ASTM-E2848 2011

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E2848-11 Standard Test Method for Reporting Photovoltaic Non-Concentrator System Performance

Published By	Publication Date	Number of Pages
ASTM	2011	10

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Category: ASTM

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Description

ASTM E2848-11

Historical Standard: Standard Test Method for Reporting Photovoltaic Non-Concentrator System Performance

ASTM E2848

Scope

1.1 This test method provides measurement and analysis procedures for determining the capacity of a specific photovoltaic system built in a particular place and in operation under natural sunlight.

1.2 This test method is used for the following purposes:

1.2.1 acceptance testing of newly installed photovoltaic systems,

1.2.2 reporting of dc or ac system performance, and

1.2.3 monitoring of photovoltaic system performance.

1.3 This test method should not be used for:

1.3.1 testing of individual photovoltaic modules for comparison to nameplate power ratings,

1.3.2 testing of individual photovoltaic modules or systems for comparison to other photovoltaic modules or systems,

1.3.3 testing of photovoltaic systems for the purpose of comparing the performance of photovoltaic systems located in different places.

1.4 In this test method, photovoltaic system power is reported with respect to a set of reporting conditions (RC) including: solar irradiance in the plane of the modules, ambient temperature, and wind speed (see Section 6). Measurements under a variety of reporting conditions are allowed to facilitate testing and comparison of results.

1.5 This test method assumes that the solar cell temperature is directly influenced by ambient temperature and wind speed; if not the regression results may be less meaningful.

1.6 This test method is not applicable to concentrator photovoltaic systems; as an alternative, Test Method E2527 should be considered for such systems.

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

1.8 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 and health practices and determine the applicability of regulatory limitations prior to use.

Keywords

performance; photovoltaics; reporting; systems

ICS Code

ICS Number Code n/a

DOI: 10.1520/E2848-11

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents
2	Terminology Summary of Test Method Significance and Use
3	Reporting Conditions Apparatus
4	Procedure Calculation of Results
5	FIG. 1
6	Report Precision and Bias
7	Keywords A1. USE OF CALIBRATED PHOTOVOLTAIC REFERENCE CELLS AS IRRADIANCE MEASUREMENT EQUIPMENT A1.1 A1.2 Pyranometer Characteristics A1.3 Reference Cell Characteristics
8	A1.4 The Reference Cell Method A1.5 In-situ Regression Procedure A1.6 Reference Cell Irradiance Measurement Error Analysis
9	A1.7 Reference Cell Selection A1.8 Procedure A2. DETERMINATION OF SPECTRAL IRRADIANCES FOR REFERENCE CONDITIONS A2.1 A2.2 A2.3 A2.4 A2.5 A2.6 Software Model Calculations
10	A2.7 Spectroradiometric Measurements A2.8 A2.9

Additional information

Standard Title	E2848-11 Standard Test Method for Reporting Photovoltaic Non-Concentrator System Performance
Published Code	ASTM
Publication Date	2011
Pages Count	10