TPM Q&As

Questions sent to us by stakeholders related to the new TPM can be found here. The most recent questions and answers appear first. 

Do you you have a question for our TPM implementation team?

Email us at [email protected]. You may also find the answer to a question in our short Guide to the new TPM.

Questions

31 Aug 23 - NZGP1 benefit-based investment consultation
28 July 23 - Timing of communicating transmission charges
14 June 23 - Connection point clarification 
08 Jun 23 - New customer adjustment event
30 May 23 - BBCs for generation located further away from load
12 May 23 - NZGP1.1 generation expansion by scenario and year (excel spreadsheet)
28 Apr 23 - Estimating transmission costs for new connections
28 April 23 - BBC allocation triggers
27 Apr 23 - Prudent Discount Manual
14 Mar 23 - BBC adjustment event (large plant connection)
06 Mar 23 - BBC Assumptions Book and new generation
02 Mar 23 - Estimating transmission costs for new connections
24 Feb 23 - BBC sensitivity to embedded generation
22 Feb 23 - Settlement of residual residue under the new SRAM
20 Feb 23 - Updating model for BBI charges (Simple BBI IRAs PY23 final)
15 Feb 23 - Transpower's work to develop a new SRAM
15 Dec 22 - When do BBCs first apply for a new generation connection?
15 Dec 22 - covered cost model
15 Nov 22 - Prudent discount manual - previous version?
07 Oct 22 - Timing of prudent discount applications
06 Oct 22 - CUWLP's covered cost
04 Oct 22 - High level overview of TPM [ pdf 90.27 KB ]
30 Sep 22 - Future charges under new TPM for injection at GXPs [ pdf 103.48 KB ]
29 Sep 22 - Prudent Discount [ pdf 96.6 KB ]
29 Sep 22 - Updates to connection asset replacement costs [ pdf 100.6 KB ]
23 Sep 22 - Publications about the TPM [ pdf 100.16 KB ]
12 Sep 22 - Transpower's allowable revenue increase to PY2023/24
12 Sep 22 - BBC adjustments when a large plant connects at EDB level [ pdf 118.43 KB ]
25 Aug 22 - How will the new TPM work? [ pdf 142.78 KB ]
08 Aug 22 - Asset replacement costs consultation [ pdf 88.99 KB ]
05 Aug 22 - Draft assumptions book consultation [ pdf 92.42 KB ]
05 Aug 22 - Connection assets and info sheet [ pdf 109.77 KB ]
28 Jul 22 - Transpower CUWLP options analysis [ pdf 147.23 KB ]
29 Jun 22 - TPM indicative pricing [ pdf 114.24 KB ]
15 Jun 22 - TPM data [ pdf 115.06 KB ]
07 Jun 22 - Prudent discount - how recovered [ pdf 181.79 KB ]
01 Jun 22 - BBC approach [ pdf 99.61 KB ]
01 Jun 22 - RCPD [ pdf 95.35 KB ]
27 May 22 - Opex in residual and adjustments when load terminates [ pdf 112.8 KB ]
26 May 22 - CUWLP BBI consultation (see excel spreadsheet just below) [ pdf 117.99 KB ]
26 May 22 - CUWLP BBI consultation individual customer allocations by scenario [ xlsx 53.42 KB ]
26 May 22 - CUWLP BBI consultation [ pdf 169.76 KB ]
19 May 22 - Various TPM topics [ pdf 216.05 KB ]
19 May 22 - Impact of new large load on residual charges [ pdf 108.12 KB ]
19 May 22 - The set of assets comprising the HVDC BBI [ pdf 99.7 KB ]
13 May 22 - Draft Assumptions Book [ pdf 115.61 KB ]
11 May 22 - Draft Assumptions Book [ pdf 234.14 KB ]
11 May 22 - HVDC Charge in the TPM [ pdf 112.28 KB ]
11 May 22 - draft assumptions book inflow files for Matiri and Upper Fraser [ pdf 154.1 KB ]
10 May 22 - TPM implications for embedded generation [ pdf 109.58 KB ]
05 May 22 - Embedded generators Q2 [ pdf 97.81 KB ]
05 May 22 - Embedded generators Q1 [ pdf 145.52 KB ]
26 April 22 - Transmission charges for 1 April 2023 [ pdf 105.79 KB ]