IEC TS 63276:2024

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
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this Technical Specification is English.

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