For the purposes of section 6F(3), transmission over a transmission system (or anything forming part of it) takes place during a "commissioning period" if it takes place at any time—
A "completion notice", in relation to a transmission system, is a notice which—
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In this section—
"co-ordination licence" means a licence which authorises a person to co-ordinate and direct the flow of electricity onto and over a transmission system by means of which the transmission of electricity takes place and the whole or part of which is at a place in Great Britain, in the territorial sea adjacent to Great Britain or in a Renewable Energy Zone;
"relevant co-ordination licence holder" means the holder of a co-ordination licence to whom a person has applied (in accordance with any provision made by that licence) for an offer of connection to and use of a transmission system for the purposes of which the tender exercise is held.