Designation:E2848−13StandardTestMethodforReportingPhotovoltaicNon-ConcentratorSystemPerformance1ThisstandardisissuedunderthefixeddesignationE2848;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodprovidesmeasurementandanalysisproceduresfordeterminingthecapacityofaspecificphotovol-taicsystembuiltinaparticularplaceandinoperationundernaturalsunlight.1.2Thistestmethodisusedforthefollowingpurposes:1.2.1acceptancetestingofnewlyinstalledphotovoltaicsystems,1.2.2reportingofdcoracsystemperformance,and1.2.3monitoringofphotovoltaicsystemperformance.1.3Thistestmethodshouldnotbeusedfor:1.3.1testingofindividualphotovoltaicmodulesforcom-parisontonameplatepowerratings,1.3.2testingofindividualphotovoltaicmodulesorsystemsforcomparisontootherphotovoltaicmodulesorsystems,1.3.3testingofphotovoltaicsystemsforthepurposeofcomparingtheperformanceofphotovoltaicsystemslocatedindifferentplaces.1.4Inthistestmethod,photovoltaicsystempowerisreportedwithrespecttoasetofreportingconditions(RC)including:solarirradianceintheplaneofthemodules,ambienttemperature,andwindspeed(seeSection6).Measurementsunderavarietyofreportingconditionsareallowedtofacilitatetestingandcomparisonofresults.1.5Thistestmethodassumesthatthesolarcelltemperatureisdirectlyinfluencedbyambienttemperatureandwindspeed;ifnottheregressionresultsmaybelessmeaningful.1.6Thecapacitymeasuredaccordingtothistestmethodshouldnotbeusedtomakerepresentationsabouttheenergygenerationcapabilitiesofthesystem.1.7Thistestmethodisnotapplicabletoconcentratorphotovoltaicsystems;asanalternative,TestMethodE2527shouldbeconsideredforsuchsystems.1.8ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.9Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsus...
