Integrated_Solar_Radiation_Data_Sources-Final_Report.docx -...

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1Integrated Solar RadiationData Sources over AustraliaFinal report: project results and lessons learntLead organisation: Commonwealth Scientific and Industrial Research Organisation (CSIRO)Project commencement date: 1stSeptember 2012 Completion date: 27thAugust 2015 Datepublished:Contact name: Alberto TroccoliTitle: DrEmail:[email protected]Phone: 02 6281 8251Website:
Table of ContentsTableof Contents...................................................................................................................................2ExecutiveSummary...............................................................................................................................3Project Overview...................................................................................................................................6Project summary............................................................................................................................6Project scope.................................................................................................................................8Outcomes....................................................................................................................................12Transferability..............................................................................................................................32Conclusion andnext steps...........................................................................................................32References...................................................................................................................................34Lessons Learnt.....................................................................................................................................35Lessons Learnt Report: Availability of qualitysolar data..............................................................35Lessons Learnt Report: Analysis of direct beamdata...................................................................36Lessons Learnt Report: Delays in signing the agreement between CSIROandNREL...................37
Executive SummarySolar generating capacity in Australia has been growing to an estimated installed capacity exceeding 4,000MW,particularlywiththeproliferationofgrid-connectedroof-topPV,aswellasthemore recentlargescalesolarinstallationatNyngam,BrokenHillandRoyalla(withotherMW-scaleplants due to become operational in the near term). An accurate and reliable solar resource assessment is therefore essential to assist with planning and development of new solar generation. Indeed, solar powerdevelopersandfinanciersregarduncertaintyinthevolatility(orinter-annualvariability)of solar irradiance as a crucial element in the estimation of the power output of solar farms, and ultimately their financing.Theaimofthe36-month,1.4million,projectIntegratedSolarRadiationDataSourcesoverAustralia (ISRDSA) was to provide solar power developers and installers with an improved solar data resource andan enhanced understanding of its uncertainty by exploiting three sources of solar radiation data: groundbased,satellite-derivedandatmosphericmodeloutput(Figure1).Theproject,co-fundedby the Australian Renewable Energy Agency (ARENA), was coordinated by the Commonwealth Scientific and Industrial Research Organisation (CSIRO) and was executed in partnership with the Bureau of Meteorology (BoM) and the US Renewable Energy Laboratory (NREL).Conventionally the main widely available sources of resource (or historical) solar radiation data for Australiahavebeengroundstationobservationsandsatellite-derivedproducts.Theformer represent the best quality data, since it provides what is actually seen at ground level, where potentialsolarplantsareplannedand/orinstalled.However,high-qualitygroundstationsare expensive to set up and maintain. This is why the current network is sparse and often not sufficient forindustryneeds.Satellite-derivedradiationdata,ontheotherhand,offertheadvantageofa much wider coverage at the expense of accuracy (it is a derived quantity) and temporal resolution (currently only hourly instantaneous data are available).

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