❓ A WA parliamentary question seeks information on the power supply planning for Grange Resources' proposed Southdown magnetite mine, including power requirements, supply options, and potential grid upgrades for Wellstead and Walpole.
AnsweredQoN 5158Legislative Assembly
QuestionView source ↗
In relation to the proposed Southdown magnetite mine of Grange Resources, I ask:
(a) at what stage is planning for the power supply that will be needed for the mine;
(b) what power requirements have Grange Resources identified as being needed for the mine;
(c) what are the power supply options that have been considered so far;
(d) will any new power supply to the mine result in an upgrade of capacity for the grid servicing Wellstead; and
(i) if so, what will it be; and
(e) will any new power supply for the mine result in an upgrade of capacity for the grid servicing the area west of Wellstead to Walpole; and
(i) if so, what will it be?
(a) at what stage is planning for the power supply that will be needed for the mine;
(b) what power requirements have Grange Resources identified as being needed for the mine;
(c) what are the power supply options that have been considered so far;
(d) will any new power supply to the mine result in an upgrade of capacity for the grid servicing Wellstead; and
(i) if so, what will it be; and
(e) will any new power supply for the mine result in an upgrade of capacity for the grid servicing the area west of Wellstead to Walpole; and
(i) if so, what will it be?
AnswerView source ↗
Answered
17 May 2011
Responded by
Minister representing the Minister for Energy
Response time
34 days
(a) Western Power has had advanced discussion with Grange Resources and completed a detailed assessment of the connection options available and is currently in the process of developing a Regulatory Test submission to the Economic Regulation Authority (ERA) recommending a preferred overall connection option.Work continues to secure environmental approvals for the overhead line routes.
(b) Grange Resources has indicated that the maximum power consumed by the mine will be 180 MW.
(c) Western Power has studied a range of options for supplying the Southdown mine utilising a number of transmission voltages and line routes. A number of these including reinforcement to Albany and supply via a new line from Albany.
(d) The proposed 330kV transmission infrastructure will supply only the Southdown mine in the first instance. However the transmission infrastructure will be available to reinforce the wider electrical network in the Wellstead area in the future subject to financial and regulatory approvals
(e) The network to the west of Wellstead as far as Walpole is currently supplied from existing transmission substations in Mount Barker and Albany. The capacity of the transmission network to supply Mt Baker and Albany is limited by voltage constraints and the thermal ratings of the transmission lines. Depending on the option selected for the new line section between Muja and Kojonup, the voltage constraint on the existing transmission network south of Kojonup may be relaxed yielding a small increase in capacity.
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(b) Grange Resources has indicated that the maximum power consumed by the mine will be 180 MW.
(c) Western Power has studied a range of options for supplying the Southdown mine utilising a number of transmission voltages and line routes. A number of these including reinforcement to Albany and supply via a new line from Albany.
(d) The proposed 330kV transmission infrastructure will supply only the Southdown mine in the first instance. However the transmission infrastructure will be available to reinforce the wider electrical network in the Wellstead area in the future subject to financial and regulatory approvals
(e) The network to the west of Wellstead as far as Walpole is currently supplied from existing transmission substations in Mount Barker and Albany. The capacity of the transmission network to supply Mt Baker and Albany is limited by voltage constraints and the thermal ratings of the transmission lines. Depending on the option selected for the new line section between Muja and Kojonup, the voltage constraint on the existing transmission network south of Kojonup may be relaxed yielding a small increase in capacity.
Notice: This document is created or edited using unregistered or evaluation copy of rtLib valid for testing or development purposes only. To use it for productive or any other purposes please register it. You may purchase the license on
http://www.rtlib.com
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