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

113_1 Cholla 113 1 113.6 C 0.188 0.118 0.22

Notes: 1 1 1

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

2 Selected as higher of 2008-2010 average or 2011 average unless there was reason to believe that an im

3 This is an estimate from 2008-2011 period based upon reported heat input, capacity and heat rate in N

4 From NEEDS v4.10

Economic Assumptions: 

Capital Recovery Factor 9.44%

Interest Rate 7.00%

Period (yrs) 20

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

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

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

2008-2011

2011 SO2 model NOx model SO2 Capac. Fctr Heat Rate 

(Btu/kwh)

Heat Duty 

(MMBtu/hr) Burner Controls

0.202 0.22 0.202 86% 10964 1,246 T LNC2

1 2 2 3 4

n Air Markets Division Web Site

re was reason to believe that an implemented change in equipment had reduced emissions for 2011

t input, capacity and heat rate in NEEDS v4.10

cumentationpage 8-11

cumentationpage 8-11

2011 Reported Rates modelled rate
Printed 7/17/2013

APS Cholla 1 - SO2 Control Options

Unit Control Option Ctrl Eff Total Capital Cost Total Annual Cost

(lb/MMBtu) (lb/hr) (tpy) (%) Ave Incr

Cholla 1 Uncontrolled 2.40 2989 11,260 -- 2 -- -- -- --

Wet lime FGD (existing) 0.202 252 948 92% 1 -- -- -- --

Wet Lime FGD (upgrades) 0.150 187 704 94% 3 $11,360,000 $1,274,328 4 $5,223 --

WFGD (new) 0.06 75 281 98% $80,473,547 $13,389,653 $20,098 $28,693

1 Based on 2011 annual average CAMD emission data, which corresponds to the first full year under the new Lee Ranch/El Segundo coal contract

2 Based on Lee Ranch/El Segundo NM coal contract specification

3 DFGD upgrade performance is determined based on 95% control efficiency (not by a particular design emission rate)

4 Based on an IPM assumption that FGD minor upgrades would cost $100/kw

SO2 Emission Rate

NotesNotes

Cost effectiveness ($/ton)
Variable Designation Units Value

Unique ID 113_1

Plant Name Cholla

Unit # 1

Unit Size A MW 113.6

Gross Heat Rate C Btu/kwhr 10964

SO2 Rate D lb/Mmbtu 2.40

CF 86.0%

Type of Coal E sub

Coal Factor F 1.05

Retrofit Factor B 1

HR Factor G 1.0964

Heat Input H Btu/hr 1.25E+09

Limestone Rate K ton/hr 2.62

Waste Rate L ton/hr 4.74

Aux. Power M % 1.75

Makeup Water Rate N (1000gph) 10

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

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

BMR ($) = base absorber island cost 18,145,457

BMF ($) = base reagent preparation cost 7,524,169

BMW ($) = base waste handling cost 4,578,593

BMB ($) = BOP cost 31,654,510

BMWW ($) = Waste water treatment

BM ($) = Total base cost 61,902,729

BM ($/KW) = 545

Total Project Cost

A1 = 10% of BM ($) = Eng. and Construction management 6,190,273

A2 = 10% of BM ($) = Labor adjustment 6,190,273

A3 = 10% of BM ($) = Contractor profit/fees 6,190,273
CECC ($) = Cap., Eng. and management 80,473,547

CECC ($/kw) = 708

B1 = 5% of CECC owners cost -

TPC' ($) = TPC w/o AFUDC 80,473,547

TPC' ($/kw) = 708

B2 = 10% of TPC' AFUDC (3yr cycle) -

TPC ($) = Total project cost 80,473,547

TPC ($/kw) = 708

Fixed O&M Cost

FOMO ($/kw-yr) = fixed O&M - additional labor cost 13.2

FOMM ($/kw-yr) = fixed O&M - additional maintenace, mtl and labor cost 8.2

FOMA ($/kw-yr) = fixed O&M - additional administration labor cost 0.49

FOMWW ($/kw-yr) = fixed O&M - wastewater treatment 

FOM ($/kw-yr) = Total Fixed O&M Cost 21.85

Variable O&M Cost

VOMR ($/MWhr) = Variable O&M - limestone 0.35

VOMW ($/MWhr) = Variable O&M - waste disposal 1.25

VOMP ($/MWhr) = Variable O&M - aux. power 1.05

VOMM ($/MWhr) = Variable O&M - makeup water 0.09

VOMWW ($/MWhr) = Variable O&M - water treatment 

VOM ($/MWhr) = Total Variable O&M Cost 2.74

CR = 9.44%

Property Taxes and Insurance 1.20%

Total Charge Rate 10.64%

Annualized Capital Cost 8,561,816

Fixed O&M Cost 2,482,211

Variable O&M Cost 2,345,626

Total Cost/year TPC*CR+(FOM*MW)+VOM(MW*8760)*CF 13,389,653
Calculation

read from Plant Data table

read from Plant Data table

read from Plant Data table

read from Plant Data table

read from Plant Data table

user input

Bit=1; PRB=1.05; Lig=1.07

1 = typical retrofit

C/10000

A*C*1000

17.52*A*D*G/2000

1.811*K

(1.05e^(0.155*D))*F*G

(1.674*D+74.68)*A*F*G/1000

Total Labor Cost

, minor physical/chemical ww treatment and retrofit difficulty)

Source data

http://www.epa.gov/airmarkets/

Source data

http://www.epa.gov/airmarkets/progsregs/epa-ipm/BaseCasev410.html#documentation
Variable Designation Units Value

Unique ID 113_1

Plant Name Cholla

Unit Number 1

Unit Size A MW 113.6

Gross Heat Rate C Btu/kwhr 10964

SO2 Rate D lb/Mmbtu 0.202

CF 0.86

Type of Coal E sub

Coal Factor F 1.05

Retrofit Factor B 1

HR Factor G 1.0964

Heat Input H Btu/hr 1.25E+09

Limestone Rate K ton/hr 0.13

Waste Rate L ton/hr 0.23

Aux. Power M % 1.25

Makeup Water Rate N (1000gph) 10

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

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

BMR ($) = base absorber island cost

BMF ($) = base reagent preparation cost

BMW ($) = base waste handling cost

BMB ($) = BOP cost

BMWW ($) = Waste water treatment

BM ($) = Total base cost

BM ($/KW) = 

Total Project Cost

A1 = 10% of BM ($) = Eng.and Construction management

A2 = 10% of BM ($) = Labor adjustment

A3 = 10% of BM ($) = Contractor profit/fees

CECC ($) = Cap., Eng. and management 
CECC ($/kw) = 

B1 = 5% of CECC owners cost

TPC' ($) = TPC w/o AFUDC

TPC' ($/kw) = 

B2 = 10% of TPC' AFUDC (3yr cycle)

TPC ($) = Total project cost 11,360,000

TPC ($/kw) = 100

Fixed O&M Cost

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

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

FOMA ($/kw-yr) = fixed O&M - additional administration labor cost

FOMWW ($/kw-yr) = fixed O&M - wastewater treatment 

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

Variable O&M Cost

VOMR ($/MWhr) = Variable O&M - limestone 0.02

VOMW ($/MWhr) = Variable O&M - waste disposal 0.06

VOMP ($/MWhr) = Variable O&M - aux. power

VOMM ($/MWhr) = Variable O&M - makeup water

VOMWW ($/MWhr) = Variable O&M - water treatment 

VOM ($/MWhr) = Total Variable O&M Cost 0.08

CR = 9.44%

Property Taxes and Insurance 1.20%

Total Charge Rate 10.64%

CF 86%

Control Efficiency for SO2>3lb/Mbtu=98%; <3 = (SO2-0.06)/SO2 26%

Uncontrolled Rate

SO2 Rate (lb/hr) (lb/Mbtu*Heat Input)/1000000 252

SO2 Rate (lb/MMBtu) 0.202

SO2 (TPY) Lb/hr*8760*CF/2000 948

Controlled Rate

SO2 Rate (lb/hr) 186.8

SO2 Rate (lb/MMBtu) 0.15

SO2 (TPY) 704
Annualized Capital Cost $1,208,624

Fixed O&M Cost $0

Variable O&M Cost $65,704

Total Cost/year TPC*CR+(FOM*MW)+VOM(MW*8760)*CF 1,274,328
Calculation

user input

user input

user input

user input

Bit=1; PRB=1.05; Lig=1.07

1 = typical retrofit

C/10000

A*C*1000

SO2 rate (ca/S=1)

1.811*K

(1.05e^(0.155*D))*F*G

(1.674*D+74.68)*A*F*G/1000

Total Labor Cost

oundations,electrical, minor physical/chemical ww treatment and retrofit difficulty)
$100/kW assumed based upon MATS assumptions

See page #43 of this document: http://www.epa.gov/airmarkets/progsregs/epa-ipm/docs/SuppDoc410MATS.pdf). 


SuppDoc410MATS.pdf).