Executive summary
On 30 September 2011, Western Power submitted its proposed revisions to the Access Arrangement to the Economic Regulation Authority for review. These proposed revisions are the third iteration of the Access Arrangement and will apply to the period 1 July 2012 to 30 June 2017.
The Access Arrangement, set out in the Electricity Networks Access Code 2004, defines the way Western Power operates as a business; how it demonstrates its efficient operation and how it recovers its expenditure from customers.
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Where the first two Access Arrangements covered three year periods, AA3 will cover a five year period of network development and management reflecting the growing level of maturity with which the business has approached the task of demonstrating the appropriateness and efficiency of its planned expenditure.
To achieve this, Western Power’s forecasting and planning has had to deliver robust, effective and appropriate plans that are cognisant of a range of customer and generation development scenarios, flexible enough to meet the growing needs of the State but focussed on the development of an electricity network that effectively and efficiently occupies its role as one of the State’s key pieces of economic and social infrastructure.
INTRODUCTION
Reflecting the increasing rigour in Western Power’s planning process, this Transmission and Distribution Annual Planning Report (APR) builds on the level of depth and detail presented in past versions of this document.
This APR highlights the economic, commercial, social and environmental drivers of the business’ decision making, highlights the emerging issues and the themes of activities employed to address them and presents network users with a valuable first step in considering how, when and where they may seek to interact with the Western Power Network.