PWER/BPROS/NXGTKG11/eng/GAS/08.11/CH/7475 © ALSTOM 2011. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties without Alstom’s express written authority is strictly prohibited.

Gas pROducT SOLuTIONS

The pioneer in operational flexibility•Withthegrowthofintermittentrenewableenergyinthegenerationmixofmanymarkets,theroleofcombinedcyclepowerplants(CCPP)ischangingfrombaseloadenergyproductiontoloadbalancingenergyproduction.

•CCPP’swillthereforenotonlyberequiredtoprovidehighreliabilityandperformancebutalsohighoperationalflexibility.

•AlstomwithitslatestKA24product,incorporatingtheNextGenerationGT24gasturbine,continuestobethepioneerinoperationalflexibilityandall-roundCCPPperformancefortoday’sandtomorrow’spowermarketneeds.

The latest KA24/GT24 offers significantly lower cost of electricity by way of improved performance and operational flexibility to meet the needs of today’s dynamic power markets.

The Next Generation Ka24/GT24

Capabilities of the upgraded Ka24*

Proven highly reliable product platform with enhanced features:•Best all-roundplantefficiencyovertheentireloadrange•Lowestpart-loadCO2footprint•Unique lowloadoperationcapability•World-leadingrobustnessforfuelgascompositionvariations

additional operational flexibility features added:•Unique spinningreservecapabilityformorethan450MWin10minutesNEW•On-line switchableoperation modebetweenperformanceandmaintenanceoptimizationofferingupto30%moreoperationtimebetweenscheduledinspections,resultinginhigheravailabilityandlowermaintenancecosts NEW

* gross figures; performance for 2-on-1 configuration

MOreThAN700 MWMOreThAN60 %effiCieNCy

PWER/BPROS/NXGTKG11/eng/GAS/08.11/CH/7475 © ALSTOM 2011. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties without Alstom’s express written authority is strictly prohibited.

Gas pROducT SOLuTIONSThe NexT GeNeraTioN Ka24/GT24

To find out more about the KA24/GT24 Next Generation,

visit our website:www.alstom.com/Ka24

or contact your local Alstom representative.

The Next Generation GT24

This latest GT24 upgradeisbasedonavalidationprogramstartedin2009,andprovendesigntools,bothusedforthedevelopmentofthegasturbine’skeycomponents:COMPrEssOr | higherbase-load&part-loadperformanceThecompressorupgradebringsanincreasedoperationalflexibilitywith4variablevanerows.Thecompressorwasvalidatedinascaledtest-riginordertogainafullcompressormapovertheentirespeedandambientrange.

sEV-BUrNEr | LoweremissionsTheoptimizedsecondcombustorallowsabettermixingofthefuelandmoreefficientcombustionresultinginloweremissions,withwiderrangeoffuelgascompositions.Themodificationsweresuccessfullytestedinahigh-pressuretest-rigunderengineconditions.Theinstrumentationonthetest-rigcontainedmorethan500measurementlocationsfortemperatures,pressures,acoustics,emissionsandflamepositioning.

LP-TUrBiNE | increasedperformanceThelowpressureturbinebringsincreasedefficiencyandperformance.Thetechnologywasvalidatedin2009usingthermalpainttoconfirmeffectivenessoftheturbinecooling.Anotherimportantstephasbeenon-sitevalidationofthelowpressureturbinetechnologyata50hzcombinedcyclepowerplantinCastejon,Spainthathasbeenoperatingsuccessfullyformorethan8000firedhours.as a final step,atechnologytestatAlstom’sTestPowerPlantinSwitzerland,commencedatthebeginningof2011.

serving today’s and tomorrow’s power needs

Continuing evolution of the GT24

The latest upgradeoftheGT24gasturbineisthefourthevolutionarydevelopmentstagesincetheproduct’sinitialintroductionin1996.

since its introductiontothe60hzmarket,Alstom’sGT24sequentialcombustiongasturbinehas,togetherwithits50hzsisterproductGT26,accumulatedmorethan4millionfiredhoursandexceeded50,000startsacrossajointfleetofmorethanonehundredoperationalunits.

*includesOTCcontribution

230 MW40% Efficieny*

1999 2002 2006 2011230 MW*

40% Efficieny*

Multi-shaft Ka24 reference (CCPP) Plant

alstom has designedandengineeredaKA24reference(CCPP)Plant*,includingthefollowingcomponents:

•GT24gasturbines•STf30Csteamturbine•TOPAirgenerators•hL61hrSG•ALSPAcontrolsystem•CarbonCaptureready

*2-on-1CombinedCyclePowerPlant/Triplepressurereheatcycle