ASTM E927 - 19

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

    Active Standard ASTM E927 | Developed by Subcommittee: E44.09

    Book of Standards Volume: 12.02


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    Abstract

    This specification provides the performance requirements and parameters used for classifying both pulsed and steady state solar simulators intended for indoor testing of photovoltaic devices (solar cells or modules), according to their spectral match to a reference spectral irradiance, non-uniformity of spatial irradiance, and temporal instability of irradiance. The classification of a solar simulator is based on the size of the test plane, and does not provide any information about electrical measurement errors that are related to photovoltaic performance measurements obtained with a classified solar simulator.

    This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

    1. Scope

    1.1 This classification provides means for assessing the suitability of solar simulators for indoor electrical performance testing of photovoltaic cells and modules, that is, for measurement current-voltage curves under artificial illumination.

    1.2 Solar simulators are classified according to their ability to reproduce a reference spectral irradiance distribution (see Tables G138 and E490), the uniformity of total irradiance across the test plane, and the stability of total irradiance over time.

    1.3 A solar simulator usually consists of three major components: (1) light source(s) and associated power supplies; (2) optics and filters required to modify the irradiance at the test plane; and (3) controls to operate the simulator, including irradiance adjustment.

    1.4 This classification is applicable to both pulsed and steady-state solar simulators.

    1.5 Many solar simulators also include integral data acquisition systems for photovoltaic performance testing; these data acquisition systems are outside of the scope of this classification.

    1.6 Light sources for weathering, durability, or conditioning of photovoltaic devices are outside of the scope of this classification.

    1.7 This classification is not applicable to solar simulators intended for testing photovoltaic concentrator devices.

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

    1.9 The following precautionary caveat pertains only to the hazards portion, Section 6, of this classification. 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.

    1.10 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

    E772 Terminology of Solar Energy Conversion

    E948 Test Method for Electrical Performance of Photovoltaic Cells Using Reference Cells Under Simulated Sunlight

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

    E1036 Test Methods for Electrical Performance of Nonconcentrator Terrestrial Photovoltaic Modules and Arrays Using Reference Cells

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

    E2236 Test Methods for Measurement of Electrical Performance and Spectral Response of Nonconcentrator Multijunction Photovoltaic Cells and Modules

    G113 Terminology Relating to Natural and Artificial Weathering Tests of Nonmetallic Materials

    G138 Test Method for Calibration of a Spectroradiometer Using a Standard Source of Irradiance

    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/E0927-19

    Citation Format

    ASTM E927-19, Standard Classification for Solar Simulators for Electrical Performance Testing of Photovoltaic Devices, ASTM International, West Conshohocken, PA, 2019, www.astm.org

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