In this Part—

• “distribution system” has the same meaning as in Part 1 of the Electricity Act 1989 (see section 4(4) of that Act);

• “electricity system operator licence” has the meaning given by section 167(8);

• “gas” has the same meaning as in Part 1 of the Gas Act 1986 (see section 48(1) of that Act);

• “relevant activity” has the meaning given by section 163(5);

• “relevant licence” means a licence for the purposes of section 4 of the Electricity Act 1989 or section 5 of the Gas Act 1986 (prohibitions on unlicensed activities);

• “transmission system” has the same meaning as in Part 1 of the Electricity Act 1989 (see section 4(4) of that Act).

References in this Part to the distribution, generation, supply or transmission of electricity are to be construed in accordance with section 4(4) of the Electricity Act 1989.

For the purposes of this Part, references to the ISOP’s functions are to any functions that are exercisable by the person for the time being designated as the ISOP (whether they are exercisable in the person’s capacity as the ISOP or in another capacity).