GE Energy

New enhancements for the 9FA Gas TurbineDelivering higher performance and greater operational flexibility

2 9FA NEW ENHANCEMENTS

GE was the first to:

introduceF-classtechnologytotheindustry

record100%reliabilityforanF-classturbineoveran108-dayperiodofcontinuousoperation

reach99.4%reliabilityonanF-classturbine

record28millionfiredhoursonanF-classturbineinworldwideservice

shipmorethan1,000F-classturbines

reach55%thermalefficiencyinF-classcommercialcombinedcycleoperation

achieve40%loadwithsingledigitNOxandCOonanF-classturbine

constructanF-classturbineforanIGCC application

GEEnergysF-classgasturbinessetthestandard.

Meetingcustomerneeds

9FA NEW ENHANCEMENTS 3

Customersarecontinuallyseekingwaystodelivergreateroperationalflexibilityandhigherlevelsofperformance,availabilityandreliabilitywhileminimizingoperatingcostsandmeetingincreasinglyrigorousenvironmentalcriteria.ByaccumulatingdatafromtheworldslargestFgasturbinefleetandusingourperformancedatabasefromGEsmonitoringanddiagnosticcenter,GEengineersarecontinuallyfindingnewwaystoprovideenhancedperformanceandoperationalflexibilityfortodayandtomorrow.

Improved PerformanceGEEnergyhasengineeredaCoolingOptimizationPackage

thatisnowavailableasaretrofitpackagefor9FA.03models

andasanoptionalpackageonallnew9FAs.Providing

improvedheatrateandoutput,thispackagemaintainsthe

9FAsunmatchedlevelsofreliabilityandavailability.Benefits

oftheCoolingOptimizationPackagetranslateintolower

operatingcostsandimprovedrevenuesfor9FAusersinboth

simple-cycleandcombined-cycleoperation.

TheCoolingOptimizationPackageincorporates

GEsadvancedtechnologywhichisbasedonakeen

understandingofthephysicsoftheentire9FAgasturbine

coolingsystem.GEengineersfromaroundtheworldfocused

ontheturbinesoperationalenvironment,whichincludes

ambientconditions,loadrangesandstartsequencing,to

developthisnewpackage.Thepackageofferscustomers

improvedoutputandefficiencybymoreeffectivelymanaging

thetemperatureandvolumeofcoolingairflow,minimizing

pressuredropsanddiminishingtheeffectofturbine

clearances.

ReducedEmissionsEconomicandregulatoryrequirementsareplacinggreater

pressureontheoperationofgasturbines.Higherfuelprices

aredrivingagreatercyclicoperationandincreasingemission

requirementsarepressuringtheamountoftimeaturbine

mayoperate.

Sinceitsfirstinstallationin2006theDLN2.6+Combustion

SystemfromGEEnergyhasprovidedcustomersincreased

operationalflexibilityatareducedcostofoperation.This

enhancedsystembuildsupondecadesofGEcombustion

Advancingtechnologyofferingadditionalcustomervalue

technologyleadership.Withmorethan28millionF-class

hoursofsuccessfulDLNoperationandoverfifteenmillion

hoursatorbelow9ppmNOx,GEhastheexperience

andtechnologyleadershiptohelpmeetcustomer

emissionobjectives.GEsDLN2.6+CombustionSystemis

ecomaginationcertifiedandisenabledthroughGEsMark*

VIecontrolplatform.

TheDLN2.6+CombustionSystemoffersthefollowing

customerbenefitsandfeatures.

Lowergasturbineemissionscapableof20mg/Nm3 for

both NOx(@15%O2) and CO

Improvedturndowncapabilitydownto35%offullload

lowersfuelcostsandreducescyclingrequirements

duringoff-peakhours,resultinginfewerstartsandfaster

dispatchcapabilityunitsremainonlineandfullload

capacitycanbereachedmorequickly

Enhancedfuelflexibilityforvaryingfuelcompositions

IncreasedrevenuepotentialfromdevelopingNOx credit

tradingmarkets

Improvedsystemavailabilitythrough24,000hourextended

combustioninspectioninterval

TheDLN2.6+CombustionSystemcanbeinstalledata

combustion,hotgaspathormajorinspection.Continuous

dynamicsmonitoringandremoteDLNtuningareavailable

asanadditionalpackagebenefit/feature.Thissystemisalso

availableasanoptiononnewunits.

IncreasedOperationalFlexibilityPowergenerationindustrychangesaredrivingtheneed

formoreoperationalflexibility.Varyingbusinessmodel

operationalprofilesaretransitioningfromtraditional

baseloadoperationtomid/cyclic-operation,withnearly50%

ofoperatinghours

9FA NEW ENHANCEMENTS 5

OpFlexExtendedTurndownprovidinglowemissionoperationalflexibility

TheOpFlexExtendedTurndownPackageextendsthe

operatingrangeatwhichemissionslevelscanbemaintained

atlowerloadlevelsbyincreasinggasturbineturndown

capability.Byreducingtheminimumturndownlevel,

operatorsareabletoreducetheamountoffuelconsumed

duringoff-peakhoursandavoidshutdown/start-upcosts.

Thepackagealsominimizesmaintenancerequirements

associatedwithshutdownsandallowsthecustomerto

respondtoshortdemandsforelectricity.

Benefits

Reducedfuelconsumptiontoremainon-lineduringoff-

peakhoursduetolowerturndownlevel

Increasedrevenueresultingfromimproveddispatch

prioritybystayingonlineandeliminatingstartupsand

shutdowns

Lowergreenhousegasemissionsduetoreducedfuel

consumption

Increasedpotentialofspinningreservecredits

Minimizedmaintenanceassociatedwithcyclicoperation

OpFlexAutoTunereal-timetuningandboundarycontrolforgreaterflexibility

Asfuelavailabilityandvariabilitybecomesmore

commonplace,customerswilllooktomoreflexiblesolutions.

OpFlexAutoTune,GEslatestoperationalflexibility

enhancement,minimizestheneedforseasonalcombustor

tuninginordertomaintainemissionscompliance.OpFlex

AutoTunewillprovidecustomerswiththeabilitytooperate

theirunitswithintheircurrentfuelspecificationwithoutthe

needformanualcombustorretuning.Thisenhancement

usesthenext-generationofGEsModelBasedControl.The

newControlSystemprovidesmorestabilizedcombustion

characteristicssocustomerscancapitalizeonawiderange

ofambientconditionsandfuelvariationswithoutanysystem

instabilities,maintenanceimpactsorincreaseinemissions.

Thisenhancementprovidesthefollowingkeybenefits.

Eliminatescombustionretuningduetochangesinambient

conditionsandfuelvariation

Enablescontinuousreliableoperationoftheunitwithupto

+/-7.5%variationinmodifiedWobbeindex

Removesunplannedtuning,combustiondynamicandnon-

compliance NOxandCOevents

Increasesreliabilitythroughimproveddynamicsstability

andfuelmarketleverage

Reducesfuelcostsbyeliminatingmanualtuning

Enhancesturbineperformancebymaintainingfiring

temperaturetarget

Improvesconfidencethatturbineoperationcanbe

maintainedwithinemissionlimits

Increasesfuelsupplyflexibilityleadingtolowernegotiated

fuelprices

Applicability

OpFlexAutoTuneisforGE9FAgasturbineswithDLN2.6+

combustors,MarkVeorVIControlSystemswithCombustion

DynamicsMonitoringSystems.

20 mg/Nm3

Baseload

50% GT Load

40% GT Load 35% GT Load OpFlex*

ExtendedTurndown

30 mg/Nm3

9FA

30 mg/Nm3to

50 mg/Nm3

Baseload

38% GT Load

9FB

6 9FANEWENHANCEMENTS

GEEnergyswiderangeofflexiblepowergeneration

applicationsforthe9FAgasturbineincludecombined-cycle,

cogenerationandsimple-cyclepeakinginbothcyclicand

baseloadoperationusingawiderangeoffuels.

IWPPwaterdesalination

Aluminumenergyforsmelters

Refineriesuseofprocessgasandflaregas

forO&Gupstream

DistrictHeatinguseofCHP(combinedheat&power)

SteeluseofblastgasorCorexgas

PulpandPapermanufacturingprocess

9FAApplicationsPoweringmorethanthegrid

9FA fleet 200+ units sold, 170+ in operation in more than 25 countriesDataasofApril2009

More than 7 million fired hours and 74,000 fleet startsDataasofApril2009

GE is a leader in industrial

application experience

supporting alternate fuel choices and

enabling customer self generation

GT Equipment Reliability (July 07-June 08)

Served 2.3 daysmore per year of

required operation

Available 8 daysmore per year GT Equipment Availability

(July 07-June 08)

%

%

2007

2007

2Q08

2Q08

Systemreliability andavailabilityleadingtheindustry,maximizing customeroperationaltime

Throughanindependentthirdpartydatasource,ORAP*

indicatesthatGEsF-classcontinuestoleadF-technology

gasturbinesinreliabilityandavailability.Thishighreliability

andavailabilityratetranslatestoincreasedoperabilityand

reductioninlife-cyclecostforourcustomers.

Source:ORAP;Allrightsreserved:SPS

9FANEWENHANCEMENTS 7

2009GeneralElectricCompany.Allrightsreserved.

GEA17570(05/09)

Tolearnmoreaboutthisoffering,contactyourGEEnergysalesrepresentativeorvisitwww.ge-energy.com