IEC SRD 63268:2020

IEC SRD 63268 ®
Edition 1.0 2020-10
SYSTEMS
REFERENCE DELIVERABLE
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Energy and data interfaces of users connected to the smart grid with other smart
grid stakeholders – Standardization landscape

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IEC SRD 63268 ®
Edition 1.0 2020-10
SYSTEMS
REFERENCE DELIVERABLE
colour
inside
Energy and data interfaces of users connected to the smart grid with other smart

grid stakeholders – Standardization landscape

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.020, 29.240 ISBN 978-2-8322-8995-2

– 2 – IEC SRD 63268:2020 © IEC 2020
CONTENTS
FOREWORD . 7
INTRODUCTION . 9
1 Scope . 10
2 Normative references . 10
3 Terms, definitions and abbreviated terms . 10
3.1 Terms and definitions . 10
3.2 Abbreviated terms . 11
4 Executive summary . 12
4.1 General . 12
4.2 IEC entities involvement summary . 12
4.2.1 General . 12
4.2.2 Main gaps . 13
4.2.3 Standardization entity coordination improvement . 13
5 Introducing the main interactions between the grid and the grid users . 15
5.1 Reference to SGAM . 15
5.2 SGAM principles (reminder) . 15
5.2.1 General . 15
5.2.2 SGAM interoperability layers . 15
5.2.3 SGAM – smart grid plane . 16
5.2.4 Global SGAM framework . 18
5.3 Breaking down DER and Customer Premises domains into subdomains . 19
5.4 Main considered interactions. 20
5.4.1 General . 20
5.4.2 Conceptual model basis . 20
5.4.3 Transposition into the SGAM concepts . 21
5.4.4 Interactions detailed identification . 22
5.4.5 Specific case of EV and associated interactions and SGAM mapping . 26
6 Standardization assessment of the main smart grid user interfaces . 29
6.1 General . 29
6.2 Interactions with the grid operators . 29
6.3 Interactions related to DER operation . 30
6.3.1 General . 30
6.3.2 In case of DER grid users . 30
6.3.3 In case of DER units within Home and Building grid users (specific
Customer Premises grid users) . 31
6.3.4 In case of DER units within Industry grid users (specific Customer
Premises grid users) . 31
6.3.5 In case of DER units within a multi-owner microgrid (specific Customer
Premises grid users) . 32
6.4 Interactions to and from the service provider and energy metering . 32
6.5 Interactions with the energy market places . 32
6.6 Additional interactions applying to EV . 33
Annex A (informative) Mapping of the interfaces between the grid operator with grid
users hosting DER units . 34
A.1 Interfaces under consideration . 34
A.2 Main use cases . 34
A.3 Mapping standards to the SGAM architecture . 34

A.3.1 Preamble . 34
A.3.2 Component layer . 34
A.3.3 Communications layer . 35
A.3.4 Information (Data) layer . 36
A.3.5 Mapping IEC entities involved interfacing the grid operator with grid

users . 37
Annex B (informative) Mapping the interfaces related to DER operation . 40
B.1 Interfaces under consideration . 40
B.2 Main use cases . 40
B.3 Mapping standards to the SGAM architecture . 41
B.3.1 General . 41
B.3.2 Mapping standards to the SGAM architecture in case of DER grid users . 41
B.3.3 Mapping standards to the SGAM architecture in case of DER units
within Home and Building grid users (specific Customer Premises grid
users) . 46
B.3.4 Mapping standards to the SGAM architecture in case of DER units
within Industry grid users (specific Customer Premises grid users) . 51
B.3.5 Mapping standards to the SGAM architecture in case of a multi-owner
microgrid (specific Customer Premises domain grid users) . 56
Annex C (informative) Mapping the interfaces between grid users and service
providers and energy metering . 61
C.1 Interfaces under consideration . 61
C.2 Main use cases . 61
C.3 Mapping standards to the SGAM architecture . 62
C.3.1 Preamble . 62
C.3.2 Component layer . 62
C.3.3 Communications layer . 63
C.3.4 Information (Data) layer . 64
C.3.5 Mapping involved IEC entities to the SGAM architecture . 65
Annex D (informative) Mapping the interfaces with the market places . 68
D.1 Interfaces under consideration . 68
D.2 Main use cases . 68
D.3 Mapping standards to the SGAM architecture . 69
D.3.1 Preamble . 69
D.3.2 Component layer . 69
D.3.3 Communications layer . 70
D.3.4 Information (Data) layer . 70
D.3.5 Mapping involved IEC entities to the SGAM architecture . 71
Annex E (informative) Mapping the additional interfaces supporting EV integration . 73
E.1 Interfaces under consideration . 73
E.2 Mapping standards to the SGAM architecture . 73
E.2.1 Preamble . 73
E.2.2 Component layer . 73
E.2.3 Communications layer . 74
E.2.4 Information (Data) layer . 75
E.2.5 Mapping involved IEC entities to the SGAM architecture . 76
Annex F (informative) Smart metering main standard (extract) . 79
Annex G (informative) European smart grid conceptual model (extract from the SG-CG
document [4]) . 81
G.1 High level presentation of the smart grid conceptual model . 81

– 4 – IEC SRD 63268:2020 © IEC 2020
G.2 Main elements of the smart grid conceptual model . 82
G.2.1 Operations . 82
G.2.2 Grid Users . 82
G.2.3 Energy Services . 82
G.2.4 Markets . 83
Bibliography . 84

Figure 1 – Grouping into SGAM interoperability layers . 16
Figure 2 – Smart grid plane – domains and hierarchical zones . 17
Figure 3 – The SGAM framework . 19
Figure 4 – SGAM illustrating the smart grid user interface and its interfaces . 20
Figure 5 – Reworked smart grid conceptual model based on the SG-CG one . 21
Figure 6 – Main stakeholders' interactions, simplified view – Mapping the conceptual
model over the SGAM one . 22
Figure 7 – Global smart grid user interface mapped over the SGAM . 23
Figure 8 – Detailed smart grid user interface mapped over the SGAM . 24
Figure 9 – EV additional interactions – mapped over the SGAM . 27
Figure A.1 – Interfacing the grid operator with grid users hosting DER units mapped to
the SGAM component layer . 35
Figure A.2 – Interfacing the grid operator with grid users hosting DER units mapped to
the SGAM communication layer . 36
Figure A.3 – Interfacing the grid operator with grid users hosting DER units mapped to
the SGAM information layer . 37
Figure A.4 – IEC entities involved in interfacing the grid operator with grid users
hosting DER units . 38
Figure B.1 – Interfacing DER units within DER grid users for operation purpose –
component layer . 42
Figure B.2 – Interfacing DER units within DER grid users for operation purpose –
communication layer . 43
Figure B.3 – Interfacing DER units within DER grid users for operation purpose –
information layer . 44
Figure B.4 – IEC entities involved in interfacing DER units within DER grid users for
operation purpose . 45
Figure B.5 – Interfacing DER units within Home and Building grid users for operation
purpose – component layer . 47
Figure B.6 – Interfacing DER units within Home and Building grid users for operation
purpose – communication layer . 48
Figure B.7 – Interfacing DER units within Home and Building grid users for operation
purpose – information layer. 49
Figure B.8 – IEC entities involved in interfacing DER units within Home and Building
grid users for operation purpose . 50
Figure B.9 – Interfacing DER units within Industry grid users for operation purpose –
component layer . 52
Figure B.10 – Interfacing DER units within Industry grid users for operation purpose –
communication layer . 53
Figure B.11 – Interfacing DER units within Industry grid users for operation purpose –
information layer . 54
Figure B.12 – IEC entities involved in interfacing DER units within Industry grid users
for operation purpose . 55

Figure B.13 – Interfacing DER units within a multi-owner microgrid for operation
purpose – component layer . 56
Figure B.14 – Interfacing DER units within a multi-owner microgrid for operation

purpose – communication layer . 57
Figure B.15 – Interfacing DER units within a multi-owner microgrid for operation
purpose – information layer. 58
Figure B.16 – IEC entities involved in interfacing DER units within a multi-owner
microgrid for operation purpose . 59
Figure C.1 – Interfacing the service providers and energy metering – in relationship

with grid users (example) mapped to the SGAM component layer . 63
Figure C.2 – Service providers and energy metering interfaces – in relationship with
grid users (example) mapped to the SGAM communication layer . 64
Figure C.3 – Service providers and energy metering interfaces – in relationship with
grid users (example) mapped to the SGAM information layer . 65
Figure C.4 – IEC entities involved in supporting service providers and energy metering

interfaces . 66
Figure D.1 –Interfacing market places – mapped to the SGAM component layer . 69
Figure D.2 – Market places interfaces mapped to the SGAM communication layer . 70
Figure D.3 – Market places interfaces mapped to the SGAM information layer . 71
Figure D.4 – IEC entities involved in supporting market places interfaces . 72
Figure E.1 – Interfacing market places – mapped to the SGAM component layer . 74
Figure E.2 – Additional interfaces to support EV mapped to the SGAM communication
layer (in case of H&B) . 75
Figure E.3 – Market places interfaces mapped to the SGAM information layer . 76
Figure E.4 – IEC entities involved in supporting market places interfaces . 77
Figure F.1 – The smart metering reference architecture . 79
Figure G.1 – European smart grid conceptual model . 82

Table 1 – Summary of IEC entities involved in supporting interfaces of smart grid users . 13
Table 2 – SGAM interoperability layers . 16
Table 3 – SGAM domains . 17
Table 4 – SGAM zones . 18
Table 5 – Main (direct) smart grid users related interactions . 25
Table 6 – Main (indirect) smart grid users related interactions . 26
Table 7 – Additional interactions to consider for supporting EV integration. 28
Table 8 – Main interactions between the grid user and the grid operators . 29
Table 9 – Main interactions related to DER operation. 30
Table 10 – Main interactions between the grid user and the service provider and
energy metering . 32
Table 11 – Main interactions between the grid user and the energy market places . 32
Table A.1 – Interfaces under consideration between the grid users and the Utilities . 34
Table A.2 – Supported business processes and use cases when considering interfaces
with utilities . 34
Table B.1 – Interfaces related to DER operation . 40
Table B.2 – Supported business processes and use cases when considering DER
operation . 40

– 6 – IEC SRD 63268:2020 © IEC 2020
Table C.1 – Interfaces under consideration to and from the service providers and
energy metering . 61
Table C.2 – Supported business processes and use cases when considering interfaces

with service providers and energy metering . 61
Table D.1 – Interfaces under consideration to and from the market places . 68
Table D.2 – Supported business processes and use cases when considering interfaces
with market places . 68
Table E.1 – Supported business processes and use cases related to the considered
additional interfaces supporting EV integration . 73
Table F.1 – Advanced metering infrastructure – available standards for smart metering. 80

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ENERGY AND DATA INTERFACES OF USERS CONNECTED TO
THE SMART GRID WITH OTHER SMART GRID STAKEHOLDERS –
STANDARDIZATION LANDSCAPE
FOREWORD
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IEC SRD 63268, which is a Systems Reference Deliverable, has been prepared by IEC systems
committee Smart Energy.
The text of this Systems Reference Deliverable is based on the following documents:
Draft SRD Report on voting
SyCSmartEnergy/136/DTS SyCSmartEnergy/144/RVDTS

Full information on the voting for the approval of this Systems Reference Deliverable can be
found in the report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

– 8 – IEC SRD 63268:2020 © IEC 2020
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INTRODUCTION
One of the main impacts of the smart grid and/or the smart energy grid is the increasing
interactions between the grid users and the other energy-related stakeholders.
The main driver remains the introduction of renewables to the grid which makes the grid
operation much more complex, but other drivers are also the consequences of the digitalization
trend and the coupling with energy efficiency and greener energy trends.
All these new interactions and trends make the interface between grid users and the other
stakeholders more complex, and it is the ambition of this document is to build this new
landscape.
It is in some way very close to the objective of the IEC TR 63097 [1] smart grid standardization
roadmap, with however a clear focus on the area related to interfacing the grid users, and also
the objective to map the roles of the different IEC entities coping with this objective.
This document aims as well at providing an entry point for solving the situation 7.
S‑HBES/BACS-1 of the IEC SRD 63199 SyC Smart Energy development plan established by
the IEC SyC Smart Energy WG 2.
As decided in the Worcester joint IEC SyC SE WG 2/WG 3 meeting, in June 2018, addressing
this point will need to get a global landscape of the grid user interface, and restricted neither to
demand-response type of interface (which is just one type of interface) nor to home and
buildings (except for the internal implementation of DER unit hosted within this grid user, all
interfaces seem common to all types of grid user).
It will serve as well the IEC TR 63097 roadmap update but will also be a source for the SGAM
(IEC SRD 63200 [2]) currently under development by the IEC SyC SE WG 6.

– 10 – IEC SRD 63268:2020 © IEC 2020
ENERGY AND DATA INTERFACES OF USERS CONNECTED TO
THE SMART GRID WITH OTHER SMART GRID STAKEHOLDERS –
STANDARDIZATION LANDSCAPE
1 Scope
This document depicts a comprehensive standardization landscape of the interfaces between
the main grid stakeholders and the grid users, grid users comprising DERs and Customer
Premises.
This document considers the main "physical" and "logical" interactions (i.e. through
wires/functions – power and/or communication) between grid users and grid stakeholders, both
from an electrical standpoint and from a data standpoint. Then for each interaction type, the
document presents the standardization landscape.
This document depicts, as well, the interactions between the grid stakeholders manipulating
grid user related data, themselves. Effectively it appears that considering the sole landscape of
the interfaces between the grid users and the grid would be very limited without considering the
way the data attached to grid users are manipulated/managed within and between the different
stakeholders holding these data. Providing a seamless vision of the management of these data
is becoming of highest priority.
The document focuses exclusively on Distribution grid users, excluding as such "bulk
generation" grid users and "transmission connected grid users", the main reason being that the
main breakthrough resulting from the introduction of distributed energy resources affects mostly
the Distribution grid users.
This document mostly focuses on establishing the standardization landscape for the considered
domain, including the IEC entities involved in producing reports, technical specifications and
standards related to it. From this assessment a first set of recommendations is issued related
to the way IEC addresses this scope.
2 Normative references
There are no normative references in this document.
3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
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

3.1.1
grid user
entity physically connected to the distribution or transmission grid (in SGAM sense, i.e.
connected to an actor attached to the Distribution domain or Transmission domain) to consume,
produce or store energy, either as a primary goal to interact with the grid stakeholders or as a
means to run a process
Note 1 to entry: This document only considers Distribution grid users.
EXAMPLE 1 Typical grid user having as primary goal to interact with the grid stakeholders: entity of the DER SGAM
domain such as a DER plant.
EXAMPLE 2 Typical grid user not having as primary goal to interact with the grid stakeholders and running its own
process: entity of the Customer Premises SGAM domain such as homes, buildings, industries and infrastructures.
3.2 Abbreviated terms
AMI automatic metering infrastructure
BRP balance responsible party
CEM customer energy manager
CHP combined heat and power
CSMS charging stations management system
CSO charging stations operator
DER distributed energy resource
DERMS distributed energy resource management system
DMS distribution management system
DR demand-response
DSO distribution system operator
EMC electro-magnetic compatibility
EMS energy management system
EMSP e-mobility service provider
ERP enterprise resource planning
EV electric vehicle
EVSE electric vehicle supply equipment
H&B home and building
HVAC heating, ventilation and air-conditioning
JTC joint technical committee
LAN local area network
LNAP local network access point
MDM meter data management
NNAP neighbourhood network access point
PV photovoltaic
SC subcommittee
SCADA supervisory, control and data acquisition
SDO standards development organization
SGAM smart energy grid architecture model
SBP strategic business plan
SRD systems reference deliverable
SyC SE systems committee Smart Energy

– 12 – IEC SRD 63268:2020 © IEC 2020
TC technical committee
TF task force
TSO transmission system operator
VPP virtual power plant
V2G vehicle-to-grid
WAN wide area network
4 Executive summary
4.1 General
Interfacing the grid users requires consideration of many kinds of interfaces, with many links
linking them together, and where consistency is key.
This document concludes with many needed improvements on how IEC addresses the situation,
unfortunately with a too much siloed approach. It lists a series of recommendations for better
supporting the domain, and especially by better bridging some IEC activities. This appears to
be a prerequisite for reaching the needed consistency between all IEC productions and limiting
overlaps and different ways for treating the same subjects.
4.2 IEC entities involvement summary
4.2.1 General
Table 1 below summarizes the main IEC entities involved in managing grid user related
interfaces, sorted by type of interface (refers to the interactions breakdown exposed in 5.4).
Cybersecurity is fully part of the considered interfaces, however this aspect is not treated in
this document but fully addressed in IEC Technology Report "Cyber security and resilience
guidelines for the smart energy operational environment" [9] . All references to cybersecurity
standardization activities or standards are thus voluntarily omitted.
NOTE The standards related to non-specific cross-cutting technologies such as EMC, quality, safety, security, low
layers communication protocols, are not considered in this approach. They can be found in the IEC TR 63097 [1]
roadmap document.
___________
Numbers in square brackets refer to the Bibliography.

Table 1 – Summary of IEC entities involved in supporting interfaces of smart grid users
Service
DER grid H&B grid Industry grid Multi-owner
Market providers
Utility users for users for users for microgrid for
places and energy
interfaces operation operation operation operation
IEC entities interfaces metering
purpose purpose purpose purpose
interfaces
(Annex A) (B.3.2) (B.3.3) (B.3.4) (B.3.5) (Annex D) (Annex C)

IEC TC 8/SC 8A X X
IEC SC 8B X X
IEC TC 13 X
IEC TC 23, SC 23K X X
IEC TC 57 WG 13/ WG 14 X X X
IEC TC 57 WG 16  X X
IEC TC 57 WG 17 X X X X X
IEC TC 57 WG 21 X X X X X
a
X X X X X
Ex – IEC PC 118
IEC TC 64 X X X
b
X
IEC TC 65 X
IEC TC 69 X
IEC TC 69/TC 57 JWG 11 X X X X

IEC TC 82 X
IEC TC 88 X X
IEC TC 120 X X
IEC TC 88/TC 57 JWG 25 X X
IEC TC 100 X
ISO/IEC JTC 1/SC 25  X X
b
ISO/IEC JTC 1/SC 41 X
a
IEC PC 118 was disbanded end of 2018.
b
Especially when considering the coming delivery of the IEC TC 65–ISO/IEC JTC 1/SC 41 JWG 17 work.

4.2.2 Main gaps
This list of gaps and their ranking will be developed in a future edition of IEC SRD 63268,
logically worked after the publication of this document.
4.2.3 Standardization entity coordination improvement
The detailed assessment provided in Annex A to Annex E helps identifying some needed
coordination between entities working on the same areas or having de facto common interfaces.
The list below sums up the results of this assessment but also suggests recommendations for
a more consistent standardization approach of the domain. A few of them are marked with a
"high importance" statement, for these cases these interactions are considered as essential for
the production of a consistent set of standards.
1) Coordination between TC 57 WG 13/WG 14 and TC 57 WG 17 mostly around a common
modelling approach of DER from both IEC CIM and IEC 61850 [22] sides. A joint TF is
effectively already in place under IEC TC 57 WG 19 aiming at reaching that goal (results
should be formalized in IEC 62361-102).
2) Coordination between TC 8/SC 8A/SC 8B and TC 95 on grid codes related functions,
especially in frequency measurements. Already in place through the IEC TC 8/TC 85
JWG 12 (joint as well with TC 85 and SC 77A).

– 14 – IEC SRD 63268:2020 © IEC 2020
3) Coordination between TC 8/SC 8A/SC 8B and TC 57 WG 17 on grid codes functions. This
would need a better formalization, although some informal exchanges have already taken
place.
4) Coordination between TC 8/SC 8A/SC 8B. Already in place and formalized in the IEC TC 8
SBP.
5) Coordination between TC 8/SC 8A/SC 8B and TC 64, TC 82, TC 88, TC 120, TC 69 on Grid
code implementation and other grid connection requirements. This coordination process
has started with the establishment of the IEC TC 8 JWG 10 joint with TC 120, TC 82, the
other TCs being in the process of setting up equivalent liaisons.
6) Coordination between TC 57 WG 21, TC 57 WG 17 activities dealing with demand-response
and flexibilities. In that respect the border between the usage of IEC CIM and the usage of
IEC 61850 [22] seems very difficult to position, and thus it is more likely to have both
modelling techniques supporting the same features. Joint meetings between these 2 bodies
took place, however the consistency of their deliveries together with the points addressed
in Annex A would need a real formalization.
7) Coordination between TC 88/TC 57 JWG 25 and TC 57 WG 17. Some joint meetings were
set up and are still to be encouraged.
8) Coordination between TC 69/TC 57 JWG 11 and TC 57 WG 17. Quite active liaisons are
already in place with cross reporting and contribution. However, JWG 11 still suffers from a
lack of representative of experts reflecting the DER aspect of the EV. The problem is known
and mitigation should take place to overcome the issue.
9) High importance. Coordination between TC 57 WG 21, TC 57 WG 17 activities and the
SC 23K and ISO/IEC JTC 1/SC 25 dealing with demand-response and flexibilities. This
would need to be set up.
10) High importance. Coordination between TC 69/TC 57 JWG 11 and SC 23K and
ISO/IEC JTC 1/SC 25, to facilitate the integration of EV and its charging system into a
HBAC/HBES.
11) Coordination between TC 57 WG 21, TC 57 WG 17 to consider hierarchical approach of
DERs/microgrids. Already engaged – refer to 6).
12) Coordination between TC 57 WG 21, TC 57 WG 17 and the SC 23K and ISO/IEC
JTC 1/SC 25 dealing with operating flexibilities inside the building. This would need to be
set up – refer to 9).
13) High importance. Coordination between TC 57 WG 21, TC 57 WG 17 activities and the
IEC TC 65–ISO/IEC JTC 1/SC 41 JWG 17 and dealing with demand-response and
flexibilities. This would need to be set up.
14) Coordination between TC 69/TC 57 JWG 11 and TC 65, to facilitate the integration of EV
and its charging system into industrial process control systems.
15) Coordination between SC 8B and TC 88/TC 57 JWG 25 on operating wind farms in
microgrids.
16) Coordination between SC 8B and TC 57 WG 17 on operating DERs in microgrids.
17) High importance. Coordination between SC 8B and TC 69/TC 57 JWG 11 on operating EVs
in microgrids.
18) Coordination between TC 57 WG 13/WG 14 and WG 16 on metering and market related
services.
19) High importance. Coordination between TC 57 WG 13/WG 14 and WG 21 on metering and
market related services.
20) High importance. Coordination between TC 57 WG 16 and WG 21 on metering and market
related services, with in addition the handling of the specificities of the smart charging of
EV from IEC TC 69/TC 57 JWG 11.
21) Coordination between TC 57 WG 16 and TC 13 on metering related services.
22) Coordination between TC 57 WG 13/WG 14 and TC 13 on metering related services.
23) High importance. Coordination between IEC TC 69/TC 57 JWG 11 and TC 13 for handling
energy and market related services.

24) Coordination between TC 57 WG 21 (and ex IEC PC 118 and TC 57 WG 17) and IEC TC 69
WG 9 on how roaming could impact flexibility management.
25) Coordination between IEC TC 69 WG 9 and I
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