OPCOM

Press release

27 October 2021: Closing the loop – inclusion of the Bulgarian-Romanian border into the Single Day-Ahead Coupling (SDAC)

With the inclusion of the Bulgarian-Romanian border, a geographical loop has been closed and the Southeast Europe (SEE) region is now fully integrated in the Single Day-Ahead Coupling. This marks yet another major milestone in the process of integrating the European day-ahead power markets.

Market coupling operations for the Bulgarian-Romanian border in SDAC were successfully launched today, Wednesday 27th October 2021, with first delivery day 28thOctober 2021.

Today, for the first time, day-ahead cross-zonal capacity between Romania and Bulgaria has been implicitly allocated via the Euphemia algorithm. The implemented price coupling allows for the simultaneous calculation of electricity prices and cross-border flows across the region. The efficient use of the power system and cross-border infrastructures, brought about by stronger coordination between energy markets, aims to maximise social welfare to the benefit of all market participants.

Integration of the Bulgarian-Romanian bidding zone border into SDAC marks yet another major achievement in the completion of the European target model. In addition to the HVDC interconnection between Greece and Italy, the Greek and Bulgarian day-ahead markets are now also connected northbound via the Bulgarian-Romanian border with SDAC.

This successful coupling is the result of close collaboration between the Bulgarian and Romanian parties NEMOs and TSOs, namely IBEX, OPCOM, ESO and Transelectrica, together with the respective NRAs.

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 maximising 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 utilisation 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/

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About OPCOM

OPCOM is the Romanian Electricity and Gas Market Operator. Since 2000, OPCOM has been committed to strengthen a marketplace where energy and environmental certificates are traded in conditions of transparency and integrity. Today, the trading portfolio offered by OPCOM ranges from electricity products to gas products, as well as green certificates. More than 900 companies are using the products available for trading on short-term electricity, gas and green certificates markets as well as on term markets for electricity, gas and green certificates bilateral contracts. In addition to this role, OPCOM is responsible for settlement of the transactions concluded on short-term energy markets, Balancing Market as well as the Imbalances of the Balancing Responsible Parties. OPCOM also manages the Green Certificates Register. Today, OPCOM is acting as Registered Reporting Mechanism under REMIT managing more than 480 reporting agreements on its electricity and gas markets. OPCOM was designated by the Romanian Energy Regulatory Authority as Nominated Electricity Market Operator (NEMO) in accordance with the Regulation (EU) 2015/1222 for fulfilling tasks related to the coupling of the day-ahead and intraday markets.

OPCOM applies the Quality Management System complying with ISO 9001 - SR EN ISO 9001, respectively the Information Security Management System complying with ISO/IEC 27001 - SR EN ISO/IEC 27001, both systems being certified by Lloyd's Register LRQA.

For more information about OPCOM, please visit us at www.opcom.ro .

PRESS RELEASE 27.10.2021