IEC 63110-1:2022

IEC 63110-1 ®
Edition 1.0 2022-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Protocol for management of electric vehicles charging and discharging
infrastructures –
Part 1: Basic definitions, use cases and architectures

Protocole de gestion des infrastructures de charge et de décharge des
véhicules électriques –
Partie 1: Définitions de base, cas d'utilisation et architectures

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IEC 63110-1 ®
Edition 1.0 2022-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Protocol for management of electric vehicles charging and discharging

infrastructures –
Part 1: Basic definitions, use cases and architectures

Protocole de gestion des infrastructures de charge et de décharge des

véhicules électriques –
Partie 1: Définitions de base, cas d'utilisation et architectures

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 03.100.70; 43.120 ISBN 978-2-8322-3868-4

– 2 – IEC 63110-1:2022 © IEC 2022
CONTENTS
FOREWORD . 6
INTRODUCTION . 8
1 Scope . 9
2 Normative references . 9
3 Terms, definitions, and abbreviated terms . 10
3.1 Terms and definitions. 10
3.1.14 Constraints . 11
3.1.40 Session . 15
3.1.41 Transaction . 16
3.2 Abbreviated terms . 17
4 Actors and architecture model . 18
4.1 Actors . 18
4.2 Architecture model . 18
4.3 IEC 63110 metamodel. 19
4.4 Actors and system view . 21
4.5 Implementation examples . 23
5 Roles, actors, domains descriptions . 23
5.1 General . 23
5.2 Uses cases type descriptions . 23
5.3 Description of the business roles . 24
5.4 Description of the system actors . 24
5.5 Domain description . 24
5.5.1 General . 24
5.5.2 Deliver energy transfer services . 25
5.5.3 Deliver e-mobility services . 26
5.5.4 Manage charging station . 26
6 Events, loops and sessions . 27
6.1 General . 27
6.2 Sessions and transactions description . 28
7 General requirements . 29
7.1 Generalities . 29
7.2 Communication protocol requirements . 29
7.2.1 General . 29
7.2.2 Data transfer . 29
7.3 Communication architecture requirements . 30
7.4 User specific requirements . 30
7.5 CSMS implementation requirements . 30
7.6 Interface requirements between CEM, RM and CSMS . 30
7.7 Grid specific requirements . 31
7.8 DSO requirements . 31
7.9 Cybersecurity requirements . 31
7.9.1 General . 31
7.9.2 Security considerations for information . 31
7.9.3 Threat analysis . 35
7.9.4 Security requirements . 36
7.9.5 Relation with use cases . 37

7.10 Safety requirements . 37
8 Use cases . 37
8.1 Generalities . 37
8.2 Energy domain use cases . 38
8.2.1 General . 38
8.2.2 Use case list of the energy domain . 38
8.2.3 Smart charging management . 39
8.2.4 Charging with demand response . 43
8.2.5 CSMS – RM exchange of information at the initiative of the CSMS . 46
8.2.6 CSMS – RM exchange of information at the initiative of the RM . 49
8.2.7 Power variation triggered by DSO . 51
8.2.8 Actors' relations during a V2G session . 54
8.2.9 Information exchange required to ensure a dynamic energy transfer
control . 56
8.2.10 Providing frequency regulation service by means of decentralized

frequency measurements . 58
8.3 Manage CS domain use cases . 62
8.3.1 General . 62
8.3.2 Use case list of the manage CS domain . 62
8.3.3 Discover CS configuration . 63
8.3.4 Update a CS component properties . 66
8.3.5 Monitor a CS . 69
8.3.6 Update the firmware of a CS . 71
8.3.7 Reboot a CS . 75
8.3.8 The CSMS sets the information to be presented to the user . 78
8.3.9 The CSMS sets log criteria . 80
8.3.10 Retrieve log information from the CS . 82
8.3.11 Fault-code provisioning. 85
8.3.12 Information deletion triggered to CSMS by an SA . 87
8.3.13 CS deregistration . 90
8.3.14 Migration of the CS . 93
8.3.15 Onboarding the CS . 95
8.3.16 CA certificate provisioning . 97
8.3.17 ISO 15118 OCSP response messages . 101
8.3.18 Install CS certificate . 104
8.3.19 Install the certificate of the local CSMS . 107
8.3.20 Install CS certificate with key pairs created outside . 110
8.3.21 Certificate revocation . 113
8.4 Deliver e-mobility services domain use cases . 115
8.4.1 General . 115
8.4.2 Use case list for deliver e-mobility service domain . 116
8.4.3 Reservation of an EVSE . 116
8.4.4 Authorization with locally presented credentials . 120
8.4.5 Authorization by external means . 122
8.4.6 Inform EVU about tariff during charging session . 124
8.4.7 Inform EVU about tariff during operation . 126
8.4.8 SDR information production . 128
8.4.9 ISO 15118 contract certificate installation/update . 129
Annex A (informative) Implementation examples . 134

– 4 – IEC 63110-1:2022 © IEC 2022
A.1 General . 134
A.2 A simple home example or a single EVSE at kerbside . 134
A.3 A more complex home with one or more CSs . 134
A.4 Parking lots or high-power CS example. 136
A.5 A CS with local production and storage . 136
Annex B (informative) Requirements used for selecting the transport technology . 138
B.1 Message specific timeouts shall be supported. 138
B.2 Transport foundation shall be IP based – with IPv4 and IPv6 support. 138
B.3 It shall be possible to transport encrypted and/or signed message payload

sub-elements . 138
B.4 The communication between a CSC and a CSMS shall be encrypted
(transport layer) . 139
B.5 Bidirectional communication shall be possible . 139
B.6 Long messages shall not block urgent messages . 139
B.7 Message payload encoding shall be memory and CPU efficient . 139
B.8 Message priority shall be under the control of the application layer . 139
B.9 Asynchronous message transfer shall be supported . 140
B.10 Authentication with related session mechanism shall be supported . 140
B.11 Multicast messages should be supported . 140
B.12 Addressing scheme needs to be supported . 140
B.13 Coordinated time at CS level shall be supported . 140
B.14 Message encoding shall support non-standard payload elements . 141
B.15 Message encoding shall support versioning . 141
B.16 Communication shall be delay tolerant . 141
B.17 The communication technology should have a high reliability in payload
delivery . 141
B.18 The selected communication technology should not have a single point of

failure . 142
B.19 Technology shall have proven implementations . 142
B.20 Technology shall not have intellectual property restrictions . 142
B.21 The communication technology shall be stable . 142
B.22 Fine grained authorization shall be supported . 143
B.23 Communication layer shall be supported by at least two operating systems

and embedded platforms for CS and CSMS . 143
B.24 Interoperability with conventional information models used in power industry . 143
B.25 Communication layer shall support IEC 63110's multi-level architecture for
CSMS . 144
B.26 Efficient support for binary payload . 145
B.27 Communication layer shall support request/response and publish/subscribe

patterns . 145
Annex C (informative) Example of a complex service session . 146
C.1 Visual representation . 146
C.2 Description . 146
Annex D (informative) Classification of use cases impacts . 148
Annex E (informative) Security use case sequence . 150
Bibliography . 151

Figure 1 – Actor's interactions. 18
Figure 2 – Architecture model of the component layer . 19

Figure 3 – IEC 63110 metamodel . 20
Figure 4 – IEC 63110 top-level architecture . 21
Figure 5 – Actors . 21
Figure 6 – Generic communication architecture – System view . 22
Figure 7 – Charging site with two charging site zones controlled by a CSMS . 23
Figure 8 – Example of service session . 28
Figure 9 – Example of simultaneous service sessions . 29
Figure 10 – Smart charging sequence diagram . 43
Figure A.1 – A simple home with one CS . 134
Figure A.2 – Complex home with one CS . 135
Figure A.3 – Complex home with two charging stations . 135
Figure A.4 – Parking lot example . 136
Figure A.5 – CS with local production and battery storage . 137
Figure C.1 – Example of a complex service session . 146
Figure E.1 – Security use case sequence . 150

Table 1 – Business roles of the e-mobility domain . 24
Table 2 – System actors of the e-mobility domain . 24
Table 3 – Security considerations by information . 32
Table 4 – List of use cases of the energy domain . 39
Table 5 – List of use cases of the manage CS domain . 62
Table 6 – List of use cases of the e-mobility domain . 116
Table D.1 – Use case classification of the energy domain . 148
Table D.2 – Use case classification for the manage CS domain . 149
Table D.3 – Use case classification of the deliver e-mobility services domain . 149

– 6 – IEC 63110-1:2022 © IEC 2022
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
PROTOCOL FOR MANAGEMENT OF ELECTRIC VEHICLES
CHARGING AND DISCHARGING INFRASTRUCTURES –

Part 1: Basic definitions, use cases and architectures

FOREWORD
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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.
IEC 63110-1 has been prepared by IEC technical committee 69: Electrical power/energy
transfer systems for electrically propelled road vehicles and industrial trucks. It is an
International Standard.
The text of this International Standard is based on the following documents:
Draft Report on voting
69/837/FDIS 69/843/RVD
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 International Standard is English.

This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/standardsdev/publications.
A list of all parts in the IEC 63110 series, published under the general title Protocol for
management of electric vehicles charging and discharging infrastructures, can be found on the
IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this document using a colour printer.

– 8 – IEC 63110-1:2022 © IEC 2022
INTRODUCTION
In recent years, the necessity of reducing greenhouse gas emissions has led the automotive
industry to develop vehicles propelled by electric energy. Among them, the success of vehicles
with electric rechargeable batteries has marked the beginning of the deployment of electric
charging infrastructures.
During the first years, solutions for management of charging infrastructures were based on
industry alliance specifications or proprietary protocols. They greatly contributed to education
and involvement of early EV adopters. However, with the coming mass development of
e-mobility required by the latest energy policies in most countries, it is necessary to standardize
the communication protocol between charging infrastructures and charging stations operators
in order to establish an international, safe, secure, interoperable and grid friendly e-mobility
eco-system.
This standardized protocol is beneficial to all actors belonging to the e-mobility environment
such as EV manufacturers, charging station manufacturers and operators, e-mobility service
providers, grid network operators, distribution system operators (DSO) and transmission system
operators (TSO), flexibility operators (FO), balance responsible parties and of course the EV
users.
Special attention is paid to the security and traceability of the transactions with respect to
identification and payment, but also to privacy regulations in force in many countries in order to
avoid malicious or criminal use of the charging station.
The general requirements and definitions of this document form the basic framework for all use
case descriptions and related documents in IEC 63110 (all parts). This document is the result
of a large consensus among all the actors of e-mobility and should be considered as a guideline
for implementers of IEC 63110 (all parts).
Technical specifications and requirements of the IEC 63110 protocol will be defined in a future
part of IEC 63110.
PROTOCOL FOR MANAGEMENT OF ELECTRIC VEHICLES
CHARGING AND DISCHARGING INFRASTRUCTURES –

Part 1: Basic definitions, use cases and architectures

1 Scope
This part of IEC 63110, as a basis for the other parts of IEC 63110, covers the definitions, use
cases and architecture for the management of electric vehicle charging and discharging
infrastructures.
It addresses the general requirements for the establishment of an e-mobility eco-system,
therefore covering the communication flows between different e-mobility actors as well as data
flows with the electric power system.
This document covers the following features:
– management of energy transfer (e.g., charging session), reporting, including information
exchanges related to the required energy, grid usage, contractual data, and metering data;
– asset management of EVSE, including controlling, monitoring, maintaining, provisioning,
firmware update and configuration (profiles) of EVSE;
– authentication/authorization/payment of charging and discharging sessions, including
roaming, pricing, and metering information;
– the provision of other e-mobility services;
– cybersecurity.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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.
ISO 15118 (all parts), Road vehicles – Vehicle to grid communication interface
INTERNET ENGINEERING TASK FORCE (IETF). RFC 6960: X.509 Internet Public Key
Infrastructure Online Certificate Status Protocol – OCSP [online]. S. Santesson et al. June 2013
[viewed 2022-01-26]. Available at: https://www.ietf.org/rfc/rfc6960.txt

– 10 – IEC 63110-1:2022 © IEC 2022
3 Terms, definitions, and abbreviated terms
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1 Terms and definitions
3.1.1
actor
entity that communicates and interacts
Note 1 to entry: These actors can include people, software applications, systems, databases and even the power
system itself.
[SOURCE: IEC 62559-2:2015, 3.2]
3.1.2
balance responsible party
BRP
party that has a contract providing financial security and identifying balance responsibility with
the imbalance settlement responsible of the market balance area entitling the party to operate
in the market
3.1.3
business use case
description of how business roles interact to execute a business process
Note 1 to entry: These processes are derived from services, i.e., business transactions, which have previously been
identified.
3.1.4
customer energy manager
CEM
internal automation function for optimizing the energy consumption and/or production within the
premises according to the preferences of the customer using internal flexibilities and typically
based on external information received through the Smart Grid Connection Point and possibly
other data sources
Note 1 to entry: It provides the expected services while fulfilling contracted conditions with the Electricity Supplier,
the DSO, the FO, or any other system operators.
3.1.5
charging service provider
CSP
role which does not operate EVSE but manages and authenticates EV user's credentials and
provides charging and other value-added services for EV users
3.1.6
charging site
CSI
geographical area that encloses one or more CSs
Note 1 to entry: This is a physical concept.

3.1.7
charging site zone
CSZ
management concept representing a group of one or more charging stations at a particular
charging site
Note 1 to entry: The energy management scope of a RM is defined by the CSMS in the context of a charging site
zone.
Note 2 to entry: This is a logical concept.
3.1.8
charging station management system
CSMS
system responsible for managing charging infrastructures
Note 1 to entry: CSMS can have local CSMS and/or cloud CSMS instances to implement the system. See system
description in 4.4.
Note 2 to entry: This is a logical concept.
3.1.9
charging station operator
CSO
party responsible for the provisioning and operation of a charging infrastructure (including
charging sites), and managing electricity to provide requested energy transfer services
3.1.10
charging station
CS
physical equipment consisting of one or more CSCs and one or more EVSEs managing the
energy transfer to and from EVs
3.1.11
charging station controller
CSC
sub-system of CS responsible for managing one or more EVSEs
Note 1 to entry: The protocol between the CSC and the EVSE is out of scope of IEC 63110 (all parts).
3.1.12
charging station manufacturer
CSM
party responsible for manufacturing charging station providing software updates, upgrades of
the hardware and diagnostics support to the CSO
3.1.13
cloud CSMS
CSMS instance physically deployed at a distant place from the charging site
Note 1 to entry: The cloud CSMS does not have to guarantee the same level of reliability and communication latency
that is expected from a local CSMS.
Note 2 to entry: This is a physical concept.
3.1.14 Constraints
3.1.14.1
power constraints
range for upper and lower limits for extreme power values within a period of time

– 12 – IEC 63110-1:2022 © IEC 2022
3.1.14.2
energy constraints
range for upper and lower limits for average power within a period of time
3.1.15
distribution system operator
DSO
entity responsible for the planning, operation, maintenance, and the development in given areas
of the electricity distribution network
Note 1 to entry: The given areas of the electricity distribution network can be low voltage, medium voltage, and
potentially high voltage.
Note 2 to entry: The DSO provides the quality of electricity supply (power delivery, voltage, etc.) and customer
access to electricity provider market through its system under regulated conditions.
Note 3 to entry: This definition has been adapted from the one in IEC SRD 62913-2-4:2019, Table 3.
3.1.16
e-mobility clearing house
EMOCH
entity mediating between two clearing partners to provide validation services for roaming
regarding contracts of different EMSPs
3.1.17
e-mobility needs
mobility needs expressed by the EV user in terms of departure time, minimum and maximum
energy request and target energy request or minimum and maximum target state of charge
[SOURCE: ISO 15118-1:2019, 3.1.25, modified – The words "or minimum and maximum target
state of charge" have been added to the definition.]
3.1.18
e-mobility service provider
EMSP
party responsible for providing high-value service related to the use of an EV
Note 1 to entry: Examples of service are renting an EV, reservation of parking service, navigation services, energy
services which include charging station provider in relation with CSO.
Note 2 to entry: This definition has been adapted from the one in IEC SRD 62913-2-4:2019, Table 3.
3.1.19
electric vehicle communication controller
EVCC
embedded system, within the vehicle, that implements the communication between the vehicle
and the SECC in order to support specific functions
[SOURCE: ISO 15118-1:2019, 3.1.31, modified – Note 1 to entry has been removed.]
3.1.20
electric vehicle supply equipment
EVSE
equipment or a combination of equipment, providing dedicated functions to supply electric
energy from a fixed electrical installation or supply network to an EV for the purpose of charging
and discharging
[SOURCE: IEC 61851-1:2017, 3.1.1, modified – The words "and discharging" have been added
to the definition, and the examples have been removed.]

3.1.21
electric vehicle user
EVU
person or legal entity using the vehicle and providing information about its needs
Note 1 to entry: This definition has been adapted from the one in IEC SRD 62913-2-4:2019, Table 3.
3.1.22
electricity provider
EP
entity whose activity is the wholesale purchase of electricity and the subsequent direct resale
to client through a contract
Note 1 to entry: The electricity provider may also deliver energy related-services.
Note 2 to entry: The electricity provider can generate flexibilities through modulation of electricity prices (time-of-
use, critical peak prices, etc.) which can have value on energy markets and/or for network operations.
3.1.23
e-mobility authentication identifier
EMAID
identifier used for identification of the contract holder
3.1.24
energy transfer plan
ETP
forecast of future energy transfer activities with associated uncertainties, flexibility options and
limits over time
Note 1 to entry: The energy transfer plan is able to support all different charging techniques (ISO 15118 schedule
and dynamic modes, CHAdeMO, etc.).
3.1.25
flexibility
elasticity of resource use (demand, storage, generation), modification of consumption and/or
generation of energy/power, on an individual or aggregated level, in reaction to an external
signal (price signal or request) in order to provide a service within the energy system
Note 1 to entry: This definition is based on EURELECTRIC, Active Distribution System Management [see
Bibliography].
3.1.26
flexibility operator
FO
party that is responsible for at least one of services like aggregating load flexibility from different
users of low voltage and/or medium voltage grids, and trading it with other parties like the TSO
and/or the DSO in order to provide ancillary services (adjustment mechanism), or any other
(future) flexibility markets, e.g., optimization of balancing grid billing
Note 1 to entry: It may address EV charging through CSOs and may trade its service to other parties.
3.1.27
functional block
FB
logical representation of a component which contains information about the inputs, outputs,
processes, requirements, functions, and functional sequences of a given functionality
3.1.28
hard power limit
HPL
maximum permissible power of a charging station due to physical design

– 14 – IEC 63110-1:2022 © IEC 2022
3.1.29
local CSMS
CSMS instance physically deployed at a specific charging site
Note 1 to entry: This is a physical concept.
3.1.30
power limit
power value that cannot be exceeded
3.1.31
power range
operating area between an upper power limit and a lower power limit
Note 1 to entry: The limits of the power range are placed by the RM within the upper and lower power constraints
of the CSMS.
Note 2 to entry: These limits are based on the total power allocated to the CSZ by the CEM.
Note 3 to entry: The power limits should by design always be within the range of the HPLs of the CSZ.
3.1.32
power range envelope
PRE
consecutive series of power ranges over time
3.1.33
online certificate status protocol
OCSP
communication protocol used to determine the current status of a digital certificate without
requiring Certificate Revocation Lists, as defined in RFC 6960
3.1.34
primary actor
entity involved directly in an IEC 63110 process
3.1.35
private network
PN
electricity network (home, building, factory, etc.) downstream of a smart grid connection point
(SGCP)
Note 1 to entry: It is handled by the private network operator, who assumes the full responsibilities and coverage.
3.1.36
private network operator
...