Updated to 16 September 2025 (Act No. 10 of 2025 and S.I. No. 432 of 2025)

All effects below are reflected in the most recent Revised Act.

Contents

Commencement

Section Commencement/Effective Date
Where the commencement and effective dates differ, the effective date is shown below.
Commencement Information
Whole Act 27 February 2002 Commenced on enactment

Amendments and other effects

How Affected Affecting Provision Affecting Provision Commencement/Effective Date
Where the commencement and effective dates differ, the effective date is shown below.
Commencement Source
Trans. of cert. functs. under. S.I. No. 418 of 2011, arts. 1(2), 3 & sch. 1 29 July 2011 Finance (Transfer of Departmental Administration and Ministerial Functions) Order 2011 (S.I. No. 418 of 2011), art. 1(2)
  S.I. No. 300 of 2002, arts. 1 (2), 4 (1)(a) & sch. part 1 18 June 2002 Communications, Energy and Geological Survey of Ireland (Transfer of Departmental Administration and Ministerial Functions) Order 2002 (S.I. No. 300 of 2002), art. 1 (2),
S. 6(1)(f) amended S.I. No. 76 of 2022, reg. 12(a) 15 February 2022 European Union (Renewable Energy) Regulations 2022 (S.I. No. 76 of 2022)
S. 6(1)(g) inserted S.I. No. 76 of 2022, reg. 12(b) 15 February 2022 European Union (Renewable Energy) Regulations 2022 (S.I. No. 76 of 2022)
S. 10(3)(c) substituted 12/2016, ss. 1(2), 25(a) 7 October 2016 Energy Act 2016 (Commencement of Certain Provisions) Order 2016 (S.I. No. 509 of 2016), art. 2(c)
S. 10(9) substituted 12/2016, ss. 1(2), 25(b) 7 October 2016 Energy Act 2016 (Commencement of Certain Provisions) Order 2016 (S.I. No. 509 of 2016), art. 2(c)
S. 10(10) substituted 12/2016, ss. 1(2), 25(c) 7 October 2016 Energy Act 2016 (Commencement of Certain Provisions) Order 2016 (S.I. No. 509 of 2016), art. 2(c)
S. 10(11), (12) deleted 12/2016, ss. 1(2), 25(d) 7 October 2016 Energy Act 2016 (Commencement of Certain Provisions) Order 2016 (S.I. No. 509 of 2016), art. 2(c)
S. 10(17) amended 12/2016, ss. 1(2), 25(e) 7 October 2016 Energy Act 2016 (Commencement of Certain Provisions) Order 2016 (S.I. No. 509 of 2016), art. 2(c)
S. 18(2) am. 24/2010, ss. 1(2), 97 and schedule, pt. 1, item 34 1 January 2011 Civil Partnership and Certain Rights and Obligations of Cohabitants Act 2010 (Commencement) Order 2010 (S.I. No. 648 of 2010), art. 3
Transfer of functions under 10/2011, ss. 1(2), 6, 9, 20 & sch. 2 part 1 6 July 2011 Ss. 1(2) & 6. Day appointed by Ministers and Secretaries (Amendment) Act 2011 (Appointed Day) Order 2011 (S.I. No. 401 of 2011), art. 2
S. 24(1) substituted 12/2016, ss. 1(2), 26 7 October 2016 Energy Act 2016 (Commencement of Certain Provisions) Order 2016 (S.I. No. 509 of 2016), art. 2(c)

SIs made under the Act

SectionSIs made under the Act
S. 3 Sustainable Energy Act 2002 (Establishment Day) Order 2002 (S.I. No. 655 of 2002)
S. 8(2) Sustainable Energy Act 2002 (Section 8(2)) (Conferral of Additional Functions - Reporting of National Energy Statistics and Electricity and Natural Gas Prices) Regulations 2024 (S.I. No. 151 of 2024)
  Sustainable Energy Act 2002 (Conferral of Additional Functions-Energy Efficiency) Order 2022 (S.I. No. 668 of 2022)
  Sustainable Energy Act 2002 (Conferral of Additional Functions — Renewable Energy) (Amendment) Order 2014 (S.I. No. 482 of 2014)
  Sustainable Energy Act 2002 (Section 8(2)) (Conferral of Additional Functions — Renewable Energy) Order 2012 (S.I. No. 158 of 2012)
  Sustainable Energy Act 2002 (Section 8(2)) (Conferral of Additional Functions - Renewable Energy) Order 2011 (S.I. No. 148 of 2011)