ITC, Inter TSO Compensation mechanism

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6 Νοε 2013 (πριν από 4 χρόνια και 2 μέρες)

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ITC, Inter TSO Compensation mechanism

TCMF 22 June 2006

Why we need to join


National Grid is required to comply with the Regulations


Regulation 1228/2003 allows for binding guidelines dealing
with a number of issues


Tariff Harmonisation


Congestion management


ITC scheme


ERGEG recently consulted on guidelines for an ITC
scheme


National Grid is required to join ITC when guidelines
become active


Proposed implementation date 1 January 2007


The proposed scheme


Three elements


Costs


Existing costs v’s LRAIC


Infrastructure


IMICA


Losses


WWT


Infrastructure principles


Improved ETSO scheme


Compensation cost reflective
-

MWkm impact


more accurate contributions


Removing payment for causing loop flows


Sensitivity factors for each combination


E.g. France to Portugal


effect on Spain


Compensation based on ‘reference exchanges’


Compensation and contribution calculated simultaneously


Minimum of 72 snapshots

Losses principles


Based on ‘with & without transits’


Compensation


Calculate losses with transit


Calculate losses without transit


Multiply difference by a reference price


Calculated in isolation


Based on a minimum of 72 snapshots


Contribution


Based on metered imports and exports


Socialised


centrally calculated

Review charging methodology


Required to take account of regulation in ‘charges for
network access’


Consistency with ITC principles


Currently



Interconnector Owners charged on same basis as
generators and suppliers


Under ITC scheme


ITC provides compensation for transits


Need to review GB charges for transit


Not all imports and exports lead to transits

Initial proposal


Adjust the TNUoS charge for interconnected
parties:


Establish transit


Based on average hourly flow


Subtract from chargeable TEC


Subtract from chargeable demand


Additional rules for more than 2
interconnectors


CISG comment on proposals

Issues


Rules for sharing transit


How to manage January to March…


When to consult (ERGEG next meeting 5 Oct)


Not enough certainty to consult prior to this


European commission & comitology