Note:ESAsummarydataisbasedontheDOElargeplantassessmentsconductedduring2006to2010.ESARecommendationESAAssessmentTypeESAOpportunityNote IACARCCodeImplementationStatusSourceEnergySavingsImplemented(MMBtu/yr)SourceEnergySavingsPercentImplemented(%)EnergyCostSavingsImplemented($)%CostsavingsimplementedFuelType1.3‐ChangeBoilerEfficiency Steam InstallFeed‐waterEconomizers 2.2412 Implemented 25,286 5.8% $265,550 8.0% NaturalGas1.3‐ChangeBoilerEfficiency Steam Boilercurrentlyat79.3%‐toinstallacontinuoustrimunit 2.1233 Implemented 17,000 4.5% $136,000 4.3% NaturalGas1.3‐ChangeBoilerEfficiency Steam Themainplantboilerwasfoundtohave77%efficiency.Therecommendationist2.1212 Implemented 20,000 4.0% $160,000 4.3% NaturalGas1.3‐ChangeBoilerEfficiency Steam ChangeBoilerEfficiency(O2Trim) 2.1233 Implemented 4,987 3.4% $44,000 4.2% NaturalGas1.3‐ChangeBoilerEfficiency Steam Thecapabilitytousenumber6‐fueloilisalreadyinstalledbutisrarelyused.Gene2.1333 Implemented 17,250 3.4% $138,000 4.6% NaturalGas1.3‐ChangeBoilerEfficiency Steam NewBoilerswithEconomizer,O2TrimtoReduceOxygenContentofFlueGasesto2.1224 Implemented 35,100 3.3% $271,000 2.9% NaturalGas1.3‐ChangeBoilerEfficiency Steam ChangeBoilereff.(Burners&Controlmods.)2.1233 Implemented 15,000 2.6% $105,000 2.9% NaturalGas1.3‐ChangeBoilerEfficiency Steam ChangePowerBoilerEfficiency‐ReducestackO2levelsby2% 2.1116 Implemented 94,958 2.4% $245,000 1.1% HeavyFuelOil1.3‐ChangeBoilerEfficiency SteamIncreaseboilerefficiencyto79.6%byreductionofexcessairfrom9.7%to2%.Th2.1233 Implemented 3,285 2.1% $27,500 2.5% NaturalGas1.3‐ChangeBoilerEfficiency Steam Generally,bothboilersareinoperationbecauseoneboilerisnotquitelargeenou2.6221 Implemented 7,760 1.8% $79,000 2.7% NaturalGas1.3‐ChangeBoilerEfficiency Steam Improvethequalityoftheotherfuelusedintheboiler(s)—Noprojectnumber 2.1311 Implemented 170,000 1.8% $179,050 0.5% OtherSolid1.3‐ChangeBoilerEfficiency Steam2.1233 Implemented 2,628 1.8% $21,471 2.0% NaturalGas1.3‐ChangeBoilerEfficiency Steam IncreaseBoilerEfficiency 2.2412 Implemented 11,385 1.7% $98,000 1.9% NaturalGas1.3‐ChangeBoilerEfficiency Steam Boiler2CombustionAirImprovements 2.4323 Implemented 120,000 1.6% $1,200,000 2.8% NaturalGas1.3‐ChangeBoilerEfficiency Steam RepairandRe‐commissiontheEconomizerMountedintheExhaustoftheTherma2.2437 Implemented 19,583 1.5% $235,000 1.7% NaturalGas1.3‐ChangeBoilerEfficiency Steam Installtwocombustionairpre‐heaters. 2.121 Implemented 6,144 1.4% $51,000 1.6% NaturalGas1.3‐ChangeBoilerEfficiency Steam Implementcombustioncontrol2.1213 Implemented 10,870 1.1% $80,000 1.3% NaturalGas1.3‐ChangeBoilerEfficiency Steam Optimizeboileroperationandloadmanagementstrategy 2.6221 Implemented 68,200 1.1% $498,539 1.5% NaturalGas1.3‐ChangeBoilerEfficiency Steam Measuredexcessoxygenwas8.2%.Theinstallationofanoxygentrimsystemone2.1233 Implemented 1,752 1.0% $15,770 1.4% NaturalGas1.3‐ChangeBoilerEfficiency Steam Installautomaticoxygentrimcontrollers 2.1233 Implemented 17,520 1.0% $177,000 1.0% NaturalGas1.3‐ChangeBoilerEfficiency Steam All3boilersareequippedwithstackfeedwatereconomizers.Buttheyarepresent2.121 Implemented 6,775 1.0% $58,005 1.1% NaturalGas1.3‐ChangeBoilerEfficiency Steam2.1222 Implemented 1,927 1.0% $18,017 1.4% NaturalGas1.3‐ChangeBoilerEfficiency Steam ChangeBoilerEfficiency 2.1233 Implemented 14,699 1.0% $162,000 1.4% NaturalGas1.3‐ChangeBoilerEfficiency Steam ChangeBoilerEfficiency(InstallEconomizeronBoiler3) 2.2441 Implemented 9,536 0.9% $64,550 0.8% HeavyFuelOil1.3‐ChangeBoilerEfficiency Steam ChangeBoilerEfficiency–Economizers 2.4232 Implemented 28,851 0.8% $221,000 1.3% NaturalGas1.3‐ChangeBoilerEfficiency Steam Improveboilerefficiency(reduceEA) 2.1233 Implemented 8,879 0.8% $80,000 0.8% HeavyFuelOil1.3‐ChangeBoilerEfficiency Steam Boilertuning.(PickList#3) 2.1233 Implemented 10,908 0.8% $85,000 0.7% HeavyFuelOil1.3‐ChangeBoilerEfficiency Steam Combinethreeboileroperationtotwoboilersoperatingatagreateraverageeffic2.1233 Implemented 4,126 0.7% $42,000 1.0% NaturalGas1.3‐ChangeBoilerEfficiency Steam TheboilerscurrentlymaintaintheHWheatinglooptemperatureat270oF.Thisp2.1233 Implemented 20,000 0.7% $199,997 1.0% NaturalGas1.3‐ChangeBoilerEfficiency Steam Usetheleast‐efficientofthethreeboilerslessoften 2.1211 Implemented 8,640 0.7% $69,000 0.8% NaturalGas1.3‐ChangeBoilerEfficiency Steam ImplementExcessAir(Oxygen)ControlTheBoilers(#1‐4)currentlydonothave2.122 Implemented 37,250 0.6% $148,900 2.6% OtherSolid1.3‐ChangeBoilerEfficiency Steam ChangeBoilerEfficiency(Instrumentation&Controls) 2.1233 Implemented 1,100 0.6% $11,000 0.8% NaturalGas1.3‐ChangeBoilerEfficiency Steam Changeboilerefficiency(PickList#3):Transfersteamloadfrom400psig.boilerto2.1223 Implemented 18,280 0.6% $133,000 1.4% Coal1.3‐ChangeBoilerEfficiency Steam ChangeBoilerEfficiency2.1233 Implemented 2,496 0.6% $23,000 0.7% NaturalGas1.3‐ChangeBoilerEfficiency Steam ChangeBoilerEfficiency‐InstallBoilerEconomizers 2.2412 Implemented 5,151 0.6% $59,780 1.0% NaturalGas1.3‐ChangeBoilerEfficiency Steam NoneofthethreeboilersisequippedwithautomaticO2trim.Recentboilereffici2.121 Implemented 3,504 0.5% $36,000 0.7% NaturalGas1.3‐ChangeBoilerEfficiency Steam Changeboilerefficiency 2.1233 Implemented 38,951 0.5% $109,647 0.5% Coal1.3‐ChangeBoilerEfficiency Steam Tuneboilercontrols 2.1233 Implemented 15,552 0.5% $118,000 0.5% NaturalGas1.3‐ChangeBoilerEfficiency Steam Boilerefficiency–Re‐Calibrateflowmeters&improvecontrolstrategy 2.1233 Implemented 4,083 0.4% $49,036 0.5% Propane1.3‐ChangeBoilerEfficiency Steam ChangeBoilerEfficiency 2.1233 Implemented 55,188 0.4% $561,000 1.4% NaturalGas1.3‐ChangeBoilerEfficiency Steam Currentlytwoboilersareinoperation,onesatisfiestheprocessdemandloadand2.1233 Implemented 1,322 0.4% $9,918 0.4% NaturalGas1.3‐ChangeBoilerEfficiency Steam TunetheboilersespeciallytheCleaverBrooksboiler.TheSuperiorboilerswereob2.1233 Implemented 1,112 0.4% $6,000 0.3% NaturalGas1.3‐ChangeBoilerEfficiency Steam InstallNewEconomizer(fourPackageBoilers) 2.2412 Implemented 29,419 0.4% $200,000 0.4% NaturalGas1.3‐ChangeBoilerEfficiency Steam Boilertuningisnecessarymaintainproperfueltoairratiosacrosstheoperatingbo2.123 Implemented 375 0.3% $3,000 0.3% NaturalGas1.3‐ChangeBoilerEfficiency Steam ChangeBoilerEfficiency(CEBoilerControls) 2.1233 Implemented 20,100 0.3% $151,000 0.4% NaturalGas1.3‐ChangeBoilerEfficiency Steam IncreaseBoilerEfficiencyto85% 2.1233 Implemented 2,826 0.3% $24,975 0.3% NaturalGas1.3‐ChangeBoilerEfficiency Steam ChangeBoilerEfficiency‐Increasecombustionairtemperature 2.1213 Implemented 2,832 0.3% $15,000 0.5% HeavyFuelOil1.3‐ChangeBoilerEfficiency Steam Changeboilerefficiency(HFBO2to2.5%) 2.1233 Implemented 26,992 0.3% $100,114 0.3% Wood1.3‐ChangeBoilerEfficiency Steam ChangeBoilerEfficiency–OperatingPractice 2.1212 Implemented 14,638 0.3% $146,000 0.4% NaturalGas1.3‐ChangeBoilerEfficiency Steam Boilersoperatemoreefficientlyatlowerpressuresduetoimprovedheattransfer.2.1233 Implemented 1,375 0.3% $11,000 0.4% NaturalGasNote:ESAsummarydataisbasedontheDOElargeplantassessmentsconductedduring2006to2010.ESARecommendationESAAssessmentTypeESAOpportunityNote IACARCCodeImplementationStatusSourceEnergySavingsImplemented(MMBtu/yr)SourceEnergySavingsPercentImplemented(%)EnergyCostSavingsImplemented($)%CostsavingsimplementedFuelType1.3‐ChangeBoilerEfficiency Steam ChangeBoilerEfficiency 2.1233 Implemented 6,572 0.3% $67,000 0.4% NaturalGas1.3‐ChangeBoilerEfficiency Steam ChangeBoilerEfficiency–CombustionControls 2.1233 Implemented 12,709 0.3% $127,000 0.3% NaturalGas1.3‐ChangeBoilerEfficiency Steam Aftertuningboilerfurtherimproveefficiencybyaddingparallelcombustioncontro2.1233 Implemented 801 0.3% $4,000 0.2% NaturalGas1.3‐ChangeBoilerEfficiency Steam Allfourboilershaveoxygentrimcontrolssettomaintainapproximately3%excess2.1232 Implemented 5,520 0.2% $42,600 0.3% NaturalGas1.3‐ChangeBoilerEfficiency Steam Improvetheefficiencyofboiler#4. 2.1221 Implemented 8,049 0.2% $66,000 0.3% NaturalGas1.3‐ChangeBoilerEfficiency Steam Basedondiscussions,itappearsthatoneofthemajorreasonsthattwostokerboi2.1224 Implemented 12,600 0.2% $116,000 0.7% Coal1.3‐ChangeBoilerEfficiency Steam Combustionairiscurrentlydrawnfromoutsidethebuilding.Bymodifyingtheduc2.1213 Implemented 7,059 0.2% $60,000 0.3% NaturalGas1.3‐ChangeBoilerEfficiency Steam Presentlytheboilersoperateat20‐25%loadwith6.8%ofO2inthefluegases.An2.2163 Implemented 1,814 0.2% $13,755 0.4% NaturalGas1.3‐ChangeBoilerEfficiency Steam Replace250hpboilerwithsmallerboiler 2.1223 Implemented 677 0.2% $5,600 0.3% NaturalGas1.3‐ChangeBoilerEfficiency Steam ChangeBoilerEfficiency(No.2RecoveryBoiler) 2.1233 Implemented 15,284 0.2% $103,904 0.2% NaturalGas1.3‐ChangeBoilerEfficiency Steam ChangeBoilerEfficiency‐O2%Reduction 2.1233 Implemented 6,525 0.2% $49,980 0.3% NaturalGas1.3‐ChangeBoilerEfficiency Steam Improvecombustionefficiencyonboilers 2.1233 Implemented 1,314 0.2% $15,279 0.1% NaturalGas1.3‐ChangeBoilerEfficiency Steam Allsevenboilershaveoxygentrimcontrolssettomaintainapproximately3%exce2.1233 Implemented 5,000 0.2% $49,996 0.2% NaturalGas1.3‐ChangeBoilerEfficiency Steam Boiler#2:ImproveCombustionEfficiency 2.1233 Implemented 750 0.2% $7,900 0.2% NaturalGas1.3‐ChangeBoilerEfficiency Steam TheeconomizerpipingontheCB350includesabypassloopwithvalvingformaint2.7241 Implemented 580 0.2% $6,000 0.2% NaturalGas1.3‐ChangeBoilerEfficiency Steam LowerDAtankpressureandtemperaturetoimproveeffectivenessoftheeconom 2.2126 Implemented 786 0.1% $8,000 0.2% NaturalGas1.3‐ChangeBoilerEfficiency Steam Generally,boilersroomarewarmduetotheheatradiatedfromtheboilershells,t2.1213 Implemented 1,230 0.1% $10,000 0.1% NaturalGas1.3‐ChangeBoilerEfficiency Steam ChangeBoilerEfficienciesonBoiler8020 2.1233 Implemented 2,522 0.1% $25,014 0.2% NaturalGas1.3‐ChangeBoilerEfficiency Steam ImproveBoiler#1O2trim2.1233 Implemented 1,752 0.1% $19,000 0.2% NaturalGas1.3‐ChangeBoilerEfficiency Steam Allthreeidenticalboilershavefeedwatereconomizersthatareoperatingwell.Bo2.1133 Implemented 660 0.1% $6,300 0.1% NaturalGas1.3‐ChangeBoilerEfficiency Steam Theboilerspresentlyoperatewithahigherlevelofexcessairthanislikelynecessa2.1231 Implemented 705 0.1% $6,000 0.1% NaturalGas1.3‐ChangeBoilerEfficiency Steam Repairboilerrefractory 2.1131 Implemented 1,263 0.1% $9,000 0.1% NaturalGas1.3‐ChangeBoilerEfficiency Steam Burners‐Controls 2.1221 Implemented 813 0.1% $12,000 0.1% NaturalGas1.3‐ChangeBoilerEfficiency Steam Maintain3%XO2withfrequentmonitoringofstackconditions. 2.121 Implemented 493 0.1% $6,500 0.2% NaturalGas1.3‐ChangeBoilerEfficiency Steam ChangeBoilerEfficiency(boiler5)2.1233 Implemented 8,271 0.1% $17,122 0.0% Coal1.3‐ChangeBoilerEfficiency Steam Tuneboiler#8forhigherefficiency.(PickList#3) 2.1233 Implemented 16,294 0.1% $48,000 0.1% Coal1.3‐ChangeBoilerEfficiency Steam ChangeBoilerEfficiency(FourPackageBoilers) 2.1233 Implemented 5,849 0.1% $39,764 0.1% NaturalGas1.3‐ChangeBoilerEfficiency Steam Changeboilerefficiency(1PBO2to2.5%) 2.1233 Implemented 5,859 0.1% $50,198 0.1% NaturalGas1.3‐ChangeBoilerEfficiency Steam Changeboilerefficiency(2PBO2to2.5%) 2.1233 Implemented 5,835 0.1% $49,995 0.1% NaturalGas1.3‐ChangeBoilerEfficiency Steam BoilerSequencing 3.1191 Implemented 576 0.1% $8,000 0.1% NaturalGas1.3‐ChangeBoilerEfficiency Steam ChangeBoilerEfficiency(boiler3)2.1233 Implemented 6,979 0.1% $14,446 0.0% Coal1.3‐ChangeBoilerEfficiency Steam PreheatCombustionAirwithHigh‐PressureCondensate Implemented 500 0.1% $0 0.0% NaturalGas1.3‐ChangeBoilerEfficiency Steam Combustionmanagementofboilers 2.2133 Implemented 19,920 0.0% $50,000 0.0% Coal1.3‐ChangeBoilerEfficiency Steam ImproveBoilerCombustionEfficiency–Theexisting#3boileroperatescontinuous2.1212 Implemented 368 0.0% $3,684 0.0% NaturalGas1.3‐ChangeBoilerEfficiency Steam Modifyboilerstoreducethecostofmixed‐fueloperationforNOxsuppression 2.1224 Implemented 0 0.0% $7,885,972 13.8% NaturalGas