Electricity Industry Participation Code (Half Hourly Data for Reconciliation) Amendment 2026

This amendment to the Electricity Industry Participation Code 2010 (Code) is made under section 38 of the Electricity Industry Act 2010 (Act) by the Electricity Authority having complied with section 39 of the Act.

Contents

1. Title 2

2. Commencement 2

3. Code amended 2

   Part 1

   Amendments to Part 11 of the Electricity Industry Participation Code

4. Clause 11.26 amended (Reports to reconciliation manager) 2

   Part 2

   Amendments to Part 15 of the Electricity Industry Participation Code

5. Clause 15.19 amended (Seasonal adjustment and profiling) 2

6. Clause 15.27 amended (Reconciliation manager must reconcile revised information) 2

7. Clause 15.28 amended (Transitional provisions concerning revisions) 3

8. Clause 15.38 amended (Functions requiring certification) 3

9. Clause 4 of Schedule 15.2 amended 3

10. Clause 5 of Schedule 15.2 amended 3

11. Clause 8 of Schedule 15.2 amended 3

12. Clause 9 of Schedule 15.2 amended 4

13. Clause 2 of Schedule 15.3 amended 4

14. Clause 8 of Schedule 15.3 amended 4

15. Clause 10 of Schedule 15.3 amended 4

16. Clause 7 of Schedule 15.3 amended 4

17. Clause 18 of Schedule 15.4 amended 5

18. Clause 8 of Schedule 15.5 amended 5

19. Clause 37 of Schedule 15.5 amended 5

Amendment

1. Title

   This is the Electricity Industry Participation Code (Half Hourly Data for Reconciliation) Amendment 2026.

   
   

2. Commencement

   This amendment comes into force on 1 October 2026.

   
   

3. Code amended

   This amendment amends the Electricity Industry Participation Code 2010.

   
   

   Part 1

   Amendments to Part 11 of the Electricity Industry Participation Code

4. Clause 11.26 amended (Reports to reconciliation manager)

   Replace clause 11.26(a) with:

   
   

   (a) for ICPs with either non half-hour metering or both non half-hour metering and half-hour metering, a report identifying the number of ICP days per NSP, differentiated as applicable by non half-hour metering type and half-hour metering type (for the purpose of this clause, half-hour metering type on the registry must be reported as half hour, and all other metering types, including metering category 0 (unmetered), must be reported as non half hour) attributable to each trader for those NSPs that are recorded on the registry as consuming electricity at any time during, as the case may be, that consumption period or any of those consumption periods:

Part 2

Amendments to Part 15 of the Electricity Industry Participation Code

1. Clause 15.19 amended (Seasonal adjustment and profiling)

   1. In clause 15.19(3)(d), replace “month 7” with “month 3”.

   2. In clause 15.19(4), replace “month 7” with “month 3”.

   
   

2. Clause 15.27 amended (Reconciliation manager must reconcile revised information)

   1. In clause 15.27(1)(a), replace “1, 3, 7, or 14 months” with “1, 3 or 13 months”.

   2. In clause 15.27(2), replace “month 14” with “month 13”.

3. Clause 15.28 amended (Transitional provisions concerning revisions)

   1. In clause 15.28, replace “1 May 2008” with “1 October 2026” in each place.

   2. Replace clause 15.28(1) with:

      (1) In this clause, “transitional revisions” means any revision carried out by the reconciliation manager in accordance with this clause for any reconciliation period that includes a trading period that occurred before 1 October 2026.

1. Replace clause 15.28(3) with:

   (3) Before 1600 hours on the 13th business day of October 2026, any reconciliation participant may submit revised submission information for the consumption period July 2025.

   (3A) If the reconciliation manager receives revised submission information for July 2025, the reconciliation manager must conduct a further reconciliation for July 2025 while performing further reconciliation for other revisions received during October 2026,

   notwithstanding clause 15.27(1)(b).

1. In clause 15.28(4)(b):

   1. delete “, including each incumbent retailer,”; and

   2. replace “clause 15.4(2); and” with “clause 15.4(2).”

2. Revoke clauses 15.28(4)(c) and (d).

3. Replace clause 15.28(5) with:

   (5) All transitional revisions must be carried out by the reconciliation manager in accordance with this Code.

1. In clause 15.28(6)(a), replace “part J of the rules and this Part” with “revisions to this Part on 1 October 2026”.

2. Revoke clause 15.28(7).

1. Clause 15.38 amended (Functions requiring certification)

   Revoke clause 15.38(1)(d)(i).

   
   

2. Schedule 15.2, clause 4 amended

   In clause 4(2) of Schedule 15.2, replace “month 14” with “month 13”.

   
   

3. Schedule 15.2, clause 5 amended

   In clause 5 of Schedule 15.2, insert as subclause (2):

   1. Where a reconciliation participant uses a photograph of the meter register supplied by a consumer to obtain the raw meter data, the reconciliation participant must:

      1. take reasonable steps to verify the meter reading is accurate; and

      2. examine the photograph to check for the issues noted in subclauses (1)(b) to (e); and

      3. keep the photograph and records of the steps taken in paragraph (a) and the results of the examination in paragraph (b) in accordance with clause 18.

1. Schedule 15.2, clause 8 amended

   In clause 8(1) of Schedule 15.2:

   1. delete “In carrying out this obligation—”; and

   2. revoke paragraphs (a) and (b).

      
      

2. Schedule 15.2, clause 9 amended

   1. In clause 9(1) of Schedule 15.2:

      1. delete “In carrying out this obligation—”; and

      2. revoke paragraphs (a) and (b).

   2. Revoke clause 9(3) of Schedule 15.2

   
   

3. Schedule 15.3, clause 2 amended

   1. In clause 2(1) of Schedule 15.3, replace paragraph (a) with:

      1. must comprise half hour volume information for the total metered quantity of

         electricity for:

         1. each category 1 metering installation or category 2 metering installation

            that is a half-hour metering installation; and

         2. each category 3 or higher metering installation:

1. Revoke clause 2(1)(ac) of Schedule 15.3.

2. In clause 2(1)(ad) of Schedule 15.3, replace “non half-hour metering” with “non half-hour metering”.

   (ae) if a metering installation is a category 1 metering installation or category 2 metering installation, and the metering installation contains half-hour metering and non half-hour metering, must comprise a combination of —

   1. half hour volume information for the half-hour metering; and

   2. non half hour volume information calculated under clauses 4 to 6 (as applicable) for the non half-hour metering:

1. Replace clause 2(1)(ae) of Schedule 15.3 with:

   
   

2. In clause 2(1A) of Schedule 15.3, replace “subclause (1)(a) to (ae)” with “subclause (1)(ab), (1)(ad) and (1)(ae)(ii)”.

3. Replace clause 2(2) of Schedule 15.3 with:

1. Schedule 15.3, clause 8 amended

   In clause 8(2)(c)(i) of Schedule 15.3, replace “non half-hour metering” with “non half-hour metering”

   
   

2. Schedule 15.3, clause 10 amended

   In clause 10(3) of Schedule 15.3:

   1. revoke paragraph (a);

   2. in paragraph (b), replace “month 7” with “month 3”; and

   3. in paragraph (c), replace “month 14" with "month 13”.

      
      

3. Schedule 15.4, clause 7 amended

   In clause 7(3) of Schedule 15.4, after “add to that retailer’s”, insert “or direct purchaser’s”.

4. Schedule 15.4, clause 18 amended

   In clause 18(1)(a), replace “the 7 and 14 month revisions” with “the 3 and 13 month revisions”.

   
   

5. Schedule 15.5, clause 8 amended

   In clause 8 of Schedule 15.5, insert as subclause (2):

   (2) No participant may apply to the Authority for a new profile for non half-hour

   metered ICPs.

1. Schedule 15.5, clause 37 amended

In clause 37 of Schedule 15.5, insert after subclause (5):

(6) A profile will be deemed to be removed if no ICPs have been assigned to it.

Made at Wellington on 30 March 2026

ERIK WESTERGAARD

Acting Chair Electricity Authority

Certified in order for signature:

Tiffany Matsis Rachael Brown

Senior Legal Counsel Partner

Electricity Authority Bell Gully

27 March 2026 27 March 2026

Explanatory Note

This note is not part of the amendment but is intended to indicate its general effect.

This amendment to the Electricity Industry Participation Code 2010 comes into force on 1 October 2026.

The amendment requires electricity traders to submit aggregated half-hourly volume information to the reconciliation manager for all ICPs where there is a half-hour capable meter installed. It also makes minor changes to the provisions of the Code relating to washups, meter reading and profiles for metered ICPs.