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    ASTM E948 - 16(2020)

    Standard Test Method for Electrical Performance of Photovoltaic Cells Using Reference Cells Under Simulated Sunlight

    Active Standard ASTM E948 | Developed by Subcommittee: E44.09

    Book of Standards Volume: 12.02

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    Significance and Use

    5.1 This test method provides a procedure for testing and reporting the electrical performance of photovoltaic cells.

    5.2 The test results may be used for comparison of cells among a group of similar cells or to compare diverse designs, such as different manufacturers' products. Repeated measurements of the same cell may be used to study changes in device performance.

    5.3 This test method determines the electrical performance of a photovoltaic cell at a single instant of time and the results do no imply any past or future performance.

    5.4 This test method requires a linear reference cell calibrated with respect to an appropriate reference spectral irradiance distribution, such as Tables E490, or G173. It is the responsibility of the user to determine which reference spectral irradiance distribution is appropriate for a particular application.

    1. Scope

    1.1 This test method covers the determination of the electrical performance of a photovoltaic cell under simulated sunlight by means of a calibrated reference cell procedure.

    1.2 Electrical performance measurements are reported with respect to a select set of standard reporting conditions (SRC) (see Table 1) or to user-specified reporting conditions. In either case, the chosen reporting conditions are abbreviated as RC.

    1.2.1 The RC include the cell temperature, the total irradiance, and the reference spectral irradiance distribution.

    1.3 This test method is applicable only to photovoltaic cells with a linear short-circuit current versus total irradiance response up to and including the total irradiance used in the measurement.

    1.4 The cell parameters determined by this test method apply only at the time of test, and imply no past or future performance level.

    1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

    1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

    1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    E490 Standard Solar Constant and Zero Air Mass Solar Spectral Irradiance Tables

    E491 Practice for Solar Simulation for Thermal Balance Testing of Spacecraft

    E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method

    E772 Terminology of Solar Energy Conversion

    E927 Classification for Solar Simulators for Electrical Performance Testing of Photovoltaic Devices

    E973 Test Method for Determination of the Spectral Mismatch Parameter Between a Photovoltaic Device and a Photovoltaic Reference Cell

    E1125 Test Method for Calibration of Primary Non-Concentrator Terrestrial Photovoltaic Reference Cells Using a Tabular Spectrum

    E1362 Test Methods for Calibration of Non-Concentrator Photovoltaic Non-Primary Reference Cells

    G173 Tables for Reference Solar Spectral Irradiances: Direct Normal and Hemispherical on 37 Tilted Surface

    ICS Code

    ICS Number Code 27.160 (Solar energy engineering)

    UNSPSC Code

    UNSPSC Code 32111701(Photovoltaic cells)

    Referencing This Standard
    Link Here
    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/E0948-16R20

    Citation Format

    ASTM E948-16(2020), Standard Test Method for Electrical Performance of Photovoltaic Cells Using Reference Cells Under Simulated Sunlight, ASTM International, West Conshohocken, PA, 2020, www.astm.org

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