(1)This Act may be cited as the Energy Act 2004.
(2)This Act (apart from this section) shall come into force on such day as the Secretary of State may by order appoint; and different days may be appointed for different purposes.
(3)Subject to subsection (4) of this section, this Act extends to Northern Ireland.
(4)The following provisions of this Act do not extend to Northern Ireland—
(a)Chapter 3 of Part 1 (with the exception of section 59 and paragraphs 1, 5, 6, 8, 10(1) and (2) and 11 of Schedule 14);
(b)so much of Part 2 as amends the 1989 Act;
(c)sections 82, 90, 91 and 100; and
(d)Part 3 (with the exception of section 151(5)).