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 322-3382info@man-es.comwww.man-es.com

MAN Energy SolutionsDWE®-Reactors94469Deggendorf,GermanyP+ 49 991 381-164F+ 49 991 381-5164dwe-info@man-es.comwww.man-es.com

Alldataprovidedinthisdocument isnon-binding.Thisdataservesinfor- mationalpurposesonlyandisnotguaranteedinanyway.Dependingonthesubsequentspecificindividual projects,therelevantdatamaybesub- jecttochangesandwillbeassessedanddeterminedindividuallyforeachproject.Thiswilldependonthepartic- ularcharacteristicsofeachindividualproject,especiallyspecificsiteandoperationalconditions.

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