TPM Development Project Timeline

Transpower has now delivered a proposed new Transmission Pricing Methodology (TPM) for the Electricity Authority.  This is in accordance with the Transmission Pricing Methodology Guidelines, published by the Authority in June 2020, and the Electricity Industry Participation Code 2010. You can view the Electricity Authority's TPM webpages here.


We intend to publish our TPM proposal package during the week of 9 August 2021. This timing will allow the Authority the opportunity to indicate any aspects it will refer back to Transpower for consideration, which means stakeholders can assess our TPM proposal in light of the Authority's response.


Our development timeline

A TPM development timeline was designed to ensure we met the required delivery date of 30 June 2021. 

  • Here [ pdf 161.96 KB ] is a summary of our work from 1 March 2021 - 30 June 2021. 
  • Here [ pdf 276.18 KB ] is our project timeline from August 2020. 

 

 

Stakeholder engagement 

From August 2020 - May 2021 we engaged with customers and industry on various aspects of the TPM.

  • Here  [ pdf 117.01 KB ]is a summary of our engagement in relation to our checkpoint processes.


TPM development process requirements

An important part of our TPM development work was complying with the Electricity Authority’s (EA) process decision, which was set out in Box 1 of its June 2020 Decision Paper

Below are documents, and related letters between Transpower and the EA, for the process requirements we completed prior to delivering the proposal.  

Note: documents 1 - 8 were published 27 January 2021, documents 9 - 14 were published 12 February 2021, documents 15 - 27 were published 23 February and documents 28 - 48 were published 25 May 2021.

1. 31 July 2020 - Letter to EA (Transpower TPM Project Timeline).pdf [ pdf 347.78 KB ]
2. 11 Aug 2020 - Letter from EA (Response to Transpower TPM Project Timeline).pdf [ pdf 85.08 KB ]
3. 14 Aug 2020 - Letter to EA (Transpower TPM Checkpoint 1 Submission - Benefit-Based Charge).pdf [ pdf 148.68 KB ]
4. 14 Aug 2020 - TPM Development Checkpoint 1 submission to the Electricity Authority (Benefit-Based Charge).pdf [ pdf 1.77 MB ]
5. 31 Aug 2020 - Letter from EA (Transpower Checkpoint 1 submission).pdf [ pdf 110.16 KB ]
6. 01 Oct 2020 - Letter to EA (Transpower Checkpoint 1 re-submission - Benefit-Based Charge).pdf [ pdf 143.79 KB ]
7. 01 Oct 2020 - TPM Development Checkpoint 1 re-submission to the Electricity Authority (Benefit-Based Charge).pdf [ pdf 1.74 MB ]
8. 09 Oct 2020 - Letter from EA (Transpower TPM Checkpoint 1 re-submission).pdf [ pdf 69.95 KB ]
9. 23 Nov 2020 - Letter to EA (Transpower TPM Checkpoint 1 Submission - TCC).pdf [ pdf 142 KB ]
10. 23 Nov 2020 - TPM Development Checkpoint 1 submission to the Electricity Authority (Transitional Congestion Charge).pdf [ pdf 2.91 MB ]
11. 14 Dec 2020 - Letter from EA (Checkpoint 1 submission - Transitional Congestion Charge).pdf [ pdf 88.32 KB ]
12. 18 Jan 2021 - Letter to EA (Transpower TPM Checkpoint 1 re-submission - Transitional Congestion Charge).pdf [ pdf 137.19 KB ]
13. 18 Jan 2021 - TPM Development Checkpoint 1 re-submission to the Electricity Authority (Transitional Congestion Charge).pdf [ pdf 1.51 MB ]
14. 4 Feb 2021 - Letter from EA (Transpower TCC Checkpoint 1 re-submission).pdf [ pdf 74.97 KB ]
15. 22 Sep 2020 - Letter to EA (Checkpoint 1 and 2 update).pdf [ pdf 202.33 KB ]
16. 01 Oct 2020 - Letter from EA (Transpower Checkpoint 1 and 2 phasing).pdf [ pdf 78.32 KB ]
17. 03 Nov 2020 - Letter to EA (TPM project timeline and Options Consultation).pdf [ pdf 152.21 KB ]
18. 11 Nov 2020 - Letter from EA (TPM project timeline and Options Consultation).pdf [ pdf 72.26 KB ]
19. 16 Nov 2020 - Letter to EA (Transpower TPM Checkpoint 2 Submission - Price Cap, Residual and Connection Charge).pdf [ pdf 111.42 KB ]
20. 16 Nov 2020 - TPM Development Checkpoint 2 submission to the Electricity Authority (Connection Charge).pdf [ pdf 1.53 MB ]
21. 16 Nov 2020 - TPM Development Checkpoint 2 submission to the Electricity Authority (Residual Charge and Transitional Cap).pdf [ pdf 858.73 KB ]
22. 07 Dec 2020 - Letter from EA (Transpower Checkpoint 2a submission).pdf [ pdf 181.13 KB ]
23. 22 Jan 2021 - Letter to EA (Transpower TPM Checkpoint 2 re-submission - Price Cap and Residual Charge).pdf [ pdf 143.29 KB ]
24. 22 Jan 2021 - TPM Development Checkpoint 2 re-submission to the Electricity Authority (Residual Charge and Transitional Cap).pdf [ pdf 792.97 KB ]
25. 04 Feb 2021 - Letter from EA (Transpower TPM Checkpoint 2a re-submission - Price Cap and Residual Charge).pdf [ pdf 87.68 KB ]
26. 01 Mar 2021 - Letter to EA (Transpower TPM Project Timeline and Options Consultation).pdf [ pdf 167.64 KB ]
27. 22 Mar 2021 - Letter from EA (Transpower TPM Project Timeline and Options Consultation).pdf [ pdf 80.74 KB ]
28. 01 Mar 2021 - Letter to EA (Transpower TPM Checkpoint 2B submission).pdf [ pdf 157.45 KB ]
29. 01 Mar 2021 - TPM Development Checkpoint 2B submission to the Electricity Authority (Adjustments).pdf [ pdf 3.28 MB ]
30. 01 Mar 2021 - TPM Development Checkpoint 2B submission to the Electricity Authority (BBC allocations).pdf [ pdf 2.53 MB ]
31. 01 Mar 2021 - TPM Development Checkpoint 2B submission to the Electricity Authority (Covered Cost for BBC).pdf [ pdf 478.92 KB ]
32. 01 Mar 2021 - TPM Development Checkpoint 2B submission to the Electricity Authority (FMD).pdf [ pdf 607.5 KB ]
33. 01 Mar 2021 - TPM Development Checkpoint 2B submission to the Electricity Authority (PDP).pdf [ pdf 1.31 MB ]
34. 01 Mar 2021 - TPM Development Checkpoint 2B submission to the Electricity Authority (preliminary drafting of proposed TPM).pdf [ pdf 1.19 MB ]
35. 18 Mar 2021 - Letter from EA (Proposed TPM residual charges and the treatment of batteries).pdf [ pdf 92.05 KB ]
36. 22 Mar 2021 - Letter from EA (Transpower TPM Checkpoint 2B submission).pdf [ pdf 344.6 KB ]
37. 03 May 2021 - Letter to EA (Transpower TPM Checkpoint 2B resubmission and 2C submission).pdf [ pdf 195.1 KB ]
38. 03 May 2021 - TPM Development Checkpoint 2B resubmission to the Electricity Authority (Adjustments).pdf [ pdf 760.19 KB ]
39. 03 May 2021 - TPM Development Checkpoint 2B resubmission to the Electricity Authority (BBC allocations).pdf [ pdf 1.38 MB ]
40. 03 May 2021 - TPM Development Checkpoint 2B resubmission to the Electricity Authority (Covered Costs for BBC).pdf [ pdf 384.14 KB ]
41. 03 May 2021 - TPM Development Checkpoint 2B resubmission to the Electricity Authority (FMD).pdf [ pdf 819.63 KB ]
42. 03 May 2021 - TPM Development Checkpoint 2B resubmission to the Electricity Authority (PDP).pdf [ pdf 1.25 MB ]
43. 03 May 2021 - TPM Development Checkpoint 2B resubmission to the Electricity Authority (preliminary drafting of proposed TPM).pdf [ pdf 1.54 MB ]
44. 03 May 2021 - TPM Development Checkpoint 2C submission to the Electricity Authority (Residual Charges and the Treatment of Batteries Options).pdf [ pdf 1.26 MB ]
45. 24 May 2021 - Letter from EA (Transpower TPM Checkpoint 2B resubmission).pdf [ pdf 91.65 KB ]
46. 24 May 2021 - Letter from EA (Transpower TPM Checkpoint 2B resubmission Appendix A-D).pdf [ pdf 652.74 KB ]
47. 24 May 2021 - Letter from EA (Transpower TPM Checkpoint 2B resubmission Appendix E comments on preliminary drafting of proposed TPM).pdf [ pdf 1.68 MB ]
48. 24 May 2021 - Letter from EA (Transpower TPM Checkpoint 2C submission).pdf [ pdf 78.46 KB ]