# Commission Regulation (EU) 2017/1485 of 2 August 2017 establishing a guideline on electricity transmission system operation (Text with EEA relevance), Article 189: Information on RR

Extent: E+W+S+N.I.

1. All TSOs of each LFC block that operates a reserve replacement process shall publish the RR availability requirements specified in accordance with Article 161(2) and the technical requirements for the connection specified in accordance with Article 161(3) for their LFC block available ... within 3 months before their applicability.
2. All TSOs of the GB synchronous area shall publish, by 30 November of each year, an outlook of the reserve capacities RR of each LFC block for the following year ....
3. All TSOs of the GB synchronous area shall publish, within 30 days after the end of the quarter, the actual reserve capacities RR of each LFC block of the past quarter ....

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Source: https://www.legislation.gov.uk/eur/2017/1485/article/189 (the official version)
Page: https://openlegislation.uk/eu-regulation-2017-1485/article-189
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.