Transpower is subject to the regulatory provisions under subpart 9 of Part 4 of the Commerce Act 1986 (the Act). Subpart 9 provides that electricity lines services, including Transpower, are subject to price-quality regulation and information disclosure. Transpower is subject to individual price-quality regulation.
The Commission made its input methodologies determination for electricity lines services supplied by Transpower (electricity transmission services) on 22 December 2010 and published the determination in the New Zealand Gazette on 20 January 2011. The determination includes input methodologies for asset valuation, cost allocation, regulatory tax treatment, the cost of capital and regulatory rules and processes.
In addition to these input methodologies, the Commission has also determined an input methodology for Transpower's capital expenditure proposals (Capex IM) in January 2012.
On 8 March 2011 the Commission published a memorandum on its process for considering requests for amendments or clarifications of the Part 4 determinations it made in December 2010. This process document along with a summary of requests for amendments or clarifications and the Commission's responses can be found below under Requests for amendments or clarifications.
In December 2011, Clifford J issued a judgement in the High Court that held that aspects of the December 2010 input methodologies relating to Transpower's leverage were unlawful. At the court's direction the Commission consulted on this and re-issued the input methodologies in a Determination on 29 June 2012. The input methodologies are the same as the December 2011 consolidated determination.
On this page you will find the current Transpower input methodologies determinations and the associated reasons papers located under Current documents that apply. Determinations of the Cost of Capital in accordance with the Input Methodologies Determination are published on the Cost of Capital page. Documents relating to consultation undertaken by the Commission for Transpower's cost of capital are located under Supporting documents. Documents relating to the consultation for the Capex IM are located in the Online archive.
Documents
Current documents that apply
28/02/2017 (5 documents)
- Transpower capex IM review – Decisions and reasons – 29 March 2018 PDF (1.5 MB)
- Published on 29 March 2018
- Transpower Input Methodologies Determination 2010 - consolidated as of 28 February 2017 PDF (1 MB)
- Published on 28 February 2017
- Consolidated Transpower Capital Expenditure Input Methodology Determination as at 5 February 2015 PDF (999 KB)
- Published on 05 March 2015
- Capex IM Final Reasons Paper 31 January 2012 PDF (2 MB)
- Transpower Input Methodologies Reasons Paper Dec 2010 PDF (1.2 MB)
Input Methodologies for Transpower
05/03/2015 (6 documents)
- [2015] NZCC 27 Transpower Input Methodologies Amendment Determination 2015 (No 2) – 21 October 2015 PDF (332 KB)
- Published on 22 October 2015
- [2015] NZCC 3 Transpower Input Methodologies Amendment Determination 2015 – 5 Feb 2015 PDF (291 KB)
- Published on 01 April 2015
- Determination of the Cost of Capital for Services Regulated under Part 4 of the Commerce Act 1986 3 March 2011 PDF (690 KB)
- NZCC 17/2012 Transpower Input Methodologies Determination 29 June 2012 PDF (1.3 MB)
- Published on 07 December 2012
- Transpower IM leverage reasons paper 29 June 2012 PDF (827 KB)
- NZCC 2/2012 Transpower Capital Expenditure Input Methodology determination 31 January 2012 PDF (1.1 MB)
- Published on 07 December 2012
Expert Report on Leverage for Transpower
29/06/2012 (1 documents)
Cross submissions on Leverage for Transpower
29/06/2012 (5 documents)
- MEUG Cross submission RWE Factbook Transpower Leverage Transpower IM 11 May 2012 PDF (6.6 MB)
- MEUG Cross submission Transpower Leverage Appendix C Transpower IM 11 May 2012 PDF (38 KB)
- MEUG Cross submission on Transpower Leverage Transpower IM 11 May 2012 PDF (373 KB)
- PwC Cross submission on Transpower leverage Transpower IM 11 May 2012 PDF (298 KB)
- Transpower Cross submission on Transpower leverage Transpower IM 11 May 2012 PDF (49 KB)
Draft expert report on leverage for Transpower
08/06/2012 (5 documents)
- Martin Lally Draft Leverage and WACC for Transpower IM 7 June 2012 PDF (453 KB)
- Guthrie Review of Draft Lally Report Transpower IM Determination12 June 2012 PDF (169 KB)
- Letter from Transpower Transpower IM 12 June 2012 PDF (279 KB)
- PwC Review of Draft Lally Report Transpower IM 12 June 2012 PDF (229 KB)
- Transpower Review of Draft Lally Report Transpower IM 12 June 2012 PDF (143 KB)
Further correspondence with MEUG - scope of submission
10/05/2012 (3 documents)
Submissions on Transpower leverage
24/04/2012 (9 documents)
- MEUG Appendix XV PricewaterhouseCoopers Queenstown Airport Report 2011 PDF (1 MB)
- MEUG Submission Appendices I to XII April 2012 PDF (2.4 MB)
- MEUG submission Appendix XIII National Grid factsheet April 2012 PDF (2.7 MB)
- MEUG submission on Transpower Leverage FINAL REDACTED April 2012 PDF (1.9 MB)
- NZ Airports Submission on Transpower Leverage Assumption April 2012 PDF (416 KB)
- Transpower submission Attachment Guthrie April 2012 PDF (231 KB)
- Transpower submission Attachment PwC Report April 2012 PDF (458 KB)
- Transpower submission Schedule A Proposed amendments April 2012 PDF (508 KB)
- Transpower submission on leverage value April 2012 PDF (502 KB)
Consultation on Leverage in Transpower Cost of Capital IM
15/03/2012 (3 documents)
Correspondence - Cost of Capital
21/03/2012 (4 documents)
Final Transpower Capital Expenditure Input Methodology Determination and Reasons paper
31/01/2012 (2 documents)
Input Methodologies for Transpower
01/11/2011 (2 documents)
Requests for amendments or clarifications
08/03/2011 (2 documents)