Transmission pricing methodology review - issues and proposal
About this consultation
The Electricity Authority (Authority) is reviewing the transmission pricing methodology (TPM), which specifies the method for Transpower New Zealand Limited (Transpower) to recover costs of providing transmission services.
The Authority considers that the current TPM can be improved so as to better promote competition in, reliable supply by, and the efficient operation of, the electricity industry for the long-term benefit of consumers.
The Authority developed a decision-making and economic framework on which it would make decisions about the TPM, which was generally well received by stakeholders. The Authority has applied this framework to derive its proposal for the TPM.
Submissions are due on 1 March 2013 with cross-submissions due on 28 March 2013.
The Authority has a policy of making material that has been requested by, and released to, individual participants as part of a consultation process publically available. Accordingly, the Authority has published a number of data files containing data used in the presentation material accompanying the release of the TPM issues paper. It is important to note that the data is based on SPD modelling simulations using historical market offers, and should not be treated as being predictive of actual future transmission charges.
The Authority's preference is to receive submissions in electronic format (Microsoft Word). It is not necessary to send hard copies of submissions to the Authority, unless it is not possible to do so electronically. Submissions in electronic form should be emailed to email@example.com with "Consultation Paper - Transmission pricing methodology review - issues and proposal ' in the subject line.
If submitters do not wish to send their submission electronically, they should post one hard copy of their submission to the address below.
PO Box 10041
Level 7, ASB Bank Tower
2 Hunter Street
Tel: 04 460 8860
Fax: 04 460 8879
Submissions must be received by 5.00 pm on Friday 1 March 2013. The Authority will allow for cross-submissions. Cross-submissions must be received by 5.00pm on 28 March 2013. Please note that late submissions and cross-submissions are unlikely to be considered.
The Authority will acknowledge receipt of all submissions electronically. Please contact the Submissions' Administrator if you do not receive electronic acknowledgement of your submission within two business days.
If possible, submissions should be provided in the format shown in Appendix A. Your submission is likely to be made available to the general public on the Authority's website. Submitters should indicate any documents attached, in support of the submission, in acovering letter and clearly indicate any information that is provided to the Authority on a confidential basis. However, all information provided to the Authority is subject to the Official Information Act 1982.
Transmission-pricing-methodology-review-issues-and-proposal-consultation-paper.pdf | pdf | 1.7 MB | Last Changed: 22/02/2013 4:54pm
This document has been updated to correct a minor error in Table 3 for the point estimate for the total costs of the interconnection charge.
Word-version-of-TPM-questions.DOCX | docx | 49 KB | Last Changed: 14/12/2012 11:37am
Appendix-B.pdf | pdf | 48 KB | Last Changed: 10/10/2012 10:02am
Appendix-C.pdf | pdf | 1.1 MB | Last Changed: 10/10/2012 10:02am
Appendix D: assessment of materiality of problems with interconnection charges under the current TPM
Appendix-D.pdf | pdf | 211 KB | Last Changed: 10/10/2012 10:02am
Correction to Appendix D: Assessment of materiality of problems with interconnection charges under the current TPM
Appendix-D-corrected.pdf | pdf | 543 KB | Last Changed: 14/12/2012 11:42am
Appendix-E.pdf | pdf | 890 KB | Last Changed: 10/10/2012 10:03am
Appendix-F.pdf | pdf | 257 KB | Last Changed: 10/10/2012 10:03am
Appendix-F-corrected.pdf | pdf | 463 KB | Last Changed: 14/12/2012 11:42am
Overview.pdf | pdf | 237 KB | Last Changed: 10/10/2012 10:03am
QA.pdf | pdf | 78 KB | Last Changed: 10/10/2012 4:48pm
Presentation.pdf | pdf | 717 KB | Last Changed: 10/10/2012 10:04am
SDP-Charge-Data.zip | zip | 52 MB | Last Changed: 11/10/2012 8:03pm
SDP-Charge-Data-Updated20121101.zip | zip | 67 MB | Last Changed: 02/11/2012 12:18pm
TPM-Release-Presentation-HeatMapData.zip | zip | 9 KB | Last Changed: 11/10/2012 8:03pm
Benefit-by-TX-Region-Data-Published.xlsx | xlsx | 15 KB | Last Changed: 12/10/2012 7:49pm
Transmission investment private benefit by retail area, generator and large load (updated 1/11/2012)
Benefit-by-TX-Region-Data-Published-Updated20121101.xlsx | xlsx | 17 KB | Last Changed: 02/11/2012 12:18pm
Node-to-region-mapping.xlsx | xlsx | 12 KB | Last Changed: 15/10/2012 10:45am
AnnualExpectedRevenueByInvestment.xlsx | xlsx | 11 KB | Last Changed: 15/10/2012 10:45am
AnnualExpectedRevenueByInvestment-Updated20111101.xlsx | xlsx | 11 KB | Last Changed: 02/11/2012 12:18pm
Annual-LCE.xlsx | xlsx | 9.2 KB | Last Changed: 18/10/2012 9:08am
Full-Pnode-types.xls | xls | 42 KB | Last Changed: 18/10/2012 9:09am
GeneratingStationListSep2012.xls | xls | 188 KB | Last Changed: 18/10/2012 9:09am
gxp-mean-MW.xls | xls | 67 KB | Last Changed: 18/10/2012 9:21am
RCPD-percentage-by-year.xls | xls | 63 KB | Last Changed: 18/10/2012 9:09am
RCPI-percentage-by-year.xls | xls | 56 KB | Last Changed: 18/10/2012 9:09am
Instructions-TPMvSPD-model.pdf | pdf | 8.6 KB | Last Changed: 18/10/2012 9:20am
TPM-consultation-Auckland.pdf | pdf | 965 KB | Last Changed: 24/10/2012 9:28am
These slides were presented to the Auckland forum, They were amended slightly from those presented in Wellington and Christchurch in order to remove some minor errors and add a slide regarding load control.
BenefitandSPAlgorithm.pdf | pdf | 70 KB | Last Changed: 24/10/2012 1:12pm
Questions-and-responses.pdf | pdf | 104 KB | Last Changed: 21/12/2012 3:13pm
MonthlySummarySPDData.csv | csv | 3.5 KB | Last Changed: 02/11/2012 2:29pm
Rental-breakdown-based-on-Final-Pricing-schedules-v3.xlsx | xlsx | 17 KB | Last Changed: 13/11/2012 1:42pm
The data in this spreadsheet has been corrected, most significantly in the treatment of fixed losses.
ResidualChargeByPeriod.zip | zip | 382 KB | Last Changed: 13/11/2012 1:45pm
SPDChargeByPeriodNode.zip | zip | 91 MB | Last Changed: 13/11/2012 1:46pm
SPDChargeByPeriodNodeCT.zip | zip | 24 MB | Last Changed: 13/11/2012 1:47pm
Monthly-SPD-charges-and-residual-updated20121113published.xlsx | xlsx | 14 KB | Last Changed: 13/11/2012 1:45pm
Transmission pricing methodology review: Estimation of impacts of Authority TPM proposal on consumer prices by line company area
TPM-estimation-on-cosumer-prices-by-line-company.pdf | pdf | 166 KB | Last Changed: 06/12/2012 11:48am
This has been updated to correct errors in relation to the calculation of the impact on retail tariffs across all line company areas. The values in relation to individual line companies remain unchanged, however
Spreadsheet for calculation of figures in “Transmission pricing methodology review: Estimation of impacts of Authority TPM proposal on consumer prices by line company area”
TPM-Comparison-existing-vs-proposed-on-retail-charges-published.xlsx | xlsx | 155 KB | Last Changed: 07/12/2012 12:26pm
CBA-TPM-v11.zip | zip | 73 KB | Last Changed: 29/11/2012 10:36am
frontier-transmission-pricing-advisory-groups.pdf | pdf | 535 KB | Last Changed: 21/12/2012 3:14pm
TPM-Net-Benefit-Data.zip | zip | 124 MB | Last Changed: 14/01/2013 12:55pm