A WA parliamentary question addresses power supply interruptions in Laverton, their causes, and government actions to ensure reliability. The response indicates performance is exceeding targets and outlines ongoing maintenance.

AnsweredQoN 440Legislative Council
Asked
22 June 2011
Portfolio
Energy

QuestionView source ↗

LAVERTON — ELECTRICITY SUPPLY
(1) How many supply interruptions arising from power-quality problems or blackouts have occurred in the town of Laverton in 2010 and 2011 to date? (2) What was the cause of these interruptions? (3) What is the government doing to ensure Laverton has a reliable, quality power supply? (4) Which contractors are used to perform works and maintenance on the electricity network in Laverton? (5) Are all of these contractors suitably licensed and accredited; and, for each work order to maintain or improve the electricity network in Laverton, have there been any instances where appropriate approvals and notices have not been issued? Hon PETER COLLIER

AnswerView source ↗

I thank the honourable member for some notice of the question. (1) Customers in Laverton received an average of 1.71 interruptions to their power supply during 2009–10. During 2010–11 to date, the average is 1.70 interruptions, which is well below the targeted average of 6.6 interruptions. (2) In 2010–11 to date, 50.66 per cent of interruptions were caused by adverse weather conditions in December. The remaining 49.44 per cent incorporates items such as planned outages for network upgrades and disconnections caused by faulty equipment in either customers’ assets or Horizon Power’s assets. (3) Horizon Power continues to undertake its asset management work in the Laverton area even though the network surpasses regulatory quality and reliability targets. This includes replacing aged wood poles with metal poles, and replacing all customer service leads in Laverton. (4) Horizon Power currently engages Powerlines Plus Pty Ltd to work on the Laverton electricity network. (5) Horizon Power has a contract authorisation system to ensure contractors working on its electricity network are accredited. Horizon Power is not aware of any instances where appropriate approvals and notices have not been issued with regard to work undertaken on Horizon Power’s electricity network.
(2) What was the cause of these interruptions? (3) What is the government doing to ensure Laverton has a reliable, quality power supply? (4) Which contractors are used to perform works and maintenance on the electricity network in Laverton? (5) Are all of these contractors suitably licensed and accredited; and, for each work order to maintain or improve the electricity network in Laverton, have there been any instances where appropriate approvals and notices have not been issued? Hon PETER COLLIER replied: I thank the honourable member for some notice of the question. (1) Customers in Laverton received an average of 1.71 interruptions to their power supply during 2009–10. During 2010–11 to date, the average is 1.70 interruptions, which is well below the targeted average of 6.6 interruptions. (2) In 2010–11 to date, 50.66 per cent of interruptions were caused by adverse weather conditions in December. The remaining 49.44 per cent incorporates items such as planned outages for network upgrades and disconnections caused by faulty equipment in either customers’ assets or Horizon Power’s assets. (3) Horizon Power continues to undertake its asset management work in the Laverton area even though the network surpasses regulatory quality and reliability targets. This includes replacing aged wood poles with metal poles, and replacing all customer service leads in Laverton. (4) Horizon Power currently engages Powerlines Plus Pty Ltd to work on the Laverton electricity network. (5) Horizon Power has a contract authorisation system to ensure contractors working on its electricity network are accredited. Horizon Power is not aware of any instances where appropriate approvals and notices have not been issued with regard to work undertaken on Horizon Power’s electricity network.
(3) What is the government doing to ensure Laverton has a reliable, quality power supply? (4) Which contractors are used to perform works and maintenance on the electricity network in Laverton? (5) Are all of these contractors suitably licensed and accredited; and, for each work order to maintain or improve the electricity network in Laverton, have there been any instances where appropriate approvals and notices have not been issued? Hon PETER COLLIER replied: I thank the honourable member for some notice of the question. (1) Customers in Laverton received an average of 1.71 interruptions to their power supply during 2009–10. During 2010–11 to date, the average is 1.70 interruptions, which is well below the targeted average of 6.6 interruptions. (2) In 2010–11 to date, 50.66 per cent of interruptions were caused by adverse weather conditions in December. The remaining 49.44 per cent incorporates items such as planned outages for network upgrades and disconnections caused by faulty equipment in either customers’ assets or Horizon Power’s assets. (3) Horizon Power continues to undertake its asset management work in the Laverton area even though the network surpasses regulatory quality and reliability targets. This includes replacing aged wood poles with metal poles, and replacing all customer service leads in Laverton. (4) Horizon Power currently engages Powerlines Plus Pty Ltd to work on the Laverton electricity network. (5) Horizon Power has a contract authorisation system to ensure contractors working on its electricity network are accredited. Horizon Power is not aware of any instances where appropriate approvals and notices have not been issued with regard to work undertaken on Horizon Power’s electricity network.
(4) Which contractors are used to perform works and maintenance on the electricity network in Laverton? (5) Are all of these contractors suitably licensed and accredited; and, for each work order to maintain or improve the electricity network in Laverton, have there been any instances where appropriate approvals and notices have not been issued? Hon PETER COLLIER replied: I thank the honourable member for some notice of the question. (1) Customers in Laverton received an average of 1.71 interruptions to their power supply during 2009–10. During 2010–11 to date, the average is 1.70 interruptions, which is well below the targeted average of 6.6 interruptions. (2) In 2010–11 to date, 50.66 per cent of interruptions were caused by adverse weather conditions in December. The remaining 49.44 per cent incorporates items such as planned outages for network upgrades and disconnections caused by faulty equipment in either customers’ assets or Horizon Power’s assets. (3) Horizon Power continues to undertake its asset management work in the Laverton area even though the network surpasses regulatory quality and reliability targets. This includes replacing aged wood poles with metal poles, and replacing all customer service leads in Laverton. (4) Horizon Power currently engages Powerlines Plus Pty Ltd to work on the Laverton electricity network. (5) Horizon Power has a contract authorisation system to ensure contractors working on its electricity network are accredited. Horizon Power is not aware of any instances where appropriate approvals and notices have not been issued with regard to work undertaken on Horizon Power’s electricity network.
(5) Are all of these contractors suitably licensed and accredited; and, for each work order to maintain or improve the electricity network in Laverton, have there been any instances where appropriate approvals and notices have not been issued? Hon PETER COLLIER replied: I thank the honourable member for some notice of the question. (1) Customers in Laverton received an average of 1.71 interruptions to their power supply during 2009–10. During 2010–11 to date, the average is 1.70 interruptions, which is well below the targeted average of 6.6 interruptions. (2) In 2010–11 to date, 50.66 per cent of interruptions were caused by adverse weather conditions in December. The remaining 49.44 per cent incorporates items such as planned outages for network upgrades and disconnections caused by faulty equipment in either customers’ assets or Horizon Power’s assets. (3) Horizon Power continues to undertake its asset management work in the Laverton area even though the network surpasses regulatory quality and reliability targets. This includes replacing aged wood poles with metal poles, and replacing all customer service leads in Laverton. (4) Horizon Power currently engages Powerlines Plus Pty Ltd to work on the Laverton electricity network. (5) Horizon Power has a contract authorisation system to ensure contractors working on its electricity network are accredited. Horizon Power is not aware of any instances where appropriate approvals and notices have not been issued with regard to work undertaken on Horizon Power’s electricity network.
Hon PETER COLLIER replied: I thank the honourable member for some notice of the question. (1) Customers in Laverton received an average of 1.71 interruptions to their power supply during 2009–10. During 2010–11 to date, the average is 1.70 interruptions, which is well below the targeted average of 6.6 interruptions. (2) In 2010–11 to date, 50.66 per cent of interruptions were caused by adverse weather conditions in December. The remaining 49.44 per cent incorporates items such as planned outages for network upgrades and disconnections caused by faulty equipment in either customers’ assets or Horizon Power’s assets. (3) Horizon Power continues to undertake its asset management work in the Laverton area even though the network surpasses regulatory quality and reliability targets. This includes replacing aged wood poles with metal poles, and replacing all customer service leads in Laverton. (4) Horizon Power currently engages Powerlines Plus Pty Ltd to work on the Laverton electricity network. (5) Horizon Power has a contract authorisation system to ensure contractors working on its electricity network are accredited. Horizon Power is not aware of any instances where appropriate approvals and notices have not been issued with regard to work undertaken on Horizon Power’s electricity network.
I thank the honourable member for some notice of the question. (1) Customers in Laverton received an average of 1.71 interruptions to their power supply during 2009–10. During 2010–11 to date, the average is 1.70 interruptions, which is well below the targeted average of 6.6 interruptions. (2) In 2010–11 to date, 50.66 per cent of interruptions were caused by adverse weather conditions in December. The remaining 49.44 per cent incorporates items such as planned outages for network upgrades and disconnections caused by faulty equipment in either customers’ assets or Horizon Power’s assets. (3) Horizon Power continues to undertake its asset management work in the Laverton area even though the network surpasses regulatory quality and reliability targets. This includes replacing aged wood poles with metal poles, and replacing all customer service leads in Laverton. (4) Horizon Power currently engages Powerlines Plus Pty Ltd to work on the Laverton electricity network. (5) Horizon Power has a contract authorisation system to ensure contractors working on its electricity network are accredited. Horizon Power is not aware of any instances where appropriate approvals and notices have not been issued with regard to work undertaken on Horizon Power’s electricity network.
(1) Customers in Laverton received an average of 1.71 interruptions to their power supply during 2009–10. During 2010–11 to date, the average is 1.70 interruptions, which is well below the targeted average of 6.6 interruptions. (2) In 2010–11 to date, 50.66 per cent of interruptions were caused by adverse weather conditions in December. The remaining 49.44 per cent incorporates items such as planned outages for network upgrades and disconnections caused by faulty equipment in either customers’ assets or Horizon Power’s assets. (3) Horizon Power continues to undertake its asset management work in the Laverton area even though the network surpasses regulatory quality and reliability targets. This includes replacing aged wood poles with metal poles, and replacing all customer service leads in Laverton. (4) Horizon Power currently engages Powerlines Plus Pty Ltd to work on the Laverton electricity network. (5) Horizon Power has a contract authorisation system to ensure contractors working on its electricity network are accredited. Horizon Power is not aware of any instances where appropriate approvals and notices have not been issued with regard to work undertaken on Horizon Power’s electricity network.
(2) In 2010–11 to date, 50.66 per cent of interruptions were caused by adverse weather conditions in December. The remaining 49.44 per cent incorporates items such as planned outages for network upgrades and disconnections caused by faulty equipment in either customers’ assets or Horizon Power’s assets. (3) Horizon Power continues to undertake its asset management work in the Laverton area even though the network surpasses regulatory quality and reliability targets. This includes replacing aged wood poles with metal poles, and replacing all customer service leads in Laverton. (4) Horizon Power currently engages Powerlines Plus Pty Ltd to work on the Laverton electricity network. (5) Horizon Power has a contract authorisation system to ensure contractors working on its electricity network are accredited. Horizon Power is not aware of any instances where appropriate approvals and notices have not been issued with regard to work undertaken on Horizon Power’s electricity network.
(3) Horizon Power continues to undertake its asset management work in the Laverton area even though the network surpasses regulatory quality and reliability targets. This includes replacing aged wood poles with metal poles, and replacing all customer service leads in Laverton. (4) Horizon Power currently engages Powerlines Plus Pty Ltd to work on the Laverton electricity network. (5) Horizon Power has a contract authorisation system to ensure contractors working on its electricity network are accredited. Horizon Power is not aware of any instances where appropriate approvals and notices have not been issued with regard to work undertaken on Horizon Power’s electricity network.
(4) Horizon Power currently engages Powerlines Plus Pty Ltd to work on the Laverton electricity network. (5) Horizon Power has a contract authorisation system to ensure contractors working on its electricity network are accredited. Horizon Power is not aware of any instances where appropriate approvals and notices have not been issued with regard to work undertaken on Horizon Power’s electricity network.
(5) Horizon Power has a contract authorisation system to ensure contractors working on its electricity network are accredited. Horizon Power is not aware of any instances where appropriate approvals and notices have not been issued with regard to work undertaken on Horizon Power’s electricity network.

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