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).