SIST EN 61853-2:2017

Photovoltaic (PV) module performance testing and energy rating - Part 2: Spectral response, incidence angle and module operating temperature measurements

The IEC 61853 series establishes IEC requirements for evaluating PV module performance
based on power (watts), energy (watt-hours) and performance ratio (PR). It is written to be
applicable to all PV technologies, but may not work well for any technology where the module
performance changes with time (e.g. modules change their behaviour with light or thermal
exposure), or which experience significant non-linearities in any of their characteristics used
for the modelling.
The purpose of this part of IEC 61853 is to define measurement procedures for measuring the
effects of angle of incidence of the irradiance on the output power of the device, to determine
the operating temperature of a module for a given set of ambient and mounting conditions and
measure spectral responsivity of the module. A second purpose is to provide a characteristic
set of parameters which will be useful for detailed energy predictions. The described
measurements are required as inputs into the module energy rating procedure described in
IEC 61853-3.

Prüfung des Leistungsverhaltens von photovoltaischen (PV-)Modulen und Energiebemessung - Teil 2: Messung der spektralen Empfindlichkeit, des Einfallswinkels und der Modul-Betriebstemperatur

Essais de performance et caractéristiques assignées d'énergie des modules photovoltaïques (PV) - Partie 2: Mesures de réponse spectrale, d'angle d'incidence et de température de fonctionnement des modules

L'IEC 61853-2:2016 a pour objet de définir des méthodes de mesure des effets de l'angle d'incidence de l'éclairement sur la puissance de sortie du dispositif, de déterminer la température de fonctionnement d'un module pour un ensemble donné de conditions ambiantes et de montage, et de mesurer la réponse spectrale du module. Elle a également pour objet de fournir un ensemble caractéristique de paramètres utiles pour des prévisions d'énergie détaillées. Les mesurages décrits sont exigés comme éléments d'entrée de la procédure de détermination des caractéristiques assignées d'énergie des modules décrite dans l'IEC 61853-3.

Preskušanje zmogljivosti in energijske učinkovitosti fotonapetostnega (PV) modula - 2. del: Meritve spektralnega odziva, vpadnega kota in obratovalne temperature modula

Skupina standardov IEC 61853 določa zahteve IEC za ocenjevanje zmogljivosti fotonapetostnega (PV) modula na podlagi moči (vati), energije (vatne ure) in razmerja zmogljivosti (PR). Namenjen je za uporabo pri vseh fotonapetostnih tehnologijah, vendar morda ne ustreza tehnologijam, pri katerih se zmogljivost modula sčasoma spremeni (npr. moduli spremenijo obnašanje pri izpostavljenosti svetlobi ali toploti) ali pri tistih, ki imajo precejšnjo nelinearnost v katerih koli lastnostih, ki se uporabljajo za modeliranje.
Namen tega dela standarda IEC 61853 je opredeliti merilne postopke za merjenje učinkov vpadnega kota sevanja na izhodno moč naprave, določiti obratovalno temperaturo modula za podani nabor okoljskih in namestitvenih pogojev ter izmeriti spektralni odziv modula. Drugi namen je zagotavljanje značilnega nabora parametrov, ki bodo uporabni za podrobne napovedi glede energije. Opisane meritve so potrebne kot vnosi pri postopku energetske ocene modula, opisanega v standardu IEC 61853-3.

General Information

• Status: Published
• Publication Date: 16-Jan-2017
• ICS: 27.015 - Energy efficiency. Energy conservation in general
• ICS: 27.160 - Solar energy engineering
• Technical Committee: PVS - Solar photovoltaic energy systems
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 11-Jan-2017
• Due Date: 18-Mar-2017
• Completion Date: 17-Jan-2017
• Ref Project: EN 61853-2:2016 - Photovoltaic (PV) module performance testing and energy rating - Part 2: Spectral responsivity, incidence angle and module operating temperature measurements

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 61853-2:2017
01-februar-2017
3UHVNXãDQMH]PRJOMLYRVWLLQHQHUJLMVNHXþLQNRYLWRVWLIRWRQDSHWRVWQHJD39
PRGXODGHO0HULWYHVSHNWUDOQHJDRG]LYDYSDGQHJDNRWDLQREUDWRYDOQH
WHPSHUDWXUHPRGXOD
Photovoltaic (PV) module performance testing and energy rating - Part 2: Spectral
response, incidence angle and module operating temperature measurements
Prüfung des Leistungsverhaltens von photovoltaischen (PV-)Modulen und
Energiebemessung - Teil 2: Messung der spektralen Empfindlichkeit, des Einfallswinkels
und der Modul-Betriebstemperatur
Essais de performance et caractéristiques assignées d'énergie des modules
photovoltaïques (PV) - Partie 2: Mesures de réponse spectrale, d'angle d'incidence et de
température de fonctionnement des modules
Ta slovenski standard je istoveten z: EN 61853-2:2016
ICS:
27.015 (QHUJLMVNDXþLQNRYLWRVW Energy efficiency. Energy
2KUDQMDQMHHQHUJLMHQD conservation in general
VSORãQR
27.160 6RQþQDHQHUJLMD Solar energy engineering
SIST EN 61853-2:2017 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 61853-2:2017

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SIST EN 61853-2:2017


EUROPEAN STANDARD EN 61853-2

NORME EUROPÉENNE

EUROPÄISCHE NORM
December 2016
ICS 27.160

English Version
Photovoltaic (PV) module performance testing and energy rating -

Part 2: Spectral responsivity, incidence angle and module
operating temperature measurements
(IEC 61853-2:2016)
Essais de performance et caractéristiques assignées Prüfung des Leistungsverhaltens von photovoltaischen
d'énergie des modules photovoltaïques (PV) - Partie 2: (PV-)Modulen und Energiebemessung - Teil 2: Messung
Mesurages de réponse spectrale, d'angle d'incidence et de der spektralen Empfindlichkeit, des Einfallswinkels und der
température de fonctionnement des modules Modul-Betriebstemperatur
(IEC 61853-2:2016) (IEC 61853-2:2016)
This European Standard was approved by CENELEC on 2016-10-11. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.


European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2016 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. EN 61853-2:2016 E

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SIST EN 61853-2:2017
EN 61853-2:2016
European foreword
The text of document 82/1133/FDIS, future edition 1 of IEC 61853-2, prepared by IEC/TC 82 "Solar
photovoltaic energy systems" was submitted to the IEC-CENELEC parallel vote and approved by
CENELEC as EN 61853-2:2016.
The following dates are fixed:
(dop) 2017-07-11
• latest date by which the document has to be implemented at
national level by publication of an identical national
standard or by endorsement
(dow) 2019-10-11
• latest date by which the national standards conflicting with
the document have to be withdrawn

Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
Endorsement notice
The text of the International Standard IEC 61853-2:2016 was approved by CENELEC as a European
Standard without any modification.
2

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SIST EN 61853-2:2017
EN 61853-2:2016
Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod),
the relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is
available here: www.cenelec.eu.

Publication Year Title EN/HD Year
IEC 60410 -  Sampling plans and procedures for - -
inspection by attributes
IEC 60891 -  Photovoltaic devices - Procedures for EN 60891 -
temperature and irradiance corrections to
measured I-V characteristics
IEC 60904-1 -  Photovoltaic devices - EN 60904-1 -
Part 1: Measurement of photovoltaic
current-voltage characteristics
IEC 60904-2 -  Photovoltaic devices - EN 60904-2 -
Part 2: Requirements for photovoltaic
reference devices
IEC 60904-5 -  Photovoltaic devices - EN 60904-5 -
Part 5: Determination of the equivalent cell
temperature (ECT) of photovoltaic (PV)
devices by the open-circuit voltage method
IEC 60904-8 -  Photovoltaic devices - EN 60904-8 -
Part 8: Measurement of spectral
responsivity of a photovoltaic (PV) device
IEC 60904-9 -  Photovoltaic devices - EN 60904-9 -
Part 9: Solar simulator performance
requirements
IEC 60904-10 -  Photovoltaic devices - EN 60904-10 -
Part 10: Methods of linearity measurement
IEC 61215 series Terrestrial photovoltaic (PV) modules - EN 61215 series
Design qualification and type approval
IEC 61215-2 -  Terrestrial photovoltaic (PV) modules - EN 61215-2 -
Design qualification and type approval -
Part 2: Test procedures
IEC 61646 -  Thin-film terrestrial photovoltaic (PV) EN 61646 -
modules - Design qualification and type
approval
3

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SIST EN 61853-2:2017
EN 61853-2:2016
Publication Year Title EN/HD Year
IEC 61853-1 2011 Photovoltaic (PV) module performance EN 61853-1 2011
testing and energy rating -
Part 1: Irradiance and temperature
performance measurements and power
rating
ISO 9059 -  Solar energy - Calibration of field - -
pyrheliometers by comparison to a
reference pyrheliometer

4

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SIST EN 61853-2:2017



IEC 61853-2

®


Edition 1.0 2016-09




INTERNATIONAL



STANDARD




NORME



INTERNATIONALE











Photovoltaic (PV) module performance testing and energy rating –

Part 2: Spectral responsivity, incidence angle and module operating temperature

measurements




Essais de performance et caractéristiques assignées d'énergie des modules

photovoltaïques (PV) –


Partie 2: Mesurages de réponse spectrale, d'angle d'incidence et de température

de fonctionnement des modules












INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE


INTERNATIONALE




ICS 27.160 ISBN 978-2-8322-3584-3



Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

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SIST EN 61853-2:2017
– 2 – IEC 61853-2:2016 © IEC 2016
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 7
2 Normative references. 7
3 Sampling . 8
4 Testing . 8
5 Report . 9
6 Procedure for spectral responsivity measurement . 10
7 Procedure for the measurement of incidence angle effects . 10
7.1 Purpose . 10
7.2 Indoor test method . 11
7.2.1 General . 11
7.2.2 Apparatus . 11
7.2.3 Set-up procedure . 12
7.2.4 Measurement procedure . 12
7.3 Outdoor test method . 13
7.3.1 General . 13
7.3.2 Apparatus . 13
7.3.3 Set-up procedure . 14
7.3.4 Measurement procedure . 15
7.4 Interpolation of angular transmission τ(θ) . 16
8 Methodology for determining coefficients for calculating module operating
temperature . 17
8.1 General . 17
8.2 Testing and data processing . 17
8.3 Apparatus . 17
8.4 Test module mounting . 18
8.5 Procedure . 18
8.6 Evaluation . 19

Figure 1 – Overview of the testing cycle to be carried out in IEC 61853-2 . 9
Figure 2 – Positions for measuring the temperature of the test module behind the cells . 13

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SIST EN 61853-2:2017
IEC 61853-2:2016 © IEC 2016 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

PHOTOVOLTAIC (PV) MODULE
PERFORMANCE TESTING AND ENERGY RATING –

Part 2: Spectral responsivity, incidence angle and
module operating temperature measurements

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61853-2 has been prepared by IEC technical committee 82: Solar
photovoltaic energy systems.
The text of this standard is based on the following documents:
FDIS Report on voting
82/1133/FDIS 82/1156/RVD

Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

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SIST EN 61853-2:2017
– 4 – IEC 61853-2:2016 © IEC 2016
A list of all parts in the IEC 61853 series, published under the general title Photovoltaic (PV)
module performance testing and energy rating, can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC website under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

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SIST EN 61853-2:2017
IEC 61853-2:2016 © IEC 2016 – 5 –
INTRODUCTION
Photovoltaic (PV) modules are typically rated at standard test conditions (STC) of 25 °C cell
–2
temperature, 1 000 W⋅m irradiance, and air mass (AM) 1.5 global (G) spectrum. However,
the PV modules in the field operate over a range of temperatures, irradiance, and spectra. To
accurately predict the energy production of the modules under various field conditions, it is
necessary to characterize the modules at a wide range of temperatures, irradiances, angles of
incidence, and spectra.
Recognizing this issue, IEC Technical Committee 82 Working Group 2 (TC 82/WG 2) has
developed an appropriate power and energy rating standard (IEC 61853). The first part of this
four-part standard requires the generation of a 23-element maximum power (P ) matrix at
max
four different temperatures and seven different irradiance levels. The P matrix can be
max
generated using an indoor solar simulator method or outdoor natural sunlight method. The
outdoor test method introduces little/no spectral mismatch error and is much less expensive
than the indoor test method because it avoids the use of very expensive solar simulators.
However, obtaining an accurate and repeatable P matrix using the outdoor method over
max
time (several months or years) would be extremely challenging.
This standard consists of four parts:
• IEC 61853-1: Irradiance and temperature performance measurements and power rating,
which describes requirements for evaluating PV module performance in terms of power
(watts) rating over a range of irradiances and temperatures;
• IEC 61853-2: Spectral responsivity, incidence angle, and module operating temperature
measurements, which describes test procedures for measuring the effect of varying angle
of incidence and sunlight spectra as well as the estimation of module temperature from
irradiance, ambient temperature, and wind speed;
1
• IEC 61853-3 : Energy rating of PV modules, which describes the calculations for PV
module energy (watt-hours) ratings; and
2
• IEC 61853-4 : Standard reference climatic profiles, which describes the standard time
periods and weather conditions that can be used for the energy rating calculations.
Included in the IEC 61853 series of standards are: test methods designed to map module
performance over a wide range of temperature and irradiance conditions (IEC 61853-1); test
methods to determine spectral responsivity, incidence angle effects and the module operating
temperature all as functions of ambient conditions (IEC 61853-2); methods for evaluating
instantaneous and integrated power and energy results including a method for stating these
results in the form of a numerical rating (IEC 61853-3); and definition of reference irradiance
and climatic profiles (IEC 61853-4).
IEC 61853-1 describes requirements for evaluating PV module performance in terms of power
(watts) rating over a range of irradiances and temperatures. IEC 61853-2 describes
procedures for measuring the performance effect of angle of incidence, the estimation of
module temperature from irradiance, ambient temperature and wind speed, and impact of
spectral responsivity on module performance. IEC 61853-3 describes the calculations of PV
module energy (watt-hours) ratings. IEC 61853-4 describes the standard time periods and
weather conditions that can be utilized for calculating energy ratings.

____________
1
 Under preparation: Stage at the time of publication: IEC/ACDV 61853-3:2016.
2
 Under preparation: Stage at the time of publication: IEC/ACDV 61853-4:2016.

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SIST EN 61853-2:2017
– 6 – IEC 61853-2:2016 © IEC 2016
IEC published the first part of the standard in January 2011. This standard specifies the
performance measurements of PV modules at 23 different sets of temperature and irradiance
conditions, using either a solar simulator (indoor) or natural sunlight (outdoor). There are
many possible indoor and outdoor techniques, and this standard allows several of them.
Validation of these techniques for repeatability over time within the same laboratory and for
reproducibility among multiple laboratories is extremely important for the successful
implementation of this standard.

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SIST EN 61853-2:2017
IEC 61853-2:2016 © IEC 2016 – 7 –
PHOTOVOLTAIC (PV) MODULE
PERFORMANCE TESTING AND ENERGY RATING –

Part 2: Spectral responsivity, incidence angle and
module operating temperature measurements



1 Scope
The IEC 61853 series establishes IEC requirements for evaluating PV module performance
based on power (watts), energy (watt-hours) and performance ratio (PR). It is written to be
applicable to all PV technologies, but may not work well for any technology where the module
performance changes with time (e.g. modules change their behaviour with light or thermal
exposure), or which experience significant non-linearities in any of their characteristics used
for the modelling.
The purpose of this part of IEC 61853 is to define measurement procedures for measuring the
effects of angle of incidence of the irradiance on the output power of the device, to determine
the operating temperature of a module for a given set of ambient and mounting conditions and
measure spectral responsivity of the module. A second purpose is to provide a characteristic
set of parameters which will be useful for detailed energy predictions. The described
measurements are required as inputs into the module energy rating procedure described in
IEC 61853-3.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and
are indispensable for its application. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any
amendments) applies.
3
IEC 60410 , Sampling plans and procedures for inspection by attributes
IEC 60891, Photovoltaic devices – Procedures for temperature and irradiance corrections to
measured I-V characteristics
IEC 60904-1, Photovoltaic devices – Part 1: Measurement of photovoltaic current-voltage
characteristics
IEC 60904-2, Photovoltaic devices – Part 2: Requirements for photovoltaic reference devices
IEC 60904-5, Photovoltaic devices – Part 5: Determination of equivalent cell temperature
(ECT) of photovoltaic (PV) devices by the open-circuit voltage method
IEC 60904-8, Photovoltaic devices – Part 8: Measurement of spectral responsivity of a
photovoltaic (PV) device
IEC 60904-9, Photovoltaic devices – Part 9: Solar simulator performance requirements
IEC 60904-10, Photovoltaic devices – Part 10: Methods of linearity measurement
____________
3
 Withdrawn.

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SIST EN 61853-2:2017
– 8 – IEC 61853-2:2016 © IEC 2016
IEC 61215 (all parts), Terrestrial photovoltaic (PV) modules – Design qualification and type
approval
IEC 61215-2, Terrestrial photovoltaic (PV) modules – Design qualification and type approval –
Part 2: Test procedures
IEC 61646, Thin-film terrestrial photovoltaic (PV) modules – Design qualification and type
approval
IEC 61853-1:2011, Photovoltaic (PV) module performance testing and energy rating – Part 1:
Irradiance and temperature performance measurements and power rating
ISO 9059, Solar energy – Calibration of field pyrheliometers by comparison to a reference
pyrheliometer
3 Sampling
For performance qualification testing, three modules shall be selected at random from a
production batch or batches in accordance with the procedure given in IEC 60410. The
modules shall be pre-conditioned in accordance with Clause 4 of this standard to assure the
stability of the power values. One module (or equivalent reference sample) shall be used for
each of the three tests, angle of incidence, spectral responsivity and thermal performance. A
single module may be supplied if the test is to be carried out serially or three modules need to
be supplied if it is to be carried out in parallel.
The modules shall have been manufactured from specified materials and components in
accordance with the relevant drawings and process sheets and shall have been subjected to
the manufacture’s normal inspection, quality control and production acceptance procedures.
The modules shall be complete in every detail and shall be accompanied by the
manufacturer’s handling and final assembly instructions regarding the recommended
installation of any diodes, frames, brackets, etc.
When the DUTs (device under test) are prototypes of a new design and not from production,
this fact shall be noted in the test report (see Clause 5).
4 Testing
One of the modules, or representative samples, shall be subjected to each of the testing
procedures defined in Clauses 6 to 8, i.e. the procedure for spectral responsivity (see
Clause 6), angle of incidence (see Clause 7) and module operating temperature
measurements (see Clause 8). In carrying out the tests, the manufacturer’s handling,
cleaning, mounting and connection instructions shall be observed. This can be the same
module undergoing all tests sequentially or three distinct modules undergoing the
characterisation tests in parallel. It shall be noted in the test report if a single or different
modules have been used.
If the module under test is going to be used with a frame that covers the edges of the
superstrate, then each of the tests shall be performed with a similar frame in place.
Preconditioning – Before beginning the measurements, the device under test shall be
stabilized, as specified in IEC 61215 or IEC 61646.
Figure 1 shows an overview of the testing procedure to be conducted.

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SIST EN 61853-2:2017
IEC 61853-2:2016 © IEC 2016 – 9 –
Preconditioning
Visual inspection
Max power
determination
8 – Determination
6 – Spectral 7 – Angle of
of operating
responsivity incidence
temperature
Visual inspection
Max power
determination

IEC
Figure 1 – Overview of the testing cycle to be carried out in IEC 61853-2
5 Report
Following completion of the procedure, a report of the performance tests, with measured
module characteristics shall be prepared. Each certificate or test report shall include at least
the following information:
a) a title;
b) name and address of the test laboratory and location where the calibration or tests were
carried out;
c) unique identification of the certification or report and of each page;
d) name and address of client, where appropriate;
e) description and identification of the item calibrated or tested;
f) characterization and condition of the calibration or test item;
g) date of receipt of test item and date(s) of calibration or test, where appropriate;
h) identification of calibration or test method used;
i) reference to sampling procedure, where relevant;
j) any deviations from, additions to or exclusions from the calibration or test method, and
any other information relevant to a specific calibration or test, such as environmental

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SIST EN 61853-2:2017
– 10 – IEC 61853-2:2016 © IEC 2016
conditions, including the tilt angle of the module used during the temperature test (see
8.4.1) and limits to the field of view;
k) measurements, examinations and derived results of module incidence angle effects, its
operating temperature and its spectral responsivity. The report should indicate the method
used to deal with the diffuse light component for the measurement of angle of incidence
(see 7.3.4);
l) for non-symmetric optical modules, the tilt and azimuth directions have to be specified in a
drawing;
m) a statement of the estimated uncertainty of the calibration and test result (where relevant);
n) a signature and title, or equivalent identification of the person(s) accepting responsibility
for the content of the certificate or report, and the date of issue;
o) where relevant, a statement to the effect that the results relate only to the items calibrated
or tested;
p) a statement that the certificate or report shall not be reproduced except in full, without the
written approval of the laboratory.
6 Procedure for spectral responsivity measurement
The spectral responsivity of a PV module has an impact on the amount of current produced at
any given spectral irradiance. Normally it is not necessary to measure the spectral
responsivity at all possible values of irradiance and temperature that a module encounters
during outdoor operation. A single measurement should be sufficiently accurate for all
expected operating conditions. The need for this can be verified by checking the linearity of
short circuit conditions measured in IEC 61853-1. Should a non-linearity of I with respect to
sc
irradiance or temperature larger than 3 % be obse
...