Ergon Energy Corporation Limited Consultation & Draft Recommendation – Supply to Maryborough Area Emerging Distribution Network Constraint
Where the technical limits of a distribution system will be exceeded and the rectification options are likely to exceed $10M, Ergon Energy is required under the National Electricity Rules s5.6.2(f) to consult with affected Registered Participants, AEMO and Interested Parties within the time required for corrective action and meet certain requirements, including undertaking analysis that satisfies the AER’s Regulatory Test, in selection of an appropriate solution.
Ergon Energy is responsible (under its Distribution Authority) for electricity supply to the Maryborough area in southern Queensland. We have identified emerging limitations in the electricity distribution network supplying Maryborough. The loads on Ergon Energy’s zone substations and 11kV networks in Maryborough have progressively increased such that augmentation is required if reliable supply is to be maintained.
In order to ensure that supply to customers in the Maryborough area complies with Ergon Energy’s security of supply criteria, initial corrective action will be required to be completed prior to the summer of 2013/14. A decision about the selected option is required by May 2010 if any option involving significant construction is to be completed by June 2013.
Ergon Energy published a Request for Information relating to this emerging network constraint on 27 January 2010. No submissions were received by the closing date of 24 February 2010.
Two feasible solutions to the emerging network constraint have been identified:
Option 1 Establish a Maryborough North Substation in 2013
Option 2 Redevelop Maryborough City Substation in 2013
Submissions in writing (electronic preferably) are due by 25 March 2010 and should be lodged to:
Ergon Energy Corporation Limited
P O Box 15107
City East QLD 4002
Attention:System Development
Email: Glenys.Davies@ergon.com.au
A decision about the selected option is required by May 2010 if any option involving significant construction is to be in place by June 2013.
Updated information will be provided on our web site:
http://www.ergon.com.au/network_info/consultations/default.asp
For further information, please contact:
Glenys Davies
Ph (07) 4931 2661
Email: Glenys.Davies@ergon.com.au
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