IEC 62670-1:2013

Photovoltaic concentrators (CPV) - Performance testing - Part 1: Standard conditions

IEC 62670-1:2013 defines standard conditions for assessing the power produced by CPV systems and their photovoltaic subcomponents. The object is to define a consistent set of conditions so that power ratings noted on data sheets and nameplates will have a standard basis. Two sets of conditions are included to characterize:
a) operating conditions, and
b) test conditions.

Concentrateurs photovoltaïques (CPV) - Essai de performances - Partie 1: Conditions normales

La CEI 62670-1:2013 définit les conditions normales pour déterminer la puissance produite par les systèmes photovoltaïques à concentration et leurs sous-composants photovoltaïques. L'objet est de définir un ensemble cohérent de conditions, de sorte que les rapports de puissance notés sur les fiches techniques et les plaques signalétiques aient une base de référence. Deux ensembles de conditions sont inclus pour caractériser:
a) les conditions de fonctionnement, et
b) les conditions d'essais.

General Information

• Status: Published
• Publication Date: 24-Sep-2013
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 27.160 - Solar energy engineering
• Technical Committee: TC 82 - Solar photovoltaic energy systems
• Drafting Committee: WG 7 - TC 82/WG 7
• Current Stage: PPUB - Publication issued
• Start Date: 15-Jan-2014
• Completion Date: 25-Sep-2013

Standards Content (Sample)

IEC 62670-1 ®
Edition 1.0 2013-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Photovoltaic concentrators (CPV) – Performance testing –
Part 1: Standard conditions
Concentrateurs photovoltaïques (CPV) – Essai de performances –
Partie 1: Conditions normales
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester.
If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication,
please contact the address below or your local IEC member National Committee for further information.

Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite ni
utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie et les
microfilms, sans l'accord écrit de la CEI ou du Comité national de la CEI du pays du demandeur.
Si vous avez des questions sur le copyright de la CEI ou si vous désirez obtenir des droits supplémentaires sur cette
publication, utilisez les coordonnées ci-après ou contactez le Comité national de la CEI de votre pays de résidence.

IEC Central Office Tel.: [phone]
3, rue de Varembé Fax: [phone]
CH-1211 Geneva 20 [e-mail]
Switzerland www.iec.ch
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.

Useful links:
IEC publications search - www.iec.ch/searchpub Electropedia - www.electropedia.org
The advanced search enables you to find IEC publications The world's leading online dictionary of electronic and
by a variety of criteria (reference number, text, technical electrical terms containing more than 30 000 terms and
committee,…). definitions in English and French, with equivalent terms in
It also gives information on projects, replaced and additional languages. Also known as the International
withdrawn publications. Electrotechnical Vocabulary (IEV) on-line.

IEC Just Published - webstore.iec.ch/justpublished Customer Service Centre - webstore.iec.ch/csc
Stay up to date on all new IEC publications. Just Published If you wish to give us your feedback on this publication
details all new publications released. Available on-line and or need further assistance, please contact the
also once a month by email. Customer Service Centre: [e-mail].

A propos de la CEI
La Commission Electrotechnique Internationale (CEI) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

A propos des publications CEI
Le contenu technique des publications de la CEI est constamment revu. Veuillez vous assurer que vous possédez
l’édition la plus récente, un corrigendum ou amendement peut avoir été publié.

Liens utiles:
Recherche de publications CEI - www.iec.ch/searchpub Electropedia - www.electropedia.org
La recherche avancée vous permet de trouver des Le premier dictionnaire en ligne au monde de termes
publications CEI en utilisant différents critères (numéro de électroniques et électriques. Il contient plus de 30 000
référence, texte, comité d’études,…). termes et définitions en anglais et en français, ainsi que
Elle donne aussi des informations sur les projets et les les termes équivalents dans les langues additionnelles.
publications remplacées ou retirées. Egalement appelé Vocabulaire Electrotechnique
International (VEI) en ligne.
Just Published CEI - webstore.iec.ch/justpublished
Service Clients - webstore.iec.ch/csc
Restez informé sur les nouvelles publications de la CEI.
Just Published détaille les nouvelles publications parues. Si vous désirez nous donner des commentaires sur
Disponible en ligne et aussi une fois par mois par email. cette publication ou si vous avez des questions
contactez-nous: [e-mail].
IEC 62670-1 ®
Edition 1.0 2013-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Photovoltaic concentrators (CPV) – Performance testing –

Part 1: Standard conditions
Concentrateurs photovoltaïques (CPV) – Essai de performances –

Partie 1: Conditions normales
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX F
ICS 27.160 ISBN 978-2-8322-1120-5

– 2 – 62670-1 © IEC:2013
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Standard conditions . 6

62670-1 © IEC:2013 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
PHOTOVOLTAIC CONCENTRATORS (CPV) –
PERFORMANCE TESTING –
Part 1: Standard conditions
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 62670-1 has been prepared by IEC technical committee 82: Solar
photovoltaic energy systems.
The text of this standard is based on the following documents:
CDV Report on voting
82/734/CDV 82/758/RVC
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.

– 4 – 62670-1 © IEC:2013
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site 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.
A list of all parts in the IEC 62670 series, published under the general title Photovoltaic
concentrators (CPV) – Performance testing, can be found on the IEC website.

62670-1 © IEC:2013 – 5 –
INTRODUCTION
This International Standard series establishes IEC requirements for evaluating concentrator
PV performance. It is written to be applicable to all concentrator PV technologies that have a
geometric concentration ratio greater than 3X and require tracking.
Included in the IEC 62670 series of standards are definitions of the standard conditions and
methods to be used for assessing CPV performance.
IEC 62670-1 defines a standard set of conditions so that power ratings noted on data sheets
and nameplates will have a standard basis.
IEC 62670-2 describes an on-sun, measurement-based method for determining the energy
output and performance ratio for CPV arrays, assemblies and power plants.
IEC 62670-3 describes methods for providing a CPV power assessment under the sets of
standard conditions, enabling assessments both indoors and outdoors.

– 6 – 62670-1 © IEC:2013
PHOTOVOLTAIC CONCENTRATORS (CPV) –
PERFORMANCE TESTING –
Part 1: Standard conditions
1 Scope
This part of IEC 62670 defines standard conditions for assessing the power produced by CPV
systems and their photovoltaic subcomponents. The object of this part of IEC 62670 is to
define a consistent set of conditions so that power ratings noted on data sheets and
nameplates will have a standard basis. Two sets of conditions are included to characterize:
a) operating conditions that represent on-sun performance relative to commonly measured
meteorological conditions, and
b) test conditions that represent performance when the module is in a readily reproducible
environment.
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.
IEC 60904-3, Photovoltaic devices – Part 3: Measurement principles for terrestrial
photovoltaic (PV) solar devices with reference spectral irradiance data
3 Standard conditions
Any power rating shall indicate the standard conditions used.
a) CSOC (concentrator standard operating conditions)
–2
– Irradiance: 900 W·m direct normal irradiance.
– Temperature: 20 °C ambient temperature.
–1
– Wind speed: 2 m·s .
– Spectrum: Direct normal AM1.5 spectral irradiance distribution consistent with
conditions described in IEC 60904-3.
b) CSTC (concentrator standard test conditions)
–2
– Irradiance: 1 000 W·m direct normal irradiance.
– Temperature: 25 °C cell temperature.
– Spectrum: Direct normal AM1.5 spectral irradiance distribution consistent with
conditions described in IEC 60904-3.
DNI (direct normal irradiance) is to be corrected for angle of incidence for devices using
single-axis tracking.
_____________
– 8 – 62670-1 © CEI:2013
SOMMAIRE
AVANT-PROPOS . 9
INTRODUCTION . 11
1 Domaine d’application . 12
2 Références normatives . 12
3 Conditions normales . 12

62670-1 © CEI:2013 – 9 –
COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
____________
CONCENTRATEURS PHOTOVOLTAÏQUES (CPV) –
ESSAI DE PERFORMANCES –
Partie 1: Conditions normales
AVANT-PROPOS
1) La Commission Electrotechnique Internationale (CEI) est une organisation mondiale de normalisation
composée de l'ensemble des comités électrote
...