PNM Environmental Stewardship - Questline
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PNM believes that the energy needed to support strong economic growth, customer affordability and reliability needs to come from diverse resources including coal, natural gas, nuclear, wind, solar and other renewables. The company has made significant investments in reducing the environmental impact of existing facilities while increasing investments in renewable energy and energy efficiency. Below are just a few of the environmental stewardship efforts made by PNM. San Juan Generating Station (SJGS) • A major environmental upgrade project was completed in 2009. Overall, these recent upgrades have reduced nitrogen oxide (NOx) emissions by 44%, sulfur dioxide (SO2) emissions by 71%, and particulate matter emissions by 72% based on a comparison of the 2005 and 2010 actual emissions. • This environmental upgrade has resulted in San Juan being an industry leader in mercury emissions control, achieving a 99% removal rate based on EPA- required stack testing and using new activated carbon injection technology. • PNM has recently agreed to a voluntary lower SO2 limit calculated on a 30 day rolling average. This will decrease the permitted emission of SO2 (in tons per year) by 23%. • In the late 1990s, a limestone forced oxidation SO2 removal system was installed, and the Wellman-Lord system was decommissioned. The limestone removed 25% more SO2 than the Wellman-Lord system had. (Based on actual 1996 emissions and actual 2010 emissions) • The Wellman-Lord system for sulfur dioxide removal was installed in the 1970’s. It removed approximately 55% of the SO2 in the gas stream (based on 2006 emissions). • All four units at San Juan were built with electrostatic precipitators for particulate control. The precipitators removed approximately 99.5% of the ash from the gas stream. • Units 1, 3, and 4 were built with low NOx burners. This decreased potential NOx emissions by approximately 35%. PNM Environmental Stewardship San Juan has completed numerous installations and upgrades related to pollution control throughout the lifetime of the plant that has resulted in significant emissions reductions. November 9, 2011
Transcript of PNM Environmental Stewardship - Questline
PNM believes that the energy needed to support strong economic growth, customer affordability and reliability needs to come from diverse resources including coal, natural gas, nuclear, wind, solar and other renewables. The company has made significant investments in reducing the environmental impact of existing facilities while increasing investments in renewable energy and energy efficiency. Below are just a few of the environmental stewardship efforts made by PNM.
San Juan Generating Station (SJGS)• Amajorenvironmentalupgradeprojectwascompletedin2009.Overall,
theserecentupgradeshavereducednitrogenoxide(NOx)emissionsby44%,sulfurdioxide(SO2)emissionsby71%,andparticulatematteremissionsby72%basedonacomparisonofthe2005and2010actualemissions.
• ThisenvironmentalupgradehasresultedinSanJuanbeinganindustryleaderinmercuryemissionscontrol,achievinga99%removalratebasedonEPA-requiredstacktestingandusingnewactivatedcarboninjectiontechnology.
• PNMhasrecentlyagreedtoavoluntarylowerSO2limitcalculatedona30dayrollingaverage.ThiswilldecreasethepermittedemissionofSO2(intonsperyear)by23%.
• Inthelate1990s,alimestoneforcedoxidationSO2removalsystemwasinstalled,andtheWellman-Lordsystemwasdecommissioned.Thelimestoneremoved25%moreSO2thantheWellman-Lordsystemhad.(Basedonactual1996emissionsandactual2010emissions)
• TheWellman-Lordsystemforsulfurdioxideremovalwasinstalledinthe1970’s.Itremovedapproximately55%oftheSO2inthegasstream(basedon2006emissions).
• AllfourunitsatSanJuanwerebuiltwithelectrostaticprecipitatorsforparticulatecontrol.Theprecipitatorsremovedapproximately99.5%oftheashfromthegasstream.
• Units1,3,and4werebuiltwithlowNOxburners.ThisdecreasedpotentialNOxemissionsbyapproximately35%.
PNM Environmental Stewardship
San Juan has completed numerous installations and upgrades related to pollution control throughout the lifetime of the plant that has resulted in significant emissions reductions.
November9,2011
Other SJGS environmental efforts:• In2010,SanJuanrecycled2054tonsofmaterialand
disposedof1604tonsinthelandfillforanoveralldiversionrateof56%.
• Recycledmaterialsinclude720tonsofflyash,950tonsofmetal,and384tonsofothermaterialsincludingmachinery,belting,woodpallets,usedoil,woodpallets,furniture,cardboard,paper,electronicwaste,belting,andofficesupplies.
• SanJuanhasoneofthemostactivereduce,re-use,recycleprogramsinthecompanyandhasdemonstratedcontinualimprovementsince2003whentheirTeamGreen(agroupofemployeescommittedtosustainabilityimprovements)wasformed.
• SanJuan’sprogramhasgrownsignificantlysinceitwasfoundedin2003.In2004,SanJuanrecycled2typesofmaterialincluding253tonsofmetalandonetonofpaper.
• Between1979and1983,PNMinstalledacomprehensivewatermanagementsystemandbecameazerodischargefacility.Thewatermanagementsystemreusesriverwater8to14timesbeforeitisplacedinevaporationpondsonsite.
Other Environmental Stewardship Efforts:
paidbothfortheexcessenergytheyproduceaswellasfortheenvironmentalattributesofthatenergy,isexpectedtoaddanother25megawattsofsolartothePNMsystem.Currentlymorethan1,800PVcustomerinterconnectionsprovide12megawattsofcapacityonoursystem.
• PNMwasalsotheleadinthenation’sfirstsolarstoragefacilityintegratedintothepowergrid.PartiallyfundedbytheAmericanRecoveryandReinvestmentActof2009,thePNMProsperityEnergyStorageProjectisthefirstARRA-fundeddemonstrationtogoonline.Theprojectfeaturesoneofthelargestcombinationsofbatterystorageandphotovoltaicenergyinthenationandinvolvesextensiveresearchanddevelopmentofsmartgridconcepts.Theprojectcanproduce500kilowattsofpoweranduseshigh-techbatteriestocreatefirmanddispatchableenergyderivedfromarenewableenergysource.
• InAprilofthisyear,PNMissuedanallsourceRequestforProposalforrenewableenergy,receivingmorethan300proposalsrepresentingdiversetypesofrenewablesincludingsolar,geothermal,wind,biomassandhydropower.BasedonPNM’s20-yearplanningprocess,34percentofPNM’sfutureenergyresourcesneededtoservecustomersby2030willcomefromrenewables.
Energy Efficiency• Since2007,PNMcustomershavetakenadvantageof
avarietyofPNMprogramstohelpthemsaveenergy.From2007to2011,customershavesaved135millionkWhannually–equivalenttotheenergyconsumedannuallyby18,600homes.Thesestepsreducecarbondioxideemissionsbyanestimated192millionpoundsperyear–theequivalentoftaking17,500offtheroadforayear.
Alternative Fleet Vehicles• In2005,PNMbeganpurchasingbiodieselfuelfor
fleetvehicles.PNMusesa20percentbiodieselblend(B20),which,accordingtotheU.S.DepartmentofEnergy,reducecarbondioxideemissionsby15percent.
Renewables:
• In2003,PNMcommittedtoaddingrenewableenergytoitsportfoliowiththeadditionofa204-megawattwindfacility,theNewMexicoWindEnergyCenter.PNM’sSkyBlueprogram,inplacesince2003,hasallowedPNMcustomerstodemonstratetheirsupportofrenewableenergy.Morethan15,000customersvoluntarilysubscribetotheprogram,makingPNM’sprograminthetop15forenergysalesinthenationandoneofthemostsuccessfulprogramsinthecountrybyDOEstandards.
• SolarisalsoagrowingpartofPNM’sportfolio.PNMiscompletingafinallargescalephotovoltaic(PV)solarfacility,oneoffivesuchfacilitiestotaling22megawatts.PNM’scustomersolarprogram,inwhichcustomersare
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