0.88 0.88 0.88 882 882 882 3,527,957 3,588,518 3,588,518 Total VOM cost per ATP 1.10 1.12 1.12 3,890,445 3,951,007 3,951,007

9,965,540 9,624,989 9,634,118

Apache 2 and 3 do not currently operate with LNB. As a result, the costs represented here must be combined with LNB cost estimates in order to represent the total cost of the 'SCR+LNB' control option. The Cholla units and Coronado units already operate with LNB; as a result,

### Total project cost, low dust SCR for Apache and Coronado units**Cost Calc Emission Rates (Annual ave basis) Controls in place** 

**Unit Base Case Rate**  **SCR Emission Rate** within period

**lb/MMBtu Source**  **lb/MMBtu Ctrl Eff**  as used by Andover Apache 2 0.371 CY2008-10 0.05 87% OFA Apache 3 0.438 CY2008-10 0.05 89% OFA Cholla 2 0.316 CY2008-10 0.05 84% COFA then COFA+LNB Cholla 2 CY11 0.295 CY2011 0.05 83% COFA then COFA+LNB Cholla 3 0.254 CY2011 0.05 80% COFA+LNB Cholla 4 0.260 CY2011 0.05 81% COFA+LNB Coronado 1 0.345 CY2008-10 0.05 86% OFA then OFA+LNB Coronado 1 R 0.303 May'09-2010 0.05 83.5% Coronado 2 0.331 CY2011 0.05 85% OFA then OFA+LNB Coronado 1 CY11 0.301 CY2011 0.05 83% OFA+LNB Coronado 2 CY11 0.331 CY2011 0.05 85% OFA then OFA+LNB 1 CAMD Data, lb/MMBtu and lb/hr on day with maximum NOx tons, per "AZ EGUs - Emission Data 2008-11.xlsx" 2 No LNB installed during CY2008-11 time period, except Coronado 2 after 5/20/2011 Coronado 1 and 2 CY11: SCR % reduction from 2011 base TPY, instead of on 0.08 and 0.05 lb/MMBtu.... use all postLNB instead of CY11? Andover: "EGU BART Costs_Apache_Cholla_Coronado.xlsx", 2012-05-29 (except Cholla 1) **per Andover Technology**Coronado 1 and 2 CY11: SCR % reduction from 2011 base TPY, instead of on 0.08 and 0.05 lb/MMBtu.... use all postLNB instead of CY11?State Facility Name Unit ID Year Program(s) SO2 (tons)Avg. NOx Rate (lb/MMBtu)

NOx (tons)

AZ Apache Station 1 2011ARP 0.007 0.2011 1.429 AZ Apache Station 1 2010ARP 0.021 0.1578 4.671 AZ Apache Station 1 2009ARP 0.154 0.1737 43.418 AZ Apache Station 1 2008ARP 0.152 0.164 35.571 AZ Apache Station 1 2007ARP 0.234 0.1568 53.017 AZ Apache Station 1 2006ARP 0.174 0.1674 40.476 AZ Apache Station 1 2005ARP 0.219 0.1706 51.13 AZ Apache Station 1 2004ARP 0.19 0.1405 42.585 AZ Apache Station 1 2003ARP 0.522 0.1437 122.831 AZ Apache Station 1 2002ARP 0.836 0.1458 194.424 AZ Apache Station 1 2001ARP 0.887 0.1384 204.73 AZ Apache Station 2 2011ARP 1781.889 0.355 2004.775 AZ Apache Station 2 2010ARP 1906.292 0.3488 1931.59 AZ Apache Station 2 2009ARP 2136.714 0.3765 2406.222 AZ Apache Station 2 2008ARP 991.318 0.3883 2934.511 AZ Apache Station 2 2007ARP 1555.098 0.4667 4113.934 AZ Apache Station 2 2006ARP 1714.6 0.4643 4112.83 AZ Apache Station 2 2005ARP 1367.768 0.4718 3687.488 AZ Apache Station 2 2004ARP 1525.08 0.4845 4266.291 AZ Apache Station 2 2003ARP 3716.487 0.4724 3743.526 AZ Apache Station 2 2002ARP 2720.807 0.4468 3398.647 AZ Apache Station 2 2001ARP 2460.939 0.4674 3485.325 AZ Apache Station 3 2011ARP 2129.884 0.4376 2628.354 AZ Apache Station 3 2010ARP 2682.065 0.4454 3077.442 AZ Apache Station 3 2009ARP 2050.679 0.4359 2517.309 AZ Apache Station 3 2008ARP 1462.047 0.4312 3786.325 AZ Apache Station 3 2007ARP 1106.704 0.4159 3736.292 AZ Apache Station 3 2006ARP 1304.079 0.4383 3434.281 AZ Apache Station 3 2005ARP 1286.888 0.4372 3946.048 AZ Apache Station 3 2004ARP 1394.683 0.434 3304.612 AZ Apache Station 3 2003ARP 4141.754 0.4384 3492.01 AZ Apache Station 3 2002ARP 2445.204 0.4222 2934.669 AZ Apache Station 3 2001ARP 2925.965 0.4361 3548.22 AZ Apache Station 4 2011ARP 0.052 0.0683 4.298 AZ Apache Station 4 2010ARP 0.117 0.04 5.329 AZ Apache Station 4 2009ARP 0.135 0.0378 5.588 AZ Apache Station 4 2008ARP 0.32 0.0348 3.84 AZ Apache Station 4 2007ARP 0.147 0.0383 7.061 AZ Apache Station 4 2006ARP 0.357 0.0392 5.541 AZ Apache Station 4 2005ARP 1.889 0.0368 5.885 AZ Apache Station 4 2004ARP 1.008 0.0352 7.62 AZ Apache Station 4 2003ARP 0.359 0.0227 6.262 AZ Apache Station 4 2002ARP 0.027 0.0165 0.687 AZ Cholla 1 2011ARP 1047.117 0.2203 1135.137 AZ Cholla 1 2010ARP 831.408 0.1996 1109.664AZ Cholla 1 2009ARP 494.479 0.1949 893.278

AZ Cholla 1 2008ARP 525.981 0.1688 869.888 AZ Cholla 1 2007ARP 791.164 0.3784 1633.325 AZ Cholla 1 2006ARP 851.489 0.3716 1848.03 AZ Cholla 1 2005ARP 777.835 0.3442 1679.79 AZ Cholla 1 2004ARP 712.542 0.3565 1596.299 AZ Cholla 1 2003ARP 789.016 0.3556 1762.154 AZ Cholla 1 2002ARP 961.461 0.3682 1857.402 AZ Cholla 1 2001ARP 742.417 0.3712 1544.903 AZ Cholla 2 2011ARP 1994.338 0.2947 3118.422 AZ Cholla 2 2010ARP 1672.532 0.3134 2703.968 AZ Cholla 2 2009ARP 1458.319 0.3143 3302.626 AZ Cholla 2 2008ARP 1537.372 0.3189 3283.513 AZ Cholla 2 2007ARP 1598.814 0.3552 4190.663 AZ Cholla 2 2006ARP 1379.239 0.3346 3681.506 AZ Cholla 2 2005ARP 1044.914 0.3404 3271.52 AZ Cholla 2 2004ARP 951.08 0.3048 3287.868 AZ Cholla 2 2003ARP 1396.32 0.3257 3692.054 AZ Cholla 2 2002ARP 1420.385 0.3197 3374.941 AZ Cholla 2 2001ARP 1207.669 0.3351 3948.138 AZ Cholla 3 2011ARP 1613.331 0.2544 2833.144 AZ Cholla 3 2010ARP 1858.903 0.1973 2372.234 AZ Cholla 3 2009ARP 3562.475 0.2198 2203.887 AZ Cholla 3 2008ARP 10319.04 0.3341 4003.623 AZ Cholla 3 2007ARP 10114.8 0.3376 3991.533 AZ Cholla 3 2006ARP 8726.477 0.3431 3573.804 AZ Cholla 3 2005ARP 9589.86 0.3158 3751.993 AZ Cholla 3 2004ARP 8927.617 0.3058 3319.167 AZ Cholla 3 2003ARP 4233.081 0.3099 1654.257 AZ Cholla 3 2002ARP 8830.908 0.317 3393.391 AZ Cholla 3 2001ARP 9598.216 0.2853 3380.133 AZ Cholla 4 2011ARP 2083.486 0.2601 3908.761 AZ Cholla 4 2010ARP 2131.284 0.1854 2551.576 AZ Cholla 4 2009ARP 2440.653 0.1783 2811.506 AZ Cholla 4 2008ARP 4039.132 0.2204 3004.521 AZ Cholla 4 2007ARP 11017.64 0.3319 5390.19 AZ Cholla 4 2006ARP 10189.69 0.3672 5631.249 AZ Cholla 4 2005ARP 10614.55 0.3649 6097.474 AZ Cholla 4 2004ARP 7649.601 0.3235 4356.58 AZ Cholla 4 2003ARP 10728.87 0.3219 5425.139 AZ Cholla 4 2002ARP 9557.383 0.2929 4255.365 AZ Cholla 4 2001ARP 9500.579 0.2742 4417.015 AZ Coronado Generating Station U1B 2011ARP 5085.876 0.3011 5013.565 AZ Coronado Generating Station U1B 2010ARP 5960.144 0.2958 5231.826 AZ Coronado Generating Station U1B 2009ARP 5154.739 0.332 4694.974 AZ Coronado Generating Station U1B 2008ARP 7977.061 0.4076 7314.124 AZ Coronado Generating Station U1B 2007ARP 9441.971 0.4126 7305.454AZ Coronado Generating Station U1B 2006ARP 7628.814 0.3703 6566.009

AZ Coronado Generating Station U1B 2005ARP 5473.318 0.4276 7373.534 AZ Coronado Generating Station U1B 2004ARP 6730.837 0.4039 6108.849 AZ Coronado Generating Station U1B 2003ARP 9635.114 0.3957 6666.88 AZ Coronado Generating Station U1B 2002ARP 7808.663 0.3997 5236.936 AZ Coronado Generating Station U1B 2001ARP 9546.39 0.4285 7151.464 AZ Coronado Generating Station U2B 2011ARP 2266.055 0.3313 5172.338 AZ Coronado Generating Station U2B 2010ARP 5761.927 0.4195 7393.632 AZ Coronado Generating Station U2B 2009ARP 6091.042 0.433 7438.784 AZ Coronado Generating Station U2B 2008ARP 7921.06 0.4378 7690.433 AZ Coronado Generating Station U2B 2007ARP 7438.759 0.4542 6784.152 AZ Coronado Generating Station U2B 2006ARP 5886.657 0.4232 6188.191 AZ Coronado Generating Station U2B 2005ARP 5003.111 0.4339 6774.394 AZ Coronado Generating Station U2B 2004ARP 7214.459 0.4533 7270.126 AZ Coronado Generating Station U2B 2003ARP 9179.355 0.4613 7485.415 AZ Coronado Generating Station U2B 2002ARP 9918.551 0.4329 6695.784 AZ Coronado Generating Station U2B 2001ARP 9501.259 0.4272 7078.385CO2 (tons) Heat Input (MMBtu) Operating Time# of Months Reported Gross Load (MW-h) EPA Region NERC Region

1358.862 22848.922 169.5 12 1504.44 9 4174.035 70289.596 276.06 12 5895.2 9 30406.565 511657.357 1527.92 12 43036.36 9 30208.078 508284.697 1460.93 12 43677.11 9 46337.208 779702.877 1777.39 12 70829.33 9 34482.348 580200.248 1485.74 12 53517.09 9 43406.811 730426.33 1939.45 12 68133.05 9 37706.13 634473.318 1552.69 12 57201.43 9 103336.696 1738814.55 4043.25 12 148175 9 165709.003 2788342.825 5214 12 248974.25 9 175657.315 2955758.6 5245.25 12 285988.75 9 1119332.41 1.10E+07 8576.64 12 1079534.28 9 1102167.608 1.09E+07 7719.62 12 1055262.08 9 1284076.687 1.26E+07 7899.65 12 1183198.42 9 1527333.192 1.49E+07 7605.91 12 1383175.19 9 1798359.471 1.75E+07 8667.47 12 1618040.51 9 1813210.323 1.77E+07 8735.58 12 1647245.06 9 1584690.603 1.55E+07 7687.47 12 1434553.33 9 1794359.67 1.75E+07 8644.2 12 1611340.15 9 1595090.775 1.56E+07 8071.25 12 1458537.25 9 1514137.325 1.49E+07 8543.75 12 1413303.75 9 1482555.775 1.47E+07 7816.25 12 1401559.75 9 1198075.988 1.18E+07 7367.34 12 1131108.51 9 1385065.853 1.37E+07 8538.78 12 1360388.03 9 1136808.207 1.12E+07 7155.51 12 1091407.87 9 1793131.98 1.75E+07 8694.63 12 1653169.64 9 1839581.445 1.79E+07 8699.91 12 1679130.34 9 1578142.18 1.54E+07 7603.04 12 1422074.65 9 1845631.224 1.80E+07 8689.05 12 1655034.4 9 1547966.509 1.51E+07 7577.03 12 1426793.34 9 1614556.625 1.58E+07 8617.5 12 1601795.5 9 1383705.025 1.35E+07 7834.5 12 1353124 9 1646690.825 1.61E+07 8640.25 12 1619094.5 9 10243.928 172367.606 746.59 12 13039.87 9 23203.872 390487.995 1590.54 12 31544.46 9 26758.559 450246.868 1590.42 12 37384.25 9 19112.384 321913.698 1108.48 12 28226.62 9 29203.204 491383.929 1558.79 12 44678 9 26956.479 453431.374 1456.36 12 41039.6 9 33431.616 561532.142 1701.82 12 53019.97 9 33801.062 568173.243 1719.55 12 50163 9 43142.746 725373.78 2066.81 12 68826.72 9 5279.067 88827.65 239.07 3 8269.6 9 1064261.878 1.04E+07 7958.73 12 937745.74 9WECC 1157384.342 1.13E+07 8596.02 12 1002569.8 9WECC957925.173 9336204.073 7288.42 12 812700.57 9WECC

1079476.021 1.05E+07 8519.93 12 946343.6 9WECC 894669.09 8721248.96 7591.37 12 836341.67 9WECC 1030006.199 1.00E+07 8611.42 12 982707.66 9WECC 1009828.551 9838846.745 8583.49 12 963699.7 9WECC 925585.81 9026754.999 8141.33 12 872842.91 9WECC 1023234.812 9979442.698 8578.84 12 924475.09 9WECC 1039269.665 1.01E+07 8447.99 12 887617.61 9WECC 846698.375 8255931.409 6842.78 12 724893.18 9WECC 2202568.686 2.15E+07 8461.7 12 2,136,444 9WECC 1775046.424 1.73E+07 6772.81 12 1772175.49 9WECC 2172551.694 2.12E+07 8151.3 12 2112552.16 9WECC 2127037.042 2.07E+07 7772.53 12 2065455.02 9WECC 2423278.091 2.36E+07 8698.85 12 2388114.45 9WECC 2248875.592 2.19E+07 8293.12 12 2229626.78 9WECC 1971299.57 1.92E+07 7399.37 12 1885655.13 9WECC 2222787.275 2.17E+07 8503.84 12 1977930.23 9WECC 2345753.796 2.29E+07 8451.27 12 1978986.01 9WECC 2174596.773 2.12E+07 7412.53 12 1745919.68 9WECC 2379150.034 2.32E+07 7966.22 12 1915534.87 9WECC 2278656.927 2.22E+07 7877.85 12 1982291.25 9WECC 2485912.769 2.42E+07 8303.19 12 2167865.07 9WECC 2081662.5 2.03E+07 7029.05 12 1882605.06 9WECC 2466661.694 2.39E+07 8454.88 12 2375016.49 9WECC 2417227.005 2.36E+07 8496.44 12 2355619.46 9WECC 2128822.603 2.07E+07 7588.28 12 2054589.47 9WECC 2418879.241 2.36E+07 8698.39 12 2236226.44 9WECC 2210833.751 2.15E+07 8692.24 12 2039976.9 9WECC 1075246.304 1.05E+07 4225.51 12 975222.39 9WECC 2202917.472 2.15E+07 8540.28 12 1971351.01 9WECC 2409427.079 2.35E+07 8294.63 12 2171618.78 9WECC 3060015.542 2.98E+07 8219.84 12 2942979.55 9WECC 2821160.211 2.75E+07 7965.81 12 2873438.28 9WECC 3229122.972 3.15E+07 8525.23 12 3145295.14 9WECC 2832032.104 2.75E+07 7337.38 12 2752276.71 9WECC 3306049.102 3.22E+07 8487.51 12 3160634.11 9WECC 3118570.429 3.04E+07 8389.46 12 3025649.02 9WECC 3406570.436 3.32E+07 8590.43 12 3250057.95 9WECC 2716478.614 2.65E+07 7059.58 12 2553660.12 9WECC 3420236.088 3.33E+07 8512.63 12 3134072.78 9WECC 2933904.742 2.86E+07 7997.01 12 2778075.56 9WECC 3257004.07 3.18E+07 8293.07 12 3028819.67 9WECC 3430073.551 3.27E+07 8421.62 12 3305777.44 9WECC 3663079.516 3.49E+07 8570.13 12 3496928.91 9WECC 2887854.215 2.75E+07 7051.01 12 2782581.4 9WECC 3697138.811 3.54E+07 8542.55 12 3502540.57 9WECC 3587125.485 3.50E+07 8441.84 12 3481294.27 9WECC3604914.192 3.51E+07 8578.89 12 3476200.14 9WECC

3502811.863 3.41E+07 8486.52 12 3432464.93 9WECC 3057907.305 2.98E+07 7726.26 12 3080291.23 9WECC 3423731.274 3.34E+07 8488.58 12 3367654.25 9WECC 2638379.526 2.57E+07 7740.21 12 2755226.16 9WECC 3386739.156 3.30E+07 7872.78 12 3140456.08 9WECC 3164482.16 3.02E+07 7352.48 12 2882028.92 9WECC 3644194.521 3.47E+07 8475.57 12 3512527.34 9WECC 3567091.016 3.40E+07 8507.58 12 3481926.41 9WECC 3623146.743 3.47E+07 8497.02 12 3527003.47 9WECC 3023611.159 2.95E+07 7313.64 12 3006794.81 9WECC 2951677.422 2.88E+07 7871.55 12 3104295.38 9WECC 3174190.034 3.09E+07 8596.13 12 3379967.54 9WECC 3267827.655 3.19E+07 8645.35 12 3405836.89 9WECC 3299111.238 3.22E+07 8045.77 12 3117934.6 9WECC 3066213.334 2.99E+07 8311.19 12 2946143.42 9WECC 3393182.053 3.31E+07 8626.13 12 3428280.75 9WECCCounty Source Category SIC Code SIC Code Description

Facility Latitude

Facility Longitude

Owner Operator SO2 PhaseNOx Phase

Cochise Electric Utility 4911Electric Services 32.0619 -109.893Arizona Electric Power Cooperative (Owner/Operator) Arizona Electric Power Cooperative

Phase 2 Cochise Electric Utility 4911Electric Services 32.0619 -109.893Arizona Electric Power Cooperative (Owner/Operator) Arizona Electric Power Cooperative

Phase 2 Cochise Electric Utility 4911Electric Services 32.0619 -109.893Arizona Electric Power Cooperative (Owner/Operator) Arizona Electric Power Cooperative

Phase 2 Cochise Electric Utility 4911Electric Services 32.0619 -109.893Arizona Electric Power Cooperative (Owner/Operator) Arizona Electric Power Cooperative

Phase 2 Cochise Electric Utility 4911Electric Services 32.0619 -109.893Arizona Electric Power Cooperative (Owner/Operator) Arizona Electric Power Cooperative

Phase 2 Cochise Electric Utility 4911Electric Services 32.0619 -109.893Arizona Electric Power Cooperative (Owner/Operator) Arizona Electric Power Cooperative

Phase 2 Cochise Electric Utility 4911Electric Services 32.0619 -109.893Arizona Electric Power Cooperative (Owner/Operator) Arizona Electric Power Cooperative

Phase 2 Cochise Electric Utility 4911Electric Services 32.0619 -109.893Arizona Electric Power Cooperative (Owner/Operator) Arizona Electric Power Cooperative

Phase 2 Cochise Electric Utility 4911Electric Services 32.0619 -109.893Arizona Electric Power Cooperative (Owner/Operator) Arizona Electric Power Cooperative

Phase 2 Cochise Electric Utility 4911Electric Services 32.0619 -109.893 Phase 2 Cochise Electric Utility 4911Electric Services 32.0619 -109.893 Phase 2 Cochise Electric Utility 4911Electric Services 32.0619 -109.893Arizona Electric Power Cooperative (Owner/Operator) Arizona Electric Power Cooperative

Phase 2 Early Election Cochise Electric Utility 4911Electric Services 32.0619 -109.893Arizona Electric Power Cooperative (Owner/Operator) Arizona Electric Power Cooperative

Phase 2 Early Election Cochise Electric Utility 4911Electric Services 32.0619 -109.893Arizona Electric Power Cooperative (Owner/Operator) Arizona Electric Power Cooperative

Phase 2 Early Election Cochise Electric Utility 4911Electric Services 32.0619 -109.893Arizona Electric Power Cooperative (Owner/Operator) Arizona Electric Power Cooperative

Phase 2 Early Election Cochise Electric Utility 4911Electric Services 32.0619 -109.893Arizona Electric Power Cooperative (Owner/Operator) Arizona Electric Power Cooperative

Phase 2 Early Election Cochise Electric Utility 4911Electric Services 32.0619 -109.893Arizona Electric Power Cooperative (Owner/Operator) Arizona Electric Power Cooperative

Phase 2 Early Election Cochise Electric Utility 4911Electric Services 32.0619 -109.893Arizona Electric Power Cooperative (Owner/Operator) Arizona Electric Power Cooperative

Phase 2 Early Election Cochise Electric Utility 4911Electric Services 32.0619 -109.893Arizona Electric Power Cooperative (Owner/Operator) Arizona Electric Power Cooperative

Phase 2 Early Election Cochise Electric Utility 4911Electric Services 32.0619 -109.893Arizona Electric Power Cooperative (Owner/Operator) Arizona Electric Power Cooperative

Phase 2 Early Election Cochise Electric Utility 4911Electric Services 32.0619 -109.893Arizona Electric Power Cooperative (Operator) (Ended Dec 31, 2002) Arizona Electric Power Cooperative (Ended Dec 31, 2002)

Phase 2 Early Election Cochise Electric Utility 4911Electric Services 32.0619 -109.893Arizona Electric Power Cooperative (Operator) Arizona Electric Power Cooperative

Phase 2 Early Election Cochise Electric Utility 4911Electric Services 32.0619 -109.893Arizona Electric Power Cooperative (Owner/Operator) Arizona Electric Power Cooperative

Phase 2 Early Election Cochise Electric Utility 4911Electric Services 32.0619 -109.893Arizona Electric Power Cooperative (Owner/Operator) Arizona Electric Power Cooperative

Phase 2 Early Election Cochise Electric Utility 4911Electric Services 32.0619 -109.893Arizona Electric Power Cooperative (Owner/Operator) Arizona Electric Power Cooperative

Phase 2 Early Election Cochise Electric Utility 4911Electric Services 32.0619 -109.893Arizona Electric Power Cooperative (Owner/Operator) Arizona Electric Power Cooperative

Phase 2 Early Election Cochise Electric Utility 4911Electric Services 32.0619 -109.893Arizona Electric Power Cooperative (Owner/Operator) Arizona Electric Power Cooperative

Phase 2 Early Election Cochise Electric Utility 4911Electric Services 32.0619 -109.893Arizona Electric Power Cooperative (Owner/Operator) Arizona Electric Power Cooperative

Phase 2 Early Election Cochise Electric Utility 4911Electric Services 32.0619 -109.893Arizona Electric Power Cooperative (Owner/Operator) Arizona Electric Power Cooperative

Phase 2 Early Election Cochise Electric Utility 4911Electric Services 32.0619 -109.893Arizona Electric Power Cooperative (Owner/Operator) Arizona Electric Power Cooperative

Phase 2 Early Election Cochise Electric Utility 4911Electric Services 32.0619 -109.893Arizona Electric Power Cooperative (Owner/Operator) Arizona Electric Power Cooperative

Phase 2 Early Election Cochise Electric Utility 4911Electric Services 32.0619 -109.893Arizona Electric Power Cooperative (Operator) (Ended Dec 31, 2002) Arizona Electric Power Cooperative (Ended Dec 31, 2002)

Phase 2 Early Election Cochise Electric Utility 4911Electric Services 32.0619 -109.893Arizona Electric Power Cooperative (Operator) Arizona Electric Power Cooperative

Phase 2 Early Election Cochise Electric Utility 4911Electric Services 32.0619 -109.893Arizona Electric Power Cooperative (Owner/Operator) Arizona Electric Power Cooperative

Phase 2 Cochise Electric Utility 4911Electric Services 32.0619 -109.893Arizona Electric Power Cooperative (Owner/Operator) Arizona Electric Power Cooperative

Phase 2 Cochise Electric Utility 4911Electric Services 32.0619 -109.893Arizona Electric Power Cooperative (Owner/Operator) Arizona Electric Power Cooperative

Phase 2 Cochise Electric Utility 4911Electric Services 32.0619 -109.893Arizona Electric Power Cooperative (Owner/Operator) Arizona Electric Power Cooperative

Phase 2 Cochise Electric Utility 4911Electric Services 32.0619 -109.893Arizona Electric Power Cooperative (Owner/Operator) Arizona Electric Power Cooperative

Phase 2 Cochise Electric Utility 4911Electric Services 32.0619 -109.893Arizona Electric Power Cooperative (Owner/Operator) Arizona Electric Power Cooperative

Phase 2 Cochise Electric Utility 4911Electric Services 32.0619 -109.893Arizona Electric Power Cooperative (Owner/Operator) Arizona Electric Power Cooperative

Phase 2 Cochise Electric Utility 4911Electric Services 32.0619 -109.893Arizona Electric Power Cooperative (Owner/Operator) Arizona Electric Power Cooperative

Phase 2 Cochise Electric Utility 4911Electric Services 32.0619 -109.893Arizona Electric Power Cooperative (Owner/Operator) Arizona Electric Power Cooperative

Phase 2 Cochise Electric Utility 4911Electric Services 32.0619 -109.893 Phase 2 Navajo Electric Utility 4911Electric Services 34.9394 -110.303Arizona Public Service Company (Owner/Operator) Arizona Public Service Company

Phase 2 Early Election Navajo Electric Utility 4911Electric Services 34.9394 -110.303Arizona Public Service Company (Owner/Operator) Arizona Public Service Company

Phase 2 Early ElectionNavajo Electric Utility 4911Electric Services 34.9394 -110.303Arizona Public Service Company (Owner/Operator) Arizona Public Service Company

Phase 2 Early Election Navajo Electric Utility 4911Electric Services 34.9394 -110.303Arizona Public Service Company (Owner/Operator) Arizona Public Service Company

Phase 2 Early Election Navajo Electric Utility 4911Electric Services 34.9394 -110.303Arizona Public Service Company (Owner/Operator) Arizona Public Service Company

Phase 2 Early Election Navajo Electric Utility 4911Electric Services 34.9394 -110.303Arizona Public Service Company (Owner/Operator) Arizona Public Service Company

Phase 2 Early Election Navajo Electric Utility 4911Electric Services 34.9394 -110.303Arizona Public Service Company (Owner/Operator) Arizona Public Service Company

Phase 2 Early Election Navajo Electric Utility 4911Electric Services 34.9394 -110.303Arizona Public Service Company (Owner/Operator) Arizona Public Service Company

Phase 2 Early Election Navajo Electric Utility 4911Electric Services 34.9394 -110.303Arizona Public Service Company (Owner/Operator) Arizona Public Service Company

Phase 2 Early Election Navajo Electric Utility 4911Electric Services 34.9394 -110.303Arizona Public Service Company (Operator) (Ended Dec 31, 2002) Arizona Public Service Company (Ended Dec 31, 2002)

Phase 2 Early Election Navajo Electric Utility 4911Electric Services 34.9394 -110.303Arizona Public Service Company (Operator) Arizona Public Service Company

Phase 2 Early Election Navajo Electric Utility 4911Electric Services 34.9394 -110.303Arizona Public Service Company (Owner/Operator) Arizona Public Service Company

Phase 2 Early Election Navajo Electric Utility 4911Electric Services 34.9394 -110.303Arizona Public Service Company (Owner/Operator) Arizona Public Service Company

Phase 2 Early Election Navajo Electric Utility 4911Electric Services 34.9394 -110.303Arizona Public Service Company (Owner/Operator) Arizona Public Service Company

Phase 2 Early Election Navajo Electric Utility 4911Electric Services 34.9394 -110.303Arizona Public Service Company (Owner/Operator) Arizona Public Service Company

Phase 2 Early Election Navajo Electric Utility 4911Electric Services 34.9394 -110.303Arizona Public Service Company (Owner/Operator) Arizona Public Service Company

Phase 2 Early Election Navajo Electric Utility 4911Electric Services 34.9394 -110.303Arizona Public Service Company (Owner/Operator) Arizona Public Service Company

Phase 2 Early Election Navajo Electric Utility 4911Electric Services 34.9394 -110.303Arizona Public Service Company (Owner/Operator) Arizona Public Service Company

Phase 2 Early Election Navajo Electric Utility 4911Electric Services 34.9394 -110.303Arizona Public Service Company (Owner/Operator) Arizona Public Service Company

Phase 2 Early Election Navajo Electric Utility 4911Electric Services 34.9394 -110.303Arizona Public Service Company (Owner/Operator) Arizona Public Service Company

Phase 2 Early Election Navajo Electric Utility 4911Electric Services 34.9394 -110.303Arizona Public Service Company (Operator) (Ended Dec 31, 2002) Arizona Public Service Company (Ended Dec 31, 2002)

Phase 2 Early Election Navajo Electric Utility 4911Electric Services 34.9394 -110.303Arizona Public Service Company (Operator) Arizona Public Service Company

Phase 2 Early Election Navajo Electric Utility 4911Electric Services 34.9394 -110.303Arizona Public Service Company (Owner/Operator) Arizona Public Service Company

Phase 2 Early Election Navajo Electric Utility 4911Electric Services 34.9394 -110.303Arizona Public Service Company (Owner/Operator) Arizona Public Service Company

Phase 2 Early Election Navajo Electric Utility 4911Electric Services 34.9394 -110.303Arizona Public Service Company (Owner/Operator) Arizona Public Service Company

Phase 2 Early Election Navajo Electric Utility 4911Electric Services 34.9394 -110.303Arizona Public Service Company (Owner/Operator) Arizona Public Service Company

Phase 2 Early Election Navajo Electric Utility 4911Electric Services 34.9394 -110.303Arizona Public Service Company (Owner/Operator) Arizona Public Service Company

Phase 2 Early Election Navajo Electric Utility 4911Electric Services 34.9394 -110.303Arizona Public Service Company (Owner/Operator) Arizona Public Service Company

Phase 2 Early Election Navajo Electric Utility 4911Electric Services 34.9394 -110.303Arizona Public Service Company (Owner/Operator) Arizona Public Service Company

Phase 2 Early Election Navajo Electric Utility 4911Electric Services 34.9394 -110.303Arizona Public Service Company (Owner/Operator) Arizona Public Service Company

Phase 2 Early Election Navajo Electric Utility 4911Electric Services 34.9394 -110.303Arizona Public Service Company (Owner/Operator) Arizona Public Service Company

Phase 2 Early Election Navajo Electric Utility 4911Electric Services 34.9394 -110.303Arizona Public Service Company (Operator) (Ended Dec 31, 2002) Arizona Public Service Company (Ended Dec 31, 2002)

Phase 2 Early Election Navajo Electric Utility 4911Electric Services 34.9394 -110.303Arizona Public Service Company (Operator) Arizona Public Service Company

Phase 2 Early Election Navajo Electric Utility 4911Electric Services 34.9394 -110.303Arizona Public Service Company (Operator)<br>Pacificorp Energy Generation (Owner) Arizona Public Service Company

Phase 2 Early Election Navajo Electric Utility 4911Electric Services 34.9394 -110.303Arizona Public Service Company (Operator)<br>Pacificorp Energy Generation (Owner) Arizona Public Service Company

Phase 2 Early Election Navajo Electric Utility 4911Electric Services 34.9394 -110.303Arizona Public Service Company (Operator)<br>Pacificorp Energy Generation (Owner) Arizona Public Service Company

Phase 2 Early Election Navajo Electric Utility 4911Electric Services 34.9394 -110.303Arizona Public Service Company (Operator)<br>Pacificorp Energy Generation (Owner) Arizona Public Service Company

Phase 2 Early Election Navajo Electric Utility 4911Electric Services 34.9394 -110.303Arizona Public Service Company (Operator)<br>Pacificorp Energy Generation (Owner) Arizona Public Service Company

Phase 2 Early Election Navajo Electric Utility 4911Electric Services 34.9394 -110.303Arizona Public Service Company (Operator)<br>Pacificorp Energy Generation (Owner) Arizona Public Service Company

Phase 2 Early Election Navajo Electric Utility 4911Electric Services 34.9394 -110.303Arizona Public Service Company (Operator)<br>Pacificorp Energy Generation (Owner) Arizona Public Service Company

Phase 2 Early Election Navajo Electric Utility 4911Electric Services 34.9394 -110.303Arizona Public Service Company (Operator)<br>Pacificorp Energy Generation (Owner) Arizona Public Service Company

Phase 2 Early Election Navajo Electric Utility 4911Electric Services 34.9394 -110.303Arizona Public Service Company (Operator)<br>Pacificorp Energy Generation (Owner) Arizona Public Service Company

Phase 2 Early Election Navajo Electric Utility 4911Electric Services 34.9394 -110.303Arizona Public Service Company (Operator) (Ended Dec 31, 2002) Arizona Public Service Company (Ended Dec 31, 2002)

Phase 2 Early Election Navajo Electric Utility 4911Electric Services 34.9394 -110.303Arizona Public Service Company (Operator) Arizona Public Service Company

Phase 2 Early Election Apache Electric Utility 4911Electric Services 34.5778 -109.272Salt River Project (Owner/Operator) Salt River Project

Phase 2 Early Election Apache Electric Utility 4911Electric Services 34.5778 -109.272Salt River Project (Owner/Operator) Salt River Project

Phase 2 Early Election Apache Electric Utility 4911Electric Services 34.5778 -109.272Salt River Project (Owner/Operator) Salt River Project

Phase 2 Early Election Apache Electric Utility 4911Electric Services 34.5778 -109.272Salt River Project (Owner/Operator) Salt River Project

Phase 2 Early Election Apache Electric Utility 4911Electric Services 34.5778 -109.272Salt River Project (Owner/Operator) Salt River Project

Phase 2 Early ElectionApache Electric Utility 4911Electric Services 34.5778 -109.272Salt River Project (Owner/Operator) Salt River Project

Phase 2 Early Election Apache Electric Utility 4911Electric Services 34.5778 -109.272Salt River Project (Owner/Operator) Salt River Project

Phase 2 Early Election Apache Electric Utility 4911Electric Services 34.5778 -109.272Salt River Project (Owner/Operator) Salt River Project

Phase 2 Early Election Apache Electric Utility 4911Electric Services 34.5778 -109.272Salt River Project (Owner/Operator) Salt River Project

Phase 2 Early Election Apache Electric Utility 4911Electric Services 34.5778 -109.272Salt River Project (Operator) (Ended Dec 31, 2002) Salt River Project (Ended Dec 31, 2002)

Phase 2 Early Election Apache Electric Utility 4911Electric Services 34.5778 -109.272Salt River Project (Operator) Salt River Project

Phase 2 Early Election Apache Electric Utility 4911Electric Services 34.5778 -109.272Salt River Project (Owner/Operator) Salt River Project

Phase 2 Early Election Apache Electric Utility 4911Electric Services 34.5778 -109.272Salt River Project (Owner/Operator) Salt River Project

Phase 2 Early Election Apache Electric Utility 4911Electric Services 34.5778 -109.272Salt River Project (Owner/Operator) Salt River Project

Phase 2 Early Election Apache Electric Utility 4911Electric Services 34.5778 -109.272Salt River Project (Owner/Operator) Salt River Project

Phase 2 Early Election Apache Electric Utility 4911Electric Services 34.5778 -109.272Salt River Project (Owner/Operator) Salt River Project

Phase 2 Early Election Apache Electric Utility 4911Electric Services 34.5778 -109.272Salt River Project (Owner/Operator) Salt River Project

Phase 2 Early Election Apache Electric Utility 4911Electric Services 34.5778 -109.272Salt River Project (Owner/Operator) Salt River Project

Phase 2 Early Election Apache Electric Utility 4911Electric Services 34.5778 -109.272Salt River Project (Owner/Operator) Salt River Project

Phase 2 Early Election Apache Electric Utility 4911Electric Services 34.5778 -109.272Salt River Project (Owner/Operator) Salt River Project

Phase 2 Early Election Apache Electric Utility 4911Electric Services 34.5778 -109.272Salt River Project (Operator) (Ended Dec 31, 2002) Salt River Project (Ended Dec 31, 2002)

Phase 2 Early Election Apache Electric Utility 4911Electric Services 34.5778 -109.272Salt River Project (Operator) Salt River Project

Phase 2 Early ElectionOperating Status

Unit Type Fuel Type (Primary) Fuel Type (Secondary) SO2 Control(s)

Operating Dry bottom wall-fired boiler Pipeline Natural Gas Operating Dry bottom wall-fired boiler Pipeline Natural Gas Operating Dry bottom wall-fired boiler Pipeline Natural Gas Operating Dry bottom wall-fired boiler Pipeline Natural Gas Operating Dry bottom wall-fired boiler Pipeline Natural Gas Operating Dry bottom wall-fired boiler Pipeline Natural Gas Operating Dry bottom wall-fired boiler Pipeline Natural Gas Operating Dry bottom wall-fired boiler Pipeline Natural Gas Operating Dry bottom wall-fired boiler Pipeline Natural Gas Operating Dry bottom wall-fired boiler Pipeline Natural Gas Operating Dry bottom wall-fired boiler Pipeline Natural Gas Operating Dry bottom turbo-fired boiler Coal Pipeline Natural Gas Wet Lime FGD Operating Dry bottom turbo-fired boiler Coal Pipeline Natural Gas Wet Lime FGD Operating Dry bottom turbo-fired boiler Coal Pipeline Natural Gas Wet Lime FGD Operating Dry bottom turbo-fired boiler Coal Pipeline Natural Gas Wet Lime FGD Operating Dry bottom turbo-fired boiler Coal Pipeline Natural Gas Wet Lime FGD Operating Dry bottom turbo-fired boiler Coal Pipeline Natural Gas Wet Lime FGD Operating Dry bottom turbo-fired boiler Coal Pipeline Natural Gas Wet Lime FGD Operating Dry bottom turbo-fired boiler Coal Pipeline Natural Gas Wet Lime FGD Operating Dry bottom turbo-fired boiler Coal Pipeline Natural Gas Wet Lime FGD Operating Dry bottom turbo-fired boiler Coal Pipeline Natural Gas Wet Lime FGD Operating Dry bottom turbo-fired boiler Coal Pipeline Natural Gas Wet Lime FGD Operating Dry bottom turbo-fired boiler Coal Pipeline Natural Gas Wet Lime FGD Operating Dry bottom turbo-fired boiler Coal Pipeline Natural Gas Wet Lime FGD Operating Dry bottom turbo-fired boiler Coal Pipeline Natural Gas Wet Lime FGD Operating Dry bottom turbo-fired boiler Coal Pipeline Natural Gas Wet Lime FGD Operating Dry bottom turbo-fired boiler Coal Pipeline Natural Gas Wet Lime FGD Operating Dry bottom turbo-fired boiler Coal Pipeline Natural Gas Wet Lime FGD Operating Dry bottom turbo-fired boiler Coal Pipeline Natural Gas Wet Lime FGD Operating Dry bottom turbo-fired boiler Coal Pipeline Natural Gas Wet Lime FGD Operating Dry bottom turbo-fired boiler Coal Pipeline Natural Gas Wet Lime FGD Operating Dry bottom turbo-fired boiler Coal Pipeline Natural Gas Wet Lime FGD Operating Dry bottom turbo-fired boiler Coal Pipeline Natural Gas Wet Lime FGD Operating Combustion turbine Pipeline Natural Gas Operating Combustion turbine Pipeline Natural Gas Operating Combustion turbine Pipeline Natural Gas Operating Combustion turbine Pipeline Natural Gas Operating Combustion turbine Pipeline Natural Gas Operating Combustion turbine Pipeline Natural Gas Operating Combustion turbine Pipeline Natural Gas Operating Combustion turbine Pipeline Natural Gas Operating Combustion turbine Pipeline Natural Gas Operating (Started 11/01/2002)

Combustion turbine (Started Nov 01, 2002) Pipeline Natural Gas Operating Tangentially-fired Coal Wet Lime FGD Operating Tangentially-fired Coal Wet Lime FGDOperating Tangentially-fired Coal Wet Lime FGD

Operating Tangentially-fired Coal Wet Lime FGD Operating Tangentially-fired Coal Natural Gas Wet Lime FGD Operating Tangentially-fired Coal Natural Gas Wet Lime FGD Operating Tangentially-fired Coal Natural Gas Wet Lime FGD Operating Tangentially-fired Coal Natural Gas Wet Lime FGD Operating Tangentially-fired Coal Natural Gas Wet Lime FGD Operating Tangentially-fired Coal Natural Gas Wet Lime FGD Operating Tangentially-fired Coal Natural Gas Wet Lime FGD Operating Tangentially-fired Coal Wet Lime FGD Operating Tangentially-fired Coal Wet Lime FGD Operating Tangentially-fired Coal Wet Lime FGD Operating Tangentially-fired Coal Wet Lime FGD Operating Tangentially-fired Coal Wet Lime FGD Operating Tangentially-fired Coal Wet Lime FGD Operating Tangentially-fired Coal Wet Lime FGD Operating Tangentially-fired Coal Wet Lime FGD Operating Tangentially-fired Coal Wet Lime FGD Operating Tangentially-fired Coal Wet Lime FGD Operating Tangentially-fired Coal Wet Lime FGD Operating Tangentially-fired Coal Wet Lime FGD Operating Tangentially-fired Coal Wet Lime FGD Operating Tangentially-fired Coal Wet Lime FGD (Began May 14, 2009) Operating Tangentially-fired Coal Operating Tangentially-fired Coal Operating Tangentially-fired Coal Operating Tangentially-fired Coal Operating Tangentially-fired Coal Operating Tangentially-fired Coal Operating Tangentially-fired Coal Operating Tangentially-fired Coal Operating Tangentially-fired Coal Wet Lime FGD Operating Tangentially-fired Coal Wet Lime FGD Operating Tangentially-fired Coal Wet Lime FGD Operating Tangentially-fired Coal Wet Lime FGD (Began Apr 01, 2008) Operating Tangentially-fired Coal Operating Tangentially-fired Coal Operating Tangentially-fired Coal Operating Tangentially-fired Coal Operating Tangentially-fired Coal Operating Tangentially-fired Coal Operating Tangentially-fired Coal Operating Dry bottom turbo-fired boiler Coal Diesel Oil Wet Limestone Operating Dry bottom turbo-fired boiler Coal Diesel Oil Wet Limestone Operating Dry bottom turbo-fired boiler Coal Diesel Oil Wet Limestone Operating Dry bottom turbo-fired boiler Coal Diesel Oil Wet Limestone Operating Dry bottom turbo-fired boiler Coal Diesel Oil Wet LimestoneOperating Dry bottom turbo-fired boiler Coal Diesel Oil Wet Limestone

Operating Dry bottom turbo-fired boiler Coal Diesel Oil Wet Limestone Operating Dry bottom turbo-fired boiler Coal Diesel Oil Wet Limestone Operating Dry bottom turbo-fired boiler Coal Diesel Oil Wet Limestone Operating Dry bottom turbo-fired boiler Coal Diesel Oil Wet Limestone Operating Dry bottom turbo-fired boiler Coal Diesel Oil Wet Limestone Operating Dry bottom turbo-fired boiler Coal Diesel Oil Wet Limestone (Began May 20, 2011)<br>Wet Limestone (Retired May 19, 2011) Operating Dry bottom turbo-fired boiler Coal Diesel Oil Wet Limestone Operating Dry bottom turbo-fired boiler Coal Diesel Oil Wet Limestone Operating Dry bottom turbo-fired boiler Coal Diesel Oil Wet Limestone Operating Dry bottom turbo-fired boiler Coal Diesel Oil Wet Limestone Operating Dry bottom turbo-fired boiler Coal Diesel Oil Wet Limestone Operating Dry bottom turbo-fired boiler Coal Diesel Oil Wet Limestone Operating Dry bottom turbo-fired boiler Coal Diesel Oil Wet Limestone Operating Dry bottom turbo-fired boiler Coal Diesel Oil Wet Limestone Operating Dry bottom turbo-fired boiler Coal Diesel Oil Wet Limestone Operating Dry bottom turbo-fired boiler Coal Diesel Oil Wet LimestoneNOx Control(s) PM Control(s)

Overfire Air Electrostatic Precipitator<br>Wet Scrubber Overfire Air Electrostatic Precipitator<br>Wet Scrubber Overfire Air Electrostatic Precipitator<br>Wet Scrubber Overfire Air Electrostatic Precipitator<br>Wet Scrubber Overfire Air Electrostatic Precipitator<br>Wet Scrubber Overfire Air Electrostatic Precipitator<br>Wet Scrubber Overfire Air Electrostatic Precipitator<br>Wet Scrubber Overfire Air Electrostatic Precipitator<br>Wet Scrubber Overfire Air Electrostatic Precipitator<br>Wet Scrubber Overfire Air Electrostatic Precipitator<br>Wet Scrubber Overfire Air Electrostatic Precipitator<br>Wet Scrubber Overfire Air Electrostatic Precipitator<br>Wet Scrubber Overfire Air Electrostatic Precipitator<br>Wet Scrubber Overfire Air Electrostatic Precipitator<br>Wet Scrubber Overfire Air Electrostatic Precipitator<br>Wet Scrubber Overfire Air Electrostatic Precipitator<br>Wet Scrubber Overfire Air Electrostatic Precipitator<br>Wet Scrubber Overfire Air Electrostatic Precipitator<br>Wet Scrubber Overfire Air Electrostatic Precipitator<br>Wet Scrubber Overfire Air Electrostatic Precipitator<br>Wet Scrubber Overfire Air Electrostatic Precipitator<br>Wet Scrubber Overfire Air Electrostatic Precipitator<br>Wet Scrubber Water Injection<br>Selective Catalytic Reduction Water Injection<br>Selective Catalytic Reduction Water Injection<br>Selective Catalytic Reduction Water Injection<br>Selective Catalytic Reduction Water Injection<br>Selective Catalytic Reduction Water Injection<br>Selective Catalytic Reduction Water Injection<br>Selective Catalytic Reduction Water Injection<br>Selective Catalytic Reduction Water Injection<br>Selective Catalytic Reduction Water Injection<br>Selective Catalytic Reduction Low NOx Burner Technology w/ Separated OFA Baghouse Low NOx Burner Technology w/ Separated OFA BaghouseLow NOx Burner Technology w/ Separated OFA Baghouse Low NOx Burner Technology w/ Separated OFA Baghouse Low NOx Burner Technology w/ Separated OFA (Began Nov 01, 2007) Cyclone (Retired Oct 31, 2007)<br>Wet Scrubber (Retired Oct 31, 2007)<br>Baghouse (Began Nov 01, 2007) Cyclone<br>Wet Scrubber Cyclone<br>Wet Scrubber Cyclone<br>Wet Scrubber Cyclone<br>Wet Scrubber Cyclone<br>Wet Scrubber Cyclone<br>Wet Scrubber Low NOx Burner Technology w/ Closed-coupled/Separated OFA Cyclone Low NOx Burner Technology w/ Closed-coupled/Separated OFA Cyclone Low NOx Burner Technology w/ Closed-coupled/Separated OFA Cyclone Low NOx Burner Technology w/ Closed-coupled/Separated OFA (Began Feb 29, 2008) Cyclone Cyclone Cyclone Cyclone Cyclone Cyclone Cyclone Cyclone Low NOx Burner Technology w/ Closed-coupled/Separated OFA Baghouse Low NOx Burner Technology w/ Closed-coupled/Separated OFA Baghouse Low NOx Burner Technology w/ Closed-coupled/Separated OFA (Began May 14, 2009) Baghouse (Began May 12, 2009)<br>Electrostatic Precipitator (Retired May 11, 2009) Electrostatic Precipitator Electrostatic Precipitator Electrostatic Precipitator Electrostatic Precipitator Electrostatic Precipitator Electrostatic Precipitator Electrostatic Precipitator Electrostatic Precipitator Low NOx Burner Technology w/ Closed-coupled/Separated OFA Baghouse Low NOx Burner Technology w/ Closed-coupled/Separated OFA Baghouse Low NOx Burner Technology w/ Closed-coupled/Separated OFA Baghouse Low NOx Burner Technology w/ Closed-coupled/Separated OFA (Began Apr 01, 2008) Baghouse (Began Apr 01, 2008)

Low NOx Burner Technology w/ Overfire Air Electrostatic Precipitator Low NOx Burner Technology w/ Overfire Air Electrostatic Precipitator Low NOx Burner Technology w/ Overfire Air (Began May 16, 2009)<br>Overfire Air (Retired May 16, 2009) Electrostatic Precipitator Overfire Air Electrostatic Precipitator Overfire Air Electrostatic PrecipitatorOverfire Air Electrostatic Precipitator

Overfire Air Electrostatic Precipitator Overfire Air Electrostatic Precipitator Overfire Air Electrostatic Precipitator Overfire Air Electrostatic Precipitator Overfire Air Electrostatic Precipitator Low NOx Burner Technology w/ Overfire Air (Began May 20, 2011)<br>Overfire Air (Retired May 20, 2011) Electrostatic Precipitator Overfire Air Electrostatic Precipitator Overfire Air Electrostatic Precipitator Overfire Air Electrostatic Precipitator Overfire Air Electrostatic Precipitator Overfire Air Electrostatic Precipitator Overfire Air Electrostatic Precipitator Overfire Air Electrostatic Precipitator Overfire Air Electrostatic Precipitator Overfire Air Electrostatic Precipitator Overfire Air Electrostatic PrecipitatorCyclone (Retired Oct 31, 2007)<br>Wet Scrubber (Retired Oct 31, 2007)<br>Baghouse (Began Nov 01, 2007)

Baghouse (Began May 12, 2009)<br>Electrostatic Precipitator (Retired May 11, 2009)**AEPCO Apache - SCR Control Cost Estimate (per AEPCO comment letter)**

**Parameter Units**  **Apache 2 Apache 3**  **Notes** SCR Capital Cost ($) $71,938,250 $71,938,250 1 LNB+OFA Capital Cost ($) $10,543,189 $10,543,189 2 SCR+LNB+OFA Capital Cost ($) $82,481,439 $82,481,439 

### Interest Rate % 7.0% 7.0% 

### Equipment Lifetime (years) 20 20 

### Capital Recovery Factor 0.094 0.094 2 Annualized Capital Cost ($/yr) $7,785,664 $7,785,664 Fixed O&M ($/yr) $466,000 $466,000 1 Variable O&M ($/yr) $1,294,600 $1,294,600 1 Total Annual O&M ($/yr) $1,760,600 $1,760,600 **Total Annual Cost ($/yr)**  **$9,546,264 $9,546,264** 

Heat Rate (MMBtu/hr) 2,316 2,223 2 Baseline Emission Rate (annual average) (lb/MMBtu) 0.371 0.438 1,2

SCR Emission Rate (annual average) (lb/MMBtu) 0.050 0.050 2 SCR Control Efficiency % 87% 89% Annual Capacity Factor 0.85 0.85 1 Baseline Emissions (tpy) 3,198 3,625 SCR Emissions (tpy) 431 414 **Emissions Removed (tpy)**  **2,767 3,211** 

Annual Cost ($/yr) $9,546,264 $9,546,264 Emissions Removed (tpy) 2,767 3,211 **Average Cost Effectiveness ($/ton)**  **$3,450 $2,973**  1 Per AEPCO Estimate 2 Per EPA estimate**APS Cholla - Control Cost Comparison (based on APS comment letter cost estimates)** APS costs not allowed by EPA Control Cost Manual APS costs allowed by EPA Control Cost Manual, but modified from original estimate

**Parameter Comments**  **Value %**  **Value %**  **Value %**  **Value %**  **Value %**  **Value %**  **Capital Costs Low NOx Burners + SOFA**  **Low NOx Burners + SOFA Low NOx Burners + SOFA** 

Major Materials Design and Supply $1,906,285 $1,906,285 $1,906,285 $1,906,285 $1,906,285 $1,906,285

Construction $2,385,340 $2,385,340 $2,385,340 $2,385,340 $2,385,340 $2,385,340 Balance of Plant $0 $0 $0 $0 $0 $0 Electrical (Allowance) $0 $0 $0 $0 $0 $0 Owner's Costs $620,343 $190,629 10% $620,343 $190,629 10% $620,343 $190,629 10%As noted in RTC, the Control Cost Manual provides for "Engineering and Home Office Fees" up to 10% of PEC. Owner's costs up to this value are included. Surcharge $156,741 $0 $156,741 $0 $156,741 $0 There is no provision for surcharge in the EPA Control Cost Manual AFUDC $0 $0 $0 $0 $0 $0 AFUDC is not allowed by the EPA Control Cost Manual Subtotal, LNB+OFA Capital Cost $5,068,709 $4,482,254 $5,068,709 $4,482,254 $5,068,709 $4,482,254 Contingency $0 $0 $0 $0 $0 $0 **Subtotal Capital Cost $5,068,709**  **$4,482,254 $5,068,709**  **$4,482,254 $5,068,709**  **$4,482,254 Selective Non-Catalytic Reduction (SNCR)**  **Selective Catalytic Reduction (SCR)** Major Materials Design and Supply $0 $0 $2,577,412 $2,577,412 $36,187,449 $36,187,449

Construction $0 $0 $8,110,283 $8,110,283 $18,093,725 50% $18,093,725 50% Balance of Plant $0 $0 $0 $0 $18,093,725 50% $18,093,725 50% Electrical (Allowance) $0 $0 $0 $0 $1,809,372 5% $1,809,372 5% Owner's Costs $0 $0 $1,209,806 $257,741 10% $3,618,745 10% $3,618,745 10%As noted in RTC, the Control Cost Manual provides for "Engineering and Home Office Fees" up to 10% of PEC. Owner's costs up to this value are included. Surcharge $0 $0 $1,520,818 $0 $1,757,624 $0 There is no provision for surcharge in the EPA Control Cost Manual AFUDC $0 $0 $1,399,780 $0 $9,322,098 $0 AFUDC is not allowed by the EPA Control Cost Manual, and specifically excluded for SCR Subtotal $0 $0 $14,818,099 $10,945,436 $88,882,737 $77,803,015 Contingency $0 $0 $1,189,718 $1,189,718 $5,428,117 15% $5,428,117 15% **Subtotal Capital Cost $0**  **$0 $16,007,817**  **$12,135,154 $94,310,855**  **$83,231,133 Total Capital Cost**  **$5,068,709 $4,482,254**  **$21,076,526 $16,617,408**  **$99,379,564 $87,713,386**  **Annual Costs Fixed O&M Costs**  Operating Labor $30,000 $30,000 $63,000 $63,000 $45,000 $45,000 Maintenance Materials $60,000 $60,000 $110,000 $110,000 $90,000 $90,000 Maintenance Labor $30,000 $30,000 $0 (incl) $0 (incl) $45,000 $45,000 Administrative Labor $0 $0 $0 $0 $0 $0 Subtotal, fixed O&M costs $120,000 $120,000 $173,000 $173,000 $180,000 $180,000 **Variable Costs** Makeup water $0 $0 $2,000 $2,000 $0 $0 Reagent $0 $0 $1,061,000 $1,061,000 $398,813 $398,813 Catalyst Replacement $0 $0 $0 $0 $450,000 $450,000 Waste Disposal $0 $0 $0 $0 $0 $0 Electric Power Cost $0 $0 $18,500 $18,500 $597,870 $597,870 Subtotal, variable costs $0 $0 $1,081,500 $1,081,500 $1,446,683 $1,446,683 Debt Service/Capital Recovery1 $738,960 $423,093 $3,072,717 $1,568,566 $14,488,408 $8,279,523 Regarding interest rates, EPA calculated capital recoveries using 3% and 7% interest rates in determining cost effectiveness for the Regulatory Impact Analysis for the Final Clean Air Visibility rule and the Guidelines for BART Determinations under the Regional Haze regulations. The EPA Control Cost Manual uses 7% interest rate in SCR example calculations (Section 4-2, Chap 2, p2-57). In addition, the CCM also recommends a 20 year economic lifetime for SCR (p2-57), although 30 year lifetimes have often been specified in certain BART and BACT analyses. **Total Annual Costs $858,960**  **$543,093 $4,327,217**  **$2,823,066 $16,115,091**  **$9,906,206**

1) Debt Service/Capital Recovery

Interest rate (%) = 13.4% 7.0% Equipment lifetime (years) = 20 20 **LNB with SOFA SNCR w/ LNB+SOFA**  **SCR w/ LNB+SOFA APS**  **EPA Revised APS**  **EPA Revised APS**  **EPA Revised APS Cholla - Control Cost Comparison (based on APS comment letter cost estimates)**  APS costs not allowed by EPA Control Cost Manual APS costs allowed by EPA Control Cost Manual, but modified from original estimate

**Parameter Comments**  **Value %**  **Value %**  **Value %**  **Value %**  **Value %**  **Value %**  **Capital Costs Low NOx Burners + SOFA**  **Low NOx Burners + SOFA Low NOx Burners + SOFA** 

Major Materials Design and Supply $1,686,411 $1,686,411 $1,686,411 $1,686,411 $1,686,411 $1,686,411

Construction $2,162,396 $2,162,396 $2,162,396 $2,162,396 $2,162,396 $2,162,396 Balance of Plant $0 (incl) $0 (incl) $0 (incl) $0 (incl) $0 (incl) $0 (incl) Electrical (Allowance) $0 (incl) $0 (incl) $0 (incl) $0 (incl) $0 (incl) $0 (incl) Owner's Costs $469,524 $0 $469,524 $0 $469,524 $0 As noted in RTC, the Control Cost Manual provides for "Engineering and Home Office Fees" up to 10% of PEC. Owner's costs up to this value are included. Surcharge $401,680 $0 $401,680 $0 $401,680 $0 There is no provision for surcharge in the EPA Control Cost Manual AFUDC $0 (incl) $0 (incl) $0 (incl) $0 (incl) $0 (incl) $0 (incl)AFUDC is not allowed by the EPA Control Cost Manual Subtotal, LNB+SOFA Capital Cost $4,720,011 $3,848,807 $4,720,011 $3,848,807 $4,720,011 $3,848,807 Contingency $0 $0 $0 $0 $0 $0 **Subtotal Capital Cost $4,720,011**  **$3,848,807 $4,720,011**  **$3,848,807 $4,720,011**  **$3,848,807 Selective Non-Catalytic Reduction (SNCR)**  **Selective Catalytic Reduction (SCR)** Major Materials Design and Supply $0 $0 $2,633,412 $2,633,412 $36,187,449 $36,187,449

Construction $0 $0 $7,958,083 $7,958,083 $18,093,725 50% $18,093,725 50% Balance of Plant $0 $0 $0 $0 $18,093,725 50% $18,093,725 50% Electrical (Allowance) $0 $0 $0 $0 $1,809,372 5% $1,809,372 5% Owner's Costs $0 $0 $1,222,006 $1,222,006 $3,618,745 10% $0 0% As noted in RTC, the Control Cost Manual provides for "Engineering and Home Office Fees" up to 10% of PEC. Owner's costs up to this value are included. Surcharge $0 $0 $1,518,367 $1,518,367 $1,757,624 16% $0 0% There is no provision for surcharge in the EPA Control Cost Manual AFUDC $0 $0 $875,732 $875,732 $8,628,728 12% $0 0% AFUDC is not allowed by the EPA Control Cost Manual, and specifically excluded for SCR Subtotal $0 $0 $14,207,600 $14,207,600 $88,189,367 $74,184,270 Contingency $0 $0 $1,181,718 $1,181,718 $5,428,117 15% $5,428,117 15% **Subtotal Capital Cost $0**  **$0 $15,389,318**  **$15,389,318 $93,617,485**  **$79,612,388 Total Capital Cost**  **$4,720,011 $3,848,807**  **$20,109,329 $19,238,125**  **$98,337,496 $83,461,195**  **Annual Costs Fixed O&M Costs**  Operating Labor $30,000 $30,000 $63,000 $63,000 $45,000 $45,000 Maintenance Materials $60,000 $60,000 $110,000 $110,000 $90,000 $90,000 Maintenance Labor $30,000 $30,000 $0 (incl) $0 (incl) $45,000 $45,000 Administrative Labor $0 $0 $0 $0 $0 $0 Subtotal, fixed O&M costs $120,000 $120,000 $173,000 $173,000 $180,000 $180,000 **Variable Costs** Makeup water $0 $0 $2,000 $2,000 $0 $0 Reagent $0 $0 $1,061,000 $1,061,000 $375,746 $375,746 Catalyst Replacement $0 $0 $0 $0 $450,000 $450,000 Waste Disposal $0 $0 $0 $0 $0 $0 Electric Power Cost $0 $0 $18,500 $18,500 $565,020 $565,020 Subtotal, variable costs $0 $0 $1,081,500 $1,081,500 $1,390,766 $1,390,766 Debt Service/Capital Recovery1 $688,124 $363,300 $2,931,711 $1,815,943 $14,336,487 $7,878,146 Regarding interest rates, EPA calculated capital recoveries using 3% and 7% interest rates in determining cost effectiveness for the Regulatory Impact Analysis for the Final Clean Air Visibility rule and the Guidelines for BART Determinations under the Regional Haze regulations. The EPA Control Cost Manual uses 7% interest rate in SCR example calculations (Section 4-2, Chap 2, p2-57). In addition, the CCM also recommends a 20 year economic lifetime for SCR (p2-57), although 30 year lifetimes have often been specified in certain BART and BACT analyses. **Total Annual Costs $808,124**  **$483,300 $4,186,211**  **$3,070,443 $15,907,253**  **$9,448,912**

1) Debt Service/Capital Recovery

Interest rate (%) = 13.4% 7.0% Equipment lifetime (years) = 20 20 **LNB with SOFA SNCR w/ LNB+SOFA**  **SCR w/ LNB+SOFA APS**  **EPA Revised APS**  **EPA Revised APS**  **EPA Revised APS Cholla - Control Cost Comparison (based on APS comment letter cost estimates)**  APS costs not allowed by EPA Control Cost Manual APS costs allowed by EPA Control Cost Manual, but modified from original estimate

**Parameter Comments**  **Value %**  **Value %**  **Value %**  **Value %**  **Value %**  **Value %**  **Capital Costs Low NOx Burners + SOFA**  **Low NOx Burners + SOFA Low NOx Burners + SOFA** 

Major Materials Design and Supply $2,178,927 $2,178,927 $2,178,927 $2,178,927 $2,178,927 $2,178,927

Construction $2,868,810 $2,868,810 $2,868,810 $2,868,810 $2,868,810 $2,868,810 Balance of Plant $0 (incl) $0 (incl) $0 (incl) $0 (incl) $0 (incl) $0 (incl) Electrical (Allowance) $0 (incl) $0 (incl) $0 (incl) $0 (incl) $0 (incl) $0 (incl) Owner's Costs $321,210 $286,881 10% $321,210 $286,881 10% $321,210 $286,881 10% As noted in RTC, the Control Cost Manual provides for "Engineering and Home Office Fees" up to 10% of PEC. Owner's costs up to this value are included. Surcharge $65,125 $0 $65,125 $0 $65,125 $0 There is no provision for surcharge in the EPA Control Cost Manual AFUDC $0 (incl) $0 (incl) $0 (incl) $0 (incl) $0 (incl) $0 (incl) AFUDC is not allowed by the EPA Control Cost Manual Subtotal, LNB+SOFA Capital Cost $5,434,072 $5,334,618 $5,434,072 $5,334,618 $5,434,072 $5,334,618 Contingency $0 $0 $0 $0 $0 $0 **Subtotal Capital Cost $5,434,072**  **$5,334,618 $5,434,072**  **$5,334,618 $5,434,072**  **$5,334,618 Selective Non-Catalytic Reduction (SNCR)**  **Selective Catalytic Reduction (SCR)** Major Materials Design and Supply $0 $0 $4,026,846 $4,026,846 $49,456,180 $49,456,180

Construction $0 $0 $12,452,633 $12,452,633 $24,728,090 50% $24,728,090 50% Balance of Plant $0 $0 $0 (incl) $0 (incl) $24,728,090 50% $24,728,090 50% Electrical (Allowance) $0 $0 $0 (incl) $0 (incl) $2,472,809 5% $2,472,809 5% Owner's Costs $0 $0 $1,769,815 $1,245,263 10% $4,945,618 10% $4,945,618 10% As noted in RTC, the Control Cost Manual provides for "Engineering and Home Office Fees" up to 10% of PEC. Owner's costs up to this value are included. Surcharge $0 $0 $1,897,074 $0 $2,402,087 $0 There is no provision for surcharge in the EPA Control Cost Manual AFUDC $0 $0 $1,684,083 $0 $10,309,193 $0 AFUDC is not allowed by the EPA Control Cost Manual, and specifically excluded for SCR Subtotal $0 $0 $21,830,451 $17,724,742 $119,042,067 $106,330,787 Contingency $0 $0 $1,825,692 $1,825,692 15% $7,418,427 15% $7,418,427 15% **Subtotal Capital Cost $0**  **$0 $23,656,143**  **$19,550,434 $126,460,494**  **$113,749,214 Total Capital Cost**  **$5,434,072 $5,334,618**  **$29,090,215 $24,885,052**  **$131,894,566 $119,083,832**  **Annual Costs Fixed O&M Costs**  Operating Labor $42,500 $42,500 $71,245 $71,245 $63,750 $63,750 Maintenance Materials $85,000 $85,000 $124,396 $124,396 $127,500 $127,500 Maintenance Labor $42,500 $42,500 $0 (incl) $0 $63,750 $63,750 Administrative Labor $0 $0 $0 $0 $0 $0 Subtotal, fixed O&M costs $170,000 $170,000 $195,641 $195,641 $255,000 $255,000 **Variable Costs** Makeup water $0 $0 $2,262 $2,262 $0 $0 Reagent $0 $0 $1,518,569 $1,518,569 $592,084 $592,084 Catalyst Replacement $0 $0 $0 $0 $637,500 $637,500 Waste Disposal $0 $0 $0 $0 $0 $0 Electric Power Cost $0 $0 $20,921 $20,921 $865,598 $865,598 Subtotal, variable costs $0 $0 $1,541,752 $1,541,752 $2,095,182 $2,095,182 Debt Service/Capital Recovery1 $792,226 $503,550 $4,241,022 $2,348,973 $19,228,725 $11,240,671 Regarding interest rates, EPA calculated capital recoveries using 3% and 7% interest rates in determining cost effectiveness for the Regulatory Impact Analysis for the Final Clean Air Visibility rule and the Guidelines for BART Determinations under the Regional Haze regulations. The EPA Control Cost Manual uses 7% interest rate in SCR example calculations (Section 4-2, Chap 2, p2-57). In addition, the CCM also recommends a 20 year economic lifetime for SCR (p2-57), although 30 year lifetimes have often been specified in certain BART and BACT analyses. **Total Annual Costs $962,226**  **$673,550 $5,978,415**  **$4,086,366 $21,578,907**  **$13,590,853**

1) Debt Service/Capital Recovery

Interest rate (%) = 13.4% 7.0% Equipment lifetime (years) = 20 20 **LNB with SOFA SNCR w/ LNB+SOFA**  **SCR w/ LNB+SOFA APS**  **EPA Revised APS**  **EPA Revised APS**  **EPA Revised**

### SRP Coronado Unit 1 - Control Cost Summary

**Cost Item LNB+OFA**  **SNCR w/ LNB+OFA SCR w/ LNB+OFA**  Capital Cost $6,500,000 $13,000,000 $72,500,000 Capital Recovery factor 0.094 0.094 0.094 Annualized Rate ($/yr) $613,554 $1,227,108 $6,843,487 Annual O&M ($/year) $0 $1,100,000 $1,700,000

Total Annual Cost ($/year) $613,554 $2,327,108 $8,543,487

Interest Rate 7.0% Equipment Lifetime (years) 20

Note: as included in Docket Item B-10, SRP Coronado BART Report, February 2008 **Control Option**

### SRP Coronado Unit 1 - Control Cost Summary

**Cost Item LNB+OFA** **1** 

### SNCR w/ LNB+OFA**2** 

### SCR w/ LNB+OFA**3** 

### Capital Cost $6,500,000 $14,164,000 $80,633,219 Capital Recovery factor 0.094 0.094 0.094 **Annualized Rate ($/yr) $613,554**  **$1,336,981 $7,611,205**  Fixed O&M ($/yr) $170,000 Variable O&M ($/yr) $5,659,800 **Annual O&M ($/year) $0**  **$5,829,800 $4,492,736** 

Total Annual Cost ($/year) $613,554 $7,166,781 $12,103,941

Interest Rate 7.0% Equipment Lifetime (years) 20

1 

### LNB+OFA costs are based on original SRP cost estimates per Docket Item B-10, SRP Coronado BART Report, February 2008 2

### SNCR cost estimates based on conceptual design estimate provided in comments by SRP (see SRP comment attachments, Appendix G) 3

### SCR cost estimates based on comments provided by SRP (see SRP comment letter, Table 6-1_ **Control Option**

### SNCR cost estimates based on conceptual design estimate provided in comments by SRP (see SRP comment attachments, Appendix G)

### SRP Coronado Unit 2 - Modification cost estimates

**Modification Capital Cost**  **Annualized Capital Cost**  **Annual O&M**

**Costs Total Annual** 

**Costs ($)**  **($/yr) ($/yr)**  **($/yr) Notes**  Low-load temp ctrl sys $2,500,000 $235,982 $0 $235,982 Per SRP comments, p13; used mid-range of costs Additional ammonia inj

-- -- $28,000 $28,000 Additional catalyst $1,600,000 $151,029 $453,000 $604,029 Includes additional pressure drop Dry Sorbent Inj (SO3 ctrl) $6,500,000 $613,554 $1,200,000 $1,813,554 Fabric filter $95,500,000 $9,014,524 $2,200,000 $11,214,524

Interest Rate 7.0% Equipment Lifetime (years) 20 Capital Recovery Factor 0.094

### Per SRP comments, p13; used mid-range of costs