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Welcome to the PVMET Wiki about Photovoltaic (PV) metrology.

STC Calibration methods

• Standard Test Conditions (STC) (IEC 60904-3)
• Primary calibration methods (IEC 60904-4)
  • Differential spectral responsivity (DSR) method (+ IEC 60904-8)
  • Direct sunlight method (DSM)
  • Global sunlight method (GSM)
  • Solar simulator method (SSM)

• Secondary calibration methods
  • Measurement of current-voltage (I-V) characteristics of solar cells and modules (IEC 60904-1)
  • IV curve correction / Conversion between different irradiances and temperatures (IEC 60891)
  • Spectral mismatch calculation (IEC 60904-7)

• Reference devices (IEC 60904-2)

• Auxiliary measurements
  • Characterisation of solar simulator: Solar simulators in photovoltaic (PV) applications - Technology, classification and calibration (IEC 60904-9)
  • Measuring the Spectral Irradiance of Solar Simulators for Solar Cell Calibrations
  • Measurement of the device and aperture area
  • PV device temperature (IEC 60904-5)
  • EL measurements (IEC 60904-13)

• Calibration of emerging and metastable PV Device (IEC TR 63228, IEC 60904-1-1, IEC 60904-8-1)
  • Traditional and emerging solar modules, current situation, market overview and new trends for BIPV systems

Energy rating (IEC 61853)

• Principals of Energy Rating (IEC 61853-3, IEC 61853-4)

• Irradiance-Temperature Matrix (IEC 61853-1)
  • Determination of temperature coefficients
  • Procedures and Setups for the Measurement of the temperature coefficient of photovoltaic devices (IEC 61853-1)
  • Procedures and Setups for the Measurement of the linearity of photovoltaic devices (IEC 60904-10)

• Spectral responsivity of PV modules (IEC 61853-2, IEC 60904-8)
  • Energy Rating with an LED-based solar simulators

• Angular responsivity measurements (IEC 61853-2)
• Wind dependencies (IEC 61853-2)
• Development of a shading resistance metric for solar modules
• Uncertainty of PV Module Energy Rating in accordance with IEC 61853

Measurements of bifacial photovoltaic devices (IEC TS 60904-1-2)

• Procedures and Setups for the Measurement of Bifacial Solar Devices
• Best Practice Recommendations for Energy Yield Measurement of Bifacial PV Modules
• Comparison of Measurement Procedures Proposed in IEC Technical Specification 60904-1-2 for Bifacial Solar Cells and Modules
• Summary of Standards Procedures for Bifacial Parameters Measurements and Calculations
• Challenges of energy rating of bifacial and BIPV modules
• Optical simulations of bifacial PV cells and modules

Emerging PV and PV applications and their metrological challenges

• Indoor PV
• BIPV
• Agriculture PV
• Vehicle PV (in future: 60904-1-3)