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Intraday Cross-Zonal Gate Opening Time (IDCZGOT)

 

 

 

'Intraday Cross-Zonal Gate Opening Time' (IDCZGOT) means the point in time where cross-zonal capacity between bidding zones is released for a given market time unit and a given bidding zone border (Article 2(38) of the Regulation establishing a Guideline on Capacity Allocation and Congestion Management - CACM (Regulation on market coupling).

 

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Decision of Agency of Cooperation of Energy Regulation No 04/2018 of 24 April 2018 on all Transmission System Operators’ Proposal for Intraday Cross-Zonal Gate Opening and Intraday Cross-Zonal Gate Closure Times

 

Annex I

 

ACER adopts a decision on intraday cross-zonal gate opening and closure time, 7 May 2018

 

The Agency decided that the intraday cross-zonal market on all EU bidding zone borders shall open at 15:00 market time day-ahead (from 1 January 2019 onwards or one month after the approval of of the intraday capacity calculation methodology, whichever comes later).

The harmonisation of the IDCZGOT is a key element of an efficient Single Intraday Coupling (SIDC).

 

Pursuant to the All Transmission System Operators’ (TSOs') proposal od 18 April 2016 for intraday cross-zonal gate opening and gate closure times (Draft for consultation, Article 4, p. 5) Intraday Cross-Zonal Gate Opening Time was proposed to be 22.00 market time day ahead. 

 

However, ACER supported the establishment of a EU-wide harmonised IDCZGOT at 15:00 D-1 (Intraday Cross-Zonal Gate Opening and Gate Closure Times, ACER’s Consultation document, PC_2018_E_01, 9 January 2018, p. 5).

 

The amended TSO’s proposal defined regionally (CCR) harmonised IDCZGOTs for bidding zone borders ranging from 15:00 market time day-ahead to 22:00 market time day-ahead.

 

The final detemination in this regard was made in the Decision of Agency of Cooperation of Energy Regulation No 04/2018 of 24 April 2018 on all Transmission System Operators’ Proposal for Intraday Cross-Zonal Gate Opening and Intraday Cross-Zonal Gate Closure Times.

 

In the said Decision the Agency decided that, the intraday cross-zonal market on all bidding zone borders shall open at 15:00 market time day-ahead.

 

The ACER’s Decision established the harmonised IDCZGT just after the end of the day-ahead timeframe and the IDCZGCT 60 minutes before real time.

 

This, in the ACER’s opinion, provides ample time for market participants to trade across bidding-zone borders in the European Union.

 

Moreover, the said Decision enables all market participants in the European Union to have access to available cross-zonal capacities within the same period.

 

The above harmonised IDCZGOT is defined as the starting time for the SIDC operation and the time when TSOs start releasing cross-zonal capacity.

 

The necessary condition for the implementation of the harmonised IDCZGOT is the approval of the intraday capacity calculation methodology (this methodology determines how much cross-zonal capacity TSOs are able to offer at the IDCZGOT in order to comply with the operational security).

 

This is the reason why the implementation date of harmonised IDZCGOT has been indicated by the ACER as 1 January 2019 or one month after the approval of of the intraday capacity calculation methodology, whichever comes later.

 

Within the legal framework of the CACM Regulation the gate opening for intraday trading within the bidding zone and for complementary regional intraday auctions in accordance with Article 63 of the CACM Regulation are outside the scope of the ACER’s Decision on IDCZGOT.

 

In the reasons to the said Decision the Agency indicated that although the EU-wide harmonisation of IDCZGOTs is not explicitly required by Article 59 of the CACM Regulation, the harmonisation is needed to meet the objectives of the CACM Regulation.

 

Moreover, the Agency finds it important that the TSOs and regulatory authorities strive towards the harmonisation of all the related timelines such that internal and cross-zonal intraday gate opening times gradually converge towards the target solution of 15:00 market time day-ahead.

 

In the ACER’s view the harmonisation of the IDCZGOTs is essential to avoid discrimination in the time of access to the network between, on the one hand, market participants trading across bidding zones and thus requesting access to cross-zonal capacity and, on the other hand, market participants trading inside bidding zones and thus requesting access to internal network.

 

Since this discrimination will exist until all internal intraday gate opening times - which are not in the scope of the said ACER’s Decision No 04/2018 – in all bidding zones are equal to the IDCZGOT, the Agency finds it important that timeframe for cross-zonal trade should be aligned with the timeframe for trading inside bidding zones to the maximum extent possible.

 

Finally, the IDCZGOTs, as proposed in the TSO’s amended proposal, would imply a difference of seven hours between the earliest IDCZGOT and the latest IDCZGOT in the various CCRs.

 

This would, in the Agency’s view, have generally disruptive effect on the operation of the intraday market and would create a confusion among market participants to organise their activities and, in particular, to understand price formation at a specific moment.

 

ACER concluded that the intraday cross-zonal gate opening time 15:00 market time day-ahead represents a balance between the need for some market participants, on the one hand, to finalise their processes (e.g. portfolio optimisation, scheduling), resulting from the day-ahead market and, on the other hand, to adjust their day-ahead positions in the intraday market as soon as possible.

 

 

 

CACM Regulation 

 

Article 59

 

1. By 16 months after the entry into force of this Regulation, all TSOs shall be responsible for proposing the intraday cross-zonal gate opening and intraday cross-zonal gate closure times. The proposal shall be subject to consultation in accordance with Article 12.

 


2. The intraday cross-zonal gate closure time shall be set in such a way that it: 


 

(a) maximises market participants' opportunities for adjusting their balances by trading in the intraday market time-frame as close as possible to real time; and

 


(b) provides TSOs and market participants with sufficient time for their scheduling and balancing processes in relation to network and operational security.

 


3. One intraday cross-zonal gate closure time shall be established for each market time unit for a given bidding zone border. It shall be at most one hour before the start of the relevant market time unit and shall take into account the relevant balancing processes in relation to operational security.

 


4. The intraday energy trading for a given market time unit for a bidding zone border shall start at the latest at the intraday cross-zonal gate opening time of the relevant bidding zone borders and shall be allowed until the intraday cross-zonal gate closure time.

 


5. Before the intraday cross-zonal gate closure time, market participants shall submit to relevant NEMOs all the orders for a given market time unit. All NEMOs shall submit the orders for a given market time unit for single matching immediately after the orders have been received from market participants.

 

6. Orders matched in single intraday coupling shall be considered firm.

 

7. MCO functions shall ensure the anonymity of orders submitted via the shared order book.

 

Article 51(1)

 

From the intraday cross-zonal gate opening time until the intraday cross-zonal gate closure time, the continuous trading matching algorithm shall determine which orders to select for matching such that matching: (...)

 

Article 58(1)

 

Each coordinated capacity calculator shall ensure that cross-zonal capacity and allocation constraints are provided to the relevant NEMOs no later than 15 minutes before the intraday cross-zonal gate opening time.

 

Article 63(2)

 

Complementary regional intraday auctions may be implemented within or between bidding zones in addition to the single intraday coupling solution referred to in Article 51. In order to hold regional intraday auctions, continuous trading within and between the relevant bidding zones may be stopped for a limited period of time before the intraday cross-zonal gate closure time, which shall not exceed the minimum time required to hold the auction and in any case 10 minutes.

 

Article 63(4)(d)

 

the timetables for regional auctions shall be consistent with single intraday coupling to enable market participants to trade as close as possible to real-time.

 

 

 

 

 

 

 

IMG 0744

    Documentation    

 

 

 

 

 

Decision of Agency of Cooperation of Energy Regulation No 04/2018 of 24 April 2018 on all Transmission System Operators’ Proposal for Intraday Cross-Zonal Gate Opening and Intraday Cross-Zonal Gate Closure Times

 

Annex I

 

Regulation establishing a Guideline on Capacity Allocation and Congestion Management - CACM (Regulation on market coupling), Articles 2(38), 51(1), 58(1), 59, 63(2), 63(4)(d)

 

All TSOs' proposal for intraday cross-zonal gate opening and gate closure times in accordance with Article 59 of Commission Regulation (EU) 2015/1222 of 24 July 2015 establishing a guideline on capacity allocation and congestion management, 18 April 2016 – Draft for consultationArticle 4, p. 5

 

Intraday Cross-Zonal Gate Opening and Gate Closure Times, ACER’s Consultation document, PC_2018_E_01, 9 January 2018

 

 

 

 

 

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    Links    

 

 

 

 

 

Intraday Cross-Zonal Gate Closure Time (IDCZGCT)

 

Day-ahead firmness deadline (DAFD)

 

 

 

 

 

 

 

 

 

 

Last Updated on Monday, 11 June 2018 19:34
 

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