thin-film module field test results in japan · ongoing: exposure test in thailand (nstda, iri,...

Research Center for Photovoltaic Technologies

ThinfilmmodulefieldtestresultsinJapan Abriefreview

KeiichiroSakuraiKazuhikoKatoTetsuyukiIshii YoshihiroHishikawaMichio Kondo

AISTRCPVTJapan

2013228 InternationalPVModuleQATaskForce ThinFilmTaskGroupKickOffMeeting

1

httpunitaistgojprcpvt


Overview bullThoughJapanhasalongexperienceincommercialdeploymentofthin filmmodulesonlyveryfewlongͲtermperformancedatahavebeenmade public

bullRegardingtherecentinternationalmovement(includingtheQAforum) somemanufacturers havedecidedtodisclosedata bullSomehavedecidedtopresentatupcomingconferencesorhavealready presentedatotherconferences

bullThispresentationbrieflyintroducesfieldtestdatacollectedbyJapanese manufacturersandAISTincludingsomedatafromtestsinotherAsian countries

2


ManufacturerA (13) aͲSisinglejunctionfullͲsizerigidmodules(total66) duesouthrackmounted12years (Kadota etalPVSECͲ212AͲ2OͲ05)

15

12

9

6 Internal wiring disconnection

(n=4 excluded) 3

0 0 60 62 64 66 68 70 72 74 76 78 80

Average 7 Number 62 modules

Num

ber

Eff ()

3


ManufacturerA(23) LongͲtermdegradationafterinitialdegradation

(Kadota etalPVSECͲ212AͲ2OͲ05)2525

2020

1515

1010

55

00

Average 04 year Number 62 modules

0000 0202 0404 0066 0808 1010 1122 1414 1616 1188 2020

DeDegrgradatadatiioonn Rate (Rate ( yyeeaarr )) 4

Nu

Numm

bbeerr


ManufacturerA(33) Simulatingthedegradationwith AcceleratedLightSoakingTest(35SUN20䡚80Υ)

(Kadota etalPVSECͲ212AͲ2OͲ05)

20hrsofAcceleratedLightSoakingledto similarefficiencyof䡚12yearsexposedsamples

5


ManufacturerB aͲSitandemflexiblemodulesgluedtorooftopslates13years Prototypemodules(commercialproductsaremadetobemoredurable)

6

Submittedforpresentationat27thEUͲPVSEC(Paris30SepͲ 04Oct2013)

(differentinsolationampangle) Site1 Site2


QuickSummaryoftheJapanesecompaniesdata

Aftertheinitialdegradation䞉SomeoldͲtechnologyͲbasedthinͲfilmSimodules didshowfast(gt1yr)degradation䞉Currenttechnologiescanmaintaindegradationrateof TFͲSimodulesbelow1year (forbothflexiblerigidmodules)

䞉LightsoakingatLOWtemperaturesmayhelptoestimate longͲtermperformanceofTFSimodules (willbepublishedfromthemanufaturerinthenearfuture)

䞉Disconnectionofinternalwiringobservedinsomecases 7

(TIshiietalProgPhotovoltResAppl19(2011)


FieldtestatAIST(TsukubaJapan) (pcͲSiscͲSiaͲSiCIGSHIT)

䞉Runningsince2004䞉Sofarthefirst4yearsofdatahasbeenpublished䞉Thetrendseemstobecontinuinguptonow

170)

8


Monthlyaverageperformanceratio (aftercorrections)(TIshii etalProgPhotovoltResAppl19(2011)170)

9

initialdegradation lightsoaking

aͲSi CIGS

HITscͲSi


AISTmodules

Tostabilizetheperformanceoutdoors2yearswererequired bothforaͲSiandCIGS䞉InitialdegradationofaͲSimoduleslastedfor~2years䞉InitiallightsoakingeffectofCIGSmoduleslasted~2years

(TIshiietalProgPhotovoltResAppl19(2011)170)

Thefieldtestisstillgoingon(20132)butsofar(afternearly8years)䞉nosignificantfailuresobserved䞉degradationrateseemstobeconstant

10


OngoingExposuretestinThailand(NSTDAIRIAIST)

Originalsite(2006Ͳ2007) Presentsite(2008Ͳ)NSTDASolartec movedin2008 PTEC

JSPS175thCommittee The4thThailandͲJapanJointWorkshoponPhotovoltaics BangkokThailand December82012

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(preliminarydatashownattheconference Willbepublishedinthenearfuture inotherconferencesafterchecking spectralmatchingetc)

Possibleannualdegradationbeing observedinThailand

(sincethemoduleshavebeen exposedoutdoorsforgt2yearsinprior initialdegradationcanberuledout)

FieldteststillongoingatNSTDA Thailand


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What we will need in Japan

䞉We definitely need to gather more failure data

䞉Japan has a long experience on commercial deployment of PV systems but most of them have been residential systems䞉Due to space limitation of rooftopsTF installations have been rare䞉However they do exist and some of them do have troubles (next slide)

Need to collectanalyze data from existing installations

䞉Recently both rooftopground-mounted installations of TF PV systems are increasing䞉However almost no publicampsystematic monitoring systems installed yet

(This is also going to be a loss from the viewpoint of grid integration) Need to install a comprehensiveamppublic monitoring system

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There will be more systems waiting for a rescue

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(KazuhikoKatoPVMRW2012)


Summary䞉CurrentTFͲSitechnologiescanmaintaindegradationrateof below1yearafterstabilization䞉Lightsoakingatlowtemperaturesmayhelptoestimate longͲtermperformanceofTFSimodules䞉DisconnectionofinternalwiringreportedinTFͲSimodules䞉Tostabilizetheperformanceoutdoors2yearswererequired forsomeaͲSiandCIGSmodules

䞉Needtocollectanalyzemoredatafromexistinginstallations䞉Needfornationwidemonitoringsystems їfordeploymentofamorereliablecostͲeffectivePVsystems

(itshouldbepossiblewiththetechnologieswehavetoday) SpecialthankstoNEDOJSPSNSTDAIRI

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Overview bullThoughJapanhasalongexperienceincommercialdeploymentofthin filmmodulesonlyveryfewlongͲtermperformancedatahavebeenmade public

bullRegardingtherecentinternationalmovement(includingtheQAforum) somemanufacturers havedecidedtodisclosedata bullSomehavedecidedtopresentatupcomingconferencesorhavealready presentedatotherconferences

bullThispresentationbrieflyintroducesfieldtestdatacollectedbyJapanese manufacturersandAISTincludingsomedatafromtestsinotherAsian countries

2



15

12

9


(n=4 excluded) 3

0 0 60 62 64 66 68 70 72 74 76 78 80


Num

ber

Eff ()

3




2020

1515

1010

55

00


0000 0202 0404 0066 0808 1010 1122 1414 1616 1188 2020


Nu

Numm

bbeerr





5



6












170)

8



9


aͲSi CIGS

HITscͲSi


AISTmodules




10





11







12








13



14






15



15

12

9


(n=4 excluded) 3

0 0 60 62 64 66 68 70 72 74 76 78 80


Num

ber

Eff ()

3




2020

1515

1010

55

00


0000 0202 0404 0066 0808 1010 1122 1414 1616 1188 2020


Nu

Numm

bbeerr





5



6












170)

8



9


aͲSi CIGS

HITscͲSi


AISTmodules




10





11







12








13



14






15




2020

1515

1010

55

00


0000 0202 0404 0066 0808 1010 1122 1414 1616 1188 2020


Nu

Numm

bbeerr





5



6












170)

8



9


aͲSi CIGS

HITscͲSi


AISTmodules




10





11







12








13



14






15





5



6












170)

8



9


aͲSi CIGS

HITscͲSi


AISTmodules




10





11







12








13



14






15



6












170)

8



9


aͲSi CIGS

HITscͲSi


AISTmodules




10





11







12








13



14






15










170)

8



9


aͲSi CIGS

HITscͲSi


AISTmodules




10





11







12








13



14






15



9


aͲSi CIGS

HITscͲSi


AISTmodules




10





11







12








13



14






15


AISTmodules




10





11







12








13



14






15





11







12








13



14






15







12








13



14






15








13



14






15



14






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thin-film module field test results in japan · ongoing: exposure test in thailand (nstda, iri,...

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