IDA1: Gate Closure Time for market parties at D-1 15h. Allocated period D

0h-24h

 

IDA2: Gate Closure Time for market parties at D-1 22h. Allocated period D

0h-24h

 

IDA3: Gate Closure Time for market parties at D 10h. Allocated period D

12h-24h





How Does the Algorithm Work?

EUPHEMIA, i.e. the algorithm developed for SDAC, is used for the purpose of IDAs. The public description of EUPHEMIA (applicable to IDA and to SDAC) is available in the following link: https://www.nemo-committee.eu/assets/files/euphemia-public-description.pdf  


High-Level Architecture

  • XBID is used as source of network constraints data for IDA (pre-coupling) and to validate the IDA results in terms of capacity meeting the network constraints (coupling).
  • Network data are provided via NEMOs to EUPHEMIA (auction algorithm).
  • IDA results are submitted to XBID to update the information about Already Allocated Capacity (AAC) in XBID and to reflect in relevant CMM files the existence of capacity reserved for IDA results.
  • IDAs Trading Solution is the same solution as used for day-ahead being adapted for IDAs, depending on each NEMO.
  • IDA CIP is an intermediate system (interface) between XBID and NEMO Systems.


Products & Order Types

IDAs solution supports hourly, half-hourly and quarter-hourly products.

However, for the time being simple orders of only one time resolution are allowed in each BZ.

The products supported by the SIDC IDAs and SDAC algorithms are equivalent; it is the responsibility of each NEMO to decide whether or not to propose optional products. Additional order types  supported include simple block orders, complex block orders, and merit orders.



Resources Available
Information Notes

2025

26 September: SIDC OPSCOM: Report on Automatic Partial Decoupling with Regards to the Intraday Auction (IDA3) for Delivery Date 9th September 2025

27 August: SIDC OPSCOM: Report on Automatic Partial Decoupling with Regards to the Intraday Auction (IDA1) for Delivery Date 25th July 2025

27 August: SIDC OPSCOM: Report on Cancellation of Intraday Auction 2 for Delivery Date 16th July 2025

27 August: SIDC OPSCOM: Report on Automatic Partial Decoupling with Regards to the Intraday Auction (IDA1) for Delivery Date 16th July 2025

27 August: SIDC OPSCOM: Report on Automatic Partial Decoupling With Regards to the Intraday Auction (IDA1) for Delivery Date 13th July 2025

13 August: SIDC OPSCOM Report on Automatic Partial Decoupling with Regards to the Intraday Auction 1 for Delivery Date 4 July 2025

6 August: Successful Integration of Bursa Română de Mărfuri (BRM) into Single Intraday Auction 2nd Go-Live Wave

23 June: SIDC OPSCOM Report on Cancellation with Regards to the Intraday Auction 1 for Delivery Date 3 June 2025

10 June: SIDC OPSCOM Report on Cancellation with Regards to the Intraday Auction 2 for Delivery Date 17 May 2025

16 May: SIDC OPSCOM Report on Automatic Partial Decoupling with Regards to the Intraday Auction (IDA2) for Delivery Date 3 May 2025

12 May: SIDC OPSCOM Report on Cancellation with Regards to the Intraday Auction 1 for Delivery Date 20 April 2025

19 March: SIDC Nears 15-Minute Market Time Unit (MTU) Completion // Activation of Romanian Borders in Intraday Auctions

21 February: SIDC OPSCOM Report on Cancellation with Regards to the Intraday Auction (IDA2) for Delivery Date 4 February 2025

13 February: SIDC OPSCOM Report on Automatic Partial Decoupling with Regards to the Intraday Auction (IDA1) for Delivery Date 1 February 2025

5 February: SIDC OPSCOM Report: Cancellation of Intraday Auction (IDA3) for Delivery Date 22 January 2025

5 February: SIDC OPSCOM Report on Automatic Partial Decoupling with Regards to the Intraday Auction (IDA3) for Delivery Date 17 January 2025

23 January: SIDC Announces the Launch of 15-Minute Products in Several Bidding Zones and Interconnectors


2024