IEC TS 63276:2024
(Main)Guidelines for the hosting capacity evaluation of distribution networks for distributed energy resources
Guidelines for the hosting capacity evaluation of distribution networks for distributed energy resources
IEC TS 63276:2024 specifies methods for the evaluation of the maximum export capacity of distributed energy resources (DER) that distribution networks can accommodate. It provides guidance on the technical constraints that should be considered in evaluating hosting capacity, information required to be collected to undertake a hosting capacity evaluation, and evaluation methods. This document is applicable to AC distribution networks operating at a nominal frequency of 50 Hz or 60 Hz.
This document does not specify allowable values of system parameters that can be impacted by the addition of DER on a distribution network, such as maximum or minimum voltage, maximum current, etc. These values are to be determined by the user, from international or national standards, local regulations or the like, and used as an input to the evaluation methods described in this document. This document is mainly used by distribution system operators (DSO) and other organizations with corresponding qualifications and capabilities. The evaluation results can serve the DER investors, DSO, energy sector regulators and other stakeholders as a decision-making basis.
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IEC TS 63276 ®
Edition 1.0 2024-09
TECHNICAL
SPECIFICATION
colour
inside
Guidelines for the hosting capacity evaluation of distribution networks for
distributed energy resources
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IEC TS 63276 ®
Edition 1.0 2024-09
TECHNICAL
SPECIFICATION
colour
inside
Guidelines for the hosting capacity evaluation of distribution networks for
distributed energy resources
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.240.01 ISBN 978-2-8322-9608-0
– 2 – IEC TS 63276:2024 © IEC 2024
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Basic requirements of the evaluation . 8
4.1 Evaluation principle . 8
4.2 Evaluation scope and objects . 9
4.3 Impact factors . 9
4.3.1 Structure of distribution network . 9
4.3.2 Composition of existing power generation . 9
4.3.3 DER under construction or approved . 9
4.3.4 Load characteristics . 9
5 Evaluation contents . 9
5.1 Thermal rating . 9
5.2 Short-circuit current . 10
5.3 Voltage deviation . 11
5.4 Harmonic voltage . 11
5.5 Voltage unbalance . 11
5.6 Protection configuration . 12
6 Data preparation . 12
6.1 Data preparation . 12
6.1.1 Distribution network . 12
6.1.2 Equipment parameter . 12
6.1.3 Operating state . 13
6.1.4 Operating limit . 13
6.2 Data processing . 13
7 Evaluation method and process . 13
8 Evaluation results . 14
Annex A (informative) Sources and uses of data needed for hosting capacity
evaluation . 15
Annex B (normative) Evaluation process . 17
Annex C (normative) Evaluation grade . 18
Annex D (informative) Example of evaluation . 19
D.1 Basic information of the example . 19
D.2 Calculation of hosting capacity for DER . 20
Bibliography . 30
Figure B.1 – Evaluation process . 17
Figure D.1 – Single-line diagram of the example . 19
Figure D.2 – Operation data of typical day . 20
Figure D.3 – Result graph of hosting capacity evaluation . 29
Table A.1 – Data needed for hosting capacity evaluation . 15
Table C.1 – Evaluation grade . 18
Table D.1 – Sheet of thermal rating evaluation. 20
Table D.2 – Sheet of short-circuit current check . 21
Table D.3 – Sheet of voltage deviation check . 22
Table D.4 – Sheet of harmonic voltage check . 23
Table D.5 – Sheet of thermal rating evaluation (after adjustment) . 24
Table D.6 – Sheet of short-circuit current check (after adjustment) . 25
Table D.7 – Sheet of voltage deviation check (after adjustment) . 26
Table D.8 – Sheet of harmonic voltage check . 27
Table D.9 – Evaluation grades of the hosting capacity of distribution network for DER . 28
– 4 – IEC TS 63276:2024 © IEC 2024
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
GUIDELINES FOR THE HOSTING CAPACITY EVALUATION OF
DISTRIBUTION NETWORKS FOR DISTRIBUTED ENERGY RESOURCES
FOREWORD
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IEC TS 63276 has been prepared by Subcommittee 8B: Decentralized electrical energy
systems, of IEC Technical Committee 8: System aspects of electrical energy supply. It is a
Technical Specification.
The text of this Technical Specification is based on the following documents:
Draft Report on voting
8B/212/DTS 8B/225/RVDTS
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the above table.
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