State-of-the-Art Measurements for PV - Energetics Meetings and ...

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What is the True Value? = P maxE totA 100 1 = I R,RI R,S MM = 2 1 2 1E RefE Ref( )S Ref ( )d( )S T ( )dWhere:P max is the maximum electrical power produced when illuminated understandard reference conditions– 25 °C junction temperature, 1000 Wm -2 total irradiance,– IEC 60904-3 ed. 2 / ASTM G173 global reference spectrum,other reference spectrumA is the total area of the device including contacts andperipheral bus barsE tot is the total irradiance at standard reference conditions, 1000 Wm -2National Renewable Energy Laboratory Innovation for Our Energy Future 2 1 2 1E SE SReference cell methoduses PV cell or thermaldetector for indoor oroutdoor calibration.( )S T ( )d( )S Ref ( )d
Uncertainty – Primary reference cellThe PV community expects a lower uncertaintythan what the calibration labs can deliver assecondary standards (
Page 1 and 2: State-of-the-Art Measurements for P
Page 6 and 7: Module UncertaintyThe PV community
Page 8 and 9: NREL U.S. - Absolute Total Irradian
Page 10 and 11: Absolute Spectral ResponsivityNatio
Page 12 and 13: Space Based CalibrationsPrimary AM0
Page 14 and 15: Uncertainty• What barriers are in
Page 16 and 17: Isc Linearity with Total Irradiance
Page 18 and 19: Detectors that respond from 300 to
Page 20 and 21: Total irradiance - Traceability to
Page 22 and 23: Total irradiancePyranometer -180°
Page 24 and 25: Recommendations for NIST related ac
Page 26: Recommendations for NIST related ac

State-of-the-Art Measurements for PV - Energetics Meetings and ...

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