Skip to content

Decisions and Proposals

The ERA's decisions and the access arrangement proposals submitted by Western Power during this access arrangement assessment period are available here.

ERA Papers

Date Documents File type
03-Sep-12 Final Decision on proposed variations to Western Power's Access Arrangement for 2009/10 to 2011/12 Contributions Policy (DLVCHS)
Adobe PDF240 kB
03-Jul-12 Draft Decision on Proposed Variations to Western Power’s Access Arrangement for 2009/10 to 2011/12: Contributions Policy
Incorporating changes outlined in the Corrigenda dated 3 July 2012
Adobe PDF 218 kB
28-Jun-12 Draft Decision on Proposed Variations to Western Power’s Access Arrangement for 2009/10 to 2011/12: Contributions Policy
Superseded by the revised Draft Decision released on 3 July 2012
Adobe PDF 220 kB
01-Apr-11 Final Decision on proposed variations to the approved Applications and Queuing Policy
Adobe PDF 107 kB
31-Jan-11 Issues Paper on proposed variations to the approved Applications and Queuing Policy
Adobe PDF 200 kB
19-Jan-10 Further Final Decision
Adobe PDF 817 kB
17-Dec-09 Final Decision (including Corrigenda of 17 December 2009)
Adobe PDF 2.6 MB
04-Dec-09 Final Decision
Adobe PDF 2.6 MB
Target Revenue Calculation (Revenue Model) - Appendix A
Adobe PDF 650 kB
13-Aug-09 Draft Decision (including Corrigenda of 13 August 2009)
Adobe PDF 2.8 MB
05-Aug-09 Public forum slides from 5 August 2009
Adobe PDF 342 kB

Description: (Electricity Access Division) Third Party Access>Electricity>Access Arrangements>Access Arrangement Review Process
16-Jul-09 Draft Decision
Adobe PDF 2.8 MB
Appendix C - Target Revenue Calculation (Revenue Model)
Adobe PDF 237 kB
Appendix C - BDO Kendalls Western Power's Regulatory Financial Audit
Adobe PDF 290 kB
Appendix C - Geoff Brown & Associates Ltd's Review of Western Power's Expenditure Governance Western Power
Adobe PDF 113 kB
Appendix C - Geoff Brown & Associates Ltd's Review of Western Power's New Facilities Investment Test Compliance
Adobe PDF 375 kB
Appendix C - Wilson Cook & Co's Review of Western Power's Expenditures
Adobe PDF 538 kB
11-Nov-08 Issues Paper
Adobe PDF 372 kB

Description: (Electricity Access Division) Third Party Access>Electricity>Access Arrangements>Access Arrangement Review Process
10-Nov-08 Public Forum slides from Monday, 10 November 2008
Adobe PDF 290 kB

Description: (Electricity Access Division) Third Party Access>Electricity>Access Arrangements>Access Arrangement Review Process

Western Power's proposed access arrangement (incorporating approved amended proposed revisions)

Date Documents File type
14-Feb-11 Proposed Modifications to the Applications and Queuing Policy - Not Approved
(Document was published on the 31-Jan-11 and was updated on the 14-Feb-11)
Adobe PDF 1.5 MB
19-Jan-10 Submission of Amended Proposed Access Arrangement Revisions Covering Letter Adobe PDF 1.3 MB
Amended Proposed Access Arrangement Revisions - Supporting Documentation Letter Adobe PDF 475 kB
CORRIGENDA for the Amended Proposed Revisions to the Access Arrangement for the South West Network Adobe PDF 440 kB
Amended Proposed Revisions to the Access Arrangement for the South West Network owned by Western Power Adobe PDF 162 kB
Appendix 1 - Applications and Queuing Policy Adobe PDF 226 kB
Appendix 2 - Transfer and Relocation Policy Adobe PDF 83 kB
Appendix 3 - Contributions Policy Adobe PDF 84 kB
Appendix 4 - Electricity Transfer Access Contract
Variations to this document were approved on 20-Oct-10. View Variation Notice and Approved Varied Appendix 4.
Adobe PDF 400 kB
Appendix 5 - Price List - 01 March 2010 Adobe PDF 110 kB
Appendix 6 - Price List Information - 01 March 2010 Adobe PDF 397 kB
Appendix 7 - Reference Services Adobe PDF 110 kB
Appendix 8 - Explanatory notes regarding the price control arrangements Adobe PDF 104 kB
Appendix 9 - Distribution Headworks Methodology Adobe PDF 61 kB
19-Jan-10 Amended Revised Access Arrangement Information for the Network of the South West Interconnected System Adobe PDF 274 kB
Attachment 1 - Western Power's Detailed Response to Required Amendment 34 Adobe PDF 38 kB
Attachment 2 - Revenue Model Adobe PDF 189 kB
Attachment 3 - Pro Forma Regulatory Financial Statements Adobe PDF 998 kB
Attachment 4 - Pro Forma Forecast Statements Adobe PDF 63 kB

Western Power's Amended Proposed Revisions

Date Documents File type
04-Jan-10 Submission of Amended Proposed Access Arrangement Revisions - Covering Letter Adobe PDF 1.3 MB
Amended Proposed Access Arrangement Revisions - Supporting Documentation Letter Adobe PDF 475 kB
Amended Proposed Revisions to the Access Arrangement for the South West Network owned by Western Power Adobe PDF 162 kB
Appendix 1 - Applications and Queuing Policy Adobe PDF 226 kB
Appendix 2 - Transfer and Relocation Policy Adobe PDF 83 kB
Appendix 3 - Contributions Policy Adobe PDF 84 kB
Appendix 4 - Electricity Transfer Access Contract Adobe PDF 400 kB
Appendix 5 - Price List - 01 March 2010 Adobe PDF 110 kB
Appendix 6 - Price List Information - 01 March 2010 Adobe PDF 397 kB
Appendix 7 - Reference Services Adobe PDF 110 kB
Appendix 8 - Explanatory notes regarding the price control arrangements Adobe PDF 104 kB
Appendix 9 - Distribution Headworks Methodology Adobe PDF 61 kB
04-Jan-10 Amended Revised Access Arrangement Information Adobe PDF 274 kB
Attachment 1 - Western Power's Detailed Response to Required Amendment 34 Adobe PDF 38 kB
Attachment 2 - Revenue Model Adobe PDF 189 kB
Attachment 3 - Pro Forma Regulatory Financial Statements Adobe PDF 998 kB
Attachment 4 - Pro Forma Forecast Statements Adobe PDF 63 kB

Western Power's Proposed Revisions

Date Documents File type
08-Oct-08 Submission of Proposed Access Arrangement Revisions Covering Letter Adobe PDF 457 kB
Proposed Revisions to the Access Arrangement for the South West Network owned by Western Power Adobe PDF 148 kB
AA Appendix 1 - Applications and Queuing Policy Adobe PDF 250 kB
AA Appendix 2 - Transfer and Relocation Policy Adobe PDF 85 kB
AA Appendix 3 - Contributions Policy Adobe PDF 84 kB
AA Appendix 4 - Electricity Transfer Access Contract Adobe PDF 409 kB
AA Appendix 5 - 2009-10 Price List Adobe PDF 186 kB
AA Appendix 6 - 2009-10 Price List Information Adobe PDF 514 kB
AA Appendix 7 - Reference Services Adobe PDF 113 kB
AA Appendix 8 - Explanatory notes regarding the price control arrangements Adobe PDF 95 kB
08-Oct-08 Proposed Revisions to the Access Arrangement - Marked Up Version Adobe PDF 236 kB
AA Appendix 1 - Applications and Queuing Policy - Marked Up Version Adobe PDF 292 kB
AA Appendix 2 - Transfer and Relocation Policy - Marked Up Version Adobe PDF 93 kB
AA Appendix 3 - Contributions Policy - Marked Up Version Adobe PDF 103 kB
AA Appendix 4 - Electricity Transfer Access Contract - Marked Up Version Adobe PDF 497 kB
AA Appendix 7 - Reference Services - Marked Up Version Adobe PDF 118 kB
08-Oct-08 Revised Access Arrangement Information for the Network of the South West Interconnected System Adobe PDF 1.2 MB
AAI Appendix 1 - Capital and Operating Expenditure 2009-10 to 2011-12 Adobe PDF 1.7 MB
AAI Appendix 2 - Material and labour cost escalation factors Adobe PDF 553 kB
AAI Appendix 3 - Quantitative Risk Assessment Adobe PDF 340 kB
AAI Appendix 4 - Transmission Asset Cost Benchmarking Adobe PDF 131 kB
AAI Appendix 5 - Assessment of AA1 CAPEX - NFIT Submission Adobe PDF 501 kB
AAI Appendix 6 - Weighted Average Cost of Capital Adobe PDF 2.9 MB
AAI Appendix 7 - Revised Access Arrangement Real Pre-tax Model Adobe PDF 108 kB
AAI Appendix 8 - Regulatory Financial Statements - 30 June 2007 (Updated version 02-Dec-08)

AAI Appendix 8 - Regulatory Financial Statements - 30 June 2008 (Updated version 02-Dec-08)

AAI Appendix 9 - Electricity Networks Pro Forma Forecast Statements Adobe PDF 44 kB
AAI Appendix 10 - Applications and Queuing Policy Revisions Adobe PDF 89 kB
AAI Appendix 11 - Contributions Policy Revisions Adobe PDF 121 kB
AAI Appendix 12 - Standard Access Contract revisions Adobe PDF 88 kB