# List of Worksheets **Emissions -** This lists some historical and projected (WY proposed limits) emissions data **Plant Data Summary -** This is key input data and assumptions for the cost estimating worksheets **NOx-LNB_01_03** This has the calculations for combustion controls based upon a post combustion control emissions **NOx-SNCR_01_03** This has the calculations for SNCR based upon a post combustion control emissions **NOx-SCR_01_03** This has the calculations for SCR based upon a post combustion control emissions **SCR Cost Comparison** This compares estimated SCR capital cost from different sources **Dave Johnston** This summarizes cost and emissions calculations for units at Dave Johnston plant **Laramie River** This summarizes cost and emissions calculations for units at Laramie River plant **Naughton** This summarizes cost and emissions calculations for units at Naughton plant **Wyodak** This summarizes cost and emissions calculations for units at Wyodak plant **CEPCI** This shows historical Chemical Engineering Plant Cost Index (CEPCI) data

## Facility Name **Facility ID (ORISPL) Unit ID** 

**2001 2001**  **2003 Avg**  **2001 2001**  **2003 Avg**  **2001 2001**  **2003 Avg**  **Capacity (MW) Heat Rate (Btu/kW-h)**  **Avg Capacity Factor 2003 NOx Control(s)**  **Boiler type WY Proposed BART limit or**  **comb. Controls only estimate**  **2011NOx 2012 YTD** 



## Dave Johnston 4158BW41 2259.654 2341.398 1993.66 2198.237 0.4387 0.4737 0.4523 0.4549 10271469 9859291 8724168 9618309 106 11121 93.1% Dry bottom wall-fired boiler 0.2 0.3864 

## 0.3934 Dave Johnston 4158BW42 2025.349 2298.038 2191.427 2171.605 0.4292 0.455 0.4376 0.4406 9389438 10052222 9988892 9810184 106 11112 95.1% Dry bottom wall-fired boiler 0.2 0.4273 

## 0.4328 Dave Johnston 4158BW43 4834.257 5027.037 5057.173 4972.822 0.521 0.5013 0.5124 0.5116 18276800 19819756 19531122 19209226 220 11098 89.8% Cell burner boiler 0.28 0.2261 

## 0.2162 Dave Johnston 4158BW44 4788.221 5352.534 5270.734 5137.163 0.3374 0.3638 0.3974 0.3662 27903324 29081693 26078697 27687905 330 10964 87.4% Tangentially-fired 0.15 0.1413 

## 0.2039 Laramie River 6204 1 6040.086 6728.234 5613.917 6127.412 0.2474 0.2769 0.2512 0.2585 48243920 48061877 44137502 46814433 565 11312 83.6% Low NOx Burner Technology (Dry Bottom only) Dry bottom wall-fired boiler 0.21 0.1843 0.1930 Laramie River 6204 2 5631.559 6686.953 6726.763 6348.425 0.2717 0.2729 0.2664 0.2703 40954490 48607656 50111065 46557737 570 10953 85.1% Low NOx Burner Technology (Dry Bottom only) Dry bottom wall-fired boiler 0.21 0.1838 0.1901 Laramie River 6204 3 6323.325 5544.715 7369.091 6412.377 0.2463 0.272 0.2825 0.2669 50975075 40466512 51855000 47765529 570 11686 81.9% Low NOx Burner Technology (Dry Bottom only) Dry bottom wall-fired boiler 0.21 0.2174 0.1930 Naughton 4162 1 3694.826 3365.114 3721.047 3593.662 0.5122 0.5216 0.5126 0.5155 14372707 12583677 14405088 13787157 160 10848 90.7% Tangentially-fired 0.26 0.5892 0.5551 Naughton 4162 2 4554.524 4306.428 4432.165 4431.039 0.5061 0.5266 0.5335 0.5221 17799227 15835524 16214540 16616431 210 10708 84.4% Tangentially-fired 0.26 0.5641 0.2108 Naughton 4162 3 4594.486 5240.761 4033.023 4622.757 0.3608 0.3685 0.3675 0.3656 24989045 28425577 21154475 24856366 330 10489 82.0% Tangentially-fired 0.07 0.4333 0.3984 Wyodak 6101BW91 4600.661 4696.526 4662.886 4653.358 0.2537 0.2618 0.271 0.2622 35964854 35685721 33961751 35204108 335 12068 99.4% Dry bottom wall-fired boiler 0.23 0.2062 

## 0.1918
Notes: 1 1 1 1 1 1 1 1 1 1 1 1 2 2 3 1 1 4 1 1



## 1 Data is from Air Markets Program Data; 2012 YTD is total tons NOx times 2000 divided by heat input. For LR1, months of Apr and May are excluded due to shutdown in Apr and apparent use of natural gas or other (zero SO2 emissions) in May **2** From NEEDS v 4.10 **3** Calculated from avg heat input for 2001-2003, capacity and heat rate **4** From FR vol 77, No 107, except Laramie River which were subsequently reduced to 0.21 **NOx Emissions (tpy) NOx Emissions (lb/MMBtu)**  **Heat Input (MMBtu) NEEDS Data** 

## 1 2 3 4 5 6 8 9 10 11 13 14 15 16 17 18 19 20 21 23

**Capacity baseline rate**  **2001-2003**



## Unique ID Name Plant Code **Unit MW gross**  **Fuel** 

## WY Proposed BART limit or comb. Controls only estimate **2011NOx 2012 YTD**  **2001-2003 Estim. Capac.**  **Factor Heat Rate**  **Burner 2003**  **Controls Add'l** 

**Controls 2011** 

**Controls Add'l** 

**Controls Final NOx with** 

**Comb Controls % red'n from 2003** 

**emissions with comb controls**  **SCR Retrofit Factor**



## 4158_BW41 Dave Johnston 4158.00 BW41 106 C 

## 0.20 0.3864 

## 0.3934 0.45 0.9314 11121 

## W LNBO LNBO 0.2000 0.56 1.50 Dry bottom wall-fired boiler 4158_BW42 Dave Johnston 4158.00 BW42 106 C 

## 0.20 0.4273 

## 0.4328 0.44 0.9508 11112 

## W LNBO LNBO 0.2000 0.55 1.50 Dry bottom wall-fired boiler 4158_BW43 Dave Johnston 4158.00 BW43 220 C 

## 0.28 0.2261 

## 0.2162 0.51 0.8981 11098 

## W LNBO LNBO 0.2162 0.58 1.50 Cell burner boiler 4158_BW44 Dave Johnston 4158.00 BW44 330 C 

## 0.15 0.1413 

## 0.2039 0.37 0.8736 10964 

## T LNC3 LNC3 0.1413 0.61 1.50 Tangentially-fired 6204_1 Laramie River 6204.00 1.00 565 C 

## 0.21 0.1843 0.1930 0.26 0.8362 11312 

## W LNB OFA LNBO 0.1920 0.26 1.00 Dry bottom wall-fired boiler 6204_2 Laramie River 6204.00 2.00 570 C 

## 0.21 0.1838 0.1901 0.27 0.8513 10953 

## W LNB OFA LNBO 0.1920 0.29 1.20 Dry bottom wall-fired boiler 6204_3 Laramie River 6204.00 3.00 570 C 

## 0.21 0.2174 0.1930 0.27 0.8186 11686 

## W LNB OFA LNBO 0.1920 0.28 1.00 Dry bottom wall-fired boiler 4162_1 Naughton 4162.00 1.00 160 C 

## 0.26 0.5892 0.5551 0.52 0.9068 10848 

## T LNC3 LNC3 0.2108 0.59 1.30 Tangentially-fired 4162_2 Naughton 4162.00 2.00 210 C 

## 0.26 0.5641 0.2108 0.52 0.8436 10708 

## T LNC3 LNC3 0.2108 0.60 1.30 Tangentially-fired 4162_3 Naughton 4162.00 3.00 330 C 

## 0.07 0.4333 0.3984 0.37 0.8197 10489 

## T LNC2 LNC2 0.3300 0.10 1.30 Tangentially-fired 6101_BW91 Wyodak 6101.00 BW91 

## 335 C 

## 0.23 0.2062 

## 0.1918 0.26 0.9940 12068 

## W LNBO LNBO 0.1918 0.27 1.30 Dry bottom wall-fired boiler

Notes: 1 2 

## 2 3 4 5 

## 2 2 2 2 6 7.00

Notes **1**

**2 3** 
**4**

**5**

**6 7** 

**Economic Assumptions: Capital Recovery Factor**  9.44% **Combustion control legend** Interest Rate 7.00% LNB Low NOx Burner Period (yrs) 20 LNBO Low NOx Burner and Overfire Air OFA Overfire Air **Insurance** 0.30%From Integrated Planning Model ver 4.10 documentationpage 8-11 LNC3 For tangential units, LNB with separated OFA **Property Taxes** 0.90%From Integrated Planning Model ver 4.10 documentationpage 8-11

**Cost of Urea (50% wt soln)** 450$/ton 10/12/12 email from Doug Kirk, Fuel Tech **Cost of Power** 0.06$/kWhr IPM model assumptions **Cost of Oper Labor** 60$/hr IPM model assumptions **Cost of SCR catalyst** 5500$/m3 Cichanowicz, 2010 **Cost of steam** 4.00$/1000lb IPM model assumptions **cost of dilution water** 1.00$/1000gal IPM model assumptions These are subjective factors that account for a presumed retrofit difficulty. The rationale for the selection of each of these factors is described in the memo submitted with this workbook **2011 Reported Rates**



## Rate with combustion controls. This is the lesser of 2011 annual rate, 2012 YTD, or rate committed to or published in FR 77 No. 107 For DJ 1 and 2, this results in 0.20 lb/MMBtu. For Naughton 1 assumed the same rate as Naughton 2 and for Naughton 3, I assumed 10% under the WY proposed 30 day average rate with comb controls, or 10% under 0.37, which is equal to 0.33. For LR 1, 2, 3, used the average of the 2012 YTD values. This is the lesser of the WY BART limit or the combustion controls only estimate in the BART analyses. The 0.20 limit for DJ 1 and 2 is taken from the proposal in the FR, and is a reasonable estimate for LNBO at about 55% NOx reduction from the 2003 rate.

Determined from data reported to US EPA and available on the Clean Air Markets Division Web Site; 2012 YTD is total tons NOx times 2000 divided by heat input. For LR1, months of Apr and May are excluded due to shutdown in Apr and apparent use of natural gas in May Baseline rate for 2003 is average for 2001-2003 reported rates. Capacity factor estimated for 2001-2003 from reported heat input, NEEDS heat rate and NEEDS capacity in MW. Used to calculate annual NOx emissions from average annual rate Heat rate from NEEDS v4.10

## BASE COSTS
Control Scenario 

### Boiler Type **TECHNOLOGY Capital**  **FOM VOM**  **REM Eff SCALING FACTORS (TPC and FOM)**  **($/kw) ($/kw-yr)**  **mills/kwhr)** 1.00 **Wall-Fired LNB**  **45.00 0.30**  **0.07 0.30**  **Wall- and T-fired = (base cost)*(300/MW)^0.359** See Chapter 5 2.00 **Wall-Fired LNBO**  **61.00 0.40**  **0.09 0.50**  http://www.epa.gov/airmarkets/progsregs/epa-ipm/BaseCasev410.html#documentation 3.00 **Wall-Fired OFA**  **24.00 0.40**  **0.09 0.29**  **It is assumed that OFA installed alone costs 1.5 times the difference between LNB+OFA and LNB alone** 4.00 **T-Fired LNC1**  **24.00 0.20**  **0.00 0.30**  **Vertical-fired = (base cost)*(300/MW)^0.553** 5.00 **T-Fired LNC2**  **33.00 0.20**  **0.03 0.50**  6.00 **T-Fired LNC3**  **38.00 0.30**  **0.03 0.60**  7.00 **T-Fired LNC1_3**  **21.00 0.10**  **0.03 0.20**  use upgrade to LNFC 3 - Capital=(LNC3-LNC1)*1.5; FOM/VOM = LNC3-LNC1; Nox=20% 0.00 **0.00 0.00**  **0.00 0.00**  **Note: percent reduction in this table was not used because actual or projected emissions data was available for each unit**



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

Unique ID 4158_BW41 4158_BW42 4158_BW43 4158_BW44 6204_1 6204_2 6204_3 4162_1 4162_2 4162_3 6101_BW91 Plant Dave Johnston Dave Johnston Dave Johnston Dave Johnston Laramie River Laramie River Laramie River Naughton Naughton Naughton Wyodak Unit BW41 BW42 BW43 BW44 1 2 3 1 2 3 BW91 Unit Size A MW 106 106 220 330 565 570 570 160 210 330 335 user input Gross Heat Rate C Btu/kwhr 11120.94 11111.77 11097.8 10963.53 11312 10953 11686 10848.17 10707.82 10489.42 12068.4 user input NOx Rate D lb/Mmbtu 0.4549 0.4406 0.511566667 0.3662 0.2585 0.270333333 0.266933333 0.515466667 0.522066667 0.3656 0.262166667 user input CF J % 93.14% 95.08% 89.81% 87.36% 83.62% 85.13% 81.86% 90.68% 84.36% 81.97% 99.40% user input NOx Controls LNBO LNBO LNBO LNC3 OFA OFA LNBO LNC3 LNC3 LNC2 LNBO Retrofit Factor B 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1 = typical retrofit Heat Input I Btu/hr 1.18E+09 1.18E+09 2.44E+09 3.62E+09 6.39E+09 6.24E+09 6.66E+09 1.74E+09 2.25E+09 3.46E+09 4.04E+09 A*C*1000

NOx Removal Eff K % 56.03% 54.61% 57.73% 61.41% 25.72% 28.97% 28.07% 59.10% 59.61% 9.74% 26.84%from Plant Data Sheet NOx Removed M lb/hr 300.48 283.39 721.08 813.68 424.92 488.95 499.03 528.75 699.84 123.23 284.53 D*I/10^6*K Aux Power Cost T $/kwh 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 Steam Cost U $/Klb 4.00 4.00 4.00 4.00 4.00 4.00 4.00 4.00 4.00 4.00 4.00 Operating Labor Rate V $/hr 60.00 60.00 60.00 60.00 60.00 60.00 60.00 60.00 60.00 60.00 60.00Total Labor Cost

**March 2008 reported cost, including AFUDC and Owner's cost** 17500000 7900000 9,600,000 9,100,000 13,100,000 From March 2008 Addendum

**TPC ($) (excluding AFUDC and Owners cost) =** 9,847,847 9,847,847 15,976,696 7,212,337 21,118,000 21,118,000 21,118,000 8,764,359 8,307,882 1,000,000 11,959,698 **Total project cost Base Cost (from IPM algorithm)**  61 61 61 38 24 24 61 38 38 33 61

**TPC ($/kw) = 92.9**  **92.9 72.6**  **21.9 37.4**  **37.0 37.0**  **54.8 39.6**  **3.0 35.7**  **Fixed O&M Cost**

**FOM ($/kw-yr) =** 0.58 0.58 22000.00 22000.00 22000.00 **Total Fixed O&M Cost** LR Fixed O&M from July 2008 Black & Veatch, DJ 3&4, N & W from WY SIP Attachments, else IPM

**VOM ($/MWhr) =** 0.09 0.09 **Total Variable O&M Cost** LR var O&M from July 2008 Black & Veatch, DJ 3&4, N & W from WY SIP Attachments, else IPM

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

**Cost of control - $/Ton** CF 93% 95% 90% 87% 84% 85% 82% 91% 84% 82% 99% Control Efficiency 56% 55% 58% 61% 26% 29% 28% 59% 60% 10% 27% **Uncontrolled Rate** NOx Rate (lb/hr) 536 519 1249 1325 1652 1688 1778 895 1174 1266 1060 NOx Rate (lb/MMBtu) 0.45 0.44 0.51 0.37 0.26 0.27 0.27 0.52 0.52 0.37 0.26 NOx (TPY) **2188 2161**  **4913 5070**  **6051 6293**  **6375 3553**  **4337 4544**  **4615 Controlled Rate**  NOx Rate (lb/hr) 236 236 528 511 1227 1199 1279 366 474 1142 775 NOx Rate (lb/MMBtu) 0.20 0.20 0.22 0.14 0.19 0.19 0.19 0.21 0.21 0.33 0.19 NOx (TPY) **962 981**  **2077 1956**  **4495 4470**  **4586 1453**  **1752 4101**  **3376**

**Tons/Year Removed** 1226 1180 2837 3114 1556 1823 1789 2100 2586 442 1239

**Total Cost/year** $1,187,179 $1,188,797 $1,699,807 $767,342 $2,268,806 $2,268,806 $2,268,806 $932,466 $883,900 $106,393 $1,272,427TPC*CR+(FOM*MW)+VOM(MW*8760)*CF **$/Ton** $968 $1,007 $599 $246 $1,458 $1,244 $1,268 $444 $342 $240 $1,027 Data from 2008 Addendum to BART report by CH2M Hill or July 2008 report by Black & Veatch used when available and shown in red, else developed from IPM algorithms. Costs adjusted for owner's costs and AFUDC. For DJ 3&4, N 1&2, and W 1, adjustment for AFUDC and Owner's cost is per factors in Appendices of Dec 2007 documents

black is per IPM algorithm, red is calcuated from input cost

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

Unique ID 4158_BW41 4158_BW42 4158_BW43 4158_BW44 6204_1 6204_2 6204_3 4162_1 4162_2 4162_3 6101_BW91 Plant Dave Johnston Dave Johnston Dave Johnston Dave Johnston Laramie River Laramie River Laramie River Naughton Naughton Naughton Wyodak Unit BW41 BW42 BW43 BW44 1 2 3 1 2 3 BW91 Unit Size A MW 106 106 220 330 565 570 570 160 210 330 335 Heat Rate C Btu/kwhr 11120.94 11111.77 11097.8 10963.53 11312 10953 11686 10848.17 10707.82 10489.42 12068.4 NOx Rate D lb/Mmbtu 0.20 0.20 0.22 0.14 0.19 0.19 0.19 0.21 0.21 0.33 0.19 CF I % 93.14% 95.08% 89.81% 87.36% 83.62% 85.13% 81.86% 90.68% 84.36% 81.97% 99.40% Type of fuel prb prb prb prb prb prb prb prb prb prb prb PRB assumed for conservativeness Coal Factor F 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 Bit=1; PRB=1.05; Lig=1.07; gas=1 Retrofit Factor B 1 1 1 1 1 1 1 1 1 1 1 1 = typical retrofit HR Factor G 1.112094 1.111177 1.10978 1.096353 1.1312 1.0953 1.1686 1.084817 1.070782 1.048942 1.20684 C/10000 Heat Input H Btu/hr 1.18E+09 1.18E+09 2.44E+09 3.62E+09 6.39E+09 6.24E+09 6.66E+09 1.74E+09 2.25E+09 3.46E+09 4.04E+09 A*C*1000

NOx Removal Eff J % 25% 25% 25% 20% 20% 20% 20% 25% 25% 30% 20% percent reduction will be lower at lower NOx levels NOx Removed K lb/hr 5.89E+01 5.89E+01 1.32E+02 1.02E+02 2.45E+02 2.40E+02 2.56E+02 9.15E+01 1.19E+02 3.43E+02 1.55E+02 D*H/10^6*j Urea rate (100%) L lb/hr 153.76 153.63 344.30 266.72 640.29 625.46 667.31 238.66 309.19 893.97 404.55 K/UF/46*30 0.25 Urea Utilization Factor Water Required M lb/hr 1384 1383 3099 2401 5763 5629 6006 2148 2783 8046 3641 L*9 Aux. Power N % 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 Dilution water rate O (1000gph) 0.166 0.166 0.372 0.288 0.692 0.675 0.721 0.258 0.334 0.965 0.437 M*0.12/1000 http://www.epa.gov/airmarkets/progsregs/epa-ipm/BaseCasev410.html#documentation Urea Cost (50% sol) P $/ton 450 450 450 450 450 450 450 450 450 450 450

Aux Power Cost Q $/kwh 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 Dilution water Cost R $/Kgal 1 1 1 1 1 1 1 1 1 1 1 Operating Labor Rate S $/hr 60 60 60 60 60 60 60 60 60 60 60Total Labor Cost

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

BMS ($) = 1755694 1755694 3643892 5465839 9358178 9440994 9440994 2650104 3478261 5465839 5548654 SNCR BMA ($) = APH (SO@> 3lb/Mmbtu); 65000*B*(A*G)^.78 BMB ($) = BOP

BM ($) = 1,755,694 1,755,694 3,643,892 5,465,839 9,358,178 9,440,994 9,440,994 2,650,104 3,478,261 5,465,839 5,548,654 Total base cost BM ($/KW) = 17 17 17 17 17 17 17 17 17 17 17

**Total Project Cost** A1 = 5% of BM ($) = 87785 87785 182195 273292 467909 472050 472050 132505 173913 273292 277433 Eng. and Construction management A2 = 5% of BM ($) = 87785 87785 182195 273292 467909 472050 472050 132505 173913 273292 277433 Labor adjustment A3 = 5% of BM ($) = 87785 87785 182195 273292 467909 472050 472050 132505 173913 273292 277433 Contractor profit/fees

**CECC ($) =** 2,019,048 2,019,048 4,190,476 6,285,714 10,761,905 10,857,143 10,857,143 3,047,619 4,000,000 6,285,714 6,380,952 Cap., Eng. and management **CECC ($/kw) =** 19 19 19 19 19 19 19 19 19 19 19

B1 = 5% of CECC 100,952 100,952 209,524 314,286 538,095 542,857 542,857 152,381 200,000 314,286 319,048 owners cost
**TPC ($) =** 2,120,000 2,120,000 4,400,000 6,600,000 11,300,000 11,400,000 11,400,000 3,200,000 4,200,000 6,600,000 6,700,000 **Total project cost TPC ($/kw) =**  20 20 20 20 20 20 20 20 20 20 20 **It was assumed that SNCR capital cost was $20/kW per 2008 ICAC White Paper on SNCR**

**Fixed O&M Cost**

FOMO ($/kw-yr) = 0.58868 0.58868 0.28364 0.18909 0.11044 0.10947 0.10947 0.39000 0.29714 0.18909 0.18627 fixed O&M - additional labor cost FOMM ($/kw-yr) = 0.20 0.20 0.20 0.20 0.20 0.20 0.20 0.20 0.20 0.20 0.20fixed O&M - additional maintenace, mtl and labor cost

**FOM ($/kw-yr) =** 0.79 0.79 0.48 0.39 0.31 0.31 0.31 0.59 0.50 0.39 0.39 **Total Fixed O&M Cost**

**Variable O&M Cost**

VOMR ($/MWhr) = 0.65 0.65 0.70 0.36 0.51 0.49 0.53 0.67 0.66 1.22 0.54Variable O&M - urea VOMM ($/MWhr) = 0.0006 0.0006 0.0003 0.0002 0.0001 0.0001 0.0001 0.0004 0.0003 0.0002 0.0002 Variable O&M - dilution water VOMP ($/MWhr)= Variable O&M Power 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 This is not included in the S&L calculations, but should be

**VOM ($/MWhr) =** 0.68 0.68 0.73 0.39 0.54 0.52 0.56 0.70 0.69 1.25 0.57**Total Variable O&M Cost**

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

Total Charge Rate 10.64% 10.64% 10.64% 10.64% 10.64% 10.64% 10.64% 10.64% 10.64% 10.64% 10.64%

**Cost of control - $/Ton**

CF 93% 95% 90% 87% 84% 85% 82% 91% 84% 82% 99% Control Efficiency 25% 25% 25% 20% 20% 20% 20% 25% 25% 30% 20% **Uncontrolled Rate** (lb/Mbtu*Heat Input)/1000000 NOx Rate (lb/hr) 236 236 528 511 1227 1199 1279 366 474 1142 775 Lb/hr*8760*CF/2000 NOx Rate (lb/MMBtu) 0.2 0.2 0.216226081 0.1413 0.192015571 0.192015571 0.192015571 0.210837578 0.210837578 0.33 0.191788083

NOx (TPY) **962 981**  **2077 1956**  **4495 4470**  **4586 1453**  **1752 4101**  **3376 Controlled Rate**  NOx Rate (lb/hr) 177 177 396 409 982 959 1023 274 356 800 620 NOx Rate (lb/MMBtu) 0.15 0.15 0.16 0.11 0.15 0.15 0.15 0.16 0.16 0.23 0.15 TPC*CR+(FOM*MW)+VOM(MW*8760)*CF

NOx (TPY) 721 736 1558 1565 3596 3576 3669 1090 1314 2871 2701

**Tons/Year Removed 240**  **245 519**  **391 899**  **894 917**  **363 438**  **1230 675** 

**Total Cost/year** $900,010 $911,822 $1,845,627 $1,824,946 $3,612,016 $3,615,451 $3,664,986 $1,326,360 $1,626,149 $3,790,446 $2,515,039 **$/Ton** $3,743 $3,718 $3,555 $4,665 $4,018 $4,044 $3,996 $3,650 $3,713 $3,081 $3,725 Note: Capital Cost equations were modified to be a constant $20/kWe

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

Unique ID 4158_BW41 4158_BW42 4158_BW43 4158_BW44 6204_1 6204_2 6204_3 4162_1 4162_2 4162_3 6101_BW91 Plant Dave Johnston Dave Johnston Dave Johnston Dave Johnston Laramie River Laramie River Laramie River Naughton Naughton Naughton Wyodak Unit BW41 BW42 BW43 BW44 1 2 3 1 2 3 BW91 Unit Size A MW 106 106 220 330 565 570 570 160 210 330 335 Gross Heat Rate C Btu/kwhr 11120.94 11111.77 11097.8 10963.53 11312 10953 11686 10848.17 10707.82 10489.42 12068.4 NOx Rate D lb/Mmbtu 0.20 0.20 0.22 0.14 0.19 0.19 0.19 0.21 0.21 0.33 0.19 CF J CF 93.1% 95.1% 89.8% 87.4% 83.6% 85.1% 81.9% 90.7% 84.4% 82.0% 99.4% Type of Coal F prb prb prb prb prb prb prb prb prb prb prb blends are treated as PRB to be conservative Coal Factor G 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 Bit=1; PRB=1.05; Lig=1.07 **Retrofit Factor B**  1.5 1.5 1.5 1.5 1 1.2 1 1.3 1.3 1.3 1.3 **1 = typical retrofit** HR Factor H 1.112094 1.111177 1.10978 1.096353 1.1312 1.0953 1.1686 1.084817 1.070782 1.048942 1.20684 C/10000 Heat Input I Btu/hr 1.18E+09 1.18E+09 2.44E+09 3.62E+09 6.39E+09 6.24E+09 6.66E+09 1.74E+09 2.25E+09 3.46E+09 4.04E+09 A*C*1000 CF J 93.1% 95.1% 89.8% 87.4% 83.6% 85.1% 81.9% 90.7% 84.4% 82.0% 99.4% read from Plant Data table NOx Removal Eff K % 75.0% 75.0% 76.9% 64.6% 74.0% 74.0% 74.0% 76.3% 76.3% 84.8% 73.9% for NOx>0.5lb/Mbtu=90%; <.5 = (NOx-0.05)/NOx

NOx Removal factor L 0.94 0.94 0.96 0.81 0.92 0.92 0.92 0.95 0.95 1.06 0.92 NOx Removed M lb/hr 1.77E+02 1.77E+02 4.06E+02 3.30E+02 9.08E+02 8.87E+02 9.46E+02 2.79E+02 3.62E+02 9.69E+02 5.73E+02 D*I/10^6*K Urea rate (100%) N lb/hr 124 123 284 231 634 619 661 195 253 677 400 M*0.525*60/46*1.01/.99 Steam Required O lb/hr 140 139 320 261 717 700 747 220 286 765 453 N*1.13 Aux. Power P % 0.60 0.60 0.60 0.59 0.60 0.59 0.61 0.59 0.59 0.58 0.62 0.56*(G*H)^0.43 Urea Cost (50% sol) R $/ton 450 450 450 450 450 450 450 450 450 450 450 Catalyst Cost S $/m3 5500 5500 5500 5500 5500 5500 5500 5500 5500 5500 5500 Aux Power Cost T $/kwh 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 Steam Cost U $/Klb 4 4 4 4 4 4 4 4 4 4 4 Operating Labor Rate V $/hr 60 60 60 60 60 60 60 60 60 60 60 Total Labor Cost

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

BMR ($) = SCR 22,437,980 22,420,957 44,060,046 61,107,265 70,646,294 82,966,949 73,384,788 27,854,686 35,346,519 53,696,381 60,257,982 BMF ($) = base reagent preparation cost 1,495,094 1,494,786 1,840,236 1,747,904 2,250,426 2,237,277 2,273,804 1,675,907 1,787,972 2,287,651 2,006,169 BMA ($) = APH (SO@> 3lb/Mmbtu) BMB ($) = fans/aux power 4,313,028 4,311,534 5,855,869 6,907,635 5,848,305 6,949,214 5,950,730 4,397,507 4,902,674 5,876,489 6,272,464

BM ($) = Total base cost 28,246,101 28,227,277 51,756,152 69,762,804 78,745,025 92,153,440 81,609,322 33,928,100 42,037,165 61,860,521 68,536,614 BM ($/KW) = 266 266 235 211 139 162 143 212 200 187 205

**Total Project Cost** A1 = 10% of BM ($) = Eng. and Construction management 2,824,610 2,822,728 5,175,615 6,976,280 7,874,502 9,215,344 8,160,932 3,392,810 4,203,716 6,186,052 6,853,661 A2 = 10% of BM ($) = Labor adjustment 2,824,610 2,822,728 5,175,615 6,976,280 7,874,502 9,215,344 8,160,932 3,392,810 4,203,716 6,186,052 6,853,661 A3 = 10% of BM ($) = Contractor profit/fees 2,824,610 2,822,728 5,175,615 6,976,280 7,874,502 9,215,344 8,160,932 3,392,810 4,203,716 6,186,052 6,853,661

**CECC ($) =** Cap., Eng. and management 36,719,932 36,695,460 67,282,997 90,691,646 102,368,532 119,799,473 106,092,118 44,106,530 54,648,314 80,418,677 89,097,598 **CECC ($/kw) =** 346 346 306 275 181 210 186 276 260 244 266

B1 = 5% of CECC owners cost

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

- - - - - - - - - - -

**TPC ($) = Total project cost**  36,719,932 36,695,460 67,282,997 90,691,646 102,368,532 119,799,473 106,092,118 44,106,530 54,648,314 80,418,677 89,097,598 **TPC ($/kw) =** $346 $346 $306 $275 $181 $210 $186 $276 $260 $244 $266

**Fixed O&M Cost**

FOMO ($/kw-yr) = fixed O&M - additional labor cost 0.6 0.6 0.3 0.2 0.1 0.1 0.1 0.4 0.3 0.2 0.2 FOMM ($/kw-yr) = fixed O&M - additional maintenace, mtl and labor cost 2.8 2.8 1.4 0.9 0.5 0.5 0.5 1.9 1.4 0.9 0.9

**FOM ($/kw-yr) = Total Fixed O&M Cost**  3.42 3.42 1.65 1.10 0.64 0.64 0.64 2.27 1.73 1.10 1.08

**Variable O&M Cost**

VOMR ($/MWhr) = Variable O&M - urea 0.52 0.52 0.58 0.31 0.51 0.49 0.52 0.55 0.54 0.92 0.54 VOMW ($/MWhr) = Variable O&M - catalyst disposal 0.22 0.22 0.23 0.21 0.25 0.24 0.25 0.23 0.25 0.28 0.21 See pdf pg 10/79 at http://www.epa.gov/airmarkets/progsregs/epa-ipm/docs/SuppDoc410MATS.pdf VOMP ($/MWhr)= Variable O&M Power 0.36 0.36 0.36 0.36 0.36 0.36 0.37 0.36 0.35 0.35 0.37 This is not included in the S&L calculations, but should be VOMM ($/MWhr) = Variable O&M - steam 0.005 0.005 0.006 0.003 0.005 0.005 0.005 0.006 0.005 0.009 0.005

**VOM ($/MWhr) = Total Variable O&M Cost**  1.11 1.11 1.18 0.89 1.12 1.09 1.14 1.14 1.15 1.56 1.12

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

Total Charge Rate 10.64% 10.64% 10.64% 10.64% 10.64% 10.64% 10.64% 10.64% 10.64% 10.64% 10.64%

**Cost of control - $/Ton**CF 93% 95% 90% 87% 84% 85% 82% 91% 84% 82% 99% Control Efficiency 75% 75% 77% 65% 74% 74% 74% 76% 76% 85% 74% **Uncontrolled Rate** (lb/Mbtu*Heat Input)/1000000 NOx Rate (lb/hr) Lb/hr*8760*CF/2000 236 236 528 511 1227 1199 1279 366 474 1142 775 NOx Rate (lb/MMBtu) 0.200 0.200 0.216 0.141 0.192 0.192 0.192 0.211 0.211 0.330 0.192

NOx (TPY) 962 981 2077 1956 4495 4470 4586 1453 1752 4101 3376 **Controlled Rate** NOx Rate (lb/hr) 58.9 58.9 122.1 180.9 319.6 312.2 333.1 86.8 112.4 173.1 202.1 NOx Rate (lb/MMBtu) TPC*CR+(FOM*MW)+VOM(MW*8760)*CF 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05

NOx (TPY) 240 245 480 692 1170 1164 1194 345 415 621 880

**Tons/Year Removed 721**  **736 1597**  **1264 3324**  **3306 3392**  **1109 1336**  **3480 2496** 

**Total Cost/year** $5,230,357 $5,243,238 $9,562,381 $12,254,552 $15,877,824 $17,749,182 $16,328,221 $6,504,803 $7,959,487 $12,612,339 $13,113,990 **$/Ton** $7,251 $7,126 $5,989 $9,695 $4,776 $5,369 $4,814 $5,867 $5,956 $3,624 $5,255 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#documentation

# Reported Capital Cost Estimates from Owners

**Unique ID** 4158_BW41 4158_BW42 4158_BW43 4158_BW44 6204_1 6204_2 6204_3 4162_1 4162_2 6101_BW91 **Plant** Dave Johnston Dave Johnston Dave Johnston Dave Johnston Laramie River Laramie River Laramie River Naughton Naughton Naughton Wyodak **Unit** BW41 BW42 BW43 BW44 1 2 3 1 2 3BW91 **Unit Size (MW)** 106 106 220 330 565 570 570 160 210 330 335



# Mar-08 **LNB/OFA** $17,500,000 $7,900,000 22096000 22096000 22096000 $9,600,000 $9,100,000 $0 $13,100,000 **$/kW** $80 $24 $39 $39 $39 $60 $43 $0 $39 **LNB/OFA and SNCR** $24,035,544 $17,905,780 43441000 43441000 43441000 $17,526,855 $19,878,765 $19,495,654 **$/kW** $109 $54 $77 $76 $76 $110 $95 $58 **$/kw difference from LNB/OFA** $30 $30 $38 $37 $37 $50 $51 $19 **LNB/OFA and SCR** $129,700,000 $151,900,000 145197000 145197000 145197000 $94,600,000 $115,900,000 $136,800,000 $171,900,000 **$/kW** $590 $460 $257 $255 $255 $591 $552 $415 $513 **$/kw difference from LNB/OFA** $510 $436 $218 $216 $216 $531 $509 $415 $474



# Dec-07 **LNB/OFA** $15,900,000 $7,800,000 $7,300,000 $7,500,000 $9,300,000 **$/kW** $72 $24 $46 $36 $28 **LNB/OFA and SNCR** $24,000,000 $17,900,000 $17,500,000 $19,900,000 $14,520,327 $19,500,000 **$/kW** $109 $54 $109 $95 $44 $58 **$/kw difference from LNB/OFA** $37 $31 $49 $51 $44 $19 **LNB/OFA and SCR** $83,300,000 $106,700,000 $58,200,000 $73,000,000 $92,000,000 $108,300,000 **$/kW** $379 $323 $364 $348 $279 $323 **$/kw difference from LNB/OFA** $306 $300 $318 $312 $279 $296
average **Four Month Increase in SCR Costs** 66% 46% 67% 63% 49% 60% 59%

**2008 Cost, excl AFUDC and owners cost** $467 $400 $193 $191 $191 $487 $466 $380 $434 **Dec 2007 cost excl AFUDC** $281 $275 $292 $286 $256 $271 **Estimates from IPM Cost Model** $346 $346 $306 $275 $181 $210 $186 $276 $260 $244 $266 **Assumed Retrofit Factor** 1.5 1.5 1.5 1.5 1 1.2 1 1.3 1.3 1.3 1.3

7,684,123

**Notes: Data for Dave Johnston, Naughton, and Wyodak from Dec 2007 and March 2008 BART submittals. AFUDC and owner's cost adjustments based upon factors in Dec 2007 cost estimates**  **Data for Laramie River from July 24, 2008 submittal by Black & Veatch and May 28, 2009 WYDEQ BART Analysis. Per BART guidelines, AFUDC and owner's cost adjustments based upon factors in July 2008 submittal**

# DJ 1 **Comb Control (CC) SNCR**  **SCR CC and SNCR**  **CC and SCR**

Capital Cost, $/kW $93 $20 $346 $113 $439 Control Efficiency 56% 25% 75% 67% 89% **Uncontrolled Rate** NOx Rate (lb/hr) 536 236 236 536 536 NOx Rate (lb/MMBtu) 0.45 0.20 0.20 0.45 0.45 NOx (TPY) 2188 962 962 2188 2188 **Controlled Rate** NOx Rate (lb/hr) 236 177 59 176.82 58.94 NOx Rate (lb/MMBtu) 0.20 0.15 0.05 0.15 0.05 NOx (TPY) 962 721 240 721.37 240.46

Tons/Year Removed 1226 240 721 1466.31 1947.23

Total Cost/year $1,187,179 $900,010 $5,230,357 $2,087,189 $6,417,536 $/Ton $968 $3,743 $7,251 $1,423 $3,296 $/ton Incremental $3,743 $9,004

**DJ 2 Comb Control (CC)**  **SNCR SCR**  **CC and SNCR CC and SCR**  Capital Cost, $/kW $93 $20 $346 $113 $439 Control Efficiency 55% 25% 75% 66% 89% **Uncontrolled Rate** NOx Rate (lb/hr) 519 236 236 519 519 NOx Rate (lb/MMBtu) 0.44 0.20 0.20 0.44 0.44 NOx (TPY) 2161 981 981 2,161 2,161 **Controlled Rate** NOx Rate (lb/hr) 236 177 59 177 59 NOx Rate (lb/MMBtu) 0.20 0.15 0.05 0.15 0.05 NOx (TPY) 981 736 245 736 245

Tons/Year Removed 1180 245 736 1,425 1,916

Total Cost/year $1,188,797 $911,822 $5,243,238 $2,100,619 $6,432,035 $/Ton $1,007 $3,718 $7,126 $1,474 $3,357 $/ton Incremental $3,718 $8,830

# DJ 3 **Comb Control (CC) SNCR**  **SCR CC and SNCR**  **CC and SCR**

Capital Cost, $/kW $73 $20 $306 $93 $378 Control Efficiency 58% 25% 77% 68% 90% **Uncontrolled Rate** NOx Rate (lb/hr) 1249 528 528 1249 1249 NOx Rate (lb/MMBtu) 0.51 0.22 0.22 0.51 0.51 NOx (TPY) 4913 2077 2077 4,913 4,913 **Controlled Rate** NOx Rate (lb/hr) 528 396 122 396 122 NOx Rate (lb/MMBtu) 0.22 0.16 0.05 0.16 0.05 NOx (TPY) 2077 1558 480 1,558 480

Tons/Year Removed 2837 519 1597 3,356 4,433

Total Cost/year $1,699,807 $1,845,627 $9,562,381 $3,545,435 $11,262,188 $/Ton $599 $3,555 $5,989 $1,057 $2,540 $/ton Incremental $3,555 $7,163

**DJ 4 Comb Control (CC)**  **SNCR SCR**  **CC and SNCR CC and SCR**  Capital Cost, $/kW $22 $20 $275 $42 $297 Control Efficiency 61% 20% 65% 69% 86% **Uncontrolled Rate** NOx Rate (lb/hr) 1325 511 511 1325 1325 NOx Rate (lb/MMBtu) 0.37 0.14 0.14 0.37 0.37 NOx (TPY) 5070 1956 1956 5,070 5,070 **Controlled Rate** NOx Rate (lb/hr) 511 409 181 409 181 NOx Rate (lb/MMBtu) 0.14 0.11 0.05 0.11 0.05 NOx (TPY) 1956 1565 692 1,565 692

Tons/Year Removed 3114 391 1264 3,505 4,377

Total Cost/year $767,342 $1,824,946 $12,254,552 $2,592,288 $13,021,894 $/Ton $246 $4,665 $9,695 $740 $2,975 $/ton Incremental $4,665 $11,951

# LR 1

**Comb Control (CC) SNCR**  **SCR CC and SNCR**  **CC and SCR**

Capital Cost, $/kW $37 $20 $181 $57 $219 Control Efficiency 26% 20% 74% 41% 81% **Uncontrolled Rate** NOx Rate (lb/hr) 1652 1227 1227 1652 1652 NOx Rate (lb/MMBtu) 0.26 0.19 0.19 0.26 0.26 NOx (TPY) 6051 4495 4495 6,051 6,051 **Controlled Rate** NOx Rate (lb/hr) 1227 982 320 982 320 NOx Rate (lb/MMBtu) 0.19 0.15 0.05 0.15 0.05 NOx (TPY) 4495 3596 1170 3,596 1,170

Tons/Year Removed 1556 899 3324 2,455 4,880

Total Cost/year $2,268,806 $3,612,016 $15,877,824 $5,880,822 $18,146,629 $/Ton $1,458 $4,018 $4,776 $2,395 $3,718 Incremental $/ton $4,018 $5,057

**LR2**

**Comb Control (CC) SNCR**  **SCR CC and SNCR**  **CC and SCR** Capital Cost, $/kW $37 $20 $210 $57 $247 Control Efficiency 29% 20% 74% 43% 82% **Uncontrolled Rate** NOx Rate (lb/hr) 1688 1199 1199 1688 1688 NOx Rate (lb/MMBtu) 0.27 0.19 0.19 0.27 0.27 NOx (TPY) 6293 4470 4470 6,293 6,293 **Controlled Rate** NOx Rate (lb/hr) 1199 959 312 959 312 NOx Rate (lb/MMBtu) 0.19 0.15 0.05 0.15 0.05 NOx (TPY) 4470 3576 1164 3,576 1,164

Tons/Year Removed 1823 894 3306 2,717 5,129

Total Cost/year $2,268,806 $3,615,451 $17,749,182 $5,884,257 $20,017,988 $/Ton $1,244 $4,044 $5,369 $2,166 $3,903 Incremental $/ton $4,044 $5,860

**LR 3**

**Comb Control (CC) SNCR**  **SCR CC and SNCR**  **CC and SCR** Capital Cost, $/kW $37 $20 $186 $57 $223 Control Efficiency 28% 20% 74% 42% 81% **Uncontrolled Rate** NOx Rate (lb/hr) 1778 1279 1279 1778 1778 NOx Rate (lb/MMBtu) 0.27 0.19 0.19 0.27 0.27 NOx (TPY) 6375 4586 4586 6,375 6,375 **Controlled Rate** NOx Rate (lb/hr) 1279 1023 333 1023 333 NOx Rate (lb/MMBtu) 0.19 0.15 0.05 0.15 0.05 NOx (TPY) 4586 3669 1194 3,669 1,194

Tons/Year Removed 1789 917 3392 2,706 5,181

Total Cost/year $2,268,806 $3,664,986 $16,328,221 $5,933,791 $18,597,027 $/Ton $1,268 $3,996 $4,814 $2,192 $3,589 Incremental $/ton $1,268 $3,996 $5,117

# N1

**Comb Control (CC) SNCR**  **SCR CC and SNCR**  **CC and SCR**

Capital Cost, $/kW $55 $20 $276 $75 $330 Control Efficiency 59% 25% 76% 69% 90% Uncontrolled Rate NOx Rate (lb/hr) 895 366 366 895 895 NOx Rate (lb/MMBtu) 0.52 0.21 0.21 0.52 0.52 NOx (TPY) 3553 1453 1453 3553 3553 Controlled Rate NOx Rate (lb/hr) 366 274 87 274 87 NOx Rate (lb/MMBtu) 0.21 0.16 0.05 0.16 0.05 NOx (TPY) 1453 1090 345 1090 345

Tons/Year Removed 2100 363 1109 2463 3209

Total Cost/year $932,466 $1,326,360 $6,504,803 $2,258,826 $7,437,269 $/Ton $444 $3,650 $5,867 $917 $2,318 Incremental Rate $3,650 $6,947

N 2

**Comb Control (CC) SNCR**  **SCR CC and SNCR**  **CC and SCR** Capital Cost, $/kW $40 $20 $260 $60 $300 Control Efficiency 60% 25% 76% 70% 90% Uncontrolled Rate NOx Rate (lb/hr) 1174 474 474 1174 1174 NOx Rate (lb/MMBtu) 0.52 0.21 0.21 0.52 0.52 NOx (TPY) 4337 1752 1752 4337 4337 Controlled Rate NOx Rate (lb/hr) 474 356 112 356 112 NOx Rate (lb/MMBtu) 0.21 0.16 0.05 0.16 0.05 NOx (TPY) 1752 1314 415 1314 415

Tons/Year Removed 2586 438 1336 3024 3922

Total Cost/year $883,900 $1,626,149 $7,959,487 $2,510,049 $8,843,387 $/Ton $342 $3,713 $5,956 $830 $2,255 Incremental Rate $3,713 $7,050

**N 3**

**Comb Control (CC) SNCR**  **SCR CC and SNCR**  **CC and SCR** Capital Cost, $/kW $3 $20 $244 $23 $247 Control Efficiency 10% 30% 85% 37% 86% Uncontrolled Rate NOx Rate (lb/hr) 1266 1142 1142 1266 1266 NOx Rate (lb/MMBtu) 0.37 0.33 0.33 0.37 0.37 NOx (TPY) 4544 4101 4101 4544 4544 Controlled Rate NOx Rate (lb/hr) 800 173 800 173 NOx Rate (lb/MMBtu) 0.33 0.23 0.05 0.23 0.05 NOx (TPY) 4101 2871 621 2871 621

Tons/Year Removed 442 1230 3480 1673 3922

Total Cost/year $106,393 $3,790,446 $12,612,339 $3,896,839 $12,718,731 $/Ton $240 $3,081 $3,624 $2,329 $3,243 Incremental Rate $3,081 $3,922

# W 1

**Comb Control (CC) SNCR**  **SCR CC and SNCR**  **CC and SCR**

Capital Cost, $/kW $36 $20 $266 $56 $302 Control Efficiency 27% 20% 74% 41% 81% **Uncontrolled Rate** NOx Rate (lb/hr) 1060 775 775 1060 1060 NOx Rate (lb/MMBtu) 0.26 0.19 0.19 0.26 0.26 NOx (TPY) 4615 3376 3376 4,615 4,615 **Controlled Rate** NOx Rate (lb/hr) 775 620 202 620 202 NOx Rate (lb/MMBtu) 0.19 0.15 0.05 0.15 0.05 NOx (TPY) 3376 2701 880 2,701 880

Tons/Year Removed 1239 675 2496 1,914 3,735

Total Cost/year $1,272,427 $2,515,039 $13,113,990 $3,787,466 $14,386,417 $/Ton $1,027 $3,725 $5,255 $1,979 $3,852 Incremental Rate $3,725 $5,822

# Chemical Engineering Plant Cost Index (CEPCI)

**Year Index**  

# CEPCI % growth from 2000 2000 394.1 

# 0 2001 394.3 

# 0.05% 2002 395.6 

# 0.38% 2003 402.0 

# 2.00% 2004 444.2 

# 12.71% 2005 468.2 

# 18.80% 2006 499.6 

# 26.77% 2007 525.4 

# 33.32% 2008 575.4 

# 46.00% 2009 521.9 

# 32.43% 2010 550.8 

# 39.76% 2011 593.2 

# 50.52% 2012 582.2 

# 47.73%

-4.28% 0% 10% 20% 30% 40% 50% 60%

300 350 400 450 500 550 6002000200120022003200420052006200720082009201020112012**P e** **r c** **e n** **t c** **h a** **n g** **e i** **n C** **E P** **C I** **s i** **n c** **e 2** **0 0** **0 C** **E P** **C I** 



# Year

Chemical Engineering Plant Cost Index (CEPCI) CEPCI % growth from 2000