Measured Performance of.pdf

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1、MeasuredPerformanceofBuildingIntegratedPhotovoltaicPanels—Round2Architects,buildingdesigners,andbuildingownerspresentlylacksufficientresourcesforthoroughlyevaluatingtheeconomicimpactofbuildingintegratedphotovoltaics(BIPV).TheNationalInstituteofStandards

2、andTechnology(NIST)isaddressingthisdeficiencybyevaluatingcomputermodelsusedtopredicttheelectricalperformanceofBIPVcom-ponents.Tofacilitatethisevaluation,NISTiscollectinglong-termBIPVperformancedatathatcanbecomparedagainstpredictedvalues.Thelong-termdata

3、,inaddition,providesinsightintotherelativemeritsofdifferentbuildingintegratedapplications,BrianP.Doughertyhelpstoidentifyperformancedifferencesbetweencelltechnologies,andrevealsseasonale-mail:Brian.Dougherty@nist.govvariations.Thispaperaddstotheslowlyg

4、rowingdatabaseoflong-termperformancedataonBIPVcomponents.Resultsfrommonitoringeightdifferentbuilding-integratedA.HunterFanneypanelsovera12-monthperiodaresummarized.Thepanelsareinstalledvertically,facee-mail:Hunter.Fanney@nist.govtruesouth,andareaninteg

5、ralpartofthebuilding’sshell.TheeightpanelscomprisethesecondsetofpanelsevaluatedattheNISTtestfacility.CelltechnologiesevaluatedasMarkW.Davispartofthissecondroundoftestingincludesingle-crystallinesilicon,polycrystallinee-mail:Mark.Davis@nist.govsilicon,a

6、ndtwothinfilmmaterials:tandem-junctionamorphoussilicon
2-a-Siandcopper-indium-diselenide(CIS).Two2-a-SipanelsandtwoCISpanelsweremonitored.NationalInstituteofStandardsandTechnologyForeachpairofBIPVpanels,onewasinsulatedonitsbacksidewhilethebacksideof100

7、BureauDrive,BR/B320,MS8632thesecondpanelwasopentotheindoorconditionedspace.ThepanelwiththebacksideGaithersburg,Maryland20899-8632thermalinsulationexperiencedhighermiddayoperatingtemperatures.Thehigheroper-atingtemperaturescausedagreaterdipinmaximumpowe

8、rvoltage.Themaximumpowercurrentincreasedslightlyforthe2-a-SipanelbutremainedvirtuallyunchangedfortheCISpanel.Threeoftheremainingfourtestspecimenswerecustom-madepanelshavingthesamepolycrystallinesolarcellsbutdifferentglazings.Twodifferen