# Commission Regulation (EU) 2017/1485 of 2 August 2017 establishing a guideline on electricity transmission system operation (Text with EEA relevance), Article 99: Final year-ahead availability plans

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

1. Before 1 December of each calendar year, each TSO shall:
(a) finalise the year-ahead outage coordination of internal relevant assets; and
(b) finalise the year-ahead availability plans for internal relevant assets ...
2. Before 1 December of each calendar year, the TSO shall provide to its outage planning agent the final year-ahead availability plan of each internal relevant asset.
3. Before 1 December of each calendar year, the TSO shall provide to the relevant DSO the final year-ahead availability plan for each internal relevant asset located in a distribution system.
4. Before 1 December of each calendar year, the TSO shall provide to the relevant CDSO the final year-ahead availability plan for each internal relevant asset located in a closed distribution system.

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Source: https://www.legislation.gov.uk/eur/2017/1485/article/99 (the official version)
Page: https://openlegislation.uk/eu-regulation-2017-1485/article-99
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.