European Network of Transmission System Operators for Electricity
The European Network of Transmission System Operators for Electricity (ENTSO-E) is an association representing 40 electricity transmission system operators (TSOs) from 36 countries across Europe, thus extending beyond EU borders. It manages the Continental Europe Synchronous Area (CESA).
Source: Wikipedia — European Network of Transmission System Operators for Electricity (CC BY-SA 4.0)