IEC/TS 62257-1

Recommendations for small renewable energy and hybrid systems for rural electrification - Part 1: General introduction to rural electrification

Introduces general considerations on rural electrification and the IEC 62257 series. This series intends to provide to different players involved in rural electrification projects specifications for the setting up of low voltage renewable energy and hybrid systems.

Priporočila za sisteme malih obnovljivih virov energije in hibridne sisteme za elektrifikacijo podeželja – 1. del: Splošni uvod v elektrifikacijo podeželja

General Information

• Status: Not Published
• ICS: 27.160 - Solar energy engineering
• ICS: 27.180 - Wind turbine energy systems
• Technical Committee: TC 82 - Solar photovoltaic energy systems
• Current Stage: PPUB - Publication issued
• Start Date: 11-Aug-2003
• Ref Project: SIST-TS IEC/TS 62257-1:2006 - Recommendations for small renewable energy and hybrid systems for rural electrification - Part 1: General introduction to rural electrification

Standards Content (Sample)

SLOVENSKI SIST-TS IEC/TS 62257-1:2006

STANDARD
maj 2006
Priporočila za sisteme malih obnovljivih virov energije in hibridne sisteme za
elektrifikacijo podeželja – 1. del: Splošni uvod v elektrifikacijo podeželja
Recommendations for small renewable energy and hybrid systems for rural
electrification – Part 1: General introduction to rural electrification
ICS 27.190 Referenčna številka
SIST-TS IEC/TS 62257-1:2006(en)
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

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TECHNICAL IEC
SPECIFICATION
TS 62257-1
First edition
2003-08
Recommendations for small renewable energy
and hybrid systems for rural electrification –
Part 1:
General introduction to rural electrification
Recommandations pour petits systèmes d'énergie
renouvelable et pour systèmes hybrides destinés
à l'électrification rurale –
Partie 1:
Introduction générale à l'électrification rurale
 IEC 2003  Copyright - all rights reserved
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 the publisher.
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International Electrotechnical Commission
Международная Электротехническая Комиссия
For price, see current catalogue

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– 2 – TS 62257-1  IEC:2003(E)
CONTENTS
FOREWORD . 3
INTRODUCTION .5
1 Scope and overview . 6
2 Normative references. 6
3 Terms, definitions and abbreviations . 7
4 Rural electrification: which solution to choose?. 8
5 Decentralized electrification requires a range of systems . 9
Figure 1 – Example of electrification progress following a master plan methodology. 9
Table 1 – Some advantages and disadvantages of the proposed single and multiple
user systems.10

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TS 62257-1  IEC:2003(E) – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________
RECOMMENDATIONS FOR SMALL RENEWABLE ENERGY
AND HYBRID SYSTEMS FOR RURAL ELECTRIFICATION –
Part 1: General introduction to rural electrification
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, 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 provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
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.
The main task of IEC technical committees is to prepare International Standards. In
exceptional circumstances, a technical committee may propose the publication of a technical
specification when
• the required support cannot be obtained for the publication of an International Standard,
despite repeated efforts, or
• the subject is still under technical development or where, for any other reason, there is the
future but no immediate possibility of an agreement on an International Standard.
Technical specifications are subject to review within three years of publication to decide
whether they can be transformed into International Standards.
IEC 62257-1, which is a technical specification, has been prepared by IEC technical committee
82: Solar photovoltaic energy systems. It was developed in cooperation with other IEC
technical committees and subcommittees dealing with renewable energies and related matters,
namely technical committee 21 ("Secondary cells and batteries"), subcommittee 21A
("Secondary cells and batteries containing alkaline or other non-acid electrolytes"), technical
committee 64 ("Electrical installations and protection against electric shock"), technical
committee 88 ("Wind turbines"), and others.

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– 4 – TS 62257-1  IEC:2003(E)
This document is based on IEC/PAS 62111; it cancels and replaces the relevant parts of
IEC/PAS 62111.
This technical specification shall be used in conjunction with the other documents of the
IEC 62257 series.
The text of this technical specification is based on the following documents:
Enquiry draft Report on voting
82/300/DTS 82/318/RVC
Full information on the voting for the approval of this technical specification 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.
The committee has decided that the contents of this publication will remain unchanged until 2006.
At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
A bilingual edition of this publication may be issued at a later date.

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TS 62257-1  IEC:2003(E) – 5 –
INTRODUCTION
Rural electrification is one of the predominant policy actions designed to increase the well-
being of rural populations together with improved healthcare, education, personal advancement
and economical development.
The present document introduces general considerations on rural electrification and the
IEC 62257 series. This series intends to provide to different players involved in rural
electrification projects documents for the setting up of low voltage renewable energy and
hybrid systems.

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– 6 – TS 62257-1  IEC:2003(E)
RECOMMENDATIONS FOR SMALL RENEWABLE ENERGY
AND HYBRID SYSTEMS FOR RURAL ELECTRIFICATION –
Part 1: General introduction to rural electrification
1 Scope and overview
Rural electrification is one of the predominant policy actions designed to increase the well
being of rural populations together with improved healthcare, education, personal advancement
and economical development. Rural electrification can be completed through connection to a
national or regional electrification grid. This document applies to cases where the grid is too far
away (too costly) or the individual demand centres are too small to make grid access
economic, where autonomous power systems may be used to supply these services.
This series of documents intends to provide to different players involved in rural electrification
projects (such as project developers, project implementers, installers, etc.) documents for the
setting up of renewable energy and hybrid systems with AC voltage below 500 V, DC voltage
below 50 V and power below 50 kVA.
These documents are recommendations:
a) to choose the right system for the right place,
b) to design the system,
c) to operate and maintain the system.
These documents are focused only on rural electrification concentrating on but not specific to
developing countries. They must not be considered as all inclusive to rural electrification. The
documents try to promote the use of renewable energies in rural electrification; they do not
deal with clean mechanisms development at this time (CO emission, carbon credit, etc.)
2
Further developments in this field could be introduced in future steps.
This consistent set of documents is best considered as a whole with different parts
corresponding to items for safety, sustainability of systems and at the lowest life cycle cost as
possible. One of the main objectives is to provide the minimum sufficient requirements,
relevant to the field of application that is: small renewable energy and hybrid off-grid systems.
2 Normative references
The following referenced documents are indispensable for the application of this document. For
dated references, only the edition cited applies. For undated references, the latest edition of
the referenced document (including any amendments) applies.
IEC 62257-2, Recommendations for small renewable energy and hybrid systems for rural
1
electrification – Part 2: From requirements of users to a range of electrification sys
...