Press release
25 October 2021

Bulgaria-Romania Day-Ahead Market Coupling Project is ready for Go-live on 27 October 2021 with first delivery day on 28 October 2021

Following successful completion of all testing activities, the Go-live for the Bulgaria-Romania Day-Ahead Market Coupling Project is reconfirmed for 27 October 2021.

Bulgaria-Romania Market Project consists of the NEMOs and TSOs of Bulgaria and Romania, namely IBEX EAD, OPCOM S.A., ESO EAD and CN Transelectrica S.A, and aims to connect the RO-BG border in the European Single Day-Ahead Market Coupling (SDAC) as foreseen by EU Regulation 2015/1222 CACM (guideline on Capacity Allocation and Congestion Management), allowing implicit allocation of the cross-zonal transmission capacity and the electrical energy.

On behalf of IBEX EAD, OPCOM S.A., CN Transelectrica S.A and ESO EAD

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:



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 25.10.2021