PART 1 Introduction

Citation, commencement and extent

1.—(1) This Order may be cited as the Electricity and Gas (Energy Company Obligation) (Amendment, Saving and Transitional Provisions) Order 2025.

(2) This Order comes into force on 29 July 2025.

(3) This Order extends to England and Wales and Scotland.

PART 2 Amendment to the Electricity and Gas (Energy Company Obligation) Order 2022

Amendment to the Electricity and Gas (Energy Company Obligation) Order 2022

2. The Electricity and Gas (Energy Company Obligation) Order 2022(4) is amended in accordance with this Part.

Amendment to article 2 (interpretation)

3. In article 2, in paragraph (1)—

(a)for the definition of “Reduced Data Standard Assessment Procedure” substitute—

““Reduced Data Standard Assessment Procedure” means the methodology set out in the document titled “BRE RdSAP10 Specification (February 2024)”(5);”;

(b)after the definition of “rural area” insert—

““SAP10.2” means the Government’s Standard Assessment Procedure for Energy Rating of Dwellings (2023 Edition, version 10.2)(6);

“SAP2012” means the Government’s Standard Assessment Procedure for Energy Rating of Dwellings (2012 Edition, version 9.92)(7);”;

(c)for the definition of “Standard Assessment Procedure” substitute—

““Standard Assessment Procedure”, except in articles 39 and 70, means either of—

Amendment to article 39 (approval as a data light measure or standard alternative methodology measure)

4. In article 39, after paragraph (4), insert—

“(5) In this article, “the Standard Assessment Procedure” means—

(a)SAP2012, and

(b)SAP10.2.”.

Amendment to article 49 (requirements for a full project score: overview)

5. In article 49, in paragraph (3), in sub-paragraph (a)(i), after “premises” insert “using the same version of the Standard Assessment Procedure as the pre-project energy efficiency assessment”.

Amendment to article 54 (publication of a methodology for determining ECO4 project cost savings)

6. In article 54, after paragraph (5), insert—

“(6) On or after 31 July 2025, the Administrator may revise any methodology published under this article and must publish the revised methodology on its website.

(7) Any revised methodology published under this article by the Administrator for the purpose of determining the annual cost savings of an ECO4 project pursuant to SAP10.2 is applicable only to measures that are completed on or after the date the methodology has been published.”.

Amendment to article 70 (partial project score for district heating connections)

7. In article 70, after paragraph (5), insert—

“(6) In this article, “the Standard Assessment Procedure” means—

(a)SAP2012, and

(b)SAP10.2.”.

Amendment to article 76 (publication of annual cost savings methodology: other qualifying actions)

8. In article 76, after paragraph (4), insert—

“(5) On or after 31 July 2025, the Administrator may revise any methodology published under this article and must publish the revised methodology on its website.

(6) Any revised methodology published under this article by the Administrator for the purpose of determining the annual cost savings of a qualifying action pursuant to SAP10.2 is applicable only to measures that are completed on or after the date the methodology has been published.”.

PART 3 Amendment to the Electricity and Gas (Energy Company Obligation) Order 2023

Amendment to the Electricity and Gas (Energy Company Obligation) Order 2023

9. The Electricity and Gas (Energy Company Obligation) Order 2023(8) is amended in accordance with this Part.

Amendment to article 2 (interpretation)

10. In article 2, in paragraph (2), for the definition of “Reduced Data Standard Assessment Procedure” substitute—

““Reduced Data Standard Assessment Procedure” means the methodology set out in the document titled “BRE RdSAP10 Specification (February 2024)”(9);”.

PART 4 Savings and Transitional Provisions

Savings and transitional provisions

11.—(1) Despite the amendments to the 2022 Order made by Part 2 of this Order, where the 2022 Order provides for an RdSAP assessment to be performed as a pre-project energy efficiency assessment of domestic premises in relation to an ECO4 project, during the transition period, the assessment may be performed using RdSAP2012 instead of RdSAP10.

(2) If RdSAP2012 is used in accordance with paragraph (1), RdSAP2012 must also be used for the purpose of performing the assessment referred to in article 49(3)(b) of the 2022 Order.

(3) Paragraphs (1) and (2) do not apply in relation to an ECO4 project referred to in article 12(2)(b) of the 2022 Order with respect to novel data light measures.

(4) Despite the amendments to the 2023 Order made by Part 3 of this Order, during the transition period, the assessment of domestic premises required by article 22(1)(a)(i) of the 2023 Order may be performed using RdSAP2012 instead of RdSAP10.

(5) If RdSAP2012 is used in accordance with paragraph (4), RdSAP2012 must also be used for the purpose of performing the assessment required by article 22(1)(b) of the 2023 Order.

(6) After the transition period, the post-assessment may be performed using RdSAP2012, where—

(a)the pre-assessment is performed using RdSAP2012, and

(b)the post-assessment is to be re-determined for the purpose of re-calculating the SAP rating of the premises.

(7) Nothing in this Order affects an assessment of the energy efficiency of domestic premises performed using RdSAP2012 before this Order comes into force that is relied on by a participant for the purposes of the 2022 Order or the 2023 Order in relation to a measure installed at the premises.

(8) In this article—

(a) “ the 2022 Order ” means the Electricity and Gas (Energy Company Obligation) Order 2022 ;

(b) “ the 2023 Order ” means the Electricity and Gas (Energy Company Obligation) Order 2023 ;

(c) “ participant ” has the same meaning as in article 4 of the 2022 Order, read with article 4 of the 2023 Order;

(d) “ post-assessment ” means the post-project energy efficiency assessment or the post-installation energy efficiency assessment;

(e) “ pre-assessment ” means the pre-project energy efficiency assessment or the pre-installation energy efficiency assessment;

(f) “ RdSAP10 ” means the methodology set out in the document titled “BRE RdSAP10 Specification (February 2024)” ( 10 );

(g) “ RdSAP2012 ” means the Reduced Data Standard Assessment Procedure for Energy Rating of Dwellings ( 11 );

(h) “ transition period ” means the period of six months beginning with the date on which this Order comes into force;

(i)the following expressions have the same meaning as in the 2022 Order—

“domestic premises”;

“ECO4 project”;

“novel data light measure”;

“pre-project energy efficiency assessment”;

“RdSAP assessment”;

“SAP rating”;

“pre-installation energy efficiency assessment”;

“post-installation energy efficiency assessment”.