Access Arrangement 2022-2027

The ERA published an issues paper on 4 March 2022. Submissions received on the issues paper are available below.

An online public forum was held on 25 March 2022. The slides presented at the forum and a transcript are available below.

Western Power submitted further access arrangement information on 19 May 2022.

Western Power submitted additional tariff structure and reference services information on 1 July 2022. Submissions received on the additional information are available below.

The ERA published its draft decision on 9 September 2022.

A public forum on the ERA’s draft decision was held on 27 September 2022. The slides presented at the forum and a transcript are available below.

Western Power submitted a revised proposal on 15 November 2022.

Submissions received on the draft decision and Western Power's revised proposal are available below.

Western Power submitted further access arrangement information on its revised proposal on 18 January 2023.

The ERA published its final decision on 31 March 2023.

During the AA5 period, the ERA is monitoring Western Power’s progress against the requirements of the access arrangement and publishing an annual progress report.  The annual reports are available below.

Annual progress reports

Date	Documents	File type
10-Jul-25	Second annual progress report	1.5 MB
05-Jul-24	First annual progress report	873 kB

Clean version of Final Decision Approved Access Arrangement and Access Arrangement supporting information

Date	Documents	File type
03-Nov-23	Approved Access Arrangement	788 kB
03-Nov-23	Appendix A – Electricity Transfer Access Contract	1.2 MB
03-Nov-23	Appendix B – Applications and Queuing Policy	1 MB
03-Nov-23	Appendix C.1 – Contributions Policy	414 kB
03-Nov-23	Appendix C.2 – Distribution Low Voltage Connection Scheme	292 kB
03-Nov-23	Appendix D – Multi-Function Asset Policy	536 kB
03-Nov-23	Appendix E – Reference Services	1.0 MB
03-Nov-23	Appendix F.1 – Reference Tariff Change Forecast	377 kB
03-Nov-23	Appendix F.2 – Tariff Structure Statement	1.2 MB

Final Decision

Date	Documents	File type
31-Mar-23	Final Decision Overview	31 kB
31-Mar-23	Attachment 1 - Price Control and Target Revenue	394 kB
31-Mar-23	Attachment 2 - Regulated Asset Base	261 kB
31-Mar-23	Attachment 3A - AA4 Capital Expenditure	261 kB
31-Mar-23	Attachment 3B - AA5 Capital Expenditure	490 kB
31-Mar-23	Attachment 4 - Depreciation	440 kB
31-Mar-23	Attachment 5 - Return on Regulated Asset Base	441 kB
31-Mar-23	Attachment 6 - Operating Expenditure	441 kB
31-Mar-23	Attachment 7 - Other Components of Target Revenue	126 kB
31-Mar-23	Attachment 8 - Services	362 kB
31-Mar-23	Attachment 9 - Service Standard Benchmarks and Adjustment Mechanism	2.1 MB
31-Mar-23	Attachment 10 - Expenditure Incentives and Other Adjustment Mechanisms	2.1 MB
31-Mar-23	Attachment 11 - Network Tariffs	83 kB
31-Mar-23	Attachment 12 - Policies and Contracts	678 kB
31-Mar-23	Target Revenue Model	16 kB
31-Mar-23	Consultant Report - Engevity - Western Power AA5 Expenditure Revised Proposal Review – Supplementary Report	678 kB

Final Decision Approved Access Arrangement and Access Arrangement supporting information (Appendix 4)

Date	Documents	File type
31-Mar-23	Approved Access Arrangement - Track Changes	31 kB
31-Mar-23	Appendix A - Electricity Transfer Access Contract	394 kB
31-Mar-23	Appendix B - Applications and Queuing Policy - Track Changes	261 kB
31-Mar-23	Appendix C.1 - Contributions Policy	261 kB
31-Mar-23	Appendix C.2 - Distribution Low Voltage Connection Scheme	490 kB
31-Mar-23	Appendix D - Multi-Function Asset Policy	440 kB
31-Mar-23	Appendix E - Reference Services - Track Changes	441 kB
31-Mar-23	Appendix F.1 - Reference Tariff Change Forecast	441 kB
31-Mar-23	Appendix F.2 - Tariff Structure Statement - Track Changes	441 kB

Further Access Arrangement information provided by Western Power on its revised proposal

Date	Documents	File type
19-Jan-23	Further Access Arrangement information on revised proposal	1 MB
19-Jan-23	Revised regulatory revenue model	1.5 MB

Public submissions on draft decision and Western Power's revised proposal

Date	Documents	File type
19-Jan-23	Energy Policy WA	31 kB
19-Jan-23	WA Local Government Association	394 kB
19-Dec-22	Alinta Energy	261 kB
19-Dec-22	Australian Energy Council	261 kB
19-Dec-22	Change Energy	490 kB
19-Dec-22	Collgar Renewables	440 kB
19-Dec-22	Evie Submission 1	441 kB
19-Dec-22	Evie Submission 2	441 kB
19-Dec-22	Perth Energy	126 kB
19-Dec-22	Synergy Submission 1	362 kB
19-Dec-22	Synergy Submission 2	2.1 MB
19-Dec-22	Synergy Submission 2 Attachment	16 kB
19-Dec-22	WA Expert Consumer Panel	83 kB
19-Dec-22	WA Expert Consumer Panel Attachment A	678 kB
19-Dec-22	WA Expert Consumer Panel Attachment B	3.8 MB

Revised Proposed Access Arrangement and Access Arrangement information

Date	Documents	File type
15-Nov-22	Chair's Letter	310 kB
15-Nov-22	Submission Letter	335 kB
15-Nov-22	Access Arrangement Information for Revised AA5 Proposal	1.8 MB
15-Nov-22	Revised Proposed revisions to the Access Arrangement and Appendices - Clean	8.5 MB

Revised Proposed Access Arrangement supporting information

Date	Documents	File type
15-Nov-22	Appendix A - Electricity Transfer Access Contract - Track Changes	1.4 MB
15-Nov-22	Appendix B - Applications and Queuing Policy - Track Changes	1.1 MB
15-Nov-22	Appendix C.1 - Contributions Policy - Track Changes	526 kB
15-Nov-22	Appendix C.2 - Distribution Low Voltage Connection Scheme - Track Changes	443 kB
15-Nov-22	Appendix D - Multi-Function Asset Policy - Track Changes	757 kB
15-Nov-22	Appendix E - Reference Services - Track Changes	1.1 MB
15-Nov-22	Appendix F.1 - Tariff Structure Statement - Overview	2.0 MB
15-Nov-22	Appendix F.2 - Tariff Structure Statement - Technical Summary	1.7 MB
15-Nov-22	Appendix F.3 - 2022-23 Price List - Track Changes	1.0 MB
15-Nov-22	Revised Proposed revisions to the Access Arrangement - Track Changes	1.1 MB

Revised Proposed Access Arrangement Information - Attachments

Date	Documents	File type
15-Nov-22	AAI - Attachment 1.0 - Access Arrangement Information Document Index	324 kB
15-Nov-22	AAI - Attachment 1.1 - Revised AA5 Regulatory Revenue Model	1.5 MB
15-Nov-22	AAI - Attachment 1.2 - Energy and Customer Numbers Forecast Methodology (2022)	1.9 MB
15-Nov-22	AAI - Attachment 1.3 - Energy and Customer Number Forecast Report (2022)	951 kB
15-Nov-22	AAI - Attachment 1.4 - Proforma Forecast Statements	732 kB
15-Nov-22	AAI - Attachment 6.1 - Cost Escalation Forecasts for Western Power’s Access Arrangement 5	690 kB
15-Nov-22	AAI - Attachment 9.1 - Community & Customer Engagement Program (CEP) Report	2.5 MB
15-Nov-22	AAI - Attachment 11.1 - Indicative 2023-24 Price Tables	762 kB
15-Nov-22	AAI - Attachment 12.1 - Multi-Function Asset Policy Explanatory Statement - Track changes	614 kB
15-Nov-22	AAI - Attachment 12.1 - Multi-Function Asset Policy Explanatory Statement	551 kB

Public Forum 27 September 2022

Date	Documents	File type
04-Nov-22	Slides	1.5 MB
04-Nov-22	Transcript	1.4 MB

Draft Decision

Date	Documents	File type
09-Sep-22	Draft Decision Overview	891 kB
09-Sep-22	Attachment 1 - Price Control and Target Revenue	425 kB
09-Sep-22	Attachment 2 - Regulated Asset Base	346 kB
09-Sep-22	Attachment 3A - AA4 Capital Expenditure	342 kB
09-Sep-22	Attachment 3B - AA5 Capital Expenditure	640 kB
09-Sep-22	Attachment 4 - Depreciation	322 kB
09-Sep-22	Attachment 5 - Return on Regulated Asset Base	950 kB
09-Sep-22	Attachment 6 - Operating Expenditure	532 kB
09-Sep-22	Attachment 7 - Other Components of Target Revenue	507 kB
09-Sep-22	Attachment 8 - Services	473 kB
09-Sep-22	Attachment 9 - Service Standard Benchmarks and Adjustment Mechanism	477 kB
09-Sep-22	Attachment 10 - Expenditure Incentives and Other Adjustment Mechanisms	353 kB
09-Sep-22	Attachment 11 - Network Tariffs	440 kB
09-Sep-22	Attachment 12 - Policies and Contracts	563 kB
09-Sep-22	Target Revenue Model	1.6 MB
09-Sep-22	Consultant Report - Engevity - Western Power AA5 Expenditure Proposal Review - Executive Summary	1 MB
09-Sep-22	Consultant Report - Engevity - Western Power AA5 Expenditure Proposal Review - Attachments	6.9 MB

Public submissions on additional tariff structure and reference services information

Date	Documents	File type
28-Jul-22	Australian Energy Council	207 kB
28-Jul-22	Collgar Wind Farm	87 kB
28-Jul-22	Electric Vehicle Council	171 kB
28-Jul-22	Evie	560 kB
28-Jul-22	Noel Schubert	913 kB
28-Jul-22	Synergy	550 kB
28-Jul-22	WA Council of Social Service	219 kB
28-Jul-22	WA Expert Consumer Panel	48 kB