ENTSOG Tariff NC - Implementation Document 2nd Edition

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TAR NC Implementation Document – Second Edition September 2017 | 13
INTERACTION WITH OTHER NETWORK
CODES AND GUIDELINES
As indicated above, Article 8(6) of the Gas Regulation identifies possible areas for
the development of NCs, most of which are now covered by existing NCs. The
TAR NC covers ‘rules regarding harmonised transmission tariff structures’ in point (k).
All NCs constitute and form integral parts of the Gas Regulation; its consistent and
coherent implementation requires due consideration of the interactions between the
Gas Regulation and any given NC, and between NCs. The TAR NC interacts with
other NCs and Guidelines1) as follows:
\\Amended CAM NC: certain rules of the TAR NC refer specifically to
interconnection points (‘IP’), subject to the Amended CAM NC. The listed rules
in the TAR NC address tariff-related issues of the Amended CAM NC: Chapter
III ‘Reserve prices’, Chapter V ‘Pricing of bundled capacity and capacity at
virtual interconnection points (‘VIP’)’, Chapter VI ‘Clearing and payable price’,
Article 28 on discounts, multipliers and seasonal factors from Chapter VII
‘Consultation requirements’, Article 31(2)–(3) on publication of certain tariff
information on ENTSOG’s Transparency Platform (‘TP’) from Chapter VIII
‘Publication requirements’ and Chapter IX ‘Incremental capacity’. The Amend-
ed CAM NC governs the process for offering incremental capacity, while the
TAR NC sets out the tariff principles for incremental capacity.
\\Transparency Guidelines: Chapter VIII ‘Publication requirements’ sets out tariff
transparency obligations that further elaborate and harmonise the tariff trans-
parency obligations in the Transparency Guidelines.
\\BAL NC: the TAR NC treats the balancing activity of a TSO as a ‘third’ service
category independent of transmission and non-transmission services. Balancing
costs receive separate treatment given the application of a neutrality mechanism
under the BAL NC.
\\INT NC: the TAR NC incorporates all the definitions introduced by the INT NC.
\\Chapter 2.2 of Annex I to the Gas Regulation (‘CMP Guidelines’): although the
Gas Regulation defines physical and contractual congestion, there is an indirect
link between the TAR NC and the CMP Guidelines. The CMP Guidelines
stipulate the detailed measures for solving contractual congestion, which can
affect the TSO’s revenue recovery, as when implementing an oversubscription
and buy-back procedure.
As for definitions, the TAR NC incorporates those employed in Directive 2009/73/EC
(‘Gas Directive’)2), the Gas Regulation, and other NCs: the Amended CAM NC, the
BAL NC and the INT NC. For ease of reference, ENTSOG has published a compre-
hensive list of all such definitions3).
1) For further information on the EC Guidelines, see Article 23 of the Gas Regulation.
2) Directive 2009/73/EC of the European Parliament and of the Council of 13 July 2009 concerning common rules for the
internal market in natural gas and repealing Directive 2003/55/EC (OJ L 211, 14.8.2009, p. 94).
3)