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Energy & storage systems
MANmoltensaltenergystorage(MOSAS)isaneconomicaland flexibletechnologythatcanbe integratedinvariousapplications.Itstorestheheatofrenewable energiesdirectly,e.g.from concentratedsolarpower(CSP),orindirectlyviaelectricheatersorheatpumps.Theheatislaterconvertedintosteamtodirectlyfeedthe consumerortopowerasteam turbineandgenerateelectricitywhenthereisnosunshineorwind.StoragesystemsbasedonMANMOSASachieveexcellentefficiencyduetothehighoperatingtemperatureandheattransferpropertiesofmoltensalt.
Benefits at a glance
– Makesfluctuatingrenewableenergydispatchable
– Long-durationstoragetechnologyfor renewable energy
– Decarbonizedpowergeneration – Retrofittingofthermalpowerplants,e.g.coal-firedpowerplants
– Gridstabilization,peakshavingofvolatileelectricity
– Optimizedlevelizedcostsofelectricityincombinationwith
CSPtechnology
MAN MOSASMolten salt energy storage
Decarbonized energy for
the future
Grid stabilization is needed
Theenergysectoristhemain producerofCO2emissions. Renewableenergysourceshavebecomewidelyavailable, increasinglyreplacingconventionalpowergenerationbasedonfossilfuelsornuclear.Theincreasingexpansionofrenewablesinherentlyleadstosupplyfluctuationswhichputastrainonthegrid.Duetothenon-dispatchabilityofsolarandwindenergy,amismatchbetweensupplyanddemandoftenneedstobedealtwith.ItisjustasimportanttoreduceCO2emissionsinothersectorswherefullelectrificationhasnotbeen possiblesofar.Inbothcases,MANMOSAScanplayanessentialrole.Firstly,bycombiningrenewableswithMOSAS,fluctuationscanbecome manageable.Anymismatchbetweensupplyanddemandcanbesolvedbyshiftinglargeamountsofrenewablepeakenergyintohoursofhigh demand,allowingfurtherexpansionandintegrationofrenewables. Secondly,byconnectingMOSASto arenewableenergysourceand providingsufficientcapacityforenergystorage,largeamountsof
renewablesteamattherequired temperatureandpressurelevelscanbemadeavailableinanefficientandreliableway.MOSAShastheabilitytobecomeakeyelementinthe transformationofenergymarkets.MANMOSAStargetsmainly long-termpowerstoragefora dischargedurationofbeyondfourhours,aswellaspower-to-heat applicationsprovidingarenewableanddispatchablesteamsupplytovariousindustrialprocesses.
General competence
MANDWEisthemarketleaderinmoltensaltreactorsystemsandhasmorethan70yearsofexperience.Weofferfullengineering,procurement,andconstruction(EPC)servicesforMANMOSASplantsallovertheworld.Witheffectivetechnologies,renewableenergyiseconomicallysustainableatagloballevel.Thatiswhywearedevelopingour technologyandlookingfornewandmoreadvancedstoragesolutionstogetherwithourpartnersinpowergeneration,industry,andscience.
Key components
– Renewable energy Renewableenergysourcesprovide thepowerforaMOSASplant.
– Electric heaters Electricheaterspoweredby renewablestransformsurpluselectricityintoheatstoredinmoltensalt.
– Heat pumps MOSASincombinationwithheatpumpsleadstofurtherefficiencyincreases.
– Molten salt storage Hotandcoldstoragetanksarepartofthesystemforadjustingthestorage capacitybymeansoftankvolume.
– Molten salt heat exchangers Heatexchangersprovideanefficientandtechnologicallyprovenwaytoconverttheheatstoredbymoltensaltintosteam.
– Steam turbines Steamturbinesdrivingageneratortransformtheheatstoredbymoltensaltbackintoelectricitywhenneeded.
Conventional power plant retrofits
Long-termstoragesystemslike moltensaltaresuitableforretrofits,forinstanceasareplacementforcoal-firedsteamgenerationpartsinanexistingcoalplant.Byaddingelectricheatersorheatpumps(drivenbyrenewableenergysources), storagetanks,andmoltensaltheat exchangersforsteamgeneration,therestoftheplant’sfacilities,suchaspowerblockandcoolingsystems,canbekeptinplace.Thus,atruly decarbonizedgenerationassetcanbecreatedbymodifyingexistingplantswithreducedinvestmentcostscomparedtoanewbuiltplant.
MAN MOSAS system solutions
Long-duration energy storage
Renewableenergyisusedtorunanelectricheaterorheatpumptoheatupcoldmoltensalt,whichisthenpumpedintoahotmoltensaltstoragetank.Fordischarging,thehotmoltensaltisprocessedfurtherthroughasteamgenerator,followedbyelectrificationinasteamturbinecycle.Therefore,thecombinationofrenewableenergywithMOSASprovidestherequisitedispatchabilityoffering“higher-value”electricitytothegridorthecustomer.
Energy recovery
MANMOSAScanoptimizeindustrialbatchprocesseswithhighfluegastemperatures.Bytransferringfluegasenergytothemoltensaltstorage,thefluctuationiscompensatedforandcontinuousenergyproductionispossible,therebyreducingthecostsassociatedwiththeprocess.
Concentrated solar power
Incombinationwithconcentratedsolarpower(CSP),MANMOSAS offersasustainablewaytoachievelowlevelizedcostsofelectricity(LCOE)andincreasedcapacity factorsintheSunBeltregion.Bystoringthermalenergyinan integratedmoltensaltenergystoragesystem,CSPplantscankeep operatingatnighttimeorwhenthesunisnotshining.
Power-to-heat
Forcharging,thesameprincipleasaboveisapplied.Fordischarging,steamgeneratedinthemoltensaltsteamgeneratorisfedtotheconsumers.Forspecialapplications,thehotmoltensaltmaybedirectlyusedforprocessheating.Hence,MOSASconnectedtoarenewableenergysourceensuressectorcoupling,allowingdecarbonizationofindustrialheatgenerationwithhighsteamdemands.
MAN Energy Solutions86224 Augsburg, GermanyP+ 49 821 322-0F+ 49821 [email protected]
MAN Energy SolutionsDWE®-Reactors94469Deggendorf,GermanyP+ 49 991 381-164F+ 49 991 [email protected]
Alldataprovidedinthisdocument isnon-binding.Thisdataservesinfor- mationalpurposesonlyandisnotguaranteedinanyway.Dependingonthesubsequentspecificindividual projects,therelevantdatamaybesub- jecttochangesandwillbeassessedanddeterminedindividuallyforeachproject.Thiswilldependonthepartic- ularcharacteristicsofeachindividualproject,especiallyspecificsiteandoperationalconditions.
Copyright©MANEnergySolutions.D2366622-N2PrintedinGermanyGGKM-AUG-20120