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.
Submissions
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 submissions@ea.govt.nz 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.
Submissions
Electricity Authority
PO Box 10041
Wellington 6143
or
Submissions
Electricity Authority
Level 7, ASB Bank Tower
2 Hunter Street
Wellington
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.
Consultation Papers
Transmission pricing methodology review - issues and proposal
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 Appendix A: Format for submissions
Word-version-of-TPM-questions.DOCX | docx | 49 KB | Last Changed: 14/12/2012 11:37am
Appendix B: Overview of the evolution of transmission pricing
Appendix-B.pdf | pdf | 48 KB | Last Changed: 10/10/2012 10:02am
Appendix C: Assessment of materiality of problems with HVDC charges under the current TPM
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: Using the SPD method to apply beneficiaries pay
Appendix-E.pdf | pdf | 890 KB | Last Changed: 10/10/2012 10:03am
Appendix F: Cost-benefit analysis of TPM proposal
Appendix-F.pdf | pdf | 257 KB | Last Changed: 10/10/2012 10:03am
Correction to Appendix F: Cost-benefit analysis of TPM proposal
Appendix-F-corrected.pdf | pdf | 463 KB | Last Changed: 14/12/2012 11:42am
TPM presentation for issues paper release
Presentation.pdf | pdf | 717 KB | Last Changed: 10/10/2012 10:04am
Half hourly SPD benefit based charge by investment
SDP-Charge-Data.zip | zip | 52 MB | Last Changed: 11/10/2012 8:03pm
Half hourly SPD benefit based charge by investment (updated 1/11/2012)
SDP-Charge-Data-Updated20121101.zip | zip | 67 MB | Last Changed: 02/11/2012 12:18pm
TPM_Presentation_HeatMap_Data
TPM-Release-Presentation-HeatMapData.zip | zip | 9 KB | Last Changed: 11/10/2012 8:03pm
Transmission investment private benefit by retail area, generator and large load
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
Node-to-region-mapping.xlsx | xlsx | 12 KB | Last Changed: 15/10/2012 10:45am
Annual Expected Revenue By Investment
AnnualExpectedRevenueByInvestment.xlsx | xlsx | 11 KB | Last Changed: 15/10/2012 10:45am
Annual Expected Revenue by Investment (updated 1/11/2012)
AnnualExpectedRevenueByInvestment-Updated20111101.xlsx | xlsx | 11 KB | Last Changed: 02/11/2012 12:18pm
Loss and Constraint Excess by year
Annual-LCE.xlsx | xlsx | 9.2 KB | Last Changed: 18/10/2012 9:08am
Full node list with node type (export/import)
Full-Pnode-types.xls | xls | 42 KB | Last Changed: 18/10/2012 9:09am
List of existing generation stations including connection nodes
GeneratingStationListSep2012.xls | xls | 188 KB | Last Changed: 18/10/2012 9:09am
Average MW load and generation by node by year
gxp-mean-MW.xls | xls | 67 KB | Last Changed: 18/10/2012 9:21am
RCPD percentage of total New Zealand load by year
RCPD-percentage-by-year.xls | xls | 63 KB | Last Changed: 18/10/2012 9:09am
RCPI percentage of total New Zealand generation by year
RCPI-percentage-by-year.xls | xls | 56 KB | Last Changed: 18/10/2012 9:09am
Instructions for downloading the TPM vSPD model
Instructions-TPMvSPD-model.pdf | pdf | 8.6 KB | Last Changed: 18/10/2012 9:20am
Presentation given to Transmission Pricing Review Issues and Proposal Forum
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.
Benefit and SPD charge calculation algorithm
BenefitandSPAlgorithm.pdf | pdf | 70 KB | Last Changed: 24/10/2012 1:12pm
Transmission pricing consultation - questions and responses
Questions-and-responses.pdf | pdf | 104 KB | Last Changed: 21/12/2012 3:13pm
Monthly SPD benefit based charge by investment
MonthlySummarySPDData.csv | csv | 3.5 KB | Last Changed: 02/11/2012 2:29pm
Annual rental breakdown between asset classes based on Final Pricing schedules
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.
Total SPD and residual costs (prior to allocation through RCPI /RCPD) by trading period
ResidualChargeByPeriod.zip | zip | 382 KB | Last Changed: 13/11/2012 1:45pm
Total SPD charge by node and trading period (normalised data format)
SPDChargeByPeriodNode.zip | zip | 91 MB | Last Changed: 13/11/2012 1:46pm
Total SPD charge by node and trading period (cross-tabbed data format)
SPDChargeByPeriodNodeCT.zip | zip | 24 MB | Last Changed: 13/11/2012 1:47pm
Monthly SPD benefit-based charge by investment, and residual prior to allocation
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
TPM: Optuions and guidelines - issues paper for TPAG June 2004
frontier-transmission-pricing-advisory-groups.pdf | pdf | 535 KB | Last Changed: 21/12/2012 3:14pm
Half hourly SPD net benefit by investment
TPM-Net-Benefit-Data.zip | zip | 124 MB | Last Changed: 14/01/2013 12:55pm




