❓ A parliamentary question regarding the capacity of existing transmission lines servicing the Boddington Gold Mine, the upgrades needed for expanded operations, the cost of the upgrades, and the cost-sharing arrangements. The Minister provides detailed answers regarding capacity, scope of work, costs, and funding responsibilities.
AnsweredQoN 528Legislative Council
QuestionView source ↗
BODDINGTON GOLD MINE - TRANSMISSION LINES
I refer to the Boddington Gold Mine and the Bluewaters coal-fired power station in Collie. (1) What capacity electrical transmission line currently services the Boddington Gold Mine? (2) What transmission upgrades will be needed to service the new expanded goldmining operations? (3) How much will the upgrade cost? (4) Who will pay for the transmission upgrade; and what cost-sharing arrangements are in place? Hon KIM CHANCE
I refer to the Boddington Gold Mine and the Bluewaters coal-fired power station in Collie. (1) What capacity electrical transmission line currently services the Boddington Gold Mine? (2) What transmission upgrades will be needed to service the new expanded goldmining operations? (3) How much will the upgrade cost? (4) Who will pay for the transmission upgrade; and what cost-sharing arrangements are in place? Hon KIM CHANCE
AnswerView source ↗
I thank Hon Paul Llewellyn for some notice of this question. (1) The capacity of the existing 132-kilovolt transmission lines supplying Boddington are 145.6 megavolt ampere and 136.7MVA. (2) The scope of work required to supply BGM’s load includes the construction of a new 330/132kV Wells terminal approximately six kilometres east of the existing Boddington zone substation; a new 330kV transmission line approximately 90 kilometres from Shotts switchyard to Wells terminal, which will be done by reconstructing the existing Muja to Boddington 132kV transmission line; and the upgrade and modification of the Boddington substation to accommodate the connection of up to three customer installed and owned 132/33kV transformers. (3) The estimated cost of the upgrade, including contingency and escalation, is $90.5 million. (4) Western Power is allocating the cost of the line using its standard cost allocation methodology. The estimated capital contribution required from BGM is $57.8 million. Approximately $7 million will be funded by Western Power. This is to cover the incremental cost of building the line as a double circuit construction to meet future requirements of Western Power that are not related to the Boddington Gold Mine. The remainder will be recovered from Boddington Gold Mine via ongoing annual network access charges over 15 years.
(1) What capacity electrical transmission line currently services the Boddington Gold Mine? (2) What transmission upgrades will be needed to service the new expanded goldmining operations? (3) How much will the upgrade cost? (4) Who will pay for the transmission upgrade; and what cost-sharing arrangements are in place? Hon KIM CHANCE replied: I thank Hon Paul Llewellyn for some notice of this question. (1) The capacity of the existing 132-kilovolt transmission lines supplying Boddington are 145.6 megavolt ampere and 136.7MVA. (2) The scope of work required to supply BGM’s load includes the construction of a new 330/132kV Wells terminal approximately six kilometres east of the existing Boddington zone substation; a new 330kV transmission line approximately 90 kilometres from Shotts switchyard to Wells terminal, which will be done by reconstructing the existing Muja to Boddington 132kV transmission line; and the upgrade and modification of the Boddington substation to accommodate the connection of up to three customer installed and owned 132/33kV transformers. (3) The estimated cost of the upgrade, including contingency and escalation, is $90.5 million. (4) Western Power is allocating the cost of the line using its standard cost allocation methodology. The estimated capital contribution required from BGM is $57.8 million. Approximately $7 million will be funded by Western Power. This is to cover the incremental cost of building the line as a double circuit construction to meet future requirements of Western Power that are not related to the Boddington Gold Mine. The remainder will be recovered from Boddington Gold Mine via ongoing annual network access charges over 15 years.
(2) What transmission upgrades will be needed to service the new expanded goldmining operations? (3) How much will the upgrade cost? (4) Who will pay for the transmission upgrade; and what cost-sharing arrangements are in place? Hon KIM CHANCE replied: I thank Hon Paul Llewellyn for some notice of this question. (1) The capacity of the existing 132-kilovolt transmission lines supplying Boddington are 145.6 megavolt ampere and 136.7MVA. (2) The scope of work required to supply BGM’s load includes the construction of a new 330/132kV Wells terminal approximately six kilometres east of the existing Boddington zone substation; a new 330kV transmission line approximately 90 kilometres from Shotts switchyard to Wells terminal, which will be done by reconstructing the existing Muja to Boddington 132kV transmission line; and the upgrade and modification of the Boddington substation to accommodate the connection of up to three customer installed and owned 132/33kV transformers. (3) The estimated cost of the upgrade, including contingency and escalation, is $90.5 million. (4) Western Power is allocating the cost of the line using its standard cost allocation methodology. The estimated capital contribution required from BGM is $57.8 million. Approximately $7 million will be funded by Western Power. This is to cover the incremental cost of building the line as a double circuit construction to meet future requirements of Western Power that are not related to the Boddington Gold Mine. The remainder will be recovered from Boddington Gold Mine via ongoing annual network access charges over 15 years.
(3) How much will the upgrade cost? (4) Who will pay for the transmission upgrade; and what cost-sharing arrangements are in place? Hon KIM CHANCE replied: I thank Hon Paul Llewellyn for some notice of this question. (1) The capacity of the existing 132-kilovolt transmission lines supplying Boddington are 145.6 megavolt ampere and 136.7MVA. (2) The scope of work required to supply BGM’s load includes the construction of a new 330/132kV Wells terminal approximately six kilometres east of the existing Boddington zone substation; a new 330kV transmission line approximately 90 kilometres from Shotts switchyard to Wells terminal, which will be done by reconstructing the existing Muja to Boddington 132kV transmission line; and the upgrade and modification of the Boddington substation to accommodate the connection of up to three customer installed and owned 132/33kV transformers. (3) The estimated cost of the upgrade, including contingency and escalation, is $90.5 million. (4) Western Power is allocating the cost of the line using its standard cost allocation methodology. The estimated capital contribution required from BGM is $57.8 million. Approximately $7 million will be funded by Western Power. This is to cover the incremental cost of building the line as a double circuit construction to meet future requirements of Western Power that are not related to the Boddington Gold Mine. The remainder will be recovered from Boddington Gold Mine via ongoing annual network access charges over 15 years.
(4) Who will pay for the transmission upgrade; and what cost-sharing arrangements are in place? Hon KIM CHANCE replied: I thank Hon Paul Llewellyn for some notice of this question. (1) The capacity of the existing 132-kilovolt transmission lines supplying Boddington are 145.6 megavolt ampere and 136.7MVA. (2) The scope of work required to supply BGM’s load includes the construction of a new 330/132kV Wells terminal approximately six kilometres east of the existing Boddington zone substation; a new 330kV transmission line approximately 90 kilometres from Shotts switchyard to Wells terminal, which will be done by reconstructing the existing Muja to Boddington 132kV transmission line; and the upgrade and modification of the Boddington substation to accommodate the connection of up to three customer installed and owned 132/33kV transformers. (3) The estimated cost of the upgrade, including contingency and escalation, is $90.5 million. (4) Western Power is allocating the cost of the line using its standard cost allocation methodology. The estimated capital contribution required from BGM is $57.8 million. Approximately $7 million will be funded by Western Power. This is to cover the incremental cost of building the line as a double circuit construction to meet future requirements of Western Power that are not related to the Boddington Gold Mine. The remainder will be recovered from Boddington Gold Mine via ongoing annual network access charges over 15 years.
Hon KIM CHANCE replied: I thank Hon Paul Llewellyn for some notice of this question. (1) The capacity of the existing 132-kilovolt transmission lines supplying Boddington are 145.6 megavolt ampere and 136.7MVA. (2) The scope of work required to supply BGM’s load includes the construction of a new 330/132kV Wells terminal approximately six kilometres east of the existing Boddington zone substation; a new 330kV transmission line approximately 90 kilometres from Shotts switchyard to Wells terminal, which will be done by reconstructing the existing Muja to Boddington 132kV transmission line; and the upgrade and modification of the Boddington substation to accommodate the connection of up to three customer installed and owned 132/33kV transformers. (3) The estimated cost of the upgrade, including contingency and escalation, is $90.5 million. (4) Western Power is allocating the cost of the line using its standard cost allocation methodology. The estimated capital contribution required from BGM is $57.8 million. Approximately $7 million will be funded by Western Power. This is to cover the incremental cost of building the line as a double circuit construction to meet future requirements of Western Power that are not related to the Boddington Gold Mine. The remainder will be recovered from Boddington Gold Mine via ongoing annual network access charges over 15 years.
I thank Hon Paul Llewellyn for some notice of this question. (1) The capacity of the existing 132-kilovolt transmission lines supplying Boddington are 145.6 megavolt ampere and 136.7MVA. (2) The scope of work required to supply BGM’s load includes the construction of a new 330/132kV Wells terminal approximately six kilometres east of the existing Boddington zone substation; a new 330kV transmission line approximately 90 kilometres from Shotts switchyard to Wells terminal, which will be done by reconstructing the existing Muja to Boddington 132kV transmission line; and the upgrade and modification of the Boddington substation to accommodate the connection of up to three customer installed and owned 132/33kV transformers. (3) The estimated cost of the upgrade, including contingency and escalation, is $90.5 million. (4) Western Power is allocating the cost of the line using its standard cost allocation methodology. The estimated capital contribution required from BGM is $57.8 million. Approximately $7 million will be funded by Western Power. This is to cover the incremental cost of building the line as a double circuit construction to meet future requirements of Western Power that are not related to the Boddington Gold Mine. The remainder will be recovered from Boddington Gold Mine via ongoing annual network access charges over 15 years.
(1) The capacity of the existing 132-kilovolt transmission lines supplying Boddington are 145.6 megavolt ampere and 136.7MVA. (2) The scope of work required to supply BGM’s load includes the construction of a new 330/132kV Wells terminal approximately six kilometres east of the existing Boddington zone substation; a new 330kV transmission line approximately 90 kilometres from Shotts switchyard to Wells terminal, which will be done by reconstructing the existing Muja to Boddington 132kV transmission line; and the upgrade and modification of the Boddington substation to accommodate the connection of up to three customer installed and owned 132/33kV transformers. (3) The estimated cost of the upgrade, including contingency and escalation, is $90.5 million. (4) Western Power is allocating the cost of the line using its standard cost allocation methodology. The estimated capital contribution required from BGM is $57.8 million. Approximately $7 million will be funded by Western Power. This is to cover the incremental cost of building the line as a double circuit construction to meet future requirements of Western Power that are not related to the Boddington Gold Mine. The remainder will be recovered from Boddington Gold Mine via ongoing annual network access charges over 15 years.
(2) The scope of work required to supply BGM’s load includes the construction of a new 330/132kV Wells terminal approximately six kilometres east of the existing Boddington zone substation; a new 330kV transmission line approximately 90 kilometres from Shotts switchyard to Wells terminal, which will be done by reconstructing the existing Muja to Boddington 132kV transmission line; and the upgrade and modification of the Boddington substation to accommodate the connection of up to three customer installed and owned 132/33kV transformers. (3) The estimated cost of the upgrade, including contingency and escalation, is $90.5 million. (4) Western Power is allocating the cost of the line using its standard cost allocation methodology. The estimated capital contribution required from BGM is $57.8 million. Approximately $7 million will be funded by Western Power. This is to cover the incremental cost of building the line as a double circuit construction to meet future requirements of Western Power that are not related to the Boddington Gold Mine. The remainder will be recovered from Boddington Gold Mine via ongoing annual network access charges over 15 years.
(3) The estimated cost of the upgrade, including contingency and escalation, is $90.5 million. (4) Western Power is allocating the cost of the line using its standard cost allocation methodology. The estimated capital contribution required from BGM is $57.8 million. Approximately $7 million will be funded by Western Power. This is to cover the incremental cost of building the line as a double circuit construction to meet future requirements of Western Power that are not related to the Boddington Gold Mine. The remainder will be recovered from Boddington Gold Mine via ongoing annual network access charges over 15 years.
(4) Western Power is allocating the cost of the line using its standard cost allocation methodology. The estimated capital contribution required from BGM is $57.8 million. Approximately $7 million will be funded by Western Power. This is to cover the incremental cost of building the line as a double circuit construction to meet future requirements of Western Power that are not related to the Boddington Gold Mine. The remainder will be recovered from Boddington Gold Mine via ongoing annual network access charges over 15 years.
(1) What capacity electrical transmission line currently services the Boddington Gold Mine? (2) What transmission upgrades will be needed to service the new expanded goldmining operations? (3) How much will the upgrade cost? (4) Who will pay for the transmission upgrade; and what cost-sharing arrangements are in place? Hon KIM CHANCE replied: I thank Hon Paul Llewellyn for some notice of this question. (1) The capacity of the existing 132-kilovolt transmission lines supplying Boddington are 145.6 megavolt ampere and 136.7MVA. (2) The scope of work required to supply BGM’s load includes the construction of a new 330/132kV Wells terminal approximately six kilometres east of the existing Boddington zone substation; a new 330kV transmission line approximately 90 kilometres from Shotts switchyard to Wells terminal, which will be done by reconstructing the existing Muja to Boddington 132kV transmission line; and the upgrade and modification of the Boddington substation to accommodate the connection of up to three customer installed and owned 132/33kV transformers. (3) The estimated cost of the upgrade, including contingency and escalation, is $90.5 million. (4) Western Power is allocating the cost of the line using its standard cost allocation methodology. The estimated capital contribution required from BGM is $57.8 million. Approximately $7 million will be funded by Western Power. This is to cover the incremental cost of building the line as a double circuit construction to meet future requirements of Western Power that are not related to the Boddington Gold Mine. The remainder will be recovered from Boddington Gold Mine via ongoing annual network access charges over 15 years.
(2) What transmission upgrades will be needed to service the new expanded goldmining operations? (3) How much will the upgrade cost? (4) Who will pay for the transmission upgrade; and what cost-sharing arrangements are in place? Hon KIM CHANCE replied: I thank Hon Paul Llewellyn for some notice of this question. (1) The capacity of the existing 132-kilovolt transmission lines supplying Boddington are 145.6 megavolt ampere and 136.7MVA. (2) The scope of work required to supply BGM’s load includes the construction of a new 330/132kV Wells terminal approximately six kilometres east of the existing Boddington zone substation; a new 330kV transmission line approximately 90 kilometres from Shotts switchyard to Wells terminal, which will be done by reconstructing the existing Muja to Boddington 132kV transmission line; and the upgrade and modification of the Boddington substation to accommodate the connection of up to three customer installed and owned 132/33kV transformers. (3) The estimated cost of the upgrade, including contingency and escalation, is $90.5 million. (4) Western Power is allocating the cost of the line using its standard cost allocation methodology. The estimated capital contribution required from BGM is $57.8 million. Approximately $7 million will be funded by Western Power. This is to cover the incremental cost of building the line as a double circuit construction to meet future requirements of Western Power that are not related to the Boddington Gold Mine. The remainder will be recovered from Boddington Gold Mine via ongoing annual network access charges over 15 years.
(3) How much will the upgrade cost? (4) Who will pay for the transmission upgrade; and what cost-sharing arrangements are in place? Hon KIM CHANCE replied: I thank Hon Paul Llewellyn for some notice of this question. (1) The capacity of the existing 132-kilovolt transmission lines supplying Boddington are 145.6 megavolt ampere and 136.7MVA. (2) The scope of work required to supply BGM’s load includes the construction of a new 330/132kV Wells terminal approximately six kilometres east of the existing Boddington zone substation; a new 330kV transmission line approximately 90 kilometres from Shotts switchyard to Wells terminal, which will be done by reconstructing the existing Muja to Boddington 132kV transmission line; and the upgrade and modification of the Boddington substation to accommodate the connection of up to three customer installed and owned 132/33kV transformers. (3) The estimated cost of the upgrade, including contingency and escalation, is $90.5 million. (4) Western Power is allocating the cost of the line using its standard cost allocation methodology. The estimated capital contribution required from BGM is $57.8 million. Approximately $7 million will be funded by Western Power. This is to cover the incremental cost of building the line as a double circuit construction to meet future requirements of Western Power that are not related to the Boddington Gold Mine. The remainder will be recovered from Boddington Gold Mine via ongoing annual network access charges over 15 years.
(4) Who will pay for the transmission upgrade; and what cost-sharing arrangements are in place? Hon KIM CHANCE replied: I thank Hon Paul Llewellyn for some notice of this question. (1) The capacity of the existing 132-kilovolt transmission lines supplying Boddington are 145.6 megavolt ampere and 136.7MVA. (2) The scope of work required to supply BGM’s load includes the construction of a new 330/132kV Wells terminal approximately six kilometres east of the existing Boddington zone substation; a new 330kV transmission line approximately 90 kilometres from Shotts switchyard to Wells terminal, which will be done by reconstructing the existing Muja to Boddington 132kV transmission line; and the upgrade and modification of the Boddington substation to accommodate the connection of up to three customer installed and owned 132/33kV transformers. (3) The estimated cost of the upgrade, including contingency and escalation, is $90.5 million. (4) Western Power is allocating the cost of the line using its standard cost allocation methodology. The estimated capital contribution required from BGM is $57.8 million. Approximately $7 million will be funded by Western Power. This is to cover the incremental cost of building the line as a double circuit construction to meet future requirements of Western Power that are not related to the Boddington Gold Mine. The remainder will be recovered from Boddington Gold Mine via ongoing annual network access charges over 15 years.
Hon KIM CHANCE replied: I thank Hon Paul Llewellyn for some notice of this question. (1) The capacity of the existing 132-kilovolt transmission lines supplying Boddington are 145.6 megavolt ampere and 136.7MVA. (2) The scope of work required to supply BGM’s load includes the construction of a new 330/132kV Wells terminal approximately six kilometres east of the existing Boddington zone substation; a new 330kV transmission line approximately 90 kilometres from Shotts switchyard to Wells terminal, which will be done by reconstructing the existing Muja to Boddington 132kV transmission line; and the upgrade and modification of the Boddington substation to accommodate the connection of up to three customer installed and owned 132/33kV transformers. (3) The estimated cost of the upgrade, including contingency and escalation, is $90.5 million. (4) Western Power is allocating the cost of the line using its standard cost allocation methodology. The estimated capital contribution required from BGM is $57.8 million. Approximately $7 million will be funded by Western Power. This is to cover the incremental cost of building the line as a double circuit construction to meet future requirements of Western Power that are not related to the Boddington Gold Mine. The remainder will be recovered from Boddington Gold Mine via ongoing annual network access charges over 15 years.
I thank Hon Paul Llewellyn for some notice of this question. (1) The capacity of the existing 132-kilovolt transmission lines supplying Boddington are 145.6 megavolt ampere and 136.7MVA. (2) The scope of work required to supply BGM’s load includes the construction of a new 330/132kV Wells terminal approximately six kilometres east of the existing Boddington zone substation; a new 330kV transmission line approximately 90 kilometres from Shotts switchyard to Wells terminal, which will be done by reconstructing the existing Muja to Boddington 132kV transmission line; and the upgrade and modification of the Boddington substation to accommodate the connection of up to three customer installed and owned 132/33kV transformers. (3) The estimated cost of the upgrade, including contingency and escalation, is $90.5 million. (4) Western Power is allocating the cost of the line using its standard cost allocation methodology. The estimated capital contribution required from BGM is $57.8 million. Approximately $7 million will be funded by Western Power. This is to cover the incremental cost of building the line as a double circuit construction to meet future requirements of Western Power that are not related to the Boddington Gold Mine. The remainder will be recovered from Boddington Gold Mine via ongoing annual network access charges over 15 years.
(1) The capacity of the existing 132-kilovolt transmission lines supplying Boddington are 145.6 megavolt ampere and 136.7MVA. (2) The scope of work required to supply BGM’s load includes the construction of a new 330/132kV Wells terminal approximately six kilometres east of the existing Boddington zone substation; a new 330kV transmission line approximately 90 kilometres from Shotts switchyard to Wells terminal, which will be done by reconstructing the existing Muja to Boddington 132kV transmission line; and the upgrade and modification of the Boddington substation to accommodate the connection of up to three customer installed and owned 132/33kV transformers. (3) The estimated cost of the upgrade, including contingency and escalation, is $90.5 million. (4) Western Power is allocating the cost of the line using its standard cost allocation methodology. The estimated capital contribution required from BGM is $57.8 million. Approximately $7 million will be funded by Western Power. This is to cover the incremental cost of building the line as a double circuit construction to meet future requirements of Western Power that are not related to the Boddington Gold Mine. The remainder will be recovered from Boddington Gold Mine via ongoing annual network access charges over 15 years.
(2) The scope of work required to supply BGM’s load includes the construction of a new 330/132kV Wells terminal approximately six kilometres east of the existing Boddington zone substation; a new 330kV transmission line approximately 90 kilometres from Shotts switchyard to Wells terminal, which will be done by reconstructing the existing Muja to Boddington 132kV transmission line; and the upgrade and modification of the Boddington substation to accommodate the connection of up to three customer installed and owned 132/33kV transformers. (3) The estimated cost of the upgrade, including contingency and escalation, is $90.5 million. (4) Western Power is allocating the cost of the line using its standard cost allocation methodology. The estimated capital contribution required from BGM is $57.8 million. Approximately $7 million will be funded by Western Power. This is to cover the incremental cost of building the line as a double circuit construction to meet future requirements of Western Power that are not related to the Boddington Gold Mine. The remainder will be recovered from Boddington Gold Mine via ongoing annual network access charges over 15 years.
(3) The estimated cost of the upgrade, including contingency and escalation, is $90.5 million. (4) Western Power is allocating the cost of the line using its standard cost allocation methodology. The estimated capital contribution required from BGM is $57.8 million. Approximately $7 million will be funded by Western Power. This is to cover the incremental cost of building the line as a double circuit construction to meet future requirements of Western Power that are not related to the Boddington Gold Mine. The remainder will be recovered from Boddington Gold Mine via ongoing annual network access charges over 15 years.
(4) Western Power is allocating the cost of the line using its standard cost allocation methodology. The estimated capital contribution required from BGM is $57.8 million. Approximately $7 million will be funded by Western Power. This is to cover the incremental cost of building the line as a double circuit construction to meet future requirements of Western Power that are not related to the Boddington Gold Mine. The remainder will be recovered from Boddington Gold Mine via ongoing annual network access charges over 15 years.
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