ENTSOG Tariff NC - Implementation Document 2nd Edition

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TAR NC Implementation Document – Second Edition September 2017

REGULATORY PERIOD AND TARIFF PERIOD

Responsibility: subject to national decision based on Article 41(6)(a) of the Gas

Directive

The TAR NC distinguishes between the concepts of ‘regulatory period’ and ‘tariff

period’. The regulatory period is a more general concept, for which

‘the general rules

for the allowed or target revenue are set’

, while the tariff period stands for the time

period

‘during which a particular level of reference price is applicable’

The TAR NC also sets out the rules regarding the interrelation between the two

concepts in terms of their duration. The tariff period is normally shorter than the

regulatory period, and one regulatory period comprises several tariff periods. The

tariff period may also coincide with the regulatory period, but one tariff period will

never be associated with more than one regulatory period. In Austria and Belgium

both the regulatory period and tariff period last four years, in Slovakia they last five

years, while in Poland and Sweden they last only one year.

Figures 9 and 10 show different regulatory periods and tariff periods in the MSs

whose TSOs are ENTSOG Members

. No information appears for the MSs whose

TSOs are ENTSOG’s Associated Partners. As part of the implementation of the

TAR NC, the NRA may decide to change the tariff period and the regulatory period.

The Maps below reflect the situation as of September 2017.

1) See ENTSOG’s website for the list of Members, Associated Partners and Observers:

www.entsog.eu/members

ARTICLE 3(5)

AND 3(23)

max transmission

tariff based on revenue

sum of

expected

transmission and

non-transmission services revenue

for the provision of services by TSO

for a specific period in a regulatory

period

sum of expected transmission and

non-transmission services revenue

for the provision of services by TSO

for a specific period in a regulatory

period

which TSO is entitled to obtain

revenue

regulatory regime

price cap regime

target revenue

allowed revenue

non-price cap regime

What is set per Article 41(6)(a)

of the Gas Directive?

How is the TSO revenue defined?

Figure 8:

TAR NC regulatory regimes