17.—(1) In this Schedule—
“the Authority” means the Northern Ireland Authority for Utility Regulation;
“charging statement” (in relation to a distribution exemption holder who proposes to impose a use of system charge) is to be construed in accordance with paragraph 5(2)(b);
“closed distribution system” means a system classified as a closed distribution system by the Authority under paragraph 11(2);
“customer” means a person who purchases electricity for the person’s own consumption;
“the Energy Order” means the Energy (Northern Ireland) Order 2003;
“expression of interest” has the meaning given by paragraph 1(2);
“household customer” means a customer who purchases electricity for consumption by the customer’s own household;
“system user”, in relation to a distribution system, means—
a person supplying electricity that is being conveyed by means of that distribution system; or
a customer who owns or occupies premises that are connected to that distribution system;
“third party supplier”, in relation to a distribution exemption holder, means any authorised supplier that is not related to the distribution exemption holder; and
“use of system charge”, in relation to a distribution exemption holder, means a charge which—
is levied by the distribution exemption holder on a third party supplier identified in an expression of interest that has been served on the distribution exemption holder; and
is for use of the exempt distribution system to which the expression of interest relates; and
“working day” means any day other than a Saturday, a Sunday, Christmas Day, Good Friday or a day which is a bank holiday in Northern Ireland under the Banking and Financial Dealings Act 1971(1).
(2) For the purposes of this Schedule, a person (“A”) is related to another person (“B”) where A is—
(a)an undertaking in which B has a participating interest within the meaning of section 421A of the Financial Services and Markets Act 2000;(2)
(b)a holding company of B;
(c)a subsidiary of B; or
(d)a subsidiary of a holding company of B.
(3) For the purposes of sub-paragraph (2) “holding company” and “subsidiary” are to be construed in accordance with section 1159 of the Companies Act 2006.(3)