MC/NEMO Announcement | 23-10-2025

Scalability Report 2024

ALL NEMOs have published the Scalability Report 2024. Since this year the report is a standalone publication, available separately from the CACM Annual Report. The report features scalability assessments for both SDAC and SIDC (Continuous trading and IDAs). 

The full report is available here.

MC/NEMO Announcement | 08-10-2025

Successful implementation of 15-Minute MTU in SDAC

The SDAC parties are pleased to confirm that the 15-minute MTU in the Single Day-Ahead Coupling (SDAC) has successfully gone live on 30 September 2025, for delivery day 1 October 2025.

MC/NEMO Announcement | 08-10-2025

15-Minute MTU in the Greek Bidding Zone and on Its Border

The Single Intraday Coupling (SIDC) parties are pleased to announce the successful extension of the 15-minute Market Time Unit (MTU) to the Greek bidding zone and its bidding zone border, effective as of 30 September 2025.

MC/NEMO Announcement | 03-10-2025

AGENDA: Market Coupling Consultative Group Meeting, 23 October 2025

On 23 October 2025 another Market Coupling Consultative Group meeting will be held, where NEMOs, TSOs and Market Participants can discuss and share views on the ongoing work related to the design, development, implementation, and operation of SDAC and SIDC.

The details of the agenda are available here and for the registration – click

MC/NEMO Announcement | 01-10-2025

15-Minute MTU in SDAC was implemented

1 October 2025, SDAC Press Release

The 15-minute Market Time Unit (MTU) in the Single Day-Ahead Coupling (SDAC) has been implemented across all European bidding zones and bidding zone borders on trading day 30 September 2025 for delivery day 1 October 2025.

In line with the agreed go-live process, project parties will closely monitor the stability and robustness of system performance over the coming days of operations. Market participants will be promptly informed of any relevant developments.

About SDAC
SDAC allocates scarce cross-border transmission capacity in the most efficient way by coupling wholesale electricity markets from different regions through a common algorithm, simultaneously taking into account cross-border transmission constraints, thereby maximizing social welfare. The aim of SDAC is to create a single pan European cross zonal day-ahead electricity market. An integrated day-ahead market increases the overall efficiency of trading by promoting effective competition, increasing liquidity, and enabling a more efficient utilization of generation resources across Europe.

For additional information on SDAC go to:
http://www.nemo-committee.eu/sdac 
https://www.entsoe.eu/network_codes/cacm/implementation/sdac/

The pdf version of the press release is available here.

MC/NEMO Announcement | 01-10-2025

Corrective measures in SDAC

“Corrective measures in SDAC” is an explanatory document about the instruments provided by the Algorithm Methodology to handle performance issues, experienced or foreseen in production in the market coupling session. It provides a list of the available measures for 15-min. MTU along with details on how and for how long they are activated.

The pdf version of the document is available on the NEMO Committee website.

MC/NEMO Announcement | 24-09-2025

SDAC Fallback Manual

This comprehensive guide is a collaborative initiative of the NEMOs and TSOs, designed to help companies navigate complex challenges and maintain operational resilience in the event of a SDAC partial or full decoupling.

Applicable as of September 30th, the manual provides essential information on communication channels, fallback procedures, and the operational timelines that are changing with the introduction of the 15-minute Market Time Unit.

The SDAC Fallback Manual is available on the NEMO Committee and ENTSO-E websites.

MC/NEMO Announcement | 12-09-2025

Market Coupling Steering Committee confirms go-live of 15-Minute MTU in SDAC on trading day 30 September 2025

12 September 2025, SDAC Press Release

Following the announcement made on 14 May 2025 regarding the revised go-live date for the 15-minute Market Time Unit (MTU) in the Single Day-Ahead Coupling (SDAC), project parties are pleased to confirm that full readiness has now been successfully achieved. Go-live is therefore scheduled for 30 September 2025 (trading day) for delivery day 1 October 2025.

Comprehensive testing confirms full readiness
A more than a year-long testing campaign for the 15-minute MTU solution, included the validation of local, regional and cross-border functionalities, verification of connectivity between parties and confirmation of overall system readiness. Throughout the campaign, Nominated Electricity Market Operators (NEMOs) and Transmission System Operators (TSOs) tested their systems under a wide range of market conditions. Two iterations of member testing also enabled market participants to confirm the readiness of their own systems.

Collaboration driving readiness for go-live
The successful completion of the testing phases and preceding activities demonstrates effective work across all involved regions. NEMOs and TSOs acknowledge the contributions of all market participants and stakeholders and appreciate their continued engagement in advancing this important market development.

About SDAC
SDAC allocates scarce cross-border transmission capacity in the most efficient way by coupling wholesale electricity markets from different regions through a common algorithm, simultaneously taking into account cross-border transmission constraints, thereby maximizing social welfare. The aim of SDAC is to create a single pan European cross zonal day-ahead electricity market. An integrated day-ahead market increases the overall efficiency of trading by promoting effective competition, increasing liquidity, and enabling a more efficient utilization of generation resources across Europe.

For additional information on SDAC go to:
http://www.nemo-committee.eu/sdac 
https://www.entsoe.eu/network_codes/cacm/implementation/sdac/ 

The pdf version of the press release is available here.

MC/NEMO Announcement | 10-09-2025

XBID: technical interruption in the system from 06.09.2025

We kindly inform you that the NEMO Committee has published an explanation regarding the unplanned extension of the technical interruption in the XBID system that took place on September 6, 2025. 

Please note that the difficulties encountered were caused by problems on the part of the software provider responsible for the functioning of the XBID system. 

Detailed information can be found in the press release available at the following link.

MC/NEMO Announcement | 06-08-2025

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

6 August 2025, SIDC Press Release

As of 5 August 2025, the second Romanian Nominated Electricity Market Operator (NEMO), BRM, is connected to the Single Intraday Coupling (SIDC) Intraday Auctions (IDAs), becoming part of the operational IDA framework launched across Europe in June 2024. The Regional Integration Project (RIP) partners directly involved are BRM, HUPX, IBEX, OPCOM, ESO, MAVIR, and TEL. Their joint effort ensures seamless operation across borders and bidding zones.

This launch marks the second wave of the IDA rollout that began on 13 June 2024, when all NEMOs and Transmission System Operators (TSOs) introduced the pricing of intraday cross-zonal capacity through three pan-European auctions (15:00 D-1, 22:00 D-1, and 10:00 D). By integrating BRM, the SIDC framework reaches another important milestone toward increasing the efficiency of the single European electricity market. Market participants will benefit from a market that becomes more liquid and therefore increasingly competitive, thus maintaining consistency with the single market’s core objectives: efficient, fair, and non-discriminatory market functioning.

Next Steps
Project parties will closely monitor performance and stability during the initial operating period. Future waves will continue to expand geographic coverage and product scope, further enhancing the European Internal Electricity Market.

About SIDC:
The Single Intraday Coupling (SIDC) is a market mechanism in the intraday timeframe defined in the CACM Regulation based on continuous trading and complemented by three intraday auctions (so called “IDAs”).

The SIDC continuous trading solution is based on a common IT system with one Shared Order Book, a Capacity Management Module and a Shipping Module. It allows for orders entered by market participants for continuous matching in one bidding zone to be matched by orders similarly submitted by market participants in any other bidding zone within the European Intraday Coupling as long as transmission capacity is available. The intraday solution supports both explicit allocation (where approved by the respective National Regulatory Authorities) and implicit continuous trading. It is in line with the EU Target model for an integrated intraday market.

In addition, SIDC IDAs allow for the pricing of cross-border capacity in the intraday timeframe. IDAs are implicit auctions where collected orders are matched, and cross-zonal capacity is allocated simultaneously for different bidding zones, determining clearing prices for each bidding zone.

European-wide intraday coupling is a key component for completing the European Internal Energy Market. With the rising share of intermittent generation in the European generation mix, connecting intraday markets through cross-border trading is an increasingly important tool for market parties to keep positions balanced. The purpose of the SIDC is to increase the overall efficiency of intraday trading.

For additional information on SIDC go to:
http://www.nemo-committee.eu/sidc 
https://www.nemo-committee.eu/ida 
https://www.entsoe.eu/network_codes/cacm/implementation/sidc/ 
https://www.entsoe.eu/network_codes/cacm/implementation/ida/ 

The pdf version of the press release is available here.