2.
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
Where applicable, all TSOs of a synchronous area shall define in the synchronous area operational agreement the methodology to correct the electrical time deviation, which shall include: the time ranges within which TSOs shall endeavour to maintain the electrical time deviation; the frequency setpoint adjustments to return electrical time deviation to zero; and the actions to increase or decrease the average system frequency by means of active power reserves.
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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.