Utility FGD Design Trends

Carl Weilert & Emily Meyer, Burns & McDonnell

Table of Contents:

1 Introduction

2 Explanation of Notation

3 Table 1: Currently Operating FGD Units in the United States

27 Figure 1: InͲService Year of FGD Units

28 Figure 2: Wet FGD Process Type

29 Figure 3: Design SO2 Removal Efficiency for Wet FGD Units

30 Figure 4: Design SO2 Removal Efficiency for SemiͲDry FGD Units

31 Figure 5: Provision for FGD Bypass as a Percent of the Decade

32 Figure 6: Incorporation of Spare Absorber Modules as a Percent of the Decade

33 Figure 7: Absorber Type Used for the FGD System

34 Figure 8: Absorber Material of Construction for the Wet FGD System
Introduction:

In addition to the three figures in the Power Engineering article, this document contains five additional figures

and a table with information for individual units. The figures seek to highlight design trends over the decades, and

the table displays all the data collected.

The following page has an explanation of notation used in the table. Although most of the codes used in the EIAͲ

860 data remain, some additions have been made. For example, the authors felt that although the EIA data does

not classify dry sorbent injection (DSI) or double contact flow scrubber (DCFS) they each merit their own code.

DSI is a truly [dry\ method of removing SO2 from flue gas and has gained popularity over the past ten years, and

although DCFS can be considered a spray type absorber, it is a unique and emerging technology.

FGD data on the absorber material of construction and the oxidation mode are no longer publically available. The

US Department of Energy (DOE) released a [Utility FGD Survey\ in 1989 with material of construction and

oxidation mode for FGD units. This information was used to complete the survey when possible; however, for the

remaining units the authors had to rely on the vendors of the FGD units. If the absorber material of construction

and oxidation mode was not provided, the authors could not report it.

Footnotes in the table and figures are provided to identify the source of the data or to clarify the way the data is

presented. If the information reported was apparent to be incorrect based on the authors_ personal knowledge of

the FGD fleet, the data was corrected, and these corrections are noted with a subscript [m\.

1/34
Explanation of Notation:

General

FGD Flue Gas Desulfurization

Y Yes

N No

NA Not Applicable

NR Not Reported

Absorber Type

BR Jet Bubbling Reactor

CD Circulating Dry Scrubber

DCFS Double Contact Flow Scrubber

DSI Dry Sorbent Injection

PA Packed

SD Spray Dryer

SP Spray

TR Tray

VE Venturi

Sorbent Type

AF Alkaline fly ash

LA Lime and alkaline fly ash

LF Limestone and alkaline fly ash

LI Lime

LS Limestone

MO Magnesium oxide

SA Soda ash

SC Sodium carbonate

SL Soda liquid

Material of Construction

CO Combination

CS Carbon Steel

FRCS Flakeglass Reinforced Resin

Lined Carbon Steel

FRP Fiberglass Reinforced Plastic

NI Nickel Alloy

RLCS Rubber Lined Carbon Steel

SS Stainless Steel

TL Tile Lined

Unit Manufacturers

AD Allied

AL Alstom

AM American Air Filter

AP Airpol

AV Advatech

BPE Babcock Power Environmental

BW Babcock and Wilcox

CH Chiyoda

FMC FMC

HI Hitachi

HRC Hamon ResearchͲCottrell

KE M W Kellogg

MHI Mitsubishi Heavy Industries

MX Marsulex

SHU SaarbergͲHolter

SI Siemens

OT Other

2/34
Table 1: Currently Operating FGD Units in the United States*

*Note that an explanation explanation of the superscripts superscripts can be found at the end of the table on pages 25 and 26

Facility Namea

Pla

(O

nt Code

RISPL)a FGD IDb Statea Process Typea

Ab

Ty

sorber

pe I

b

A

T

bsorber

ype IIb

Sorbent

Typeb

InͲService

Yearb

Design SO2

Removal

Efficiencyb

A B Brown Generating Station 6137 1 IN Dual Alkali SP SA 1979 85

A B Brown Generating Station 6137 2 IN Dual Alkali SP SA 1986 90

AES Cayuga, LLC 2535 1 NY Wet Limestone SP LS 1995 95

AES Cayuga, LLC 2535 2 NY Wet Limestone SP LS 1995 95

AES Greenidge 2527 6a NY Dry Limee CD LI 2007 90.5

AES Somerset (Kintigh) 6082 1 NY Wet Limestone SP LS 1984 90

AES Westover (Goudey) 2526 13 NY Dry Limee CDe LIe 2008e 98e

Alcoa Allowance Management Inc 6705 1 IN Wet Limestonee SP LS 2008 98

Alcoa Allowance Management Inc 6705 2 IN Wet Limestonee SP LS 2008 98

Alcoa Allowance Management Inc 6705 3 IN Wet Limestonee SP LS 2008 98

Alcoa Allowance Management Inc 6705 4 IN Wet Limestonee SP LS 2008 98

Allen S King 1915 1 MN Dry Lime SD LI 2007 90

Altavista Power Station 10773 1 VA Dry Lime SD LA 1992 92

Altavista Power Station 10773 2 VA Dry Lime SD LA 1992 92

Antelope Valley 6469 FGD1 ND Dry Lime SD LA 1983 81

Antelope Valley 6469 FGD2 ND Dry Lime SD LA 1985 81

Apache Station 160 2 AZ Wet Limestonef TR LS 1979 85

Apache Station 160 3 AZ Wet Limestonef TR LS 1979 85

Arapahoe 465 3 CO Sodium Based DSI

n SC 2003 50

Arapahoe 465 4 CO Sodium Based DSI

n SC 1993 50

Asheville 2706 1 NC Wet Limestone TRm LS 2005 97

Asheville 2706 2 NC Wet Limestone TRm LS 2006 97e

B L England 2378 2 NJ Wet Limestone SP LS 1995 93

Bailly Generating Station 995 78 IN Wet Limestone PA LS 1992 90

Barry 3 5 AL Wet Limestone BR LS 2010 95

Belews Creek 8042 1 NC Wet Limestonee SP LS 2008e 95e

Belews Creek 8042 2 NC Wet Limestonee SP LS 2008e 95e

Big Bend 645 FGD1 FL Wet Limestone TRm LS 1999 95

Big Bend 645 FGD4 FL Wet Limestone SP PA LS 1985 95

Bonanza 7790 1Ͳ1 UT Wet Limestone SP LS 1986 95

3/34
Facility Namea

Pl

(O

ant Code

RISPL)a FGD IDb

Nameplate

Capacityc

Provision for

Bypassb

In

S

corporation of

pare Moduleb Manufacturerb

Material of

Construction

Oxidation

Mode

A B Brown Generating Station 6137 1 265 N N FMC FRCSf NR

A B Brown Generating Station 6137 2 265 N N FMC NR NR

AES Cayuga, LLC 2535 1 155 N N SHU NR Forcede

AES Cayuga, LLC 2535 2 167 N N SHU NR Forcede

AES Greenidge 2527 6a 113 N N BPE CSe NA

AES Somerset (Kintigh) 6082 1 655 Y Y AL RLCSe Forcede

AES Westover (Goudey) 2526 13 75 NR NR BPE CSe NA

Alcoa Allowance Management Inc 6705 1 167 N N BPE SSe Forcede

Alcoa Allowance Management Inc 6705 2 144 N N BPE SSe Forcede

Alcoa Allowance Management Inc 6705 3 144 N N BPE SSe Forcede

Alcoa Allowance Management Inc 6705 4 323 N N BPE SSe NA

Allen S King 1915 1 598 N N AL CSm NA

Altavista Power Station 10773 1 71p N N AL CSm NA

Altavista Power Station 10773 2 N N AL CSm NA

Antelope Valley 6469 FGD1 435 N NR BW CSf NA

Antelope Valley 6469 FGD2 435 N Y BW CSf NA

Apache Station 160 2 204 Y N HRC FRCSf NR

Apache Station 160 3 204 Y N HRC FRCSf NR

Arapahoe 465 3 46 N Y OT NA NA

Arapahoe 465 4 112 N Y OT NA NA

Asheville 2706 1 207 N N BW TLj Forcede

Asheville 2706 2 207 NR NR BW TLj Forcede

B L England 2378 2 163 Y N MX NR NR

Bailly Generating Station 995 78 604 N N MHI NR Forcedn

Barry 3 5 789 Y N CH FRPe Forcede

Belews Creek 8042 1 1080 N N AL SSe Forcede

Belews Creek 8042 2 1080 N N AL SSe Forcede

Big Bend 645 FGD1 891 Y N SI NR Forcedn

Big Bend 645 FGD4 932 Y N HRC NR Forcedn

Bonanza 7790 1Ͳ1 500 Y Y AL SSe Forcede

4/34
Facility Namea

Pla

(O

nt Code

RISPL)a FGD IDb Statea Process Typea

Ab

Ty

sorber

pe I

b

A

T

bsorber

ype IIb

Sorbent

Typeb

InͲService

Yearb

Design SO2

Removal

Efficiencyb

Boswell Energy Center 1893 3 MN Wet Limestonee SPe LSe 2009d 98e

Boswell Energy Center 1893 AQCS2 MN Wet Limestonee SP VE AF 1980 83.2

Bowen 703 1S GA Wet Limestonee BR LS 2010 98

Bowen 703 2S GA Wet Limestonee BR LS 2009 98

Bowen 703 3S GA Wet Limestonee BR LS 2008 98

Bowen 703 4S GA Wet Limestonee BR LS 2008 98

Brandon Shores 602 1 MD Wet Limestone TRe LSe 2009n 95e

Brandon Shores 602 2 MD Wet Limestone TRe LSe 2009n 95e

Brayton Point 1619 1 MA Dry Lime SDe LIe 2008m 90m

Brayton Point 1619 2 MA Dry Lime SDe LIe 2008m 90m

Bruce Mansfield 6094 1 PA Wet Lime VE LI 1976 95

Bruce Mansfield 6094 2 PA Wet Lime VE LI 1977 95

Bruce Mansfield 6094 3 PA Wet Lime SP LI 1980 95

Brunner Island 3140 1 PA Wet Limestonee TRe LSe 2009d 97e

Brunner Island 3140 2 PA Wet Limestonee TRe LSe 2009d 97e

Bull Run 3396 1 TN Wet Limestone DCFSe LS 2008 98

C D McIntosh Jr Power Plant 676 3 FL Wet Limestone SP LS 1982 85

Cane Run 1363 4 KY Wet Lime SP LI 1976 85

Cane Run 1363 5 KY Wet Lime SP LI 1978 85

Cane Run 1363 6 KY Dual Alkalif TR LI 1979 90

Cardinal 2828 1 OH Wet Limestone BR LS 2008 98

Cardinal 2828 2 OH Wet Limestone BR LS 2007 98

Cayuga 1001 1 IN Wet Limestone TRm LS 2008 97

Cayuga 1001 2 IN Wet Limestone TRm LS 2008 97

Centralia 3845 1 WA Wet Limestone SP LS 2002 91

Centralia 3845 2 WA Wet Limestone SP LS 2001 91

Charles R Lowmand 56 1Ͳ2 AL Wet Limestone BRe LS 2007h 98

Charles R Lowman 56 3 AL Wet Limestone SP TR LS 1980 85

Cherokee 469 1 CO Sodium Based DSI

n SC 1998 50

Cherokee 469 2 CO Sodium Based DSI

n SC 2003 50

5/34
Facility Namea

Pl

(O

ant Code

RISPL)a FGD IDb

Nameplate

Capacityc

Provision for

Bypassb

In

S

corporation of

pare Moduleb Manufacturerb

Material of

Constuction

Oxidation

Mode

Boswell Energy Center 1893 3 365 N N HI SSe Forcede

Boswell Energy Center 1893 AQCS2 558 Y Y AL RLCSe NR

Bowen 703 1S 806 Y N CH FRPe Forcede

Bowen 703 2S 789 Y N CH FRPe Forcede

Bowen 703 3S 952 Y N CH FRPe Forcede

Bowen 703 4S 952 Y N CH FRPe Forcede

Brandon Shores 602 1 685 NR NR SI TLj NR

Brandon Shores 602 2 685 NR NR SI TLj NR

Brayton Point 1619 1 241 NR NR SI CSm NA

Brayton Point 1619 2 241 NR NR SI CSm NA

Bruce Mansfield 6094 1 914 N N MX FRCSf Inhibitedo

Bruce Mansfield 6094 2 914 N N MX FRCSf Inhibitedo

Bruce Mansfield 6094 3 914 N Y KE FRCSf Inhibitedo

Brunner Island 3140 1 769 NR NR SI TLj Forcede

Brunner Island 3140 2 790 NR NR SI TLj Forcede

Bull Run 3396 1 950 N N MHI/AV NR NR

C D McIntosh Jr Power Plant 676 3 364 Y N BW FRCSf Naturale

Cane Run 1363 4 163 N N AM COf NR

Cane Run 1363 5 209 N N AL SSf NR

Cane Run 1363 6 272 N N AL SSf NR

Cardinal 2828 1 615 N N CH NR NR

Cardinal 2828 2 615 N N CH NR NR

Cayuga 1001 1 531 N N BW TLj Forcede

Cayuga 1001 2 531 N N BW TLj Forcede

Centralia 3845 1 730 Y N AL SSe Forcede

Centralia 3845 2 730 Y N AL SSe Forcede

Charles R Lowmand 56 1Ͳ2 302 Y N CH NR NR

Charles R Lowman 56 3 236 Y N AL FRCSe NR

Cherokee 469 1 125 N Y OT NA NA

Cherokee 469 2 125 N N OT NA NA

6/34
Facility Namea

Pla

(O

nt Code

RISPL)a FGD IDb Statea Process Typea

Ab

Ty

sorber

pe I

b

A

T

bsorber

ype IIb

Sorbent

Typeb

InͲService

Yearb

Design SO2

Removal

Efficiencyb

Cherokee 469 3 CO Dry Lime SD LA 2002 85

Cherokee 469 4A CO Dry Lime SD LA 2003 85

Chesterfield Power Station 3797 6 VA Wet Limestone TRe LS 2008 97

Cheswick 8226 1 PA Wet Limestonen TRe LSe 2010n 98n

Cholla 113 1 AZ Wet Lime SPl LI 1973l 90

Chollam 113 2 AZ Wet Lime VE LI 1978 90

Cholla 113 3 AZ Wet Lime SPe LIb 2009e 94

Cholla 113 4 AZ Wet Lime SP LI 2008 94

Clover Power Station 7213 1 VA Wet Limestone SP LS 1995 94

Clover Power Station 7213 2 VA Wet Limestone SP LS 1996 94

Coal Creek 6030 1 ND Wet Limee SP LI 1979 95

Coal Creek 6030 2 ND Wet Limee SP LI 1981 95

Coffeen 861 1 IL Wet Limestonee SPe LSe 2009d 99e

Coffeen 861 2 IL Wet Limestonee SPe LSe 2010e 99e

CogentrixͲHopewell 10377 FGD1A VA Dry Lime SD LF 2008 90

CogentrixͲHopewell 10377 FGD1B VA Dry Lime SD LF 2008 90

CogentrixͲHopewell 10377 FGD1C VA Dry Lime SD LF 2008 90

CogentrixͲHopewell 10377 FGD2A VA Dry Lime SD LF 2008 90

CogentrixͲHopewell 10377 FGD2B VA Dry Lime SD LF 2008 90

CogentrixͲHopewell 10377 FGD2C VA Dry Lime SD LF 2008 90

CogentrixͲPortsmouth 10071 FGD1A VA Dry Lime SD LF 2008 90

CogentrixͲPortsmouth 10071 FGD1B VA Dry Lime SD LF 2008 90

CogentrixͲPortsmouth 10071 FGD1C VA Dry Lime SD LF 2008 90

CogentrixͲPortsmouth 10071 FGD2A VA Dry Lime SD LF 2007 90

CogentrixͲPortsmouth 10071 FGD2B VA Dry Lime SD LF 2007 90

CogentrixͲPortsmouth 10071 FGD2C VA Dry Lime SD LF 2007 90

Colemand 1381 C KY Wet Limestonee TR LS 2006 95

Colstrip 6076 1 MT Wet Lime VE LA 1975 58.8

Colstrip 6076 2 MT Wet Lime VE LA 1976 58.8

Colstrip 6076 3 MT Wet Lime VE LA 1984 95

7/34
Facility Namea

Pl

(O

ant Code

RISPL)a FGD IDb

Nameplate

Capacityc

Provision for

Bypassb

In

S

corporation of

pare Moduleb Manufacturerb

Material of

Constuction

Oxidation

Mode

Cherokee 469 3 171 N N BW CSm NA

Cherokee 469 4A 381 N N BW CSm NA

Chesterfield Power Station 3797 6 694 N N SI TLj NR

Cheswick 8226 1 637 NR NR SI SSe Forcedn

Cholla 113 1 114 N N HRC NR NR

Chollam 113 2 289 N Y HRC NR NR

Cholla 113 3 289 NR NR BPE SSe Inhibitede

Cholla 113 4 414 N N BPE SSe Inhibitede

Clover Power Station 7213 1 424 Y Y AL SSe Forcede

Clover Power Station 7213 2 424 Y Y AL SSe Forcede

Coal Creek 6030 1 605 Y N AL SSk Naturalk

Coal Creek 6030 2 605 Y N AL SSk Naturalk

Coffeen 861 1 389 NR NR HI FRCSe Forcede

Coffeen 861 2 617 NR NR HI FRCSe Forcede

CogentrixͲHopewell 10377 FGD1A 57p N N HRC CSm NA

CogentrixͲHopewell 10377 FGD1B N N HRC CSm NA

CogentrixͲHopewell 10377 FGD1C N N HRC CSm NA

CogentrixͲHopewell 10377 FGD2A 57p N N HRC CSm NA

CogentrixͲHopewell 10377 FGD2B N N HRC CSm NA

CogentrixͲHopewell 10377 FGD2C N N HRC CSm NA

CogentrixͲPortsmouth 10071 FGD1A 57p N N HRC CSm NA

CogentrixͲPortsmouth 10071 FGD1B N N HRC CSm NA

CogentrixͲPortsmouth 10071 FGD1C N N HRC CSm NA

CogentrixͲPortsmouth 10071 FGD2A 57p N N HRC CSm NA

CogentrixͲPortsmouth 10071 FGD2B N N HRC CSm NA

CogentrixͲPortsmouth 10071 FGD2C N N HRC CSm NA

Colemand 1381 C 602 Y N SI SSm NR

Colstrip 6076 1 358 N N AL FRCSf NR

Colstrip 6076 2 358 N N AL FRCSf NR

Colstrip 6076 3 778 N Y OT SSm NR

8/34
Facility Namea

Pla

(O

nt Code

RISPL)a FGD IDb Statea Process Typea

Ab

Ty

sorber

pe I

b

A

T

bsorber

ype IIb

Sorbent

Typeb

InͲService

Yearb

Design SO2

Removal

Efficiencyb

Colstrip 6076 4 MT Wet Lime VE LA 1986 95

Comanche (470) 470 1 CO Dry Lime SD LA 2008 94

Comanche (470) 470 2 CO Dry Lime SD LA 2008 94

Comanche (470) 470 3 CO Dry Lime SD LA 2008 94

Conemaugh 3118 1 PA Wet Limestone SP LS 1994 95

Conemaugh 3118 2 PA Wet Limestone SP LS 1995 95

Conesville 2840 4 OH Wet Limestonee BR LS 2009 98

Conesville 2840 5 OH Wet Limef SP LI 1977 89.7

Conesville 2840 6 OH Wet Limef SP LI 1977 89.7

Cope Station 7210 COP1 SC Dry Lime SD LI 1996 95

Coronado Generating Station 6177 FGD1 AZ Wet Limestone SP LS 1979 82.5

Coronado Generating Station 6177 FGD2 AZ Wet Limestone SP LS 1980 82.5

Coyote 8222 FGD1 ND Dry Lime SD LA 1981 70

Craig 6021 C1 CO Wet Limestone SP LS 1980 95

Craig 6021 C2 CO Wet Limestone SP LS 1979 95

Craig 6021 C3 CO Dry Lime SD LI 1984 85

Crist Electric Generating Plant 641 1 FL Wet Limestone BR LS 2009 95

Cromby 3159 1 PA Magnesium Oxide SP MO 1982 95

Cross 130 1 SC Wet Limestone SP LS 1995 90

Cross 130 2 SC Wet Limestone SP LS 1983 81.4

Cross 130 3 SC Wet Limestone SP LS 2007 97

Cross 130 4 SC Wet Limestone SP LS 2008 97

Crystal River 628 4 FL Wet Limestone TRm LSm 2010a 97m

Crystal River 628 5 FL Wet Limestone TRm LSm 2009a 97m

Cumberland 3399 1 TN Wet Limestone SP LS 1995 95

Cumberland 3399 2 TN Wet Limestone SP LS 1995 95

Curtis H. Stanton Energy Center 564 1 FL Wet Limestonee SP LS 1987 90

Curtis H. Stanton Energy Center 564 2 FL Wet Limestonee SP LS 1996 95

D B Wilson 6823 W1 KY Wet Limestone SP LS 1984 90

Dallman 963 31Ͳ32 IL Wet Limestone SPm LS 2001 95

9/34
Facility Namea

Pl

(O

ant Code

RISPL)a FGD IDb

Nameplate

Capacityc

Provision for

Bypassb

In

S

corporation of

pare Moduleb Manufacturerb

Material of

Constuction

Oxidation

Mode

Colstrip 6076 4 778 N Y OT SSm NR

Comanche (470) 470 1 383 N N BW CSm NA

Comanche (470) 470 2 396 N N BW CSm NA

Comanche (470) 470 3 857i N N BW CSm NA

Conemaugh 3118 1 936 N N AL TLj Forcede

Conemaugh 3118 2 936 N N AL TLj Forcede

Conesville 2840 4 842 N N CH NR NR

Conesville 2840 5 444 Y N SI RLCSf NR

Conesville 2840 6 444 Y N SI RLCSf NR

Cope Station 7210 COP1 417 N N AL CSm NA

Coronado Generating Station 6177 FGD1 411 Y Y KE FRCSf NR

Coronado Generating Station 6177 FGD2 411 Y Y KE FRCSf NR

Coyote 8222 FGD1 450 N N AL CSf NA

Craig 6021 C1 446 N Y AL RLCSe NR

Craig 6021 C2 446 N Y AL RLCSe NR

Craig 6021 C3 446 Y Y BW CSm NA

Crist Electric Generating Plant 641 1 1135 Y N CH FRPe Forcede

Cromby 3159 1 188 Y Y AL NR NR

Cross 130 1 591 N Y MX NR Forcedk

Cross 130 2 556 N Y AL RLCSe Forcede

Cross 130 3 591 N N BPE TLj Forcede

Cross 130 4 652 N N BPE TLj Forcede

Crystal River 628 4 739 NR NR BWm TLj Forcedm

Crystal River 628 4 739 NR NR BWm TLj Forcedm

Cumberland 3399 1 1300 N N AL RLCSe Forcede

Cumberland 3399 2 1300 N N AL RLCSe Forcede

Curtis H. Stanton Energy Center 564 1 465 Y Y AL RLCSe Forcede

Curtis H. Stanton Energy Center 564 2 465 Y Y AL RLCSe Forcede

D B Wilson 6823 W1 566 N Y KE TLm NR

Dallman 963 31Ͳ32 180 Y N OT SSm NR

10/34
Facility Namea

Pla

(O

nt Code

RISPL)a FGD IDb Statea Process Typea

Ab

Ty

sorber

pe I

b

A

T

bsorber

ype IIb

Sorbent

Typeb

InͲService

Yearb

Design SO2

Removal

Efficiencyb

Dallman 963 33 IL Wet Limestone TRm SP LS 1980 95

Dallman 963 41 IL Wet Limestone TRe LS 2009 98

Dave Johnston 4158 SC44 WY Other VE LI 1972 60f

Deerhaven 663 2 FL Dry Lime CDe LIe 2009e 97e

Dolet Hills Power Station 51 1 LA Wet Limestone SP LS 1986 76

Duck Creek 6016 1 IL Wet Limestonee SPe LSe 2009e 99e

E W Brown 1355 1Ͳ3 KY Wet Limestonee SPe LSe 2010e 98.5e

East Bend 6018 2 KY Wet Lime TRm LI 1981 99

Eddystone Generating Station 3161 1 PA Magnesium Oxide SP MO 1982 92

Eddystone Generating Station 3161 2 PA Magnesium Oxide SP MO 1982 92

Elm Road Generating Station 56068 1 WI Wet Limestonee SP LS 2009 98e

Elmer Smith 1374 FGD KY Wet Limestone SP LS 1994 96

Elmer Smith 1374 FGD KY Wet Limestone SP LS 1994 96

Elrama 3098 SCRB PA Wet Lime VE LI 1976 83

Endicott Generating 4259 1 MI Wet Limestonee SP LS 1983 90

Escalante 87 1 NM Wet Limestone SP LS 1984 95

F B Culley Generating Stationd 1012 2Ͳ3 IN Wet Limestone SP LS 1995 95

Fort Martin Power Stationd 3943 1 WV Wet Limestone SPn LSe 2009e 98e

Fort Martin Power Stationd 3943 2 WV Wet Limestone SPn LSe 2009e 98e

Four Corners Steam Elec Station 2442 1 NM Wet Lime VE LIn 1972 94

Four Corners Steam Elec Station 2442 2 NM Wet Lime VE LIn 1972 94

Four Corners Steam Elec Station 2442 3 NM Wet Lime VE LIn 1972 92

Four Corners Steam Elec Station 2442 4 NM Wet Lime TR LIe 1985 92

Four Corners Steam Elec Station 2442 5 NM Wet Lime TR LIe 1985 92

G G Allen 2718 1 NC Wet Limestone SP LS 2009d 95e

G G Allen 2718 2 NC Wet Limestone SP LS 2009d 95e

Gen J M Gavin 8102 1 OH Wet Lime TRm LI 1994 95

Gen J M Gavin 8102 2 OH Wet Lime TRm LI 1995 95

Genoa 4143 E3 WI Dry Lime SD LA 2009d 94.9

Ghent 1356 1 KY Wet Limestone SP LS 1994 93

11/34
Facility Namea

Pl

(O

ant Code

RISPL)a FGD IDb

Nameplate

Capacityc

Provision for

Bypassb

In

S

corporation of

pare Moduleb Manufacturerb

Material of

Constuction

Oxidation

Mode

Dallman 963 33 207 N N HRC SSf Forcedn

Dallman 963 41 280i N N SI SSm NR

Dave Johnston 4158 SC44 360 N N MX FRCSf NA

Deerhaven 663 2 251 NR NR BPE CSm NA

Dolet Hills Power Station 51 1 721 Y N SI NR NR

Duck Creek 6016 1 441 N N HI FRCSe Forcede

E W Brown 1355 1Ͳ3 669 NR NR BPE TLj Forcede

East Bend 6018 2 669 Y N BW SSf Naturale

Eddystone Generating Station 3161 1 354 Y N AL SSf NR

Eddystone Generating Station 3161 2 354 Y Y AM SSf NR

Elm Road Generating Station 56068 1 615i N N AL SSe Forcede

Elmer Smith 1374 FGD 711 N N SI SSm NR

Elmer Smith 1374 FGD 711 N N SI SSm NR

Elrama 3098 SCRB 100 N Y MX COf NR

Endicott Generating 4259 1 55 Y N BW SSf Forcede

Escalante 87 1 257 N Y AL SSe Forcede

F B Culley Generating Stationd 1012 2Ͳ3 369 N N BPE NIe Forcede

Fort Martin Power Stationd 3943 1 576 NR NR BW NR Forcede

Fort Martin Power Stationd 3943 2 576 NR NR BW NR Forcede

Four Corners Steam Elec Station 2442 1 190 N N MX FRCSf NR

Four Corners Steam Elec Station 2442 2 190 N N MX FRCSf NR

Four Corners Steam Elec Station 2442 3 253 N N MX FRCSf NR

Four Corners Steam Elec Station 2442 4 818 Y Y BW SSf Inhibitede

Four Corners Steam Elec Station 2442 5 818 Y Y BW SSf Inhibitede

G G Allen 2718 1 605 N N AL SSe Forcede

G G Allen 2718 1 550 N N AL SSe Forcede

Gen J M Gavin 8102 1 1300 N Y BW SSm NR

Gen J M Gavin 8102 2 1300 N Y BW SSm Naturale

Genoa 4143 E3 346 N NR AL CSm NA

Ghent 1356 1 557 N Y BPE TLj Forcede

12/34
Facility Namea

Pla

(O

nt Code

RISPL)a FGD IDb Statea Process Typea

Ab

Ty

sorber

pe I

b

A

T

bsorber

ype IIb

Sorbent

Typeb

InͲService

Yearb

Design SO2

Removal

Efficiencyb

Ghent 1356 2 KY Wet Limestone SP LS 2009 93

Ghent 1356 3 KY Wet Limestone SP LS 2007 98.5

Ghent 1356 4 KY Wet Limestone SP LS 2008 98.5

Gibson 6113 1 IN Wet Limestone TRm LS 2007 97

Gibson 6113 2 IN Wet Limestone TRm LS 2007 97

Gibson 6113 3 IN Wet Limestone TRm LS 2006 97

Gibson 6113 4 IN Wet Limestone TRm LS 1995 92

Gibson 6113 5 IN Wet Limestone SP LS 1982 95

Gorgas 8 8Ͳ10 AL Wet Limestone DCFSe LS 2007h 95

Grand River Dam Authority 165 2 OK Dry Lime SD LA 1986 85

H L Spurlock 6041 1 KY Wet Limestonee SPe LSe 2009e 96e

H L Spurlock 6041 2 KY Wet Limestonee SPe LSe 2009d 97e

H L Spurlock 6041 3 KY Dry Limee CDm LAm 2005e 85e

H L Spurlock 6041 4 KY Dry Limee CDm LAe 2008e 85e

H W Pirkey Power Plant 7902 1 TX Wet Limestone SPm LS 1985 85

Hamilton Municipal Power Plant 2917 9 OH Dry Lime SD LI 1999 83

Hardin Generating Station 55749 SDAͲ1 MT Dry Lime SD LA 2006 92.3

Harding Street Station (EW Stout) 990 70 IN Wet Limestone DCFSe LS 2007 98.1

Harrison Power Station 3944 1 WV Wet Lime SP LI 1994 98

Harrison Power Station 3944 2 WV Wet Lime SP LI 1994 98

Harrison Power Station 3944 3 WV Wet Lime SP LI 1994 98

Hatfields Ferry Power Station 3179 1 PA Wet Limestone TRe LSe 2009d 98e

Hatfields Ferry Power Station 3179 2 PA Wet Limestone TRe LSe 2009d 98e

Hatfields Ferry Power Station 3179 3 PA Wet Limestone TRe LSe 2009d 98e

Hawthorn 2079 5A MO Dry Lime SD LA 2001 94

Hayden 525 H1 CO Dry Lime SD LA 1998 85

Hayden 525 H2 CO Dry Lime SD LA 1999 85

HMP&L Station 2d 1382 H1 KY Wet Lime TR LI 1995 95

HMP&L Station 2d 1382 H2 KY Wet Lime TR LI 1995 95

Holcomb 108 SDA1 KS Dry Lime SD LA 1983 80

13/34
Facility Namea

Pl

(O

ant Code

RISPL)a FGD IDb

Nameplate

Capacityc

Provision for

Bypassb

In

S

corporation of

pare Moduleb Manufacturerb

Material of

Constuction

Oxidation

Mode

Ghent 1356 2 556 N Y BW NR NR

Ghent 1356 3 557 N N BPE TLj Forcede

Ghent 1356 4 556 N N BPE TLj Forcede

Gibson 6113 1 668 N N BW NR Forcede

Gibson 6113 2 668 N N BW NR Forcede

Gibson 6113 3 668 N N BW NR Forcede

Gibson 6113 4 668 Y N BW NR Inhibitede

Gibson 6113 5 668 Y N KE SSm NR

Gorgas 8 8Ͳ10 1167 Y N MHI/AV TLj Forcede

Grand River Dam Authority 165 2 520 Y Y AL CSf NA

H L Spurlock 6041 1 358 NR NR AL SSe Forcede

H L Spurlock 6041 2 592 Y N AL SSe Forcede

H L Spurlock 6041 3 329 NR NR AL CSm NA

H L Spurlock 6041 4 329.4i NR NR AL CSm NA

H W Pirkey Power Plant 7902 1 721 Y N SI FRCSf NR

Hamilton Municipal Power Plant 2917 9 51 N N AP CSm NA

Hardin Generating Station 55749 SDAͲ1 116 N N HRC CSm NA

Harding Street Station (EW Stout) 990 70 471 Y N MHI/AV NR NR

Harrison Power Station 3944 1 684 Y N MX SSm NR

Harrison Power Station 3944 2 684 Y N MX SSm NR

Harrison Power Station 3944 3 684 Y N MX SSm NR

Hatfields Ferry Power Station 3179 1 576 NR NR BW NR Forcede

Hatfields Ferry Power Station 3179 2 576 NR NR BW NR Forcede

Hatfields Ferry Power Station 3179 3 576 NR NR BW NR Forcede

Hawthorn 2079 5A 594 N N BW CSm NA

Hayden 525 H1 190 N N BW CSm NA

Hayden 525 H2 275 N N BW CSm NA

HMP&L Station 2d 1382 H1 200 Y N SI SSm NR

HMP&L Station 2d 1382 H2 205 Y N SI SSm NR

Holcomb 108 SDA1 349 N N BW CSm NA

14/34
Facility Namea

Pla

(O

nt Code

RISPL)a FGD IDb Statea Process Typea

Ab

Ty

sorber

pe I

b

A

T

bsorber

ype IIb

Sorbent

Typeb

InͲService

Yearb

Design SO2

Removal

Efficiencyb

Homer City 3122 3 PA Wet Limestone SP LS 2001 95

Hopewell Power Station 10771 1 VA Dry Lime SD LA 1992 92

Hopewell Power Station 10771 2 VA Dry Lime SD LA 1992 92

Hunter 6165 1 UT Wet Lime SP LI 1978 80

Hunter 6165 2 UT Wet Lime SP LI 1980 80

Hunter 6165 3 UT Wet Lime SP LIe 1983 90

Huntington 8069 1 UT Wet Lime SP LI 1978 80

Huntington 8069 2 UT Wet Lime SP LI 2006 95.6e

Iatan 6065 2 MO Wet Limestonee SPe LSe 2008e 98

Intermountain 6481 1CCC UT Wet Limestone SP LS 1986 90

Intermountain 6481 2CCC UT Wet Limestone SP LS 1987 90

J B Sims 1825 3 MI Wet Lime TR SP LI 1983 90

J K Spruce 7097 FGD1 TX Wet Limestone SP LS 1992 70

J M Stuart 2850 1 OH Wet Limestonee BR LS 2008 97

J M Stuart 2850 2 OH Wet Limestonee BR LS 2008 97

J M Stuart 2850 3 OH Wet Limestonee BR LS 2008 97

J M Stuart 2850 4 OH Wet Limestonee BR LS 2008 97

James H Miller Jr 6002 2 AL Wet Limestone DCFSe LS 2010 95

James H Miller Jr 6002 3 AL Wet Limestone DCFSe LS 2009 95

James H Miller Jr 6002 4 AL Wet Limestone DCFSe LS 2010 95

Jeffrey Energy Center 6068 1 KS Wet Limestone SP LS 2009 98

Jeffrey Energy Center 6068 2 KS Wet Limestone SP LS 2009d 98

Jeffrey Energy Center 6068 3 KS Wet Limestone SP LS 2009 98

Jim Bridger 8066 SC71 WY Wet Sodium Based TR SL 1990 86.4

Jim Bridger 8066 SC72 WY Wet Sodium Based TR SL 1986 86.4

Jim Bridger 8066 SC73 WY Wet Sodium Based TR SL 1988 86.4

Jim Bridger 8066 SC74 WY Wet Sodium Basede TR SL 1979 91

John E Amos 3935 3 WV Wet Limestone TR LS 2009 98

Keystone 3136 FGD1 PA Wet Limestonee TRe LS 2009 98

Keystone 3136 FGD2 PA Wet Limestonee TRe LS 2009 98

15/34
Facility Namea

Pl

(O

ant Code

RISPL)a FGD IDb

Nameplate

Capacityc

Provision for

Bypassb

In

S

corporation of

pare Moduleb Manufacturerb

Material of

Constuction

Oxidation

Mode

Homer City 3122 3 692 N N AL COe Forcede

Hopewell Power Station 10771 1 71p N N AL CSm NA

Hopewell Power Station 10771 2 N N AL CSm NA

Hunter 6165 1 488 N N MX FRCSf NR

Hunter 6165 2 488 N N MX FRCSf NR

Hunter 6165 3 496 N N MX NR NR

Huntington 8069 1 498 Y Y MX FRCSf Forcedk

Huntington 8069 2 498 Y Y BPE SSe NR

Iatan 6065 2 726 N NR AL SSe Forcede

Intermountain 6481 1CCC 820 N N MX RLCSf NR

Intermountain 6481 2CCC 820 N Y MX NR NR

J B Sims 1825 3 80 N Y BW SSf Forcede

J K Spruce 7097 FGD1 566 N Y AL SSe Forcede

J M Stuart 2850 1 610 Y N CH NR NR

J M Stuart 2850 2 610 Y N CH NR NR

J M Stuart 2850 3 610 Y N CH NR NR

J M Stuart 2850 4 610 Y N CH NR NR

James H Miller Jr 6002 2 706 Y N MHI/AV TLj Forcede

James H Miller Jr 6002 3 706 Y N MHI/AV TLj Forcede

James H Miller Jr 6002 4 706 Y N MHI/AV TLj Forcede

Jeffrey Energy Center 6068 1 720 Y N AL SSe NR

Jeffrey Energy Center 6068 2 720 Y N AL SSe NR

Jeffrey Energy Center 6068 3 720 Y N AL SSe NR

Jim Bridger 8066 SC71 578 Y N BW NR Forcede

Jim Bridger 8066 SC72 578 Y N BW SSf Forcede

Jim Bridger 8066 SC73 578 Y N BW NR Forcede

Jim Bridger 8066 SC74 584 Y N SI RLCSf NR

John E Amos 3935 3 1300 N N BW NR Forcede

Keystone 3136 FGD1 936 N N SI SSe NR

Keystone 3136 FGD2 936 N N SI SSe NR

16/34
Facility Namea

Pla

(O

nt Code

RISPL)a FGD IDb Statea Process Typea

Ab

Ty

sorber

pe I

b

A

T

bsorber

ype IIb

Sorbent

Typeb

InͲService

Yearb

Design SO2

Removal

Efficiencyb

Killen Station 6031 2 OH Wet Limestonee BR LS 2007 97

La Cygne 1241 1 KS Wet Limestone TRm LS 1973 80

Laramie River 6204 1 WY Wet Limestone SP LS 1980 90

Laramie River 6204 2 WY Wet Limestone SP LS 1981 90

Laramie River 6204 3 WY Dry Lime SD LA 1984 85

Lawrence Energy Center 1250 4N &4S KS Wet Limestone VE SP LS 1969 73

Lawrence Energy Center 1250 5 KS Wet Limestone VE SP LS 1971 52

Lewis & Clark 6089 1 MT Wet Lime SP LA 1975 81

Limestone 298 FGD1 TX Wet Limestone SP LS 1985 90

Limestone 298 FGD2 TX Wet Limestone SP LS 1986 90

Louisa 6664 1 IA Dry Lime SD LA 2007 90

Marion 976 4 IL Wet Limestone TRm LS 1979 89.4

Marshall 2727 1Ͳ2 NC Wet Limestonee SP LS 2007 95e

Marshall 2727 3 NC Wet Limestonee SP LS 2007 95e

Marshall 2727 4 NC Wet Limestonee SP LS 2006 95e

Martin Lake 6146 1 TX Wet Limestone TRm LS 1977 95

Martin Lake 6146 2 TX Wet Limestone TRm LS 1978 95

Martin Lake 6146 3 TX Wet Limestone TRm LS 1979 95

Mecklenburg Power Station 52007 FGD1 VA Dry Lime SDe LA 1992 92

Mecklenburg Power Station 52007 FGD2 VA Dry Lime SDe LA 1992 92

Merom 6213 1FGD IN Wet Limestone PAm LS 1983 90

Merom 6213 2FGD IN Wet Limestone PAm LS 1982 90

Miami Fort Generating Station 2832 7 OH Wet Limestone TRm LS 2007 97

Miami Fort Generating Station 2832 8 OH Wet Limestone TRm LS 2007 97

Mill Creek 1364 1 KY Wet Limestone SP LS 1981 90

Mill Creek 1364 2 KY Wet Limestone SP LS 1980 90

Mill Creek 1364 3 KY Wet Limestone SP LS 1985 90

Mill Creek 1364 4 KY Wet Limestone SP LS 1982 90

Milton R Young 2823 FGD2 ND Wet Limem SP LA 1988e 78.9

Mirant Morgantown 1573 1 MD Wet Limestonee SP LS 2009 98

17/34
Facility Namea

Pl

(O

ant Code

RISPL)a FGD IDb

Nameplate

Capacityc

Provision for

Bypassb

In

S

corporation of

pare Moduleb Manufacturerb

Material of

Constuction

Oxidation

Mode

Killen Station 6031 2 661 N N CH NR NR

La Cygne 1241 1 893 Y N BW SSf Naturale

Laramie River 6204 1 570 Y Y HRC SSf NR

Laramie River 6204 2 570 Y Y HRC SSf NR

Laramie River 6204 3 570 N Y BW CSf NA

Lawrence Energy Center 1250 4N &4S 114 N N AL SSe NR

Lawrence Energy Center 1250 5 403 N N AL SSe NR

Lewis & Clark 6089 1 50 N N HRC NR NR

Limestone 298 FGD1 893 Y Y AL NIe Forcede

Limestone 298 FGD2 957 Y Y AL NIe Forcede

Louisa 6664 1 812 Y N AL CSm NA

Marion 976 4 173 N N BW FRCSf Naturale

Marshall 2727 1Ͳ2 700 N N AL SSe Forcede

Marshall 2727 3 648 N N AL SSe Forcede

Marshall 2727 4 648 N N AL SSe Forcede

Martin Lake 6146 1 793 Y N HRC FRCSf NR

Martin Lake 6146 2 793 Y N HRC FRCSf NR

Martin Lake 6146 3 793 Y N HRC FRCSf NR

Mecklenburg Power Station 52007 FGD1 70 N N AL CSm NA

Mecklenburg Power Station 52007 FGD2 70 N N AL CSm NA

Merom 6213 1FGD 540 Y N MHI FRCSm NR

Merom 6213 2FGD 540 Y N MHI FRCSm NR

Miami Fort Generating Station 2832 7 557 N N BW NR Forcede

Miami Fort Generating Station 2832 8 558 N N BW NR Forcede

Mill Creek 1364 1 356 N N AL SSe NR

Mill Creek 1364 2 356 N N AL SSe NR

Mill Creek 1364 3 463 N N AM SSm NR

Mill Creek 1364 4 544 N N AM SSm NR

Milton R Young 2823 FGD2 477 Y N AL TLe Forcede

Mirant Morgantown 1573 1 626 Y N BW NR Forcede

18/34
Facility Namea

Pla

(O

nt Code

RISPL)a FGD IDb Statea Process Typea

Ab

Ty

sorber

pe I

b

A

T

bsorber

ype IIb

Sorbent

Typeb

InͲService

Yearb

Design SO2

Removal

Efficiencyb

Mirant Morgantown 1573 2 MD Wet Limestonee SP LS 2009 98

Mirant Potomac Riverd 3788 1 VA Sodium Basedn DSI

n SCn 2008n 95n

Mirant Potomac Riverd 3788 2 VA Sodium Basedn DSI

n SCn 2008n 95n

Mirant Potomac Riverd 3788 3 VA Sodium Basedn DSI

n SCn 2008n 95n

Mirant Potomac Riverd 3788 4 VA Sodium Basedn DSI

n SCn 2008n 95n

Mirant Potomac Riverd 3788 5 VA Sodium Basedn DSI

n SCn 2008n 95n

Mitchell (WV) 3948 1 WV Wet Limestone TR LS 2007 98

Mitchell (WV) 3948 2 WV Wet Limestone TR LS 2007 98

Mitchell Power Station 3181 33 PA Wet Lime SP LI 1982 95

Monroe 1733 3 MI Wet Limestone TRm LS 2009 97

Monroe 1733 4 MI Wet Limestone TRm LS 2009 97

Monticello 6147 3 TX Wet Limestone SP TR LS 1978 95

Montour 3149 1 PA Wet Limestonee TRe LS 2008 97

Montour 3149 2 PA Wet Limestonee TRe LS 2008 97

Mount Storm Power Station 3954 1 WV Wet Limestone SP LS 2002 95

Mount Storm Power Station 3954 2 WV Wet Limestone SP LS 2002 95

Mount Storm Power Station 3954 3 WV Wet Limestone SP LS 1995 93.5

Mountaineer (1301) 6264 1 WV Wet Limestone SP LS 2007 98

Muscatine 1167 9 IA Wet Limestone SP LS 1983 96

Naughton 4162 3 WY Wet Sodium Basedf TR SAe 1981 70

Navajo Generating Station 4941 1 AZ Wet Limestone SP LS 1999 92

Navajo Generating Station 4941 2 AZ Wet Limestone SP LS 1998 92

Navajo Generating Station 4941 3 AZ Wet Limestone SP LS 1997 92

Nebraska City Station 6096 2 NE Dry Lime SD LI 2009 95

Neil Simpson II 7504 2 WY Dry Lime CDl LIl 1995l 98l

Nilesd 2861 1 OH Wet Limestone SP LS 1995 95e

North Valmy 8224 2 NV Dry Lime SD LI 1985 70

Northside 667 1 FL Dry Lime SDe LF 2002 85

Northside 667 2 FL Dry Lime SDe LF 2002 85

Oak Grove 6180 1 TX Wet Limestone SP PA LS 2009 98

19/34
Facility Namea

Pl

(O

ant Code

RISPL)a FGD IDb

Nameplate

Capacityc

Provision for

Bypassb

In

S

corporation of

pare Moduleb Manufacturerb

Material of

Constuction

Oxidation

Mode

Mirant Morgantown 1573 2 626 Y N BW NR Forcede

Mirant Potomac Riverd 3788 1 92 NR NR NR NA NA

Mirant Potomac Riverd 3788 2 92 NR NR NR NA NA

Mirant Potomac Riverd 3788 3 110 NR NR NR NA NA

Mirant Potomac Riverd 3788 4 110 NR NR NR NA NA

Mirant Potomac Riverd 3788 5 110 NR NR NR NA NA

Mitchell (WV) 3948 1 816 N N BW NR Forcede

Mitchell (WV) 3948 2 816 N N BW NR Forcede

Mitchell Power Station 3181 33 299 N Y MX FRCSf NR

Monroe 1733 3 823 N N BW TLj Forcede

Monroe 1733 4 817 N N BW TLj Forcede

Monticello 6147 3 793 Y N MX FRCSf NR

Montour 3149 1 806 N N SI TLj NR

Montour 3149 2 819 N N SI TLj NR

Mount Storm Power Station 3954 1 570 Y N MX TLj NR

Mount Storm Power Station 3954 2 570 Y N MX TLj NR

Mount Storm Power Station 3954 3 522 Y N MX SSm NR

Mountaineer (1301) 6264 1 1300 N N AL SSe Forcede

Muscatine 1167 9 176 Y Y HRC SSf NR

Naughton 4162 3 326 Y N SI NR NR

Navajo Generating Station 4941 1 803 Y N AL NIe Forcede

Navajo Generating Station 4941 2 803 Y N AL NIe Forcede

Navajo Generating Station 4941 3 803 Y N AL NIe Forcede

Nebraska City Station 6096 2 652 N N AL CSm NA

Neil Simpson II 7504 2 80 N N ADm CSe NA

Nilesd 2861 1 139 Y N AL FRCSe Forcede

North Valmy 8224 2 290 Y N AL CSm NA

Northside 667 1 298 Y N SI CSm NA

Northside 667 2 298 Y N SI CSm NA

Oak Grove 6180 1 801i N N BPE SSe Forcede

20/34
Facility Namea

Pla

(O

nt Code

RISPL)a FGD IDb Statea Process Typea

Ab

Ty

sorber

pe I

b

A

T

bsorber

ype IIb

Sorbent

Typeb

InͲService

Yearb

Design SO2

Removal

Efficiencyb

Oklaunion Power Station 127 1 TX Wet Limestone SP LS 1986 86.8

Paradise 1378 1 KY Wet Limestone SP VEe LS 1983 84.2

Paradise 1378 2 KY Wet Limestone SP VEe LS 1983 84.2

Paradise 1378 3 KY Wet Limestone DCFSe LS 2006 98e

Petersburg 994 1 IN Wet Limestone SP LS 1996 95

Petersburg 994 2 IN Wet Limestone SP LS 1996 95

Petersburg 994 3 IN Wet Limestone TR LS 1977 85

Petersburg 994 4 IN Wet Limestone SP LS 1986 95

Pleasant Prairie 6170 1 WI Wet Limestone TRe LS 2006 95

Pleasant Prairie 6170 2 WI Wet Limestone TRe LS 2007 95

Pleasants Power Station 6004 1 WV Wet Lime TR LI 1979 90

Pleasants Power Station 6004 2 WV Wet Lime TR LI 1980 90

R D Green 6639 G1 KY Wet Lime SP LI 1979 90

R D Green 6639 G2 KY Wet Lime SP LI 1981 90

R D Morrow Senior Generating Plant 6061 1 MS Wet Limestone SP LS 1978 52.7

R D Morrow Senior Generating Plant 6061 2 MS Wet Limestone SP LS 1979 52.7

R M Schahfer Generating Station 6085 17 IN Wet Limestone TRm LS 1983 90

R M Schahfer Generating Station 6085 18 IN Wet Limestone TRm LS 1986 90

Rawhide Energy Station 6761 101 CO Dry Lime SD LA 1984 80

Reid Gardner 2324 1 NV Wet Sodium Basedf VE SC 1974 90.5

Reid Gardner 2324 2 NV Wet Sodium Basedf VE SC 1974 90.5

Reid Gardner 2324 3 NV Wet Sodium Basedf VE SC 1976 90.5

Reid Gardner 2324 4 NV Wet Sodium Basedf SP SC 1983 85

Roxboro 2712 1 NC Wet Limestoneo TRo LS 2008 97e

Roxboro 2712 2 NC Wet Limestoneo TRo LS 2008g 97e

Roxboro 2712 3 NC Wet Limestone TRo LS 2008 97e

Roxboro 2712 4 NC Wet Limestone TRo LS 2008g 97e

Sam Seymour 6179 3 TX Wet Limestone SP LS 1988 90

San Juan 2451 1 NM Wet Limestone TRm LS 1998 90

San Juan 2451 2 NM Wet Limestone TRm LS 1998 90e

21/34
Facility Namea

Pl

(O

ant Code

RISPL)a FGD IDb

Nameplate

Capacityc

Provision for

Bypassb

In

S

corporation of

pare Moduleb Manufacturerb

Material of

Constuction

Oxidation

Mode

Oklaunion Power Station 127 1 720 Y Y MX NR NR

Paradise 1378 1 704 N Y MX SSf NR

Paradise 1378 2 704 N Y MX SSf NR

Paradise 1378 3 1150 Y NR MHI/AV NR NR

Petersburg 994 1 253 Y N MX SSm NR

Petersburg 994 2 471 Y N MX SSm NR

Petersburg 994 3 574 Y N SI RLCSf NR

Petersburg 994 4 574 Y N HRC NR NR

Pleasant Prairie 6170 1 617 N N SI SSe Forcedo

Pleasant Prairie 6170 2 617 N N SI SSe Forcedo

Pleasants Power Station 6004 1 684 N N BW RLCSf Naturale

Pleasants Power Station 6004 2 684 N N BW RLCSf Naturale

R D Green 6639 G1 293 N Y AM FRCSf NR

R D Green 6639 G2 293 Y N AM FRCSf NR

R D Morrow Senior Generating Plant 6061 1 200 Y N RS COf NR

R D Morrow Senior Generating Plant 6061 2 200 Y N RS COf NR

R M Schahfer Generating Station 6085 17 424 N Y FMC NR NR

R M Schahfer Generating Station 6085 18 424 N Y FMC NR NR

Rawhide Energy Station 6761 101 294 Y Y BW CSf NA

Reid Gardner 2324 1 114 Y N AL RLCSf NR

Reid Gardner 2324 2 114 Y N AL RLCSf NR

Reid Gardner 2324 3 114 Y N AL RLCSf NR

Reid Gardner 2324 4 295 Y Y AL NR NR

Roxboro 2712 1 411 NR NR BW NR Forcede

Roxboro 2712 2 657 NR NR BW TLj Forcede

Roxboro 2712 3 745 NR NR BW TLj Forcede

Roxboro 2712 4 745 NR NR BW TLj Forcede

Sam Seymour 6179 3 460 Y Y AL NR NR

San Juan 2451 1 369 N N BW NR Forcede

San Juan 2451 2 369 N N BW NR Forcede

22/34
Facility Namea

Pla

(O

nt Code

RISPL)a FGD IDb Statea Process Typea

Ab

Ty

sorber

pe I

b

A

T

bsorber

ype IIb

Sorbent

Typeb

InͲService

Yearb

Design SO2

Removal

Efficiencyb

San Juan 2451 3 NM Wet Limestone TRm LS 1998 90

San Juan 2451 4 NM Wet Limestone TRm LS 1998 90

San Miguel 6183 SMͲ1 TX Wet Limestone TRm LS 1982 94.1

Sandow 6648 4 TX Wet Limestone SP LS 1981 92

Sandow Station 52071 5A TX Dry Lime CD LS 2009 95.8

Sandow Station 52071 5B TX Dry Lime CD LS 2009 95.8

Seminole (136) 136 1 FL Wet Limestone SP LS 1984 90

Seminole (136) 136 2 FL Wet Limestone SP LS 1984 90

Seward 3130 FDA1 PA Dry Limee CDm LF 2004 95

Seward 3130 FDA2 PA Dry Limee CDe LF 2004 95

Sherburne County 6090 1 MN Wet Limestone SPe AF 1976 50

Sherburne County 6090 2 MN Wet Limestone SP VE AF 1977 50

Sherburne County 6090 3 MN Dry Lime SD LA 1987 72.3

Shiras 1843 3 MI Dry Limem SD LS 1983 80

Southampton Power Station 10774 1 VA Dry Lime SD LA 1991 92

Southampton Power Station 10774 2 VA Dry Lime SD LA 1991 92

Springerville Generating Station 8223 1 AZ Dry Lime SD LA 1985 61.3

Springerville Generating Station 8223 2 AZ Dry Lime SD LA 1990 61.3

Springerville Generating Station 8223 3 AZ Dry Lime SD LI 2006 84.7

Springerville Generating Station 8223 4 AZ Dry Lime SD LI 2009 84.7

St. Johns River Power 207 1 FL Wet Limestonef SP LS 1987 90

St. Johns River Power 207 2 FL Wet Limestonef SP LS 1988 90

Stanton 2824 10 ND Dry Lime SD LI 1982 70

Taconite Harbor Energy Center 10075 FSI1 MN Dry Limem DSI

m LI 2008 65

Taconite Harbor Energy Center 10075 FSI2 MN Dry Limem DSI

m LI 2007 65

Trimble County 6071 1 KY Wet Limestone SP LS 1990 90.7

TS Power Plant 56224 SCB600 NV Dry Lime SD LA 2008 92

Valmont 477 5 CO Dry Lime SD LA 2002 85

W A Parish 3470 FGD8 TX Wet Limestonef SP LS 1982 85

W H Sammis 2866 6 OH Wet Limestonem TRm LSe 2009m 98e

23/34
Facility Namea

Pl

(O

ant Code

RISPL)a FGD IDb

Nameplate

Capacityc

Provision for

Bypassb

In

S

corporation of

pare Moduleb Manufacturerb

Material of

Constuction

Oxidation

Mode

San Juan 2451 3 555 N N BW NR Forcede

San Juan 2451 4 555 N N BW NR Forcede

San Miguel 6183 SMͲ1 410 N N BW SSm Inhibitede

Sandow 6648 4 591 Y N AL SSe NR

Sandow Station 52071 5A 661i,p N N AD CSm NA

Sandow Station 52071 5B N N AD CSm NA

Seminole (136) 136 1 715 N Y AL RLCSe Naturale

Seminole (136) 136 2 715 N Y AL RLCSe Naturale

Seward 3130 FDA1 585p N N AL CSm NA

Seward 3130 FDA2 N N AL CSm NA

Sherburne County 6090 1 765 N Y AL FRCSe NR

Sherburne County 6090 2 765 N Y AL FRCSe NR

Sherburne County 6090 3 900 Y Y BW CSm NA

Shiras 1843 3 44 Y N MX CSm NA

Southampton Power Station 10774 1 71p N N AL CSm NA

Southampton Power Station 10774 2 N N AL CSm NA

Springerville Generating Station 8223 1 425 N N BW CSm NA

Springerville Generating Station 8223 2 425 N N BW CSm NA

Springerville Generating Station 8223 3 450 N Y AL CSm NA

Springerville Generating Station 8223 4 450i N Y AL CSm NA

St. Johns River Power 207 1 679 Y Y HRC FRCSf NR

St. Johns River Power 207 2 679 Y Y HRC NR NR

Stanton 2824 10 190 N N HRC CSm NA

Taconite Harbor Energy Center 10075 FSI1 84 Y NR OT NA NA

Taconite Harbor Energy Center 10075 FSI2 84 Y NR OT NA NA

Trimble County 6071 1 566 Y Y AL SSe Forcede

TS Power Plant 56224 SCB600 242 N N BW CSm NA

Valmont 477 5 192 N N BW CSm NA

W A Parish 3470 FGD8 615 N N MX FRCSf NR

W H Sammis 2866 6 680 NR NR BW NR Forcede

24/34
Facility Namea

Pla

(O

nt Code

RISPL)a FGD IDb Statea Process Typea

Ab

Ty

sorber

pe I

b

A

T

bsorber

ype IIb

Sorbent

Typeb

InͲService

Yearb

Design SO2

Removal

Efficiencyb

W H Sammis 2866 1Ͳ5 OH Wet Limestonem TRm LSe 2010a 98e

W H Sammis 2866 7 OH Wet Limestonem TRm LSe 2010a 98e

W H Zimmer Generating Station 6019 1 OH Wet Lime TRm LI 1991 99

Walter Scott Jr. Energy Center 1082 3 IA Dry Lime SD LA 2009 93.6

Walter Scott Jr. Energy Center 1082 4 IA Dry Lime SD LA 2007 92

Wansley (6052) 6052 1 GA Wet Limestonee BR LS 2008 98

Wansley (6052) 6052 2 GA Wet Limestonee BR LS 2009 98

Weston 4078 4 WI Dry Lime SD LA 2008 90

Widows Creek 50 7 AL Wet Limestone SP LS 1981 83.4

Widows Creek 50 8 AL Wet Limestone DCFSe LS 2003e 96e

Williams 3298 WIL1 SC Wet Limestone SP LS 2009 96

Winyah 6249 1 SC Wet Limestone SP LSe 2007 97

Winyah 6249 2 SC Wet Limestone SP LS 2007 97

Winyah 6249 3 SC Wet Limestone SP LS 1980 90

Winyah 6249 4 SC Wet Limestone SP LS 1981 90.4

Wygen I 55479 3 WY Dry Lime SDm LI 2003 89.9

Wygen II 56319 1 WY Dry Lime SD LA 2008 90.4

Wyodak 6101 SC91 WY Dry Lime SD LI 1986 75.2

Yates 728 Y1FG GA Wet Limestonee BR LS 1992 90

a This column is from the 2010 fEmissionsg section of EPAhs Clean Air Markets Division fData and Mapsg website

b This column is from 2008 EIAͲ860 data Schedules 6ͲG & 6ͲH

c This column is from 2008 EIAͲ860 data "Annual Electric Generator Report" Generator (Existing) File

d 2009 fEmissionsg section of EPAhs Clean Air Markets Division fData and Mapsg website

e Information is from respective vendor either from direct correspondence or from their website/publications

f

DOE "Utility FGD Survey JanuaryͲDecember 1989" Publication Number ORNL/MͲ2347

g 2008 fEmissionsg section of EPAhs Clean Air Markets Division fData and Mapsg website

h 2007 fEmissionsg section of EPAhs Clean Air Markets Division fData and Mapsg website

25/34
Facility Namea

Pl

(O

ant Code

RISPL)a FGD IDb

Nameplate

Capacityc

Provision for

Bypassb

In

S

corporation of

pare Moduleb Manufacturerb

Material of

Constuction

Oxidation

Mode

W H Sammis 2866 1Ͳ5 715 NR NR BW NR Forcede

W H Sammis 2866 7 680 NR NR BW NR Forcede

W H Zimmer Generating Station 6019 1 1426 Y Y BW SSm Forcede

Walter Scott Jr. Energy Center 1082 3 726 N N AL CSm NA

Walter Scott Jr. Energy Center 1082 4 923 N N BW CSm NA

Wansley (6052) 6052 1 952 Y N CH FRPe Forcede

Wansley (6052) 6052 2 952 Y NR CH FRPe Forcede

Weston 4078 4 595 N N BW CSm NA

Widows Creek 50 7 575 Y N AL SSe Forcedo

Widows Creek 50 8 550 Y N MHI/AV SSm Forcedo

Williams 3298 WIL1 633 N N BPE FRCSe Forcede

Winyah 6249 1 315 N N SI NR NR

Winyah 6249 2 315 N N SI NR NR

Winyah 6249 3 315 N N BW RLCSf Naturale

Winyah 6249 4 315 N N AM NR NR

Wygen I 55479 3 88 N N BW CSm NA

Wygen II 56319 1 95 N N BW CSm NA

Wyodak 6101 SC91 362 Y N BW CSm NA

Yates 728 Y1FG 123 Y N CH FRPe Forcede

i

2008 EIAͲ860 data "Annual Electric Generator Report" Generator (Proposed) File

j

Material information from Stebbins Manufacturing Installation List

k Upgrade by BPE according to BPE

l

2005 EIAͲ767 data Schedule 8ͲA & 8ͲB

m Authors' correction based on personal knowledge

n Facility's Utility's website

o EPA's Steam Electric Power Generating Point Source Category: 2007/2008 Detailed Study Report (Online)

p Multiple FGD units are associated with one generator. The value reported is the nameplate capacity for the generator.

26/34
30

40

50

60

Number of Units

Figure 1: InͲService Year of FGD Units1

0

10

20

1969 1971 1973 1975 1977 1979 1981 1983 1985 1987 1989 1991 1993 1995 1997 1999 2001 2003 2005 2007 2009

InͲService Year

1 The year reported is the year in which the FGD system originally cameinͲservice. Unless the authors deemed that modifications were so extensive

that the FGD was essentially a new unit.

27/34
40

108

60

80

100

120

Number of Units

Figure 2: Wet FGD Process Type

Dual Alkali

Wet Sodium Based

Wet Lime

Wet Limestone

2 1 0 0

4 5

0 0

23

11

8

3

25

31

0

20

40

1969 to 1980 1981 to 1990 1991 to 2000 2001 to 2010

Decade

28/34
31

28

83

40

50

60

70

80

90

Number of Units

Figure 3: Design SO2 Removal Efficiency for Wet FGD Units

80 or less

81 to 85

86 to 90

91 to 95

96 to 98+

12

3

1 0

12

8

0 0

15

7

0

15 16

25

28

0

2

6

0

10

20

30

1969 to 1980 1981 to 1990 1991 to 2000 2001 to 2010

Decade

29/34
10

9

20

9

14

10

15

20

25

Number of Units

Figure 4: Design SO2 Removal Efficiency for SemiͲDry FGD Units

80 or less

81 to 85

86 to 90

91 to 95

96 to 98+

0 0 0 0

6

3

000 0 0 0 0

1

2

0

5

1969 to 1980 1981 to 1990 1991 to 2000 2001 to 2010

Decade

30/34
40

59

39 40

50

60

70

80

90

100

t with Provision for Bypass

Figure 5: Provision for FGD Bypass as a Percent of the Decade2

30

0

10

20

30

1969 to 1980 1981 to 1990 1991 to 2000 2001 to 2010

Percent

Decade

2 The percent reported is taken from the total number of units in a decade with bypass information.

31/34
49

40

50

60

70

80

90

100

Incorporation for Spare Modules

Figure 6: Incorporation of Spare Absorber Modules as a Percent of the Decade3

22 20

5

0

10

20

30

1969 to 1980 1981 to 1990 1991 to 2000 2001 to 2010

Percent with I

Decade

3 The percent reported is taken from the total number of units in a decade with spare absorber modules.

32/34
15

17

15

36

15

20

25

30

35

40

Number of Units

Figure 7: Absorber Type Used for the FGD System4

Venturi

Double Contact Flow Scrubber

Circulating Dry Scrubber

Dry Sorbent Injection

Jet Bubbling Reactor

Spray Dryer

2

000 0 0

8

0 0

1

9

0 0

2

9

0 0

1

0

12

0

5

10

1969 to 1980 1981 to 1990 1991 to 2000 2001 to 2010

Decade

4 This figure does not account for the undeniable workhorse of the absorber type, spray towers. This figure more so acts to depict the rise and fall of absorber types

over the decades. Furthermore, tray and packed types are not reported since every tray and packed is also a spray.

33/34
26

13

29

25

16

35

15

20

25

30

35

40

Number of Units

Flakeglass Reinforced Resin Lined Carbon Steel

Rubber Lined Carbon Steel

Nickel Alloy

Fiberglass Reinforced Plastic

Tile Lined

Stainless Steel

Figure 8: Absorber Material of Construction for the Wet FGD System5

8

1

4

13

6

3

0 0

2

4

0 0 0

1

8

0

2

3

9

0

5

10

1969 to 1980 1981 to 1990 1991 to 2000 2001 to 2010

Decade

4 This figure of the material of construction for the absorber system does not represent all the wet FGD units online. As stated in the introduction due to lack of

publically available information for current units, if the vendors did not provide this information it was not reported.

34/34