DSI Cost Model

Variable Designation Units Value Calculation
Unit Size (Gross) A (MW) 100 <

‐‐‐ User Input Retrofit Factor B 0.77 <

‐‐‐ User Input (An "average" retrofit has a factor = 1.0)
Gross Heat Rate C (Btu/kWh) 9478 <

‐‐‐ User Input
SO3 Rate *(converted SO2 rate to SO3 rate) D (lb/MMBtu) 0.01 <

‐‐‐ User Input Type of Coal E PRB <

‐‐‐ User Input Particulate Capture F FF Milled Trona G TRUE Based on in

‐ line milling equipmen t

Removal Target H 90 Maximum Removal Targets: Unmilled Trona with an ESP = 65%; Milled Trona with an ESP = 80%; Unmilled Trona with an BGH = 80%; Milled Trona with an BGH = 90%
Heat Input J (Btu/hr) 9.48E+08 A*C*1000
NSR K (%) 2.61 Dependent on Particulate Capture and Milled Trona
Trona Feed Rate M (ton/hr) 0.040 1.2011e

‐ 6*K*A*C*D Sorbent Waste Rate N (ton/hr) 0.03 Based on a final reaction product of Na2SO4 and unreacted dry sorbent as Na2CO3.

Fly Ash Waste Rate P (ton/hr) 0.00 (A*C)*Ash in Coal*(1

‐ Boiler Ash Removal)/(2*HHV): Bituminous ‐ Ash=0.12, Boiler Ash Removal=0.2, HHV=11000; PRB ‐ Ash=0.06, Boiler Ash Removal=0.2; HHV=8400; Lignite ‐ Ash=0.08, Boiler Ash Removal=0.2, HHV=7200
Aux Power Q (%) 0.65 Should be used for model inpu t
Trona Cost R ($/ton) 145
Waste Disposal Cost S ($/ton) 50
Aux Power Cost T ($/kWh) 0.06 Operating Labor Rate U ($/hr) 60 Labor cost including all benefits

Uncontrolled PM (lb/MWh) 0.32 lb/MWh Controlled PM (lb/MWh) 0.055 lb/MWh
PM Emissions Reduction (lb/MWh) 0.265 lb/MWh

Capital Cost Calculation Example Comments

Includes ‐ Equipment, installation, buildings, foundations, electrical, and retrofit difficult y BM ($) = 2,321,327 $ Total base module cost including retrofit facto r MB ($/kW) = 23 $ Base cost per kW

Total Project Cost

A1 = 116,066 $ Engineering and Construction Management cost s A2 = 116,066 $ Labor adjustment for 6 x 10 hour shift premium, per diem, etc. A3 = 116,066 $ Contractor profit and fees

CECC ($) ‐ Excludes Owner's Costs = 2,669,525 $ Capital, engineering and construction cost subtotal
CECC ($/kW) ‐ Excludes Owner's Costs = 27 $ Capital, engineering and construction cost subtotal per k W

B1 = 133,476 $ Owners costs including all "home office" costs (owners engineering, management, and procurement activities )

TPC' ($) ‐ Includes Onwer's Costs = 2,803,002 $ Total project cost without AFUD C TPC' ($/kW) ‐ Includes Onwer's Costs = 28 $ Total project cost per kW without AFUD C

B2 = ‐ $ AFUCD (Based on 3% per year for a 2 year engineering and construction cycle)

TPC ($) ‐ Includes Owner's Costs and AFUDC = 2,803,002 $ Total project cost TPC ($/kW) ‐ Includes Owner's Costs and AFUDC = 28 $ Total project cost per kW

Fixed O&M Cost

FOMO ($/kW yr) = 1.25 $ Fixed O&M additional operating labor costs FOMM ($/kW yr) = 0.30 $ Fixed O&M additional maintenance material and labor cost s FOMA ($/kW yr) = 0.04 $ Fixed O&M additional administrative labor costs

FOM ($/kW yr) = 1.59 $ Total fixed O&M costs

Variable O&M Cost

VOMR ($/MWh) = 0.06 $ Variable O&M costs for trona reagent VOMW ($/MWh) = 0.01 $ Variable O&M costs for waste disposal that includes both the sorbent and the fly ash wast e VOMP ($/MWh) = 0.39 $ Variable O&M costs for additional auxiliary power required (Refer to Aux Power % above)
0.39 $ The VOMP value was not used. The formula in the column to the left is the formula for VOMP
VOM ($/MWh) = 0.46 $

Interest Rate (%) = 7% Project Life (years) = 20 Capital Recovery Factor = 0.094 0.094

Annualized Capital Costs = 264,584 $
Annual Fixed O&M Costs = 159,053 $
Annual Variable Costs = 343,797 $
Total Annual Costs = 767,433 $ 8 $ $/kW

Annual Electricity Required (MWh) = 4,840 Annual Steam Required (klb) = 0 Annual trona required (tons) = 0.149

# Wet Electrostatic Precipitator Cost Model

Unit Size (MW) 100 Retrofit Factor 0.77 Scaling Factor 1.62 (500/Unit size)^0.3

Capital Cost ($/kW) = 50 $40/kW*scaling factor*retrofit factor Fixed O&M ($/kW

‐ yr) = 1.15 $0.71/kW

‐ yr*scaling factor Variable O&M ($/MWh) = 0.054 0.054 mills/kWh

Interest Rate (%) = 7% Project Life (years) = 20 Capital Recovery Factor = 0.094 0.094

Annual Inflation (%) 2.5
CEPCI 2009 521.9
CEPCI 2002 395.6

Capital Costs ($ 2009) = 6,585,257

Annualized Capital Costs = 621,602 $
Annual Fixed O&M Costs = 136,778 Annual Variable Costs = 47,795 Total Annual Costs = 806,175 $ 8 $ $/kW

Annualized Capital Costs = 886,185 $
Annual Fixed O&M Costs = 295,831 $
Annual Variable Costs = 391,592 $
Total Annual Costs = 1,573,608 $ 16 $ $/kW

PM Emissions (tons) = 119.14
PM Controlled (tons) = 98.66
Cost Effectiveness ($/ton) = 15,950 $

Annual Electricity Required (MWh) = 8,563 Annual Steam Required (klb) = 0 Annual trona required (tons) = 0.15 Combined DSI & WESPSDA FGD Cost Model

Variable Designation Units Value Calculation Unit Size (Gross) A (MW) 500 <---User Input (Greater than 50 MW) Retrofit Factor B 0.77 <---User Input (An "average" retrofit has a factor = 1.0) Gross Heat Rate C (Btu/kWh) 8979 <---User Input SO2 Rate D (lb/MMBtu) 0.90 <---User Input Type of Coal E PRB <---User Input Coal Factor F 1.05 Bit=1, PRB=1.05, Lig=1.07
Heat Rate Factor G 0.8979 C/10000 Heat Input H (Btu/hr) 4.49E+09 A*C*1000 Lime Rate K (ton/hr) 2.83 (0.6702*D^2+13.42*D)*A*G/2000 *((1.495-LN(1-%R))/4.4907)*(%R/0.95)
Waste Rate L (ton/hr) 6.45 (0.8016*D^2+31.1917*D)*A*G/2000 *((1.495-LN(1-%R))/4.4907)*(%R/0.95) Aux Power M (%) 1.23 (0.000547*D^2+0.006498*D+1.3)*F*G -(((0.000547*D^2+0.006498*D)*F*G)*(1-%R/0.95)) Makeup Water Rate N (1000 gph) 26.25 (0.04898*D^2+0.5925*D+55.11)*A*F*G/1000 -(((0.04898*D^2+0.5925*D)*A*F*G/1000)*(1-%R/0.95)) Lime Cost P ($/ton) 95 Waste Disposal Cost Q ($/ton) 30 Aux Power Cost R ($/kWh) 0.06 Makeup Water Cost S ($/1000) 1 Operating Labor Rate T ($/hr) 60 Labor cost including all benefits

Gross Efficiency = 38.0% Percent Reduction = 95.0% 82.7, 87.6 Uncontrolled SO2 Emissions Rate (lb/MWh) = 8.08 Controlled SO2 Emissions Rate (lb/MWh) = 0.40 0.045 lb/MMBtu Capacity Factor = 85%

Capital Cost Calculation Example Comments

Includes - Equipment, installation, buildings, foundations, electrical, and retrofit difficulty BMR ($) = 35,476,590 $ Base module absorber island cost BMF ($) = 18,948,228 $ Base module reagent preparation and waste recycle/handling cost BMB ($) = 51,435,970 $ Base module balance of plan costs including: ID or booster fans, piping, ductwork, electrical, etc.

BM ($) = 105,740,742 $ Total base module cost including retrofit & %R factor - 2.544*%R^2-0.3314*%R+1.0841 MB ($/kW) = 211 $ Base module cost per kW

Total Project Cost

A1 = 10,574,074 $ Engineering and Construction Management costs A2 = 10,574,074 $ Labor adjustment for 6 x 10 hour shift premium, per diem, etc. A3 = 10,574,074 $ Contractor profit and fees

CECC ($) - Excludes Owner's Costs = 137,462,964 $ Capital, engineering and construction cost subtotal CECC ($/kW) - Excludes Owner's Costs = 275 $ Capital, engineering and construction cost subtotal per kW

B1 = 6,873,148 $ Owners costs including all "home office" costs (owners engineering, management, and procurement activities)

TPC' ($) - Includes Onwer's Costs = 144,336,113 $ Total project cost without AFUDC TPC' ($/kW) - Includes Onwer's Costs = 289 $ Total project cost per kW without AFUDC

B2 = 14,433,611 $ AFUCD (Based on 3 year engineering and construction cycle)

TPC ($) - Includes Owner's Costs and AFUDC = 158,769,724 $ Total project cost TPC ($/kW) - Includes Owner's Costs and AFUDC = 318 $ Total project cost per kW

Fixed O&M Cost

FOMO ($/kW yr) = 2.00 $ Fixed O&M additional operating labor costs FOMM ($/kW yr) = 4.12 $ Fixed O&M additional maintenance material and labor costs FOMA ($/kW yr) = 0.11 $ Fixed O&M additional administrative labor costs

FOM ($/kW yr) = 6.23 $ Total fixed O&M costs

Variable O&M Cost

VOMR ($/MWh) = 0.54 $ Variable O&M costs for lime reagent VOMW ($/MWh) = 0.39 $ Variable O&M costs for waste disposal VOMP ($/MWh) = 0.74 $ Variable O&M costs for additional auxiliary power required including additional fan power VOM ($/MWh) = 0.05 $ Variable O&M costs for makeup water

VOM ($/MWh) = 1.72 $

Interest Rate (%) = 7% Project Life (years) = 20 Capital Recovery Factor = 0.09439

Annualized Capital Costs = 14,986,739 $ Annual Fixed O&M Costs = 3,112,955 $ Annual Variable Costs = 6,390,775 $ Total Annual Costs = 24,490,469 $ 49 $ $/kW

SO2 Emissions (tons) = 752 SO2 Controlled (tons) = 14,291 Cost Effectiveness ($/ton) = 1,714 $ Make-up Power Air Emisisons Annual Electricity Required (MWh) = 45,851 PM (lbs) = 252 Annual Waste Generated (tons) = 48,007 SO2 (tons) = 22.9 Annual Water Required (1,000 gallons) = 195,448 NOx (tons) = 16.0 Annual Lime Required (tons) = 21,095 CO (tons) = 9.2 Hg (lbs) = 0.00046 CO2 (tons) = 42,642Wet FGD Cost Model

Variable Designation Units Value Calculation
Wastewater Treatment Unit Size (Gross) A (MW) 500 <---User Input (Greater than 100 MW) Retrofit Factor B 0.77 <---User Input (An "average" retrofit has a factor = 1.0) Gross Heat Rate C (Btu/kWh) 8979 <---User Input SO2 Rate D (lb/MMBtu) 3.44 <---User Input Type of Coal E Bituminous <---User Input Coal Factor F 1 Bit=1, PRB=1.05, Lig=1.07
Heat Rate Factor G 0.8979 C/10000 Heat Input H (Btu/hr) 4.49E+09 A*C*1000 Limestone Rate K (ton/hr) 13 17.52*A*D*G/2000 *(%R/0.98)
Waste Rate L (ton/hr) 24 1.811* K *(%R/0.98)
Aux Power M (%) 1.40 (1.05e^(0.155*D))*F* G *(124.32*(%R)^2-231.65*(%R)+108.62) Makeup Water Rate N (1000 gph) 36.08 (1.674*D+74.68)*A*F*G/1000 -(((1.674*D)*A*F*G/1000)*(1-%R/0.98) ) Limestone Cost P ($/ton) 15 Waste Disposal Cost Q ($/ton) 30 Aux Power Cost R ($/kWh) 0.06 Makeup Water Cost S ($/1000) 1 Operating Labor Rate T ($/hr) 60 Labor cost including all benefits

Gross Efficiency = 38.0% Percent Reduction = 96.8% 95, 96.75 Uncontrolled SO2 Emissions Rate (lb/MWh) = 30.89 Controlled SO2 Emissions Rate (lb/MWh) = 1.00 0.112 lb/MMBtu Capacity Factor = 85%

Capital Cost Calculation Example Comments

Includes - Equipment, installation, buildings, foundations, electrical, minor physical/ chemical wastewater treatment and retro fit difficulty BMR ($) = 34,342,198 $ Base absorber island cost BMF ($) = 17,495,395 $ Base reagent preparation cost BMW ($) = 10,948,563 $ Base waste handling cost BMB ($) = 63,762,570 $ Base balance of plan costs including: ID or booster fans, new wet chimney, piping, ductwork, minor WWT, etc. BMWW ($) = - $ Base wastewater treatment facility, beyond minor physical/chemical treatment

BM ($) = 125,179,245 $ Total base cost including retrofit & %R factor - 7.622*%R^2-14.011*%R+7.4102 MB ($/kW) = 250 $ Base cost per kW

Total Project Cost

A1 = 12,517,925 $ Engineering and Construction Management costs A2 = 12,517,925 $ Labor adjustment for 6 x 10 hour shift premium, per diem, etc. A3 = 12,517,925 $ Contractor profit and fees

CECC ($) - Excludes Owner's Costs = 162,733,019 $ Capital, engineering and construction cost subtotal CECC ($/kW) - Excludes Owner's Costs = 325 $ Capital, engineering and construction cost subtotal per kW

B1 = 8,136,651 $ Owners costs including all "home office" costs (owners engineering, management, and procurement activities)

TPC' ($) - Includes Onwer's Costs = 170,869,670 $ Total project cost without AFUDC TPC' ($/kW) - Includes Onwer's Costs = 342 $ Total project cost per kW without AFUDC

B2 = 17,086,967 $ AFUCD (Based on 3 year engineering and construction cycle)

TPC ($) - Includes Owner's Costs and AFUDC = 187,956,637 $ Total project cost TPC ($/kW) - Includes Owner's Costs and AFUDC = 376 $ Total project cost per kW

Fixed O&M Cost

FOMO ($/kW yr) = 3.00 $ Fixed O&M additional operating labor costs FOMM ($/kW yr) = 4.88 $ Fixed O&M additional maintenance material and labor costs FOMA ($/kW yr) = 0.15 $ Fixed O&M additional administrative labor costs FOMWW ($/kW yr) = - $ Fixed O&M costs for wastewater treatment facility

FOM ($/kW yr) = 8.02 $ Total fixed O&M costs

Variable O&M Cost

VOMR ($/MWh) = 0.40 $ Variable O&M costs for limestone reagent VOMW ($/MWh) = 1.43 $ Variable O&M costs for waste disposal VOMP ($/MWh) = 0.84 $ Variable O&M costs for additional auxiliary power required including additional fan power VOM ($/MWh) = 0.07 $ Variable O&M costs for makeup water VOMWW ($/MWh) = - $ Variable O&M costs for wastewater treatment facility

VOM ($/MWh) = 2.74 $

Interest Rate (%) = 7% Project Life (years) = 20 Capital Recovery Factor = 0.09439

Annualized Capital Costs = 17,741,777 $ Annual Fixed O&M Costs = 4,010,347 $ Annual Variable Costs = 10,214,383 $ Total Annual Costs = 31,966,508 $ 64 $ $/kW

SO2 Emissions (tons) = 1,869 SO2 Controlled (tons) = 55,629 Cost Effectiveness ($/ton) = 575 $ Make-up Power Air Emisisons Annual Electricity Required (MWh) = 51,995 PM (lbs) = 286 Annual Waste Generated (tons) = 177,808 SO2 (tons) = 26 Annual Water Required (1,000 gallons) = 268,651 NOx (tons) = 18 Annual Limestone Required (tons) = 99,451 CO (tons) = 10.4 Additional Chemically Created CO2 (tons) = 38,245 Hg (lbs) = 0.00052 CO2 (tons) = 86,601 Minor physical/chemicalCFB FGD Cost Model

Variable Designation Units Value Calculation Unit Size (Gross) A (MW) 400 <---User Input (Greater than 50 MW) Retrofit Factor B 0.77 <---User Input (An "average" retrofit has a factor = 1.0) Gross Heat Rate C (Btu/kWh) 8979 <---User Input SO2 Rate (prior to limestone injection to bed) = (lb/MMBtu) 2.50 <---User Input SO2 Rate (to the SDA) = D (lb/MMBtu) 0.50 Type of Coal E Lignite <---User Input Coal Factor F 1.07 Bit=1, PRB=1.05, Lig=1.07
Heat Rate Factor G 0.8979 C/10000 Heat Input H (Btu/hr) 3.59E+09 A*C*1000 Lime Rate K (ton/hr) 0.53 (0.6702*D^2+13.42*D)*A*G/2000 *((1.495-LN(1-%R))/4.4907)*(%R/0.95)
Waste Rate L (ton/hr) 1.22 (0.8016*D^2+31.1917*D)*A*G/2000 *((1.495-LN(1-%R))/4.4907)*(%R/0.95) Aux Power M (%) 1.25 (0.000547*D^2+0.006498*D+1.3)*F*G -(((0.000547*D^2+0.006498*D)*F*G)*(1-%R/0.95)) Makeup Water Rate N (1000 gph) 21.26 (0.04898*D^2+0.5925*D+55.11)*A*F*G/1000 -(((0.04898*D^2+0.5925*D)*A*F*G/1000)*(1-%R/0.95)) Lime Cost P ($/ton) 95 Waste Disposal Cost Q ($/ton) 30 Aux Power Cost R ($/kWh) 0.06 Makeup Water Cost S ($/1000) 1 Operating Labor Rate T ($/hr) 60 Labor cost including all benefits

Gross Efficiency = 38.0% Reduction from Limestone to FB = 80.0% Percent reduction in SDA = 68.8% 68.8, 77.7 Overall Percent Reduction = 93.8% Uncontrolled SO2 Emissions Rate (lb/MWh) = 4.49 Controlled SO2 Emissions Rate (lb/MWh) = 1.40 0.156 lb/MMBtu Capacity Factor = 85%

Capital Cost Calculation Example Comments

Includes - Equipment, installation, buildings, foundations, electrical, and retrofit difficulty BMR ($) = 30,403,127 $ Base module absorber island cost BMF ($) = 14,359,077 $ Base module reagent preparation and waste recycle/handling cost BMB ($) = 44,173,027 $ Base module balance of plan costs including: ID or booster fans, piping, ductwork, electrical, etc.

BM ($) = 86,846,633 $ Total base module cost including retrofit & %R factor - 2.544*%R^2-0.3314*%R+1.0841 MB ($/kW) = 217 $ Base module cost per kW

Total Project Cost

A1 = 8,684,663 $ Engineering and Construction Management costs A2 = 8,684,663 $ Labor adjustment for 6 x 10 hour shift premium, per diem, etc. A3 = 8,684,663 $ Contractor profit and fees

CECC ($) - Excludes Owner's Costs = 112,900,623 $ Capital, engineering and construction cost subtotal CECC ($/kW) - Excludes Owner's Costs = 282 $ Capital, engineering and construction cost subtotal per kW

B1 = 5,645,031 $ Owners costs including all "home office" costs (owners engineering, management, and procurement activities)

TPC' ($) - Includes Onwer's Costs = 118,545,654 $ Total project cost without AFUDC TPC' ($/kW) - Includes Onwer's Costs = 296 $ Total project cost per kW without AFUDC

B2 = 11,854,565 $ AFUCD (Based on 3 year engineering and construction cycle)

TPC ($) - Includes Owner's Costs and AFUDC = 130,400,220 $ Total project cost TPC ($/kW) - Includes Owner's Costs and AFUDC = 326 $ Total project cost per kW

Fixed O&M Cost

FOMO ($/kW yr) = 2.50 $ Fixed O&M additional operating labor costs FOMM ($/kW yr) = 4.23 $ Fixed O&M additional maintenance material and labor costs FOMA ($/kW yr) = 0.13 $ Fixed O&M additional administrative labor costs

FOM ($/kW yr) = 6.85 $ Total fixed O&M costs

Variable O&M Cost

VOMR ($/MWh) = 0.13 $ Variable O&M costs for lime reagent VOMW ($/MWh) = 0.09 $ Variable O&M costs for waste disposal VOMP ($/MWh) = 0.75 $ Variable O&M costs for additional auxiliary power required including additional fan power VOM ($/MWh) = 0.05 $ Variable O&M costs for makeup water

VOM ($/MWh) = 1.02 $

Interest Rate (%) = 7% Project Life (years) = 20 Capital Recovery Factor = 0.09439

Annualized Capital Costs = 12,308,858 $ Annual Fixed O&M Costs = 2,740,471 $ Annual Variable Costs = 3,041,061 $ Total Annual Costs = 18,090,391 $ 45 $ $/kW

SO2 Emissions (tons) = 2,086 SO2 Controlled (tons) = 4,600 Cost Effectiveness ($/ton) = 3,933 $ Make-up Power Air Emisisons Annual Electricity Required (MWh) = 37,270 PM (lbs) = 205 Annual Waste Generated (tons) = 9,060 SO2 (tons) = 19 Annual Water Required (1,000 gallons) = 158,337 NOx (tons) = 13 Annual Lime Required (tons) = 3,945 CO (tons) = 7 Hg (lbs) = 0.00037 CO2 (tons) = 34,661SCR Cost Model

Variable Designation Units Value Calculation Unit Size A (MW) 100 <---User Input Retrofit Factor B 0.77 <---User Input (An "average" retrofit has a factor = 1.0)
Heat Rate C (Btu/kWh) 9478 <---User Input NOx Rate D (lb/MMBtu) 0.25 <---User Input SO2 Rate E (lb/MMBtu) 0.9 Type of Coal F PRB <---User Input Coal Factor G 1.05 Bit=1, PRB=1.05, Lig=1.07
Heat Rate Factor H 0.9478 C/10000 Heat Input I (Btu/hr) 9.48E+08 A*C*1000 Capacity Factor J (%) 85 <---User Input NOx Removal Efficiency K (%) 58 58, 70.5 NOx Removal Factor L 7.25E-01 K/80 NOx Removed M (lb/hr) 137 D*I/10^6*K/100 Urea Rate (100%) N (lb/hr) 96 M*0.525*60/46*1.01/0.99 Steam Required O (lb/hr) 108 N*1.13 Aux Power P (%) 0.56 0.56*(G*H)^0.43 *(1+((D-0.21)/0.21)*0.05+(K-70)/70*0.05) Urea Cost 50% wt solution R ($/ton) 310 Catalyst Cost S ($/m3) 8000 Aux Power Cost T ($/kWh) 0.06 Steam Cost U ($/klb) 4 Operating Labor Rate V ($/hr) 60 Labor cost including all benefits

Gross Efficiency (%) = 36.0% Uncontrolled NOx Emissions Rate (lb/MWh) = 2.37 Controlled NOx Emissions Rate (lb/MWh) = 1.00 0.105 lb/MMBtu

Capital Cost Calculation Comments

Includes - Equipment, installation, buildings, foundations, electrical, and retrofit difficulty BMR ($) = 8,951,676 $ SCR (Inlet Ductwork, Reactor, Bypass) Island Cost BMF ($) = 1,403,799 $ Base reagent preparation cost BMA ($) = - $ Air heater modification / SO3 control (Bituminous only & > 3lb/MMBtu) BMB ($) = 2,020,202 $ Base balance of plan costs including: ID or booster fans, new wet chimney, piping, ductwork, minor WWT, etc.

BM ($) = 12,375,678 $ Total base module cost including retrofit factor MB ($/kW) = 124 $ Base cost per kW

Total Project Cost

A1 = 1,237,568 $ Engineering and Construction Management costs A2 = 1,237,568 $ Labor adjustment for 6 x 10 hour shift premium, per diem, etc. A3 = 1,237,568 $ Contractor profit and fees

CECC ($) - Excludes Owner's Costs = 16,088,381 $ Capital, engineering and construction cost subtotal CECC ($/kW) - Excludes Owner's Costs = 161 $ Capital, engineering and construction cost subtotal per kW

B1 = 804,419 $ Owners costs including all "home office" costs (owners engineering, management, and procurement activities )

TPC' ($) - Includes Owner's Costs = 16,892,800 $ Total project cost without AFUDC TPC' ($/kW) - Includes Owner's Costs = 169 $ Total project cost per kW without AFUDC

B2 = 1,013,568 $ AFUCD (Based on 3% per year for a 2 year engineering and construction cycle)

TPC ($) - Includes Owner's Costs and AFUDC = 17,906,368 $ Total project cost TPC ($/kW) - Includes Owner's Costs and AFUDC = 179 $ Total project cost per kW

Fixed O&M Cost

FOMO ($/kW yr) = 0.62 $ Fixed O&M additional operating labor costs FOMM ($/kW yr) = 2.00 $ Fixed O&M additional maintenance material and labor costs

FOM ($/kW yr) = 2.62 $ Total fixed O&M costs

Variable O&M Cost

VOMR ($/MWh) = 0.30 $ Variable O&M costs for Urea VOMW ($/MWh) = 0.30 $ Variable O&M costs for catalyst; replacement & disposal VOMM ($/MWh) = 0.00 $ Variable O&M costs for steam VOMP ($/MWh) = 0.34 $ Variable O&M costs for electric power (added by OAQPS)

VOM ($/MWh) = 0.93 $

Interest Rate (%) = 7% Project Life (years) = 20 Capital Recovery Factor = 0.09439

Annualized Capital Costs = 1,690,234 $ Annual Fixed O&M Costs = 262,400 $ Annual Variable Costs = 694,796 $ Total Annual Costs = 2,647,430 $ 26 $ $/kW

NOx Emissions (tons) = 371 NOx Controlled (tons) = 512 Cost Effectiveness ($/ton) = 5,174 $ Make-up Power Air Emisisons Annual Electricity Required (MWh) = 4,165 PM (lbs) = 23 Annual Steam Required (klb) = 808 SO2 (tons) = 2.1 Annual urea required (tons) = 357 NOx (tons) = 1.5 Chemically Created CO2 (tons) = 262 CO (tons) = 0.85 Hg (lbs) = 0.000043 CO2 (tons) = 4,235SNCR Cost Model

Variable Designation Units Value Calculation Boiler Type CFB <---User Input Unit Size A (MW) 400 <---User Input Retrofit Factor B 0.77 <---User Input (An "average" retrofit has a factor = 1.0)
Heat Rate C (Btu/kWh) 8979 <---User Input NOx Rate D (lb/MMBtu) 0.13 <---User Input SO2 Rate E (lb/MMBtu) 2.5 Type of Coal F Lignite <---User Input Coal Factor G 1.07 Bit=1, PRB=1.05, Lig=1.07
Heat Rate Factor H 0.8979 C/10000 Heat Input I (Btu/hr) 3.59E+09 A*C*1000 Capacity Factor J (%) 85 <---User Input NOx Removal Efficiency K (%) 15 14.5, 40 NOx Removed L (lb/hr) 68 D*I/10^6*K/100 Urea Rate (100%) M (lb/hr) 147 L/UF/46*30; IF Boiler Type = CFB OR D > 0.3 THEN UF = 0.30; ELSE UF = 0.15 Water Required N (lb/hr) 1325 M*9 Aux Power O (%) 0.023 0.05 *(300*M)/(A*245) Dilution Water Rate P (1000 gph) 0.16 N*0.12/1000 Urea Cost 50% wt solution Q ($/ton) 310 Aux Power Cost R ($/kWh) 0.06 Dilution Water Cost S ($/kgal) 1 Operating Labor Rate T ($/hr) 60 Labor cost including all benefits

Gross Efficiency (%) = 38.0% Uncontrolled NOx Emissions Rate (lb/MWh) = 1.17 Controlled NOx Emissions Rate (lb/MWh) = 1.00 0.11115 lb/MMBtu

Capital Cost Calculation Example Comments

Includes - Equipment, installation, buildings, foundations, electrical, and retrofit difficulty BMS ($) = 1,857,531 $ SNCR (Injectors, Blowers, DCS, Reagent System) Cost BMA ($) = - $ Air heater modification / SO3 control (Bituminous only & > 3lb/MMBtu) BMB ($) = 2,490,039 $ Base balance of plan costs including: ID or booster fans, new wet chimney, piping, ductwork, minor WWT, etc.

BM ($) = 4,347,571 $ Total base module cost including retrofit factor MB ($/kW) = 11 $ Base cost per kW

Total Project Cost

A1 = 434,757 $ Engineering and Construction Management costs A2 = 434,757 $ Labor adjustment for 6 x 10 hour shift premium, per diem, etc. A3 = 434,757 $ Contractor profit and fees

CECC ($) - Excludes Owner's Costs = 5,651,842 $ Capital, engineering and construction cost subtotal CECC ($/kW) - Excludes Owner's Costs = 14 $ Capital, engineering and construction cost subtotal per kW

B1 = 282,592 $ Owners costs including all "home office" costs (owners engineering, management, and procurement activities)

TPC ($) = 5,934,434 $ Total project cost TPC ($/kW) = 15 $ Total project cost per kW

Fixed O&M Cost

FOMO ($/kW yr) = 0.16 $ Fixed O&M additional operating labor costs FOMM ($/kW yr) = 0.13 $ Fixed O&M additional maintenance material and labor costs

FOM ($/kW yr) = 0.29 $ Total fixed O&M costs

Variable O&M Cost

VOMR ($/MWh) = 0.11 $ Variable O&M costs for Urea VOMM ($/MWh) = 0.00 $ Variable O&M costs for dilution water VOMP ($/MWh) = 0.01 $ Variable O&M costs for electric power (added by OAQPS)

VOM ($/MWh) = 0.13 $

Interest Rate (%) = 7% Project Life (years) = 20 Capital Recovery Factor = 0.09439

Annualized Capital Costs = 560,169 $ Annual Fixed O&M Costs = 114,571 $ Annual Variable Costs = 381,164 $ Total Annual Costs = 1,055,904 $ 3 $ $/kW

NOx Emissions (tons) = 1,486 NOx Controlled (tons) = 252 Cost Effectiveness ($/ton) = 4,189 $ Make-up Power Air Emisisons Annual Electricity Required (MWh) = 671 PM (lbs) = 3.7 Annual Urea Required (tons) = 548 SO2 (tons) = 0.34 Annual Water Required (1,000 gallons) = 1,184 NOx (tons) = 0.23 Chemically Created CO2 (tons) = 402 CO (tons) = 0.13 Hg (lbs) = 0.0000067 CO2 (tons) = 1,026