45It is clear from those definitions that, first, a transmission system is an interconnected system used to transport electricity at extra-high and high voltage for sale to final customers or to distributors and, secondly, a distribution system is a system used to transport electricity at high, medium or low voltage for sale to wholesale or final customers (see, by analogy, judgment of 22 May 2008, citiworks, C‑439/06, EU:C:2008:298, paragraph 46, and judgment of 28 November 2018, Solvay Chimica Italia and Others, C‑262/17, C‑263/17 and C‑273/17, EU:C:2018:961, paragraph 29).
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