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Heat
pumps
–
Emergingtrends
in
the
AustralianmarketSEPTEMBER
2023Heatpumps
–EmergingtrendsintheAustralian
marketThispublicationhasbeenfunded
bythe
DepartmentofClimateChange,Energy,the
EnvironmentandWater.PreparedbyPeterBrodribb,MichaelMcCann,
Jelena
Franjićand
GraemeDewerson.ExpertGroupSuite12,
2-8StAndrewsStreet,Brighton,
Victoria3186Telephone+61
395929111Web.au©Commonwealthof
Australia2023OwnershipofintellectualpropertyrightsUnlessotherwisenoted,
copyright(andanyotherintellectual
propertyrights)
inthispublicationisownedbytheCommonwealthof
Australia
(referredtoasthe
Commonwealth).CreativeCommonslicenceAllmaterialinthispublicationis
licensedundera
CreativeCommonsAttribution4.0
InternationalLicence
exceptcontentsuppliedbythirdparties,logosandtheCommonwealthCoatofArms.Inquiriesaboutthe
licenceandanyuseof
thisdocumentshould
beemailed
to
copyright@.au.CataloguingdataThispublication(andany
materialsourcedfromit)should
beattributed
as:Heat
pumps
–
EmergingtrendsintheAustralianmarket,PeterBrodribb,MichaelMcCann,Jelena
Franjicand
GraemeDewerson,reportpreparedfortheDepartmentof
Climate
Change,Energy,the
EnvironmentandWater,Canberra.CCBY4.0.Thispublicationisavailableat
.au/environment/protection/ozone/publications.Departmentof
Climate
Change,Energy,the
EnvironmentandWaterGPOBox
3090
CanberraACT2601Telephone1800900090Web.auDisclaimerThe
viewsandopinionsexpressed
in
thispublicationdonotnecessarilyrepresenttheviews
of
the
AustralianGovernment
orthe
portfolioministersfortheDepartmentofClimate
Change,Energy,the
EnvironmentandWater.The
AustralianGovernmentactingthroughthe
DepartmentofClimate
Change,Energy,the
EnvironmentandWaterhasexercisedduecare
and
skillinpreparingandcompilingtheinformationanddatainthispublication.Notwithstanding,the
Departmentof
Climate
Change,Energy,the
Environmentand
Water,itsemployeesandadvisersdisclaimallliability,includingliabilityfornegligenceandforanyloss,damage,
injury,expenseorcostincurredbyanypersonasaresultofaccessing,
usingorrelyingonanyofthe
informationordatainthispublicationto
the
maximumextentpermittedby
law.AcknowledgementofCountryWeacknowledge
the
TraditionalCustodiansofAustralia
and
theircontinuingconnectionto
land
and
sea,waters,environment
andcommunity.Wepay
ourrespectsto
the
TraditionalCustodiansof
thelands
weliveand
work
on,theirculture,andtheirElders
pastandpresent.DepartmentofClimateChange,Energy,theEnvironmentandWater2Heatpumps
–EmergingtrendsintheAustralian
marketCONTENTS12EXECUTIVESUMMARY..................................................................................................................5INTRODUCTION
..........................................................................................................................72.1
DESCRIPTIONOFTECHNOLOGY..............................................................................................................
72.2
INTERNATIONALOVERVIEW,
THE
KEYDRIVERS,
ANDEMERGINGTECHNOLOGIES.............................................
72.3
TRENDSANDOBSERVATIONSBYREFRIGERANTTYPE................................................................................
102.4
OVERVIEWOFGOVERNMENTINITIATIVESDRIVINGHEATPUMPINSTALLATIONS
...........................................
113OVERVIEWOFHEATPUMPTECHNOLOGIES
......................................................................................
183.1
HEATPUMPCLOTHESDRYERS
.............................................................................................................
183.2
DOMESTIC
HOT
WATER
HEATPUMPS
...................................................................................................
213.3
SWIMMINGPOOLHEATPUMPS...........................................................................................................
263.4
REVERSECYCLEAIRCONDITIONING
......................................................................................................
303.5
COMMERCIALHEATPUMPS
................................................................................................................
363.6
OTHERHEATPUMPTECHNOLOGIES......................................................................................................
424THERISKSOFEMERGINGHEATPUMPS
...........................................................................................
444.1
POTENTIALIMPACTSONTHE
HFC
PHASEDOWN
....................................................................................
444.2
POTENTIALIMPACTONEND-OF-LIFEEMISSIONS.....................................................................................
474.3
PREMATUREPRODUCTFAILUREANDWAVEOFWARRANTIES
....................................................................
48BIBLIOGRAPHY...........................................................................................................................
51APPENDIXA
...............................................................................................................................
56PART1
–
TAXONOMYOFTECHNOLOGY
.........................................................................................................
56PART2
–
TECHNICALCHARACTERISTICSBYPRODUCTCATEGORY
........................................................................
58TABLESTable1:Summaryof
technologyopportunitiesfor
newheatpumpequipmentbyGWPthreshold................................................................................................................................................................................................11Table2:Energyefficiency
andrenewableenergyschemesthatareprovidingtangible
incentivesthataredrivingheatpumpactivities......................................................................................................................14Table3:Installationsofhotwaterheatpumps
that
receivedsmall-scaletechnology
certificatesundertheRenewableEnergyTarget
schemein2022.....................................................................................17Table4:Risks
ofdirectemissionsfrom
end-of-life
heatpumps.................................................................48Table5:Air
conditioningandheatpumptaxonomyoftechnology...........................................................57FIGURESFigure1:Salesandprojectionsfordomesticheatpumpclothesdryersfrom
2015to2036.........19Figure2:New
salesmixprojectionbyunitsfordomesticheatpumpclothesdryersfrom
2022to2036......................................................................................................................................................................................20Figure3:Refrigerantbankofheatpumpclothesdryersfrom
2022to2036intonnes....................21Figure4:SalesProjectionbyunitsoftheAustralianhotwater
marketandhotwaterheatpumpsfrom2021to2036..........................................................................................................................................................23DepartmentofClimateChange,Energy,theEnvironmentandWater3Heatpumps
–EmergingtrendsintheAustralian
marketFigure5:New
salesmixprojectionbyunitsfordomestichotwater
heatpumps
from
2022to2036......................................................................................................................................................................................25Figure6:Refrigerantbankofhotwater
heatpumps
from
2022to
2036
intonnes...........................25Figure7:SalesProjectionbyunitsof
swimmingpoolheatpumpsfrom
2021to
2036....................28Figure8:New
salesmixprojectionbyunitsforswimming
poolheatpumpsfrom
2022to2036................................................................................................................................................................................................29Figure9:Refrigerantbankofswimmingpool
heat
pumpsfrom
2022to2036intonnes...............29Figure10:Salesofsingle
split
systemsfrom
2012to2022,and
salesprojectionto2036..............32Figure11:Newsalesmixprojectionbyunitsforsmallair
conditioning(singlesplit:
non-ducted)heatpumpsfrom
2022to
2036
................................................................................................................................33Figure12:Newsalesmixprojectionbyunitsformediumair
conditioning(splitsystem:ducted)heatpumpsfrom
2022to
2036
................................................................................................................................34Figure13:Refrigerantbankofsmallair
conditionernon-ductedsplitsystemsfrom
2022to2036intonnes
.............................................................................................................................................................................35Figure14:Refrigerantbankofmediumair
conditionerfrom2022to2036in
tonnes.....................36Figure
15:Newsalesmixprojectionbyunitsforcommercialheatpumpsfrom2022
to2036...................................................................................................................................................................
41Figure16:Refrigerantbankofcommercialheatpumpsfrom
2022to
2036
intonnes....................42Figure17:HFCPhasedownstepsandrefrigerantusagefrom
2022to2036inMtCO
e................462DepartmentofClimateChange,Energy,theEnvironmentandWater4Heatpumps
–EmergingtrendsintheAustralian
market1
ExecutivesummaryInrecentyears
heatpumpshavebeenrecognisedas
anintegraltechnology
intheglobal
efforttoimproveenergyefficiencyaspartofdecarbonisation.GovernmentsofthelargestandmostadvancedeconomiesinEurope,the
US,Japan,ChinaandAustraliaare
deployingpoliciesandincentiveswhicharedriving
dramaticgrowth
inthetechnologicaladvancement,manufacture,andsalesof
heatpumptechnologiesacrossarange
ofapplications.InAustralia,Governmentsarecontinuingtorollout
programsandincentivesaimedatacceleratingenergyefficiencyimprovements.
Consequently,heatpumpsareplayinganincreasinglylargerroleintheseeffortsacrossbothcommercialandresidential
sectorsinapplicationsincludingspaceheatingandcooling,hotwaterheating,clothesdryersand
swimmingpool
heating.Despitethewelldocumentedadvantagesof
thetechnologyandresultingpositivecontributionstowardsdecarbonisationonagloballevel,heatpumpsdeployedaroundtheworldinincreasingnumbersareprimarilychargedwithhydrofluorocarbon(HFC)refrigerantsthathavehighglobalwarmingpotentials(GWP).TheseHFCs
are
subject
toaninternationalagreementtosignificantlyphasedownproductionandbulkimportsundertheKigaliAmendmenttotheMontrealProtocolonSubstancesthatDepletetheOzoneLayer.Under
theagreement,participating
countries,includingAustralia,arerestrictedbyadiminishingquotasystem
whichlimitsbulkimportsofHFCs.AlthoughHFCs
usedinpre-chargedequipmentareaccountedfor
inthecountryofmanufacture,ongoingservicing,andendof
lifemanagementofthis
growing
technologyrequiresconsideration.Therefore,
thisstudywas
designedto
assessthedemandsonfuturerefrigerantusageto2036withanexpected
increaseinheatpumpdeployment.Asummaryof
keymessagesfrom
thereportareasfollows:•••Australiais
experiencingasurgeof
heatpump
salesthatis
expectedto
continueatleastintothemid-2030sasheatpumpscontinuetoreplacegas
appliancesinbothexistingandnewbuildings.TheadditionalHFCusage
fromthe
surgeinheatpumpsisestimatedtoadd
upto0.071
milliontonnesof
carbondioxideequivalent(MtCO
e),equatingto
around4.4%of2theMontrealProtocollimitof1.622MtCO
e
in2036.2Thelargestemissionrisk
fromthis
equipment–hermeticallysealedheatpumpsandsplit
systemairconditioners
–willbeatendoflife.Thereis
nonationallegislativeapproachtothe
end-of-lifedisposalandrecyclingof
heatpumps,air
conditioningequipmentandrefrigerationequipment.•Todatethere
havebeenfewrestrictionsontheGWPofrefrigerantsin
heatpumpequipmenthoweverthisis
changingwithinternationalandAustralianregulations
andincentivesexpectedto
influence
manufacturers’choice
ofrefrigerantinproductssold
inAustralia,particularly:ooFrom1July2024theAustralianGovernmentwillbantheimportandmanufactureof
smallairconditionersusingrefrigerantwithaGWPover
750.Theamendmentstothe
EuropeanRegulationNo517/2014(the
F-gasregulations).DepartmentofClimateChange,Energy,theEnvironmentandWater5Heatpumps
–EmergingtrendsintheAustralian
marketoThe
VictorianEnergyUpgradesprogram
proposedthathotwaterheatpumpswithrefrigerantswith
aGWPgreaterthan700will
notbeeligibleundertheVictorianEnergyUpgradesprogram
after1July2024(DEWLP2022).DepartmentofClimateChange,Energy,theEnvironmentandWater6Heatpumps
–EmergingtrendsintheAustralian
market2
Introduction2.1
Descriptionof
technologyHeatpumpsusevapourcompressionheattransfertechnologysimilartothatfoundinarefrigerator.Heatpumpsuseelectricityandrefrigeranttoextractheatfromasource,suchas
thesurroundingair,wateror
groundandtransferheat
froma
coolspacetoawarm
space,
makingthecoolspace
coolerand
thewarm
spacewarmer.
Asmostofthe
heatis
transferredratherthangenerated,heatpumpsarefarmoreefficientthanconventionalheating
technologiessuchasboilers,gasheatersorelectric
resistanceheaters,andcanbelessexpensiveto
run.The
mostcommontypeofheatpumpis
theair-to-airheatpumpcommonlyreferredtoas
areverse
cycleair
conditionerorair
sourceheatpump,whichtransfersheat
between
theoutsideairandyour
houseorabuilding.Air-to-waterheatpumpsareanemergingapplication,whenconnectedtoawatertank,thistypeofheatpumpcantransferheatfrom
theoutsideairtoawaterstoragetankwhichsupplieshotwaterforresidentialandcommercialsettings.Examplesofequipmentthatusearefrigerationcyclethat
are
notheatpumps
includedomesticandcommercialrefrigerators;mobileair
conditioners
(exceptin
electricvehicles
whichmayhaveaheatpump);andcommercial
chillers,(exceptfor
multi-function
chillersthat
haveaheatingfunction).InAustraliarecentsales
datashowsthathotwaterheatpumpsarereplacinggasandelectricresistivehotwaterservices,air-to-airheatpumpsarereplacinggas
ducted
heatersandroomspaceheaters,andlargermulti-functionchillerscapableofbothheating
and
coolinghavepotentialtoreplacegasboilersin
commercialapplications.2.2
International
overview,
the
key
drivers,
and
emergingtechnologiesGlobalinitiativestoreduce
greenhouse
gas
(GHG)emissions,byreplacinggasheatingandinefficientelectricaltechnologieswith
heatpumps,
areleadingtoarapiduptakeofavarietyofheatpumptechnologiesaroundtheworld.2.2.1
EuropeHeatpumpsarewidely
seenasoneofthe
most
importanttechnologiesforenergysecurityanddecarbonisingheatinginEurope.SinceRussia’sinvasionofUkraine,the
resultingenergycrisisandrelatedpolicyintervention,manyEuropeanstatesare
continuingtoprioritisearapidtransitionfrom
fossil
fuelstorenewableenergyandelectrification
(RosenowandGibb2023).Insmallandmediumscaleheating
applicationsthatshift
isdriving
demandfor
heatpumps.Arecord3
million
heatpumpsweresoldacrossEuropein2022,a34%increaseon2021andasignificantincreaseonthepreviousaverageannual
growthofapproximately
10%perannumthroughout
mostofthelastdecade(Rosenowand
Gibb2023).TheEuropeanCommissionhasrecentlyopened
its
callforevidenceonits
proposedheatpumpactionplantoacceleratedeploymentofthetechnologyintheEuropeanUnion(EU)withtheDepartmentofClimateChange,Energy,theEnvironmentandWater7Heatpumps
–EmergingtrendsintheAustralian
marketobjectiveof
installingatleast10
million
additionalheatpumpsby2027(Cooling
Post2023d)inlinewithitsREPowerEUplan.TheEuropeanCommissionputforwardtheREPowerEUplan
inMay2022.
Theplanbuildsontheimplementationofthe‘Fitfor55’proposals,whichsupporttheambitiousEUgoalofachievingareductionofatleast55%netgreenhousegasemissionsby2030andclimateneutralityby2050,inline
withtheEuropeanGreen
Deal.Amongthemeasuressupportedbytheplanaredecarbonisingindustry,acceleratingthe
deploymentofrenewablesandboostingenergyefficiencythrough
theuptakeof
heatpumps(Councilof
theEU
2023b).Simultaneousto,andatoddswiththeseplans
foracceleratedheatpumproll
out,
inarecentvoteonamendmentstotheEuropeanRegulationNo517/2014(theF-gasregulations)revisionproposals,theEuropean
Parliament’senvironment
committeevotedtofast-trackthephasedownofhydrofluorocarbon(HFC)refrigerantsinanumberofapplications,includingheatpumps.TherevisedF-gas
regulations,if
implemented,wouldmeanabanonuseofHFCs
from
as
earlyas2026for
someheatpump
types.ThevotepresentsachallengetoEU’sdecarbonisationandenergysecurityambitions,aswellas
theREPowerEUplan,asHFC
refrigerantsareinstrumentaltothefunctioningofheatpumpsandtheproposed
regulationswouldaffectalmost30thousanddifferentmodelsofequipmentcurrentlypresentin
theEuropeanmarket
(APPLia2023).Atthetimeofwriting,negotiationsareongoingbetweenthe
EU
Counciland
EUCommission,howeverfollowingindustryconsultationtherevisedF-GasRegulationincludessome
easing
ofbans
thatseemmoreachievableforindustry.Inaddition,atransitionfrom
HFCs
tolow
globalwarmingpotential(GWP)alternatives,suchashydrocarbons(HC-290)andHFOs,
involvesconsiderationoftrainingof
installers,safety,energyefficiencyand
productaffordability
(CoolingPost2023a,CoolingPost2023b,CoolingPost2023c).Monobloctechnologyis
oneofthe
more
significant
air-to-waterheatpumptechnologies
that
ismakinginroadsintothecolderUKandEuropean
markets.Monoblocrefersto
a‘singleblock’system,whereall
ofthe
components,apartfrom
thehotwater
cylinder,arefittedintoa
heatpumpunitplacedoutside
thebuilding
(HVP2020).
These
self-containedsystemsdonotrequirerefrigerantpipingandcan
beeasily
mountedtotheexteriorof
abuilding
withthehotwaterstorage
cylinderlocatedinsidethe
building
andconnectedbyonlythewater
piping
(Electronics2022).The
monoblocdesignofferssignificantopportunitiesforrefrigerantswithGWPoflessthan
150,suchas
purepropane,HC-290(GWPof3),andHFC/HFOblendR454C(GWPof
148).Althoughthisisagoodtechnology
optionforEuropeandcolderclimatesthatpredominantlyrequireheating,
itdoesn’tnecessarilyprovideagreatopportunityforwarmer
climatessuchas
Australiawherecoolingisthedominantcomfortrequirement,andhydronicheatingsystemsrepresentaverysmallportionofthe
market.From2019to2023,theEU
fundedthe
TRI-HPproject(tri-generationsystems
–heating,coolingandelectricity-basedon
heatpumpswithnaturalrefrigerantsandmultiplerenewableenergysources)aimedatofferingtailoredsolutionsforEuropeanmulti-familybuildingsusingtrigenerationtechnology.
Thisprogram
has
a
goalof
reducingcostsbyupto15%incomparisonwiththeexistinghydronicheatpumptechnologiesanddecreasinggreenhousegasemissionsfromgasboilersandairchillersby75%.Tri-generationsystemsare
typicallybasedonnaturalDepartmentofClimateChange,Energy,theEnvironmentandWater8Heatpumps
–EmergingtrendsintheAustralian
marketrefrigerantheatpumps
coupledwithrenewable
electricity
generators(e.g.,solarphotovoltaic),usingcoldstorage(suchas
aniceslurry),heatandelectricitystoragestoprovideheating,coolingand
electricity.
Theytypicallyutilisethreeenergysources,solar,
groundsourceandambientair,and
includeadvancedcontrols,managing
electricity,
heatandcooling
inawaythatoptimisestheperformanceofthe
system
(European
Commission2019).Althoughanumberof
unique
solutionsforvariousapplicationshavebeendevelopedinEurope,tri-generation
systemsaremostsuitableforbespokeprojectsusinghydronicheating,withlimitedapplicationpotentialinAustralia.
ThisEU
effortis
alreadygeneratingnovelsolutionsanddrivinginnovationin
developmentanddemonstrationoftri-generationapplications.Awatchingbriefshouldbemaintainedlooking
fortechnologiessuitedto
Australianapplicationsincommercial,
industrial,healthandhotelsectors.2.2.2
UnitedStatesofAmericaThe
UnitedStatesofAmerica(US)
isalsotaking
proactivemeasuresto
encourageafastershifttoheatpumptechnology.In
2021the
US
Department
ofEnergylaunchedtheresidential
ColdClimateHeatPumpTechnology
Challengetoacceleratethedeploymentofcoldclimate
heatpumptechnologies
(U.S.DepartmentofEnergy2021).ManufacturersincludingRheem,
Carrier,Daikin,JohnsonControls,
Lennox
andMitsubishiElectricacceptedthe
challengeaimedatreducingthecarbonfootprintofcoldclimateheatingsolutionsbyimprovingefficiencyandaffordability(CoolingPost2023f).The
UnitedStatesDepartmentofDefenserecently
announced
$250million,fundedthroughtheInflationReductionAct,toincreasedomesticproductionof
heatpumps
usingtheDefenseProductionAct(DPA)authoritiesinvokedbyPresidentBidenin2022.TheDPAdeterminationsarepartoftheUS
plantolowerenergycosts,strengthennational
security,andachieveenergyindependencebyreducingdemandfornaturalresources
(U.S.Departmentof
Energy2023).The2022InflationReductionActis
thelargest
step
thatcongresshastakentoaddressclimatechange.Itaims
toreduceAmericans’energy
costs,
create
goodjobsandtransformUS
effortstoaddresstheclimatecrisis.NotonlydoestheInflationReductionActincentiviseindustry,butitalsoprovidesdirect
incentivesforAmericanfamiliesto
decarbonisetheir
homesthroughtheconversionto
cleanerenergy,includingheatpumps
(Barbanell2022).Of
the
US$394billioncommitted,the
InflationReductionActprovidesnearlyUS$9billionfor
home
energyrebateprogramstoelectrifyappliances,
introduce
solarandbatterystorageandretrofitpropertiestomakethemmoreenergyefficient.Qualifying
home
improvementsareeligible
fora
taxcreditofupto30%of
thetotalcost,cappedat
US$1,200annually.Forheatpumps,thecredit
is
capped
atUS$2,000peryear(AEC2023).HeatpumptechnologieslistedaseligibleforrebatesundertheHomeElectrificationProjectQualifiedTechnologiesincludeenergy
starwaterheaters(up
toUSD$1,750),
spaceheating
andcooling(upto
USD$8,000)and
clothesdryers(uptoUSD$840)(U.S.Departmentof
Energyn.d.).2.2.3
ChinaChina
hasbeenworkingto
reduceits
relianceoncoalfordomesticheatingtoimproveindoorandoutdoorairquality,while
movingtowardsheat
pumpsaspartofdecarbonisationplans(China
Daily2022).In2013theChinese
governmentintroducedthe‘AirPollutionPreventionandControlActionPlan’
whichacceleratedtheuseofcentralisedanddistrict
heatingDepartmentofClimateChange,Energy,theEnvironmentandWater9Heatpumps
–EmergingtrendsintheAustralian
marketencouragingaswitchto
cleanerfuels.
Thispolicywasfollowedbythe2017‘CleanWinterHeatingPlan’forNorthernChinaaimedatimproving
urbanairqualityandreducingoverallenergyconsumption,as
wellasreducing
waterand
heatloss
(Universityof
Birmingham
2023).Despitea
slowdown
insalesgrowththereweremoreheatpumps
soldinChinathananyothercountryin2022.Chinaalsohasthe
largestworkforceinthesectorgloballyandoperatesa40%shareoftheworld’sheat
pump
manufacturingcapacity,
makingitthe
world’slargestproducerandexporterofheatpumptechnology,withmostexportsgoing
toEurope.In
NorthernChina,district
heatingdominatesasthemost
commonheatingsolution
incitiesalthoughmanyhouseholdshaveheatpumps
installedfor
spacecooling
andperiodicheating.InSouthernChina,wheretheclimateis
warmerduring
winter,airsourcereversibleunitsarea
widespreadsolutionforspaceheating.Morethan1
millionairsourcedheatpumps
weresoldthroughoutChina
in2022(IEA2022,Monschaueretal.2023).2.3
TrendsandobservationsbyrefrigeranttypeTable1
illustratesthestateoftechnologyreadiness(green,amberandred)forthemainheatpumpequipmentclassestotransitiontolowerGWP
HFCs
oralternativerefrigerants.
Thisframework,
combinedwith
interviewswithtechnicalexpertsfromglobal
equipment
suppliers,formsthebasisforpredictingnewequipmentsalesmixprojectionsto2036,
whichinturninformtheprojectionsof
thefuturecompositionof
the
refrigerantbank.Thesectionsthatfollowprovide
someexamplesto
supportthetechnology
readinessassessmentandalternati
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