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Since 2012, Unicorn Systems has served as a long-term technology partner to European Nominated Electricity Market Operators (NEMOs) within the Price Coupling of Regions (PCR) initiative. The collaboration focuses on the ongoing development, operation, and technological evolution of the PMB (PCR Matcher Broker) application—a foundational component enabling both the integrated European Single Day-Ahead Coupling (SDAC) and Single Intraday Coupling (SIDC) auction markets.
With its initial production go-live in February 2014, PMB has supported cross-border market coupling across Europe for over a decade, facilitating more than 4,500 market coupling sessions. Notably, in 2025, SDAC recorded zero incidents of full or partial decoupling, and across the entire history of European market coupling, no decoupling incident has ever been attributed to the PMB system.
The Price Coupling of Regions (PCR) initiative was established to create a harmonized, highly efficient European day-ahead electricity market. The core objective is to calculate electricity prices and allocate cross-border transmission capacities uniformly and simultaneously across all participating regions.
To achieve this, European NEMOs required a resilient, distributed integration architecture capable of connecting individual power exchanges, surrounding IT infrastructures, and the central EUPHEMIA price coupling algorithm—all while market volumes and regulatory complexity scaled rapidly.
