IEC 63380-1:2025

IEC 63380-1 ®
Edition 1.0 2025-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Standard interface for connecting charging stations to local energy management
systems –
Part 1: General requirements, use cases and abstract messages

Interface normalisée pour la connexion des bornes de charge aux systèmes
locaux de gestion de l’énergie –
Partie 1 : Exigences générales, cas d’utilisation et messages abstraits
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IEC 63380-1 ®
Edition 1.0 2025-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Standard interface for connecting charging stations to local energy management

systems –
Part 1: General requirements, use cases and abstract messages

Interface normalisée pour la connexion des bornes de charge aux systèmes

locaux de gestion de l’énergie –

Partie 1 : Exigences générales, cas d’utilisation et messages abstraits

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.240.99, 43.120 ISBN 978-2-8327-0343-4

– 2 – IEC 63380-1:2025 © IEC 2025
CONTENTS
FOREWORD . 13
INTRODUCTION . 15
1 Scope . 17
2 Normative references . 17
3 Terms, definitions, and abbreviated terms . 17
3.1 Terms and definitions . 17
3.2 Abbreviated terms. 19
4 Scenarios and user stories . 20
4.1 General . 20
4.2 Stakeholders . 21
4.3 User stories . 21
4.4 Use case actors. 23
4.4.1 General. 23
4.4.2 Charging station . 23
4.4.3 Energy management system (EMS) . 23
4.4.4 Electric vehicle (EV) . 24
4.5 Mapping of user stories to use cases . 24
5 Technical use cases . 25
5.1 Overview . 25
5.1.1 General. 25
5.1.2 Wording . 25
5.1.3 Reading the graphics . 26
5.2 Charging station commissioning and configuration . 26
5.2.1 General. 26
5.2.2 Scenario overview . 26
5.2.3 Scenario implementation requirements . 27
5.2.4 Scenario details . 27
5.2.5 Scenarios and use case functions . 28
5.3 Coordinated EV charging . 29
5.3.1 General. 29
5.3.2 Scenario overview . 30
5.3.3 Scenario implementation requirements . 31
5.3.4 Scenario flow. 32
5.3.5 Scenario details . 33
5.3.6 Scenarios and use case functions . 42
5.3.7 Dependencies to other use cases . 42
5.4 EV charging electricity measurement . 43
5.4.1 General. 43
5.4.2 Scenario overview . 43
5.4.3 Scenario implementation requirements . 44
5.4.4 Scenario details . 44
5.4.5 Scenarios and use case functions . 46
5.4.6 Dependencies to other use cases . 46
5.5 EV charging summary . 46
5.5.1 General. 46
5.5.2 Scenario overview . 47

5.5.3 Scenario implementation requirements . 47
5.5.4 Scenario details – Scenario 1 – EMS sends charging session summary
to charging station . 47
5.5.5 Scenarios and use case functions . 48
5.5.6 Dependencies to other use cases . 48
5.6 EV commissioning and configuration . 49
5.6.1 General. 49
5.6.2 Scenario overview . 49
5.6.3 Scenario implementation requirements . 50
5.6.4 Scenario details . 51
5.6.5 Scenarios and use case functions . 56
5.6.6 Dependencies to other use cases . 56
5.7 EV state of charge . 56
5.7.1 General. 56
5.7.2 Scenario overview . 57
5.7.3 Scenario implementation requirements . 57
5.7.4 Scenario details : Scenario 1 – Monitor EV's state of charge . 57
5.7.5 Scenarios and use case functions . 58
5.8 Limitation of active power consumption . 58
5.8.1 General. 58
5.8.2 Detailed background information and rules . 59
5.8.3 State machine . 62
5.8.4 Scenario overview . 64
5.8.5 Scenario implementation requirements . 65
5.8.6 Scenario details . 65
5.8.7 Scenarios and use case functions . 69
5.8.8 Dependencies to other use cases . 69
5.8.9 Further information and rules . 69
5.9 Monitoring of active power consumption . 70
5.9.1 General. 70
5.9.2 Scenario overview . 70
5.9.3 Scenario implementation requirements . 71
5.9.4 Scenario details . 71
5.9.5 Scenarios and use case functions . 74
5.10 Optimization of self-consumption during EV charging . 75
5.10.1 General. 75
5.10.2 Scenario overview . 75
5.10.3 Scenario implementation requirements . 75
5.10.4 Scenario details . 76
5.10.5 Dependencies to other use cases . 78
5.11 Overload protection by EV charging current curtailment . 79
5.11.1 General. 79
5.11.2 Derivation of the time limits for the involved units . 79
5.11.3 Further information. 80
5.11.4 Scenario overview . 80
5.11.5 Scenario implementation requirements . 80
5.11.6 Scenario details . 81
5.11.7 Scenarios and use case functions . 82
5.11.8 Dependencies to other use cases . 83

– 4 – IEC 63380-1:2025 © IEC 2025
5.12 Basic EV charging/discharging . 84
5.12.1 General. 84
5.12.2 Scenario overview . 84
5.12.3 Scenario implementation requirements . 85
5.12.4 Scenario details . 85
5.12.5 Scenarios and use case functions . 88
5.12.6 Dependencies to other use cases – EV commissioning and
configuration . 88
5.13 Dynamic bidirectional EV charging . 89
5.13.1 General. 89
5.13.2 Dynamic mode . 90
5.13.3 Scenario overview . 90
5.13.4 Scenario implementation requirements . 91
5.13.5 Scenarios and use case functions . 91
5.13.6 Scenarios and use case functions . 96
5.13.7 Dependencies to other use cases . 97
5.13.8 Further information and rules . 97
6 Generic use case functions (UCF) . 98
6.1 General . 98
6.2 Concepts . 98
6.3 UCF_AC_Measurement ─ Generic description . 98
6.3.1 General. 98
6.3.2 Measurement . 100
6.3.3 Electrical connection data . 107
6.4 UCF_Characteristics ─ Generic description . 112
6.4.1 General. 112
6.4.2 Characteristics. 113
6.5 UCF_Charging_Power_Limits ─ Generic description . 113
6.5.1 General. 113
6.5.2 Electrical connection parameters . 114
6.5.3 Electrical connection permitted values . 114
6.6 UCF_Consumption_Curve ─ Generic description . 115
6.6.1 General. 115
6.6.2 Consumption curve . 116
6.7 UCF_Device_Configuration ─ Generic description . 120
6.7.1 General. 120
6.7.2 Device configuration – Key value description . 121
6.7.3 Device configuration data . 121
6.7.4 Write device configuration data . 122
6.8 UCF_Device_State ─ Generic description . 123
6.8.1 General. 123
6.8.2 Device state . 124
6.9 UCF_EV_Connected ─ Generic description . 125
6.9.1 General. 125
6.9.2 Information content . 125
6.10 UCF_Heartbeat ─ Generic description . 125
6.10.1 General. 125
6.10.2 Heartbeat . 126
6.11 UCF_Identification ─ Generic description . 126

6.11.1 General. 126
6.11.2 Identification . 126
6.12 UCF_Incentive_Table ─ Generic description . 127
6.12.1 General. 127
6.12.2 Incentive table . 128
6.12.3 Write incentive table . 132
6.13 UCF_Load_Control ─ Generic description . 135
6.13.1 General. 135
6.13.2 Load constraints . 136
6.14 UCF_Manufacturer_Information ─ Generic description . 138
6.14.1 General. 138
6.14.2 Manufacturer data . 138
6.15 UCF_Maximum_Power_Limitation_Curve ─ Generic description . 139
6.15.1 General. 139
6.15.2 Maximum power limitation curve . 140
6.15.3 Update maximum power limitation curve ─ Time series data . 142
6.16 UCF_Measurement ─ Generic description . 142
6.16.1 General. 142
6.16.2 Measurement . 143
6.17 UCF_Power_Limit . 144
6.17.1 Generic description . 144
6.17.2 Additional information . 146
6.18 UCF_Operation_Mode ─ Generic description . 146
6.18.1 General. 146
6.18.2 Current operation mode ─ Operation mode description . 147
6.18.3 Send operation mode ─ Operation mode description . 147
6.19 UCF_Session_Summary ─ Generic description . 147
6.19.1 General. 147
6.19.2 Session summary. 148
6.19.3 Session summary write ─ Charging summary data . 150
6.20 UCF_Setpoint ─ Generic description. 151
6.20.1 General. 151
6.20.2 Setpoint . 152
Bibliography . 154

Figure 1 – Overview of the IEC 63380 series . 20
Figure 2 – Communication scope of the IEC 63380 series . 21
Figure 3 – Sources of information for an EMS. 24
Figure 4 – Charging station commissioning and configuration – High-level use case
functionality overview. 26
Figure 5 – Charging station commissioning and configuration – Scenario overview . 26
Figure 6 – Charging station commissioning and configuration – Scenario 1 overview . 27
Figure 7 – Charging station commissioning and configuration – Scenario 2 overview . 28
Figure 8 – Coordinated EV charging – High-level use case functionality overview . 29
Figure 9 – Charging session example . 30
Figure 10 – Coordinated EV charging – Scenario overview . 31
Figure 11 – Coordinated EV charging – Scenario flow . 32

– 6 – IEC 63380-1:2025 © IEC 2025
Figure 12 – Energy demand example . 33
Figure 13 – Maximum power limitation curve example . 35
Figure 14 – Incentive table example with consideration of the P curve from
max
scenario 2. 37
Figure 15 – Incentive table example (single incentive slot) for different tiers . 38
Figure 16 – Charging plan curve example . 39
Figure 17 – EV Charging electricity measurement – High-level use case functionality
overview . 43
Figure 18 – EV charging electricity measurement – Scenario overview. 44
Figure 19 – EV charging current overview . 44
Figure 20 – EV charging power overview . 45
Figure 21 – EV charged energy overview . 45
Figure 22 – EV charging summary – High-level use case functionality overview . 47
Figure 23 – EV charging summary – Scenario overview . 47
Figure 24 – Charging session summary . 48
Figure 25 – EV commissioning and configuration – High-level use case functionality
overview . 49
Figure 26 – EV commissioning and configuration – Scenario overview . 50
Figure 27 – EV commissioning and configuration – Scenario 1 overview . 51
Figure 28 – EV commissioning and configuration – Scenario 2 overview . 52
Figure 29 – EV commissioning and configuration – Scenario 3 overview . 53
Figure 30 – EV Commissioning and Configuration – Scenario 4 overview . 53
Figure 31 – EV commissioning and configuration – Scenario 5 overview . 54
Figure 32 – EV commissioning and configuration – Scenario 6 overview . 55
Figure 33 – EV commissioning and configuration – Scenario 7 overview . 55
Figure 34 – EV commissioning and configuration – Scenario 8 overview . 56
Figure 35 – EV state of charge – High-level use case functionality overview . 57
Figure 36 – EV state of charge – Scenario overview. 57
Figure 37 – Monitor EV's state of charge. 57
Figure 38 – Limitation of active power consumption – High-level use case functionality
overview . 59
Figure 39 – State machine after connection establishment . 63
Figure 40 – Limitation of active power consumption – Scenario overview . 65
Figure 41 – Monitoring of active power consumption – High-level use case functionality
overview . 70
Figure 42 – Monitoring of active power consumption – Scenario overview . 71
Figure 43 – Optimization of self-consumption during EV charging – High-level use case
functionality overview. 75
Figure 44 – Optimization of self-consumption during EV Charging – Scenario overview . 75
Figure 45 – Optimization of self-consumption during EV charging – Scenario 1
overview . 76
Figure 46 – Overload protection by EV charging current curtailment – High-level use
case functionality overview . 79
Figure 47 – Overload protection by EV charging current curtailment – Scenario
overview . 80

Figure 48 – Overload protection by EV charging current curtailment – Scenario 1
overview . 81
Figure 49 – Example for asymmetric versus symmetric charging curtailment . 81
Figure 50 – Basic EV charging/discharging – High-level use case functionality overview . 84
Figure 51 – Basic EV charging/discharging – Scenario overview . 85
Figure 52 – Basic EV charging/discharging – Scenario 1 overview . 86
Figure 53 – EMS monitors EV's state of charge – Scenario 2 overview . 86
Figure 54 – Basic EV Charging/Discharging – Scenario 3 overview . 87
Figure 55 – Basic EV charging/discharging – Scenario 4 overview . 87
Figure 56 – Basic EV Charging/Discharging – Scenario 5 overview . 88
Figure 57 – Dynamic bidirectional EV charging – High-level use case functionality

overview . 90
Figure 58 – Dynamic bidirectional EV charging – Scenario overview . 91
Figure 59 – Example of energy request dependencies . 94
Figure 60 ─ Messaging sequence for UCF_AC_Measurement . 99
Figure 61 – Messaging sequence for UCF_Characteristics . 112
Figure 62 – Messaging sequence for UCF_Charging_Power_Limits . 114
Figure 63 – Messaging sequence for UCF_Consumption_Curve . 115
Figure 64 – Messaging sequence for UCF_Device_Configuration . 120
Figure 65 – Messaging sequence for UCF_Device_State . 123
Figure 66 – Messaging sequence for UCF_Heartbeat . 125
Figure 67 – Messaging sequence for UCF_Identification. 126
Figure 68 – Messaging sequence for UCF_Incentive_Table . 127
Figure 69 – Messaging sequence for UCF_Load_Control . 135
Figure 70 – Messaging sequence for UCF_ Manufacturer_Information . 138
Figure 71 – Messaging sequence for UCF_ Maximum_Power_Limitation_Curve . 139
Figure 72 – Messaging sequence for UCF_Measurement . 142
Figure 73 – Messaging sequence for UCF_Power_Limit . 144
Figure 74 – Messaging sequence for UCF_Operation_Mode . 146
Figure 75 – Messaging sequence for UCF_Session_Summary . 148
Figure 76 – Messaging sequence for UCF_Setpoint . 151

Table 1 – User stories . 22
Table 2 – Mapping of user stories to use cases . 25
Table 3 – Presence indication description . 26
Table 4 – Charging station commissioning and configuration – Scenario
implementation requirements for actors . 27
Table 5 – Charging station commissioning and configuration – Scenarios and primary
use case functions (UCFs) . 28
Table 6 – Coordinated EV charging – Scenario implementation requirements for actors . 31
Table 7 – Coordinated EV charging – Scenarios and primary use case functions

(UCFs) . 42
Table 8 – EV charging electricity measurement – Scenario implementation
requirements for actors . 44

– 8 – IEC 63380-1:2025 © IEC 2025
Table 9 – EV charging electricity measurement – Scenarios and primary use case
functions (UCFs) . 46
Table 10 – EV charging summary – Scenario implementation requirements for actors . 47
Table 11 – EV charging summary – Scenarios and primary use case functions (UCFs) . 48
Table 12 – EV commissioning and configuration – Scenario implementation
requirements for actors . 51
Table 13 – EV commissioning and configuration – Scenarios and primary use case
functions (UCFs) . 56
Table 14 – EV state of charge – Scenario implementation requirements for actors . 57
Table 15 – EV state of charge – Scenarios and primary use case functions (UCFs) . 58
Table 16 – Charging station power limitation behaviour . 59
Table 17 – Limitation of active power consumption – Scenario implementation
requirements for actors . 65
Table 18 – Scenario 1 – Control active power consumption limit – Data point list . 66
Table 19 – Scenario 2 – Failsafe values – Data point list . 67
Table 20 – Scenario 3 – Heartbeat – Data point list. 68
Table 21 – Scenario 4 – Constraints – Data point list . 68
Table 22 – Limitation of active power consumption – Scenarios and primary use case
functions (UCFs) . 69
Table 23 – Monitoring of active power consumption – Scenario implementation
requirements for actors . 71
Table 24 – Scenario 1 – Monitor power consumption – Data point list . 72
Table 25 – Scenario 2 – Monitor consumed energy – Data point list. 72
Table 26 – Scenario 3 – Monitor current – Data point list . 73
Table 27 – Scenario 4 – Monitor voltage – Data point list. 73
Table 28 – Scenario 5 – Monitor frequency – Data point list . 74
Table 29 – Monitoring of active power consumption – Scenarios and primary use case
functions (UCFs) . 74
Table 30 – Optimization of self-consumption during EV charging – Scenario
implementation requirements for actors . 76
Table 31 – Optimization of self-consumption during EV charging – Scenarios and
primary use case functions (UCFs) . 78
Table 32 – Overload protection by EV charging current curtailment – Scenario
implementation requirements for actors . 81
Table 33 – Overload protection by EV charging current curtailment – Scenarios and
primary use case functions (UCFs) . 83
Table 34 – Basic EV charging/discharging – Scenario implementation requirements for
actors . 85
Table 35 – Basic EV charging/discharging – Scenarios and primary use case functions
(UCFs) . 88
Table 36 – Dynamic bidirectional EV charging – Scenario implementation requirements
for actors . 91
Table 37 – Scenario 1 – Control active power setpoint – Data point list . 92
Table 38 – Scenario 2 – Monitor energy requests – Data point list . 95
Table 39 – Scenario 3 – Monitor constraints – Data point list . 95
Table 40 – Scenario 4 – Configuration parameters – Data point list . 96
Table 41 – Dynamic bidirectional EV charging – Scenarios and primary use case
functions (UCFs) . 96

Table 42 – Information content for measurement description at actor charging station
for power (use case "monitoring of active power consumption") . 100
Table 43 – Information content for measurement description at actor charging station

for power (use case "ev charging electricity measurement") . 100
Table 44 – Information content for measurement constraints at actor charging station
for power (use cases "monitoring of active power consumption" and "EV charging
electricity measurement") . 101
Table 45 – Information content for measurement data at actor charging station for
power (use case "monitoring of active power consumption") . 101
Table 46 – Information content for measurement data at actor charging station for
power (use case "EV charging electricity measurement") . 101
Table 47 – Information content for measurement description at actor charging station
for energy (use case "monitoring of active power consumption") . 102
Table 48 – Information content for measurement description at actor charging station
for energy (use case "EV charging electricity measurement") . 102
Table 49 – Information content for measurement constraints at actor charging station
for energy (use cases "monitoring of active power consumption" and "EV charging
electricity measurement") . 102
Table 50 – Information content for measurement data at actor charging station for
energy (use case "monitoring of active power consumption") . 103
Table 51 – Information content for measurement data at actor charging station for
energy (use case "EV charging electricity measurement") . 103
Table 52 – Information content for measurement description at actor charging station
for current (use cases "monitoring of active power consumption" and "EV charging
electricity measurement") . 104
Table 53 – Information content for measurement constraints at actor charging station
for current (use cases "monitoring of active power consumption" and "EV charging
electricity measurement") . 104
Table 54 – Information content for measurement data at actor
...