Scoping the Framework Guidelines
on Interoperability Rules for
European Gas Transmission
Geert Van Hauwermeiren
Workshop, Ljubljana, 13 Sept 2011
 FG on Interoperability Rules – update
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A scoping document was prepared in the course
of this summer
Today’s workshop with stakeholders is
organised to determine the scope of the next
Framework Guideline
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 Deadline for submitting feedback is 19th September
Invitation by EC to start drafting the FG is
expected this October
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 Objective of today’s workshop
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Determination of the approach followed for
operational/technical Framework Guidelines;
Determination of the issues that should be part
of the FG on Interoperability Rules for the
European Gas Transmission Networks;
Clarity on the expected level of detail and level
of harmonisation.
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 Structure of today’s workshop
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This presentation will guide us through the document,
with an invitation to intervene after each cluster of
topics, the clusters being:
A. General introduction, definition and application;
B. Organisational interface (Nomination Process,
Interconnection Agreements);
C. Technical interface (Gas quality, Harmonisation of
Units, Capacity Calculation);
D. Communication interface (Data Exchange).
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 Objective of FG on Interoperability Rules
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Smooth cooperation among system operators and
between system operators and system users, agreeing
on technical parameters, writing down operational
procedures and agreeing on the protocol on how to
inform each other.
The procedures of the operational and technical domain
can strongly influence the development of markets.
To ensure and maintain system integrity and the
continuity of supply, system operators do not only have
to invest in infrastructure, but also have to focus on
operational and interconnection agreements.
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 Development of the “scoping” document
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ACER has taken into account :
 Rules governing the internal market;
 The standardisation mandates on gas quality and
biomethane given by the European Commission to
CEN (mandates M/400 and M/475);
 Interoperability papers already developed by
ENTSOG;
 The Common Business Practices (CBPs) developed
by EASEE-gas;
ACER places this work in the context of its work for FGs
(CAM, Balancing as well as in line with Commission
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guidelines on transparency and future CMP).
 Definition of the term “Interoperability”
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Technical definition : “Interoperability refers to the ability
of diverse transmission systems to work together (interoperate) in a technical system operational sense in
order to facilitate the exchange of gas across networks,
taking into account organizational factors that impact
system to system performance and realising simple and
reliable exchange of information between system
operators as well as between system operators and
system users.
Definition from users’ perspective: One overall aim of
interoperability is to ensure that users of transmission
systems in Europe do not face any additional technical,
commercial or operational barriers compared with if the
relevant networks were efficiently operated by a single
entity.”
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 Application of the Framework Guidelines
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The application shall cover :
interconnection points between adjacent
entry/exit systems (so not only on crossborder points)
all other entry and exit points of those
entry/exit systems (e.g. linked to storage,
LNG, production facilities and end consumers
including these exit points which are
connected to distribution systems) where gas
can enter or exit the system.”
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 Questions
..
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Questions to be answered on Definition about:
The understanding of the term “interoperability”;
Clarity to differentiate with other FGs;
The sensibility for a wider scope, e.g. on
“power-to-gas” and “gas-to-power” applications;
Including issues regarding technical and
operational harmonisation for gas systems
including transmission, LNG, storage and
distribution?
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 Questions
.
..
Questions to be answered on Application :
Agreement on the application of this Framework
Guideline;
Alignment with other FGs;
Differentiation on application between issues.
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 Organisational interface
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Nomination Process
 Gas day
 Re-Nomination Regime
 Operational constraints
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Interconnection Agreements
 Matching, Rules for flow control,
Measurement principles of gas quantities
and quality, Rules for allocating measured
gas quantities,...
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 Questions
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Questions to be answered on Nomination Process:
To find agreement on the need to treat this
issue to solve barriers (Identification? Reasons?
Within the scope of this FG?);
To find out if repetition of the gas day definition
is needed (completed towards daylight saving
time);
To identify the link with the FG on emergency
procedures
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 Questions
Questions to be answered on Interconnection
agreements:
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To find agreement on the need to treat this
issue to solve barriers (Identification? Reasons?
Within the scope of this FG?);
Is standardisation of the complete agreement
needed or only detailed harmonisation of a
couple of issues? Or both;
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 Technical interface
..
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Units Harmonisation
Gas Quality
Capacity Calculation
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 Questions
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Questions to be answered on Units Harmonisation:
To find agreement on the need to treat this
issue to solve barriers (Identification? Reasons?
Within the scope of this FG?);
Pressure, Energy, Volume, Temperature, Gross
Calorific Value, and …?;
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 Questions
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Questions to be answered on Gas Quality:
To find out the level of harmonisation that is
needed of certain aspects of gas quality
(parameters, odorisation, biogas, L-gas, ...?);
To find agreement on the need to treat this
issue to solve barriers (Identification? Reasons?
Within the scope of this FG?);
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 Questions
.
.
Questions to be answered on Capacity Calculation:
To find agreement on the need to treat this
issue to solve barriers (Identification? Reasons?
Within the scope of this FG?);
If methods of capacity calculation have to be
further specified?
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 Communication interface
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Data Exchange
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 Questions
.
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Questions to be answered on Data Exchange:
To find agreement on the need to treat this
issue to solve barriers (Identification? Reasons?
Within the scope of this FG?);
Is there room for a broader scope than treated
in the FG CAM?
Shall a specific standard protocol for data
exchange be defined in the Framework
Guideline?
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 Interaction with other FGs
Inclusion or separation of these/other topics, from
other areas specified in Article 8(6) of
Regulation (EC) No 715/2009 :
..
..
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network security and reliability rules;
network connection rules;
third-party access rules;
data exchange and settlement rules; and
operational procedures in an emergency.
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
Thank you for
your attention
www.acer.europa.eu
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