The Energy Act 2004 (c 20) is an Act of the Parliament of the United Kingdom concerned with nuclear power, renewable and sustainable energy and energy regulation. Royal assent was granted on 22 July 2004. Part 1 Chapter 1 Section 10 Section 10(2)(b) was substituted by paragraph 5 of Schedule 6 to the Environmental Authorisations (Scotland) Regulations 2018 (SI 2018/219). Section 29 Sections 29(1)(b) and (c) were substituted by section 99(2)(b) of the Finance Act 2006. New sections 29(3) and (3A) were substituted for sections 29(3) and (4) by section 99(3) of the Finance Act 2006. Section 29(5A) was inserted by section 99(5) of the Finance Act 2006. Section 30 Section 30(1)(b) was substituted by section 100(2)(a) of the Finance Act 2006. Section 30(1)(d) was inserted by section 100(2)(c) of the Finance Act 2006. Section 30(3) was substituted by section 100(3) of the Finance Act 2006. Chapter 2 Section 44 Section 44(2)(d) was substituted by paragraph 436(b) of Schedule 1 to the Corporation Tax Act 2010. Section 44(2)(f) was substituted by paragraph 436(d) of Schedule 1 to the Corporation Tax Act 2010. Chapter 3 Section 55 Section 55(5) was inserted by paragraph 11 of Schedule 7 to the Policing and Crime Act 2009. Section 56A This section was inserted by paragraph 3 of Schedule 2 to the Criminal Justice (Scotland) Act 2016 (Consequential Provisions) Order 2018 (SI 2018/46). Section 57 This section was repealed by section 115(2) of, and Part 4 of Schedule 10 to, the Protection of Freedoms Act 2012. Section 59 Paragraph (aa) of the definition of "chief officer" in section 59(3) was inserted by paragraph 44(2)(a)(ii) of Schedule 2 to the Police and Fire Reform (Scotland) Act 2012 (Consequential Provisions and Modifications) Order 2013 (SI 2013/602). Paragraphs (c) and (d) of the definition of "chief officer" in section 59(3) were repealed by Part 2 of Schedule 17 to the Serious Organised Crime and Police Act 2005. Paragraph (aa) of the definition of "relevant force" in section 59(3) was inserted by paragraph 44(2)(b)(ii) of Schedule 2 to the Police and Fire Reform (Scotland) Act 2012 (Consequential Provisions and Modifications) Order 2013. Paragraphs (c) and (d) of the definition of "relevant force" in section 59(3) were repealed by Part 2 of Schedule 17 to the Serious Organised Crime and Police Act 2005. Section 59A This section was inserted by paragraph 199 of Schedule 4 to the Serious Organised Crime