# Commission Regulation (EU) No 774/2010 of 2 September 2010 on laying down guidelines relating to inter-transmission system operator compensation and a common regulatory approach to transmission charging (Text with EEA relevance), Division 1.5: Transit of electricity shall be calculated, normally on an hourly basis, by taking the lower of the absolute amount of imports of electricity and the absolute amount of exports of electricity on interconnections between national transmission systems.

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

For the purpose of calculating transits of electricity the amount of imports and the amount of exports at each interconnection between national transmission systems shall be reduced in proportion to the share of capacity allocated in a manner which is not compatible with the Point 2 guidelines on congestion management set out in Annex of Regulation (EC) No 1228/2003.
Notwithstanding the provisions of the second subparagraph of this point imports and exports of electricity on interconnections with third countries to which the provisions of point 7.1 apply shall be included in the calculation of transit of electricity.

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Source: https://www.legislation.gov.uk/eur/2010/774/annex/part/A/division/1/division/1.5 (the official version)
Page: https://openlegislation.uk/eu-regulation-2010-774/annex/part-A/division-1/division-1.5
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.