Commission to begin further work on WACC input methodologies
Following recent stakeholder consultation, the Commerce Commission has decided to issue a notice of intention to do
further work on the input methodologies relating to the percentile estimate of the weighted average cost of capital
(WACC). The WACC is used in the price-quality path and information disclosure regimes that apply to businesses regulated
under Part 4 of the Commerce Act 1986.
In its recent merits review judgment, the High Court suggested that using the 75th percentile may be at odds with the
Part 4 objective to limit the ability of regulated suppliers to earn excessive profits. In light of the High Court’s
comments, and subsequent requests from consumers, the Commission sought submissions on whether it should consider
reviewing or amending the input methodologies for the cost of capital at this time.
“Having considered submitters’ views, we have decided to begin further work on whether using the 75th percentile is
appropriate,” said Commerce Commission Deputy Chair Sue Begg. “We believe that this process is necessary to address the
return on investment uncertainty that will exist until this issue is resolved. Our aim is to complete this work prior to
November 2014, when electricity lines prices will be set for the next five years,” said Ms Begg.
“The Commission has an open mind about the outcome of this work and we are keen to hear from interested parties with
further evidence or expert reports. We are not pre-judging the direction of any potential change or whether any change
is even necessary,” Ms Begg said.
“While we aim to complete the work by November, in the event that all the issues involved cannot be satisfactorily
resolved before then, we will consider bringing forward the overall review of the WACC input methodologies,” said Ms
Begg.
The process update paper can be viewed at http://www.comcom.govt.nz/regulated-industries/input-methodologies-2/further-work-on-wacc/
The Commission welcomes further submissions until 5pm on 1 May 2014, these should be emailed toregulation.branch@comcom.govt.nz
Ends