Introduction
The current TPM has applied since 1 April 2023.
Under the TPM, transmission charges are allocated to Transpower's customers via a benefit-based system. In a benefit-based system, those that are expected to benefit most from the current and future investment pay the costs. The TPM has been designed to reflect the costs and expected benefits of electricity transported across Transpower's 12,000 kilometres of transmission lines.
The TPM is available on the Authority's website.
Useful documents
To help people understand the TPM we have prepared the following resources. Over time we will develop and share more information about how the TPM works in practice.
| Document | Download |
|---|---|
| Guide to the TPM v3 | View |
| Information sheet on treatment of new customers | View |
| Information sheet on treatment of battery storage | View |
| Information sheet on embedded generation | View |
| Information sheet on disconnecting from the grid | View |
| Information sheet on connection charges v3 | View |
| Information sheet on connection charges: FAC mechanism to address Type 1 FMD v3 | View |
| Information sheet on connection charges: Anticipatory investment and Type 2 FMD v3 | View |
| Information sheet on residual charges v4 | View |
| Information sheet on benefit-based charges: Simple method v3 | View |
| Information sheet on benefit-based charges: Standard methods v2 | View |
| Information sheet on benefit-based charges: Appendix A BBIs v2 | View |
| Information sheet on benefit-based charges: Adjustments v3 | View |
| Information sheet on benefit-based charges: Covered cost v2 | View |
| Information sheet on transitional price cap v2 | View |
| Information sheet on prudent discounts v2 | View |
| Prudent discount manual | View |
| Information sheet on reassignment | View |
| Reassignment practice manual | View |
TPM Newsletters
Here you will find updates related to our work implementing the TPM, including information about engagement opportunities and consultations.
- 2024
-
25 November 2024: Assumptions Book 2.0 now available
30 October 2024: No submissions received for Assumptions Books 2.0 consultation
7 October 2024: Consultation on assumptions book update
7 August 2024: Updates to Grid Pricing website information
- 2023
-
16 November 2023: Decision documents published for WUNIVM1b OTA STATCOM BBI consultation
02 October 2023: No submissions received for WUNIVM1b OTA STATCOM BBI consultation
26 September 2023: TPM - OTA STATCOM consultation closes on Friday 29 September 2023
07 September 2023: Net Zero Grid Pricing phase one BBI consultation closes
31 August 2023: TPM updated consultation schedule - three open consultations
02 June 2023: Extension for NZGP phase 1 starting BBI customer allocations consultation
27 April 2023: TPM BBI consultation for two components of NZGP phase one MCP proposal
01 April 2023: TPM decision published
24 March 2023: TPM HVDC Pole 2 consultation closed
16 March 2023: TPM BBC Assumptions Book v1.1 published
10 March 2023: TPM submission received on HVDC Pole 2 refurbishment BBI consultation and new FAQs
07 March 2023: TPM assumptions book consultation - no submissions received
01 March 2023: TPM assumptions book consultation submissions due next Monday and new BBC FAQ
10 February 2023: TPM consultation update - WUNIVM Stage 1a BBI and Assumptions Book update
01 February 2023: New TPM consultation package, a decision, and new resources published
19 January 2023: TPM consultation on proposing starting allocations for HVDC Pole 2 refurbishment
- 2022
-
22 December 2022: Meri Kirihimete (Merry Christmas) from the Transpower Grid Pricing team
16 December 2022: Minor change to WUNIVM Stage 1a consultation paper
15 December 2022: TPM consultation on proposed starting allocations for WUNIVM Stage 1a
07 December 2022: Electricity transmission charges from April 2023
01 December 2022: TPM consultation cross-submissions published
23 November 2022: TPM submission and new information sheet published
15 November 2022: TPM consultation reminder and new information published
29 September 2022: TPM new information sheets and questions published
25 August 2022: TPM indicative pricing update and new residual charges information sheet
18 August 2022: TPM connection asset replacement costs consultation cross-submissions published
12 August 2022: TPM connection asset replacement costs consultation late submission published
11 August 2022: TPM connection asset replacement costs consultation submissions published
28 July 2022: TPM consultation on connection asset replacement costs
21 July 2022: Webinar rescheduled - NZGP indicative pricing for shortlist consultation
07 July 2022: TPM submission published for consultation on reclassification of Buller region assets
23 June 2022: TPM consultation on reclassification of Buller region assets
16 June 2022: TPM re-submission by ENA on CUWLP benefit-based investment consultation published
14 June 2022: TPM submissions on CUWLP benefit-based investment consultation published
07 June 2022: TPM draft assumptions book cross-submissions published
01 June 2022: TPM reminder on draft assumptions book and CUWLP allocation submission dates
27 May 2022: TPM submissions on our draft assumptions book published
17 May 2022: TPM CUWLP BBI consultation
04 May 2022: TPM online drop-in session reminder: Friday 6 May 1:30pm
Questions?
Please email [email protected] if you have any questions about the implementation of the TPM.
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