PART 2The Scheme: introductory

Calculation of a relevant supplier’s number of GB domestic customers on preceding 31st December5

1

A relevant supplier must notify the Authority of the number of that supplier’s GB domestic customers on the preceding 31st December by—

a

the 21st day after the commencement day;

b

1st February, in 2023, 2024 and 2025.

2

In this regulation “relevant supplier” means—

a

a licensed electricity supplier17; or

b

a licensed gas supplier18 who, on the preceding 31st December, was connected to a licensed electricity supplier.

3

If a relevant supplier does not notify the Authority in accordance with paragraph (1), the Authority must determine the supplier’s number of GB domestic customers on the preceding 31st December.

4

But if—

a

before the commencement day, a relevant supplier has notified the Authority of the number of that supplier’s GB domestic customers on 31st December 2021 (the “original notification”); and

b

the relevant supplier does not notify the Authority in accordance with paragraph (1)(a) of a change in the number of that supplier’s GB domestic customers,

the Authority must treat the original notification as the relevant supplier’s notification under paragraph (1)(a).

5

For the purposes of paragraphs (1) to (4), a relevant supplier’s number of GB domestic customers on the preceding 31st December is the number of GB domestic customers to whom the supplier supplies—

a

electricity (other than as part of the supply of dual fuel);

b

gas (other than as part of the supply of dual fuel); and

c

dual fuel,

on that date.

6

For the purposes of paragraph (5)—

a

dual fuel” means electricity and gas, where both are supplied to a GB domestic customer at the same domestic premises by a person who is both a licensed electricity supplier and a licensed gas supplier;

b

a supply of dual fuel to a GB domestic customer is to be treated as a supply to two GB domestic customers.

7

For the purposes of the remaining provisions of these Regulations, a reference to a supplier’s number of GB domestic customers is a reference to that supplier’s number of GB domestic customers as notified, or treated as notified, under paragraph (1) or, as the case may be, determined under paragraph (3).