Transmission Pricing Methodology
The Electricity Authority has decided to adopt a new transmission pricing methodology (TPM). The new TPM better positions New Zealand for the transition to a low-emissions economy by ensuring the best use of existing and future infrastructure and electrification at lower cost.
Overview
| Date | Activity |
|---|---|
| 28 Mar 2023 | Development: The Transmission Pricing Methodology (TPM) provides for a customer’s initial residual charge (when the TPM first takes effect) to be adjusted to accommodate circumstances where a customer has experienced a substantial reduction in its demand prior to the Read more |
| 22 Nov 2022 | Development: We have decided to amend Part 12 of the Code to address issues identified in the new TPM Read more |
| 18 – 31 Oct 2022 | Consultation: We are consulting on several amendments the Authority proposes to make to the new Transmission Pricing Methodology (TPM). Read more |
| 19 Jul 2022 | Development: Decision on status of existing notional embedding contracts Read more |
| 28 Jun 2022 | Correspondence: The High Court released its judgement on 21 June 2022 Read more |
| 21 Jun 2022 | Development: Following consultation on Code amendments to support effective implementation of the new TPM, the Electricity Authority has decided to adopt three Code changes Read more |
| 26 May – 22 Jun 2022 | Consultation: Consultation on status of the existing PDAs and NEC Read more |
| 28 Apr – 18 May 2022 | Consultation: A set of proposed Code amendments to support implementation of the new TPM. Read more |
| Apr 2022 | Event: The Authority held an online briefing for stakeholders about the new TPM on 14 April 2022. Read more |
| 12 Apr 2022 | Development: Final decision to incorporate a new TPM into the Code. Read more |
| 12 Apr 2022 | Following the conclusion of a significant structural reform and consultation process, the Electricity Authority has decided to adopt a new Transmission Pricing Methodology (TPM). Read more |
| 12 Apr 2022 | Correspondence: Read more |
| 28 Feb 2022 | Correspondence: Read more |
| 22 Feb 2022 | Correspondence: Commencement Day documents Read more |
| 18 Jan 2022 | Development: Consultation has begun on proposed principles for a new settlement residual allocation methodology (SRAM). Read more |
| 11 Nov 2021 | Development: Questions and Answers: TPM consultation Read more |
| 08 Oct – 23 Dec 2021 | Consultation: Consultation on the proposed new TPM has begun. The Authority is nearing the end of its TPM reform process, and is now consulting on a proposed new TPM. Read more |
| 08 Oct – 02 Dec 2021 | Event: The Authority is seeking feedback on the new TPM. We encourage you to attend a briefing event and make a submission on the consultation. Read more |
| 08 Oct – 02 Dec 2021 | The Electricity Authority has started consulting on a proposed new Transmission Pricing Methodology (TPM). Read more |
| 10 Aug 2021 | Correspondence: Transpower has released its proposed TPM which it submitted to the Authority on 30 June 2021 Read more |
| 10 Aug 2021 | Transpower has released its proposed TPM which it submitted to the Electricity Authority on 30 June 2021. Read more |
| 6 Jul 2021 | Development: Transpower has submitted a proposed Transmission Pricing Methodology (TPM) to the Electricity Authority as provided for in the Electricity Industry Participation Code 2010. Read more |
| 22 Mar 2021 | Correspondence: The Authority has published Electricity storage and residual transmission charges by Sense Partners. Read more |
| 22 Mar 2021 | Correspondence: The Authority has published a letter sent to Transpower on 18 March 2021 regarding the application of the proposed TPM’s provisions relating to the residual charge to grid-connected batteries and similar storage. Read more |
| 15 Mar 2021 | Correspondence: Read more |
| 2 Feb 2021 | Development: Transpower has updated their website with documents and related letters Read more |
| 29 Jan 2021 | Correspondence: Following the release of the 2020 TPM Guidelines Read more |
| 14 Jul 2020 | Correspondence: The Authority has received an appeal against its decision to publish new guidelines and a process for the development of a new proposed TPM. Read more |
| 22 Jun 2020 | Correspondence: The Authority has written to Transpower requesting they develop a TPM consistent with the 2020 guidelines and also to the Commerce Commission. Read more |
| 10 Jun 2020 | Development: We have decided on new guidelines for transmission pricing. Read more |
| May 2020 | Development: On Tuesday 28 April the Authority hosted a webinar presenting revisions to the cost benefit analysis that supported the Transmission Pricing Methodology: 2019 Issues Paper. Read more |
| 17 Apr 2020 | Development: This information paper sets out the Authority’s current thinking on its cost-benefit analysis (CBA) of the transmission pricing methodology (TPM) guidelines it proposed in 2019, having taken into account submissions it received on that proposal. Read more |
| Mar 2020 | Development: The Authority has published a package of information regarding aspects of the Authority’s proposal, specific areas of concern and our thinking about next steps as we move towards a decision Read more |
| 2 Mar 2020 | Development: The Authority welcomes questions on the Transmission Pricing Methodology: 2019 Issues Paper. Read more |
| 11 Feb – 03 Mar 2020 | Consultation: The Authority’s TPM review is ongoing and its decision on the proposed TPM guidelines has not yet been made. This supplementary consultation is part of that ongoing process. Read more |
| Dec 2019 | Event: In December 2019 the Authority Board heard oral submissions on the TPM Issues Paper. Read more |
| 26 Nov 2019 | Development: The Authority is currently considering the submissions and cross-submissions it received on the Transmission Pricing Methodology: 2019 Issues Paper. Read more |
| 2 Oct 2019 | Development: We have published TPM submissions to the consultations page Read more |
| 27 Sep 2019 | Correspondence: Correspondence relating to 2019 Issues Paper. Read more |
| Aug – Sep 2019 | Event: The Authority is holding workshops on its 2019 TPM proposal Read more |
| 23 Jul – 31 Oct 2019 | Consultation: The Electricity Authority (the Authority) is proposing a new approach to transmission pricing. Read more |
| 16 May 2019 | Development: A joint report from Electricity Authority, Commerce Commission, and Transpower representatives Read more |
| 11 Dec 2018 | Development: Progress update Read more |
| 26 Jun 2018 | Development: Next steps for Authority's TPM review Read more |
| 26 Jun 2018 | Development: Next steps - Questions and Answers Read more |
| 20 Jun 2017 | Development: Next steps for Authority’s TPM review Read more |
| 20 Jun 2017 | Development: Transpower proposes TPM operational review Read more |
| 26 Apr 2017 | Development: The Authority will prepare a new cost-benefit analysis (CBA) for the review of the Transmission Pricing Methodology (TPM) guidelines. Read more |
| 28 Mar 2017 | Development: Transmission pricing methodology (TPM) review: second issues paper: Question and Answer session on CBA calculations Read more |
| 23 Mar 2017 | Development: Transmission Pricing Methodology: revised cost benefit analysis Read more |
| 17 Mar 2017 | Correspondence: Correspondence relating to the second issues paper: supplementary consultation paper Read more |
| 10 Mar 2017 | Development: Second issues paper: supplementary consultation paper: cross-submissions Read more |
| 7 Feb 2017 | Development: Transmission Pricing Methodology: second issues paper: supplementary consultation: update of indicative transmission charge estimates Read more |
| 13 Dec 2016 | Development: Transmission Pricing Methodology second issues paper: supplementary consultation questions and responses Read more |
| 13 Dec 2016 – 24 Feb 2017 | Consultation: Transmission Pricing Methodology: second issues paper: supplementary consultation Read more |
| 2 Dec 2016 | Development: High Court declines Trustpower application for judicial review Read more |
| 18 Oct 2016 | Development: Supplementary consultation to the TPM second issues paper Read more |
| 18 Jul 2016 | Development: TPM second issues paper - questions received from stakeholders during the consultation period and Authority responses Read more |
| 14 – 17 Jun 2016 | Event: Workshops about transmission pricing proposal Read more |
| Jun 2016 | Correspondence: Correspondence relating to the second issues paper Read more |
| 17 May 2016 | Event: Stakeholder briefing - second issues paper Read more |
| 17 May – 26 Jul 2016 | Consultation: Transmission Pricing Methodology: second issues paper Read more |
| 12 Apr 2016 | Development: Further update on review timing Read more |
| 15 Mar 2016 | Development: Update on time frames for second issues paper Read more |
| 20 Oct 2015 | Development: Review process flowchart Read more |
| Oct 2015 | Correspondence: Correspondence relating to the options paper submissions Read more |
| 7 Aug 2015 | Development: TPM options paper - questions received from stakeholders during the consultation period Read more |
| 6 Aug 2015 | Development: TPM options working paper - Demand and generation sensitivities for the TPM options working paper Read more |
| 30 Jul 2015 | Development: TPM options working paper – revisions to indicative modelling Read more |
| 07 – 10 Jul 2015 | Event: TPM options paper workshops Read more |
| 16 Jun – 11 Aug 2015 | Consultation: Transmission Pricing Methodology: options paper Read more |
| 16 Jun 2015 | Event: Stakeholder briefing - options working paper Read more |
| 16 Jun 2015 | Development: Options paper questions and answers Read more |
| 24 Feb 2015 | Development: Indicative project timeline updated Read more |
| Oct 2014 | Correspondence: Correspondence relating to the problem definition working paper Read more |
| 16 Sep – 28 Oct 2014 | Consultation: Transmission Pricing Methodology: Problem definition relating to interconnection and HVDC assets working paper Read more |
| 14 Aug 2014 | Event: Presentation to the Independent Electricity Generators Association Read more |
| 29 Jul – 23 Sep 2014 | Consultation: Transmission Pricing Methodology: Long Run Marginal Cost (LRMC) Charges working paper Read more |
| 06 May – 24 Jun 2014 | Consultation: Transmission Pricing Methodology: Connection charges working paper Read more |
| Mar 2014 | Correspondence: Correspondence relating to the beneficiaries-pay working paper Read more |
| Mar – Apr 2014 | Correspondence: Correspondence relating to the TPM review process Read more |
| 29 Jan 2014 | Event: Beneficiaries-pay working paper forum Read more |
| 21 Jan – 25 Mar 2014 | Consultation: Beneficiaries-pay working paper. Read more |
| 21 Jan – 04 Mar 2014 | Consultation: Use of loss and constraint excess (LCE) to offset transmission charges. Read more |
| Dec 2013 | Correspondence: Correspondence relating to the ACOT working paper Read more |
| Nov 2013 – Jan 2014 | Correspondence: Correspondence with the proprietors of Taheke 8C & Adjoining Blocks (inc) and Ruahine & Kuharua Incorporated Read more |
| 19 Nov 2013 – 31 Jan 2014 | Consultation: Avoided cost of transmission (ACOT) payments for distributed generation Read more |
| Oct – Nov 2013 | Correspondence: Correspondence relating to Tiwai Point charges Read more |
| 08 Oct – 19 Nov 2013 | Consultation: Sunk costs working paper. Read more |
| 03 Sep – 15 Oct 2013 | Consultation: Cost-benefit analysis working paper. Read more |
| Sep 2013 – Oct 2015 | Development: Second Issues paper Read more |
| 29 Jul 2013 | Event: Presentation to the Independent Electricity Generators Association Read more |
| 29 – 31 May 2013 | Event: May 2013 TPM Conference Read more |
| 29 – 31 May 2013 | Development: May 2013 TPM Conference Read more |
| Apr – Jul 2013 | Correspondence: Correspondence and feedback relating to the TPM conference Read more |
| 20 Feb 2013 | Event: New Zealand Wind Energy Association presentation Read more |
| 7 Feb 2013 | Event: October 2012 Issues Paper: Q&A workshop Read more |
| 12 Dec 2012 | Event: October 2012 Issues Paper: Modelling Workshop Read more |
| Nov 2012 – Mar 2013 | Correspondence: Correspondence relating to the October 2012 Issues paper Read more |
| Oct 2012 | Event: October 2012 Issue paper forums Read more |
| 10 Oct 2012 – 01 Mar 2013 | Consultation: Issues and proposal. Read more |
| May 2012 – May 2013 | Development: Issues paper Read more |
| 26 Jan – 24 Feb 2012 | Consultation: Review of decision-making and economic framework. Read more |
| Jun – Jul 2011 | Correspondence: Correspondence relating to the TPAG Transmission Pricing Discussion paper Read more |
| 29 Jun 2011 | Event: TPAG public briefing on Transmission Pricing Discussion Paper Read more |
| 07 Jun – 14 Jul 2011 | Consultation: Transmission Pricing Discussion Paper Read more |
| May 2011 – May 2012 | Development: Economic Framework Decision Making Read more |
| Feb 2011 | Development: In response to senior level feedback from a number of industry participants, the Authority established an ad-hoc advisory group - TPAG. Read more |
| 14 Feb – 14 Mar 2011 | Consultation: Code Amendment Proposal: Regulatory Framework for Transmission Pricing Methodology (TPM) Read more |
| Feb – Apr 2011 | Development: Review of the regulatory framework Read more |
| 27 Aug – 24 Sep 2010 | Consultation: Stage 2 Options. Read more |
| Jul – Oct 2010 | Development: Stage 2 Options Read more |
| 30 Oct 2009 | Correspondence: Letter received from Transpower Read more |
| 09 Oct – 07 Dec 2009 | Consultation: High-level options. Read more |
| 01 Oct 2009 – 31 May 2010 | Development: Stage 1 High level options investigation Read more |
| Apr 2009 | Background: Transmission Pricing as at April 2009 Read more |
