4.
Text with EEA relevance.
Commission Regulation (EU) 2017/1485 of 2 August 2017 establishing a guideline on electricity transmission system operation (Text with EEA relevance. ) · European Union
If its transmission system is not in normal state and if that system state is qualified as a wide area state the TSO shall: inform all TSOs about the system state of its transmission system via an IT tool for the exchange of real-time data at pan-European level; and provide with additional information on its transmission system elements which are part of the observability area of other TSOs, to those TSOs.
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Source: EUR-Lex (Cellar) · retrieved 2026-11-04 · Text as adopted (Official Journal); later amendments are not incorporated in this text.