Regions & Geography
The European grid is divided into Capacity Calculation Regions (CCRs) to manage cross-border flows efficiently.
The European electricity grid is highly interconnected, with power flowing across national borders continuously. To manage this complexity, Europe is divided into Capacity Calculation Regions (CCRs) - groups of neighboring countries that coordinate their transmission capacity calculations.
Flow-Based CCRs
Core region uses advanced Flow-Based calculation, modeling the physical grid to maximize capacity.
NTC CCRs
Nordic, Italy North, SWE, and others use simpler NTC (bilateral limits) for capacity calculation.
Blue markers indicate major bidding zones. The European grid is one of the most interconnected power systems in the world, with over 400 GW of cross-border transmission capacity.
The Core CCR is the largest and most centrally located region in Europe. It implemented Flow-Based Market Coupling in June 2022, replacing the less efficient NTC method. This region is characterized by a highly meshed grid where power flows don't follow political borders.
Member Countries & Bidding Zones:
Total Capacity
~700 GW
Estimated installed capacity (approximate)
Cross-Border Capacity
116-167 GW
Europe-wide (2024 → 2030 target)
CNECs Monitored
~1000+
Critical network elements
France ↔ Germany
Often congested during winter
Germany ↔ Netherlands
High renewable flows
Belgium ↔ France
Bidirectional flows
Austria ↔ Germany
Alpine hydro exports
Poland ↔ Germany
Loop flows from coal