1 2 3 4 5 6 7 8 9

Capacity Fuel

Unique ID Name Plant Code Unit MW gross Fuel Avg NOx Avg SO2 2011NOx

126_1 Sundt 126 1 108.8 Natural gas 0.156 0.003 0.153

126_2 Sundt 126 2 108.8 Natural gas 0.17 0.003 0.146

126_3 Sundt 126 3 113.6 Natural gas 0.16 0.003 0.161

113_1 Cholla 113 1 113.6 C 0.188 0.118 0.22

8223_1 Springerville 8223 1 424.8 C 0.182 0.218 0.18

8223_2 Springerville 8223 2 424.8 C 0.19 0.185 0.188

Notes: 1 1 1

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

2 This is an estimate for 2008-2011 period based upon reported heat input, capacity and heat rate in NE

3 From NEEDS v4.10

Economic Assumptions: 

Capital Recovery Factor 9.44%

Interest Rate 7.00%

Period (yrs) 20

Insurance 0.30% From Integrated Planning Model ver 4.10 documentationpage 8-11

Property Taxes 0.90% From Integrated Planning Model ver 4.10 documentationpage 8-11

2008-2010 Reported Avg 2011 Reported Rates
10 11 12 13 14

2008-2011

2011 SO2 model NOx model SO2 Capac. Fctr Heat Rate Burner Controls BART or RP

Wkbk 

split?

0.003 0.155 9% 11289 T RP 3

0.003 0.164 10% 11020 T RP 3

0.004 0.16 16% 11319 T RP 3

0.202 0.22 na 86% 10964 T LNC2 RP 3

0.253 0.181 na 65% 10001 T LNC1 RP 3

0.167 0.19 na 70% 9893 T LNC1 RP 3

1 1 1 2 3

n Air Markets Division Web Site

nput, capacity and heat rate in NEEDS v4.10

cumentationpage 8-11

cumentationpage 8-11

2011 Reported Rates modelled rate
NA 7 8 10

2008-2011 

Reported 2008-2010 Reported Avg

Notes on model NOx (past tense = Phase 1 work) Avg NOx Avg NOx Avg SO2 2011 SO2

Use 2008-2011 avg 0.079 0.104 0.003 0.003

Use 2008-2011 avg 0.081 0.106 0.003 0.003

Use 2008-2011 avg 0.082 0.108 0.003 0.004

Use 2011 only, post-coal switch 0.182 0.175 0.118 0.202

Use 2008-2011 avg 0.208 0.193 0.218 0.253

Use 2008-2011 avg 0.183 0.188 0.185 0.167

1 1 1
12

model SO2
Variable Designation Units

Unique ID 113_1

Plant Cholla

Unit 1

Unit Size A MW 113.6

Gross Heat Rate C Btu/kwhr 10964

NOx Rate D lb/Mmbtu 0.22

CF J CF 0.86

Type of Coal F prb

Coal Factor G 1.05

Retrofit Factor B 1

HR Factor H 1.0964

Heat Input I Btu/hr 1.25E+09

CF J 0.86

NOx Removal Eff K % 77.3%

NOx Removal factor L 0.97

NOx Removed M lb/hr 2.12E+02

Urea rate (100%) N lb/hr 148

Steam Required O lb/hr 167

Aux. Power P % 0.59

Urea Cost (50% sol) R $/ton 400

Catalyst Cost S $/m3 8000

Aux Power Cost T $/kwh 0.06

Steam Cost U $/Klb 4

Operating Labor Rate V $/hr 60

Capital Cost Calculation (includes equipment, installation, buildings, foundations,electrical, minor physical/chemical ww tr

BMR ($) = SCR 15,829,729

BMF ($) = base reagent preparation cost 1,563,986

BMA ($) = APH (SO@> 3lb/Mmbtu)

BMB ($) = fans/aux power 2,942,585

BM ($) = Total base cost 20,336,300

BM ($/KW) = 179

Total Project Cost

A1 = 10% of BM ($) = Eng. and Construction management 2,033,630

A2 = 10% of BM ($) = Labor adjustment 2,033,630

A3 = 10% of BM ($) = Contractor profit/fees 2,033,630
CECC ($) = Cap., Eng. and management 26,437,190

CECC ($/kw) = 233

B1 = 5% of CECC owners cost -

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

TPC ($) = Total project cost 26,437,190

TPC ($/kw) = 233

Fixed O&M Cost

FOMO ($/kw-yr) = fixed O&M - additional labor cost 0.5

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

FOM ($/kw-yr) = Total Fixed O&M Cost 3.19

Variable O&M Cost

VOMR ($/MWhr) = Variable O&M - urea 0.52

VOMW ($/MWhr) = Variable O&M - catalyst disposal 0.36

VOMP ($/MWhr)= Variable O&M Power 0.36

VOMM ($/MWhr) = Variable O&M - steam 0.006

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

CR = 9.44%

Property Taxes and Insurance 1.20%

Total Charge Rate 10.64%

Cost of control - $/Ton

CF 86%

Control Efficiency 77%

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

NOx Rate (lb/hr) Lb/hr*8760*CF/2000 274

NOx Rate (lb/MMBtu) 0.220

NOx (TPY) 1032

Controlled Rate

NOx Rate (lb/hr) 62.3

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

Tons/Year Removed 798

Annualized capital cost $2,812,730

Fixed O&M $362,400

Variable O&M $1,062,737

Total Cost/year $4,237,867

$/Ton $5,313
Value

8223_1 8223_2

Springerville Springerville

1 2

424.8 424.8

10001 9893

0.181 0.19

0.65 0.7

prb prb blends are treated as PRB to be conservative

1.05 1.05 Bit=1; PRB=1.05; Lig=1.07

1 1 1 = typical retrofit

1.0001 0.9893 C/10000

4.25E+09 4.20E+09 A*C*1000

0.65 0.7 read from Plant Data table

72.4% 73.7% for NOx>0.5lb/Mbtu=90%; <.5 = (NOx-0.05)/NOx

0.90 0.92 equals K/80% based upon 8/10/12 email from Sargent & Lundy, and See pdf pg 10/79 at h

5.57E+02 5.88E+02 D*I/10^6*K

389 411 M*0.525*60/46*1.01/.99

439 464 N*1.13

0.57 0.57 0.56*(G*H)^0.43

400 400

8000 8000

0.06 0.06

4 4

60 60 Total Labor Cost

nor physical/chemical ww treatment and retrofit difficulty)

 48,309,986 48,001,528

 1,991,401 2,019,268

 4,926,504 4,904,089

 55,227,890 54,924,886

 130 129

 5,522,789 5,492,489

 5,522,789 5,492,489

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

 169 168

 - -

 - -

 71,796,257 71,402,351

 169 168

0.1 0.1

0.7 0.7

0.85 0.85

0.37 0.39

0.45 0.43 See pdf pg 10/79 at http://www.epa.gov/airmarkets/progsregs/epa-ipm/docs/SuppDoc410

0.34 0.34 This is not included in the S&L calculations, but should be

0.004 0.004

1.17 1.16

9.44% 9.44%

1.20% 1.20%

10.64% 10.64%

65% 70%

72% 74%

769 798

0.181 0.190

2189 2448

212.4 210.1

0.05 0.05
605 644

1584 1804

$7,638,614 $7,596,705

$362,400 $362,400

$2,819,409 $3,017,114

$10,820,423 $10,976,219

$6,829 $6,085
Calculation

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
sregs/epa-ipm/docs/SuppDoc410MATS.pdf





SCR for Oil/Gas units

BASE UNIT (200MW) TPC ($/KW) FOM ($/kw-yr) VOM (mills/kwhr)

75 1.08 0.12

Variable Designation Units Value

Unique ID 126_1 126_2

Plant Sundt Sundt

Unit 1 2

Unit Size A MW 108.8 108.8

Gross Heat Rate C Btu/kwhr 11289 11020

NOx Rate D lb/Mmbtu 0.155 0.164

CF J % 9.00% 10.00%

Retrofit Factor B 1 1

Heat Input I Btu/hr 1.23E+09 1.20E+09

NOx Removal Eff K % 80% 80%

NOx Removed M lb/hr 1.52E+02 1.57E+02

Urea rate (100%) N lb/hr 106 110

Steam Required O lb/hr 120 124

Aux. Power P % 0.50 0.50

Urea Cost (50% sol) R $/ton 500 500

Catalyst Cost S $/m3 8000 8000

Aux Power Cost T $/kwh 0.06 0.06

Steam Cost U $/Klb 4 4

Operating Labor Rate V $/hr 60 60

TPC ($) = 10,097,888 10,097,888

TPC ($/kw) = 93 93

Fixed O&M Cost

FOM ($/kw-yr) = 1.34 1.34

Variable O&M Cost

VOM ($/MWhr) = 0.12 0.12
CR = 9.44% 9.44%

Property Taxes and Insurance 1.20% 1.20%

Total Charge Rate 10.64% 10.64%

Cost of control - $/Ton

CF 9% 10%

Control Efficiency 80% 80%

Uncontrolled Rate

NOx Rate (lb/hr) 190 197

NOx Rate (lb/MMBtu) 0.155 0.164

NOx (TPY) 75 86

Controlled Rate

NOx Rate (lb/hr) 38.1 39.3

NOx Rate (lb/MMBtu) 0.03 0.03

NOx (TPY) 15 17

Tons/Year Removed 60 69

Annualized capital cost $1,074,344 $1,074,344

Fixed O&M $145,410 $145,410

Variable O&M $10,293 $11,437

Total Cost/year $1,230,047 $1,231,190

$/Ton $20,488 $17,869
SCALING FACTORS (TPC and FOM)

(base cost)*(200/MW)^0.35

% NOx Reduction

80

Calculation

126_3

Sundt

3

113.6 user input

11319 user input

0.16 user input

16.00% user input

1 1 = typical retrofit

1.29E+09 A*C*1000

80% user input

1.65E+02 D*I/10^6*K/100

115 M*0.525*60/46*1.01/.99

130 N*1.13

0.50

500

8000

0.06

4

60 Total Labor Cost

 10,385,267 Total project cost

 91

1.32 Total Fixed O&M Cost

0.12 Total Variable O&M Cost
9.44%

1.20%

10.64%

16%

80%

206 (lb/Mbtu*Heat Input)/1000000

0.16

144 Lb/hr*8760*CF/2000

41.1

0.03

29

115

$1,104,919

$149,548

$19,107

$1,273,573 TPC*CR+(FOM*MW)+VOM(MW*8760)*CF

$11,042
http://www.epa.gov/airmarkets/progsregs/epa-ipm/BaseCasev410.html#documentation
t Input)/1000000

*MW)+VOM(MW*8760)*CF
10.html#documentation
Variable Designation Units Value

Unique ID 113_1 126_1 126_2

Plant Cholla Sundt Sundt

Unit 1 1 2

Unit Size A MW 113.6 108.8 108.8

Heat Rate C Btu/kwhr 10964 11289 11020

NOx Rate D lb/Mmbtu 0.22 0.155 0.164

CF I % 0.86 0.09 0.1

Type of fuel prb prb prb

Coal Factor F 1.05 1.05 1.05

Retrofit Factor B 1 1 1

HR Factor G 1.0964 1.1289 1.102

Heat Input H Btu/hr 1.25E+09 1.23E+09 1.20E+09

NOx Removal Eff J % 30% 20% 20%

NOx Removed K lb/hr 8.22E+01 3.81E+01 3.93E+01

Urea rate (100%) L lb/hr 214.44 99.33 102.59

Water Required M lb/hr 1930 894 923

Aux. Power N % 0.05 0.05 0.05

Dilution water rate O (1000gph) 0.232 0.107 0.111

Urea Cost (50% sol) P $/ton 500 500 500

Aux Power Cost Q $/kwh 0.06 0.06 0.06

Dilution water Cost R $/Kgal 1 1 1

Operating Labor Rate S $/hr 60 60 60

Includes equipment, inatallation,buildings,electrical, retrofit difficulty

BMS ($) = 1881573 1802070 1802070

BMA ($) = 

BMB ($) = 

BM ($) = 1,881,573 1,802,070 1,802,070

BM ($/KW) = 17 17 17

Total Project Cost

A1 = 5% of BM ($) = 94079 90104 90104

A2 = 5% of BM ($) = 94079 90104 90104

A3 = 5% of BM ($) = 94079 90104 90104

CECC ($) = 2,163,810 2,072,381 2,072,381
CECC ($/kw) = 19 19 19

B1 = 5% of CECC 108,190 103,619 103,619

TPC ($) = 2,272,000 2,176,000 2,176,000

TPC ($/kw) = 20 20 20

Fixed O&M Cost

FOMO ($/kw-yr) = 0.54930 0.57353 0.57353

FOMM ($/kw-yr) = 0.20 0.20 0.20

FOM ($/kw-yr) = 0.75 0.77 0.77

Variable O&M Cost

VOMR ($/MWhr) = 0.94 0.46 0.47

VOMM ($/MWhr) = 0.0005 0.0006 0.0006

VOMP ($/MWhr)= Variable O&M Power 0.03 0.03 0.03

VOM ($/MWhr) = 0.97 0.49 0.50

CR = 9.44% 9.44% 9.44%

Property Taxes and Insurance 1.20% 1.20% 1.20%

Total Charge Rate 10.64% 10.64% 10.64%

Cost of control - $/Ton

CF 86% 9% 10%

Control Efficiency 30% 20% 20%

Uncontrolled Rate

NOx Rate (lb/hr) 274 190 197

NOx Rate (lb/MMBtu) 0.22 0.155 0.164

NOx (TPY) 1032 75 86

Controlled Rate

NOx Rate (lb/hr) 192 152 157

NOx Rate (lb/MMBtu) 0.15 0.12 0.13

NOx (TPY) 723 60 69

Tons/Year Removed 310 15 17

Annualized capital cost $241,725 $231,511 $231,511
Fixed O&M $84,979 $84,025 $84,025

Variable O&M $833,896 $41,776 $47,847

Total Cost/year $1,160,599 $357,311 $363,382

$/Ton $3,748 $23,806 $21,096
126_3 8223_1 8223_2

Sundt Springerville Springerville

3 1 2

113.6 424.8 424.8

11319 10001 9893

0.16 0.181 0.19

0.16 0.65 0.7

prb prb prb PRB assumed for conservativeness

1.05 1.05 1.05 Bit=1; PRB=1.05; Lig=1.07; gas=1 

1 1 1 1 = typical retrofit

1.1319 1.0001 0.9893 C/10000

1.29E+09 4.25E+09 4.20E+09 A*C*1000

20% 30% 30% 30% - coal; 20% - gas

4.11E+01 2.31E+02 2.40E+02 D*H/10^6*j

107.34 601.80 624.90 K/UF/46*30; For CFB and SO2>3 then UF=0.25; otherwise UF=0.15 

966 5416 5624 L*9

0.05 0.05 0.05

0.116 0.650 0.675 M*0.12/1000 http://www.epa.gov/airmarkets/progsregs/

500 500 500

0.06 0.06 0.06 Note: Capital Cost equations were modified 

1 1 1

60 60 60 Total Labor Cost

1881573 7036025 7036025 SNCR

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

BOP

 1,881,573 7,036,025 7,036,025 Total base cost

 17 17 17

94079 351801 351801 Eng. and Construction management

94079 351801 351801 Labor adjustment

94079 351801 351801 Contractor profit/fees

 2,163,810 8,091,429 8,091,429 Cap., Eng. and management 
 19 19 19

 108,190 404,571 404,571 owners cost

 2,272,000 8,496,000 8,496,000 Total project cost

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

0.54930 0.14689 0.14689 fixed O&M - additional labor cost

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

0.75 0.35 0.35 Total Fixed O&M Cost

0.47 0.71 0.74 Variable O&M - urea 

0.0005 0.0001 0.0001 Variable O&M - dilution water

0.03 0.03 0.03 This is not included in the S&L calculations, but should be

0.50 0.74 0.77 Total Variable O&M Cost

9.44% 9.44% 9.44%

1.20% 1.20% 1.20%

10.64% 10.64% 10.64%

16% 65% 70%

20% 30% 30%

(lb/Mbtu*Heat Input)/1000000

206 769 798 Lb/hr*8760*CF/2000

0.16 0.181 0.19

144 2189 2448

165 538 559

0.13 0.13 0.13 TPC*CR+(FOM*MW)+VOM(MW*8760)*CF

115 1532 1714

29 657 734

$241,725 $903,914 $903,914
$84,979 $146,832 $146,832

$80,084 $1,786,227 $1,994,459

$406,788 $2,836,973 $3,045,205

$14,107 $4,320 $4,146
; otherwise UF=0.15 

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

Capital Cost equations were modified to be a constant $20/kWe because in my judgement S&L's scaling will result in overprediction of cos
0/kW for all applications

Calculation

 judgement S&L's scaling will result in overprediction of cost for small units



GENERIC ULNB TECHNOLOGY (EPRI (2002)

Assumptions 

Existing LNB/FGR

Current NOx = ~0.15lb/Mbtu (125ppm) 

ULNB capability NOx =0.06lb/Mbtu (~50ppm)

ULNB cost 

TPC $30 $/KW

FOM 0.3 $/kw-yr

VOM 0.02 $/MWhr

Variable Designation Units Value

Unique ID 126_1 126_2

Plant Sundt Sundt

Unit 1 2

Unit Size A MW 108.8 108.8

Gross Heat Rate C Btu/kwhr 11289 11020

NOx Rate D lb/Mmbtu 0.155 0.164

CF J % 9.00% 10.00%

Heat Input I Btu/hr 1.23E+09 1.20E+09

Retrofit Factor B 1 1

NOx Removal Eff K % 61% 63%

NOx Removed M lb/hr 1.17E+02 1.25E+02

Aux Power Cost T $/kwh 0.06 0.06

Steam Cost U $/Klb 4 4

Operating Labor Rate V $/hr 60 60

TPC ($) = $3,264,000 $3,264,000

TPC ($/kw) = $30 $30

Fixed O&M Cost

FOM ($/kw-yr) = 0.30 0.30

Variable O&M Cost

VOM ($/MWhr) = 0.02 0.02
CR = 9.44% 9.44%

Property Taxes and Insurance 1.20% 1.20%

Total Charge Rate 10.64% 10.64%

Cost of control - $/Ton

CF 9% 10%

Control Efficiency 61% 63%

Uncontrolled Rate

NOx Rate (lb/hr) 190 197

NOx Rate (lb/MMBtu) 0.155 0.164

NOx (TPY) 75 86

Controlled Rate

NOx Rate (lb/hr) 74 72

NOx Rate (lb/MMBtu) 0.06 0.06

NOx (TPY) 29 32

Tons/Year Removed 46 55

Annualized capital cost $347,267 $347,267

Fixed O&M $32,640 $32,640

Variable O&M $1,716 $1,906

Total Cost/year $381,622 $381,813

$/Ton $8,297 $6,991
same as LNC2

same as LNC2

Calculation

126_3

Sundt

3

113.6 user input

11319 user input

0.16 user input

16.00% user input

1.29E+09 A*C*1000

1 1 = typical retrofit

63%

1.29E+02 D*I/10^6*K

0.06

4

60 Total Labor Cost

$3,408,000 Total project cost

$30

0.30 Total Fixed O&M Cost

0.02 Total Variable O&M Cost
9.44%

1.20%

10.64%

16%

63%

206

0.16

144

(lb/Mbtu*Heat Input)/1000000

77

0.06 Lb/hr*8760*CF/2000

54

90

TPC*CR+(FOM*MW)+VOM(MW*8760)*CF

$362,587

$34,080

$3,184

$399,852

$4,437
EPRI TR-108181, “Retrofit NOx Control Guidelines for Gas- and Oil-Fired Boilers-Version 

[1] EPRI Technical report 1004126, “Assessment of Advanced Low-NOx Burners for Gas-F

s- and Oil-Fired Boilers-Version 22.0, June 1997

ced Low-NOx Burners for Gas-Fired Applications”, November 2002
Cholla 1

SNCR SCR

CF 86% 86%

Control Efficiency 30% 77%

Uncontrolled Rate

NOx Rate (lb/hr) 274 274

NOx Rate (lb/MMBtu) 0.22 0.22

NOx (TPY) 1032 1032

Controlled Rate

NOx Rate (lb/hr) 192 62

NOx Rate (lb/MMBtu) 0.15 0.05

NOx (TPY) 723 235

Tons/Year Removed 310 798

Total Cost/year $1,160,599 $4,237,867

$/Ton $3,748 $5,313

Incremental Rate $3,748 $6,307

Report Tables

Control Option

Emission 

Reduction

(lb/MMBtu) (lb/hr) (tpy) (tpy)

Baseline (LNB+OFA) 0.22 274 1,032 --

SNCR 0.15 192 723 310

SCR 0.05 62 235 798

Control Option Total Capital Cost

Annualized 

Capital Cost

Annual 

O&M Costs

Total Annual 

Cost

($) ($) ($) ($) Ave

Baseline (LNB+OFA) -- -- -- -- --

SNCR $2,272,000 $241,725 $918,875 $1,160,599 $3,748

SCR $26,437,190 $2,812,730 $1,425,137 $4,237,867 $5,313

NOX Emissions

Cost effectiveness 

($/ton)
Incr

--

--

$6,307

Cost effectiveness 

($/ton)
Sundt 1 Sundt 2

SNCR ULNB SCR SNCR

CF 9% 9% 9% CF 10%

Control Efficiency 20% 61% 80% Control Efficiency 20%

Uncontrolled Rate Uncontrolled Rate

NOx Rate (lb/hr) 190 190 190 NOx Rate (lb/hr) 197

NOx Rate (lb/MMBtu) 0.155 0.155 0.155 NOx Rate (lb/MMBtu) 0.164

NOx (TPY) 75 75 75 NOx (TPY) 86

Controlled Rate Controlled Rate

NOx Rate (lb/hr) 152 74 38 NOx Rate (lb/hr) 157

NOx Rate (lb/MMBtu) 0.12 0.06 0.03 NOx Rate (lb/MMBtu) 0.13

NOx (TPY) 60 29 15 NOx (TPY) 69

Tons/Year Removed 15 46 60 Tons/Year Removed 17

Total Cost/year $357,311 $381,622 $1,230,047 Total Cost/year $363,382

$/Ton $23,806 $8,297 $20,488 $/Ton $21,096

$/ton Incremental $785 $60,425 $/ton Incremental

Report Tables

Control Option

Emission 

Reduction

(lb/MMBtu) (lb/hr) (tpy) (tpy)

Sundt Unit 1

Baseline 0.16 190 75 --

SNCR 0.12 152 60 15

ULNB 0.06 74 29 46

SCR 0.03 38 15 60

Sundt Unit 2

Baseline 0.16 197 86 --

SNCR 0.13 157 69 17

ULNB 0.06 72 32 55

SCR 0.03 39 17 69

Sundt Unit 3

Baseline 0.16 206 144 --

SNCR 0.13 165 115 29

ULNB 0.06 77 54 90

SCR 0.03 41 29 115

NOX Emissions
Sundt 3

ULNB SCR SNCR ULNB SCR

10% 10% CF 16% 16% 16%

63% 80% Control Efficiency 20% 63% 80%

Uncontrolled Rate

197 197 NOx Rate (lb/hr) 206 206 206

0.164 0.164 NOx Rate (lb/MMBtu) 0.16 0.16 0.16

86 86 NOx (TPY) 144 144 144

Controlled Rate

72 39 NOx Rate (lb/hr) 165 77 41

0.06 0.03 NOx Rate (lb/MMBtu) 0.13 0.06 0.03

32 17 NOx (TPY) 115 54 29

55 69 Tons/Year Removed 29 90 115

$381,813 $1,231,190 Total Cost/year $406,788 $399,852 $1,273,573

$6,991 $17,869 $/Ton $14,107 $4,437 $11,042

$493 $59,463 $/ton Incremental -$113 $34,629

Control Option

Total Capital 

Cost

Annualized 

Capital Cost

Annual 

O&M Costs

($) ($) ($)

Sundt Unit 1

Baseline (LNB+OFA) -- -- --

SNCR $2,176,000 $231,511 $125,800

ULNB $3,264,000 $347,267 $34,356

SCR $10,097,888 $1,074,344 $155,703

Sundt Unit 2

Baseline (LNB+OFA) -- -- --

SNCR $2,176,000 $231,511 $131,871

ULNB $3,264,000 $347,267 $34,546

SCR $10,097,888 $1,074,344 $156,847

Sundt Unit 3

Baseline (LNB+OFA) -- -- --

SNCR $2,272,000 $241,725 $165,063

ULNB $3,408,000 $362,587 $37,264

SCR $10,385,267 $1,104,919 $168,654
Total Annual 

Cost

($) Ave Incr

-- -- --

$357,311 $23,806 --

$381,622 $8,297 $785

$1,230,047 $20,488 $60,425

-- -- --

$363,382 $21,096 --

$381,813 $6,991 $493

$1,231,190 $17,869 $59,463

-- -- --

$406,788 $14,107 --

$399,852 $4,437 ($113)

$1,273,573 $11,042 $34,629

Cost effectiveness 

($/ton)
Springerville 1 Springerville 2

SNCR SCR

CF 65% 65% CF 

Control Efficiency 30% 72% Control Efficiency

Uncontrolled Rate Uncontrolled Rate

NOx Rate (lb/hr) 769 769 NOx Rate (lb/hr) 

NOx Rate (lb/MMBtu) 0.18 0.18 NOx Rate (lb/MMBtu) 

NOx (TPY) 2189 2189 NOx (TPY) 

Controlled Rate Controlled Rate

NOx Rate (lb/hr) 538 212 NOx Rate (lb/hr) 

NOx Rate (lb/MMBtu) 0.13 0.05 NOx Rate (lb/MMBtu) 

NOx (TPY) 1532 605 NOx (TPY) 

Tons/Year Removed 657 1584 Tons/Year Removed 

Total Cost/year $2,836,973 $10,820,423 Total Cost/year

$/Ton $4,320 $6,829 $/Ton 

$/ton Incremental $8,606 $/ton Incremental

Report Tables

Control Option Emission Reduction

(lb/MMBtu) (lb/hr) (tpy) (tpy)

Springerville 1

Baseline (LNB+OFA) 0.18 769 2,189 --

SNCR 0.127 538 1532 657

SCR 0.05 212 605 1,584

Springerville 2

Baseline (LNB+OFA) 0.19 798 2,448 --

SNCR 0.133 559 1714 734

SCR 0.05 210 644 1,804

Control Option

Total Capital 

Cost

Annualized 

Capital Cost

Annual O&M 

Costs Total Annual Cost

($) ($/yr) ($/yr) ($/yr)

Springerville 1

Baseline (LNB+OFA) -- -- -- --

SNCR $8,496,000 $903,914 $1,933,059 $2,836,973 

SCR $71,796,257 $7,638,614 $3,181,809 $10,820,423 

Springerville 2

Baseline (LNB+OFA) -- -- -- --

NOX Emissions
SNCR $8,496,000 $903,914 $2,141,291 $3,045,205 

SCR $71,402,351 $7,596,705 $3,379,514 $10,976,219 
SNCR SCR

70% 70%

30% 74%

798 798

0.19 0.19

2448 2448

559 210

0.13 0.05

1714 644

734 1804

$3,045,205 $10,976,219

$4,146 $6,085

$7,416

Ave Incr

-- --

$4,320 --

$6,829 $8,606

-- --

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

$6,085 $7,416