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Endeavour Energy Annual Performance Report - Parliament of New ...

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02<br />

Our<br />

<strong>Performance</strong><br />

StRAtegic Objectives<br />

STRATEGIC OBJECTIVE 3 – IMPROVE CUSTOMER VALUE<br />

2010–11 Objective 2010–11 Target 2010–11 Result<br />

• Set a course for a<br />

sub-70-minute SAIDI.<br />

• Implement rapid response<br />

teams for our network.<br />

• Limit unplanned supply interruptions<br />

for our average customer to less than<br />

87 minutes.<br />

• By April 2011.<br />

• Unplanned supply interruptions for<br />

our average customer was 72 minutes.<br />

• Completed: half <strong>of</strong> the rapid response<br />

crews have been established and<br />

are working well, with the remaining<br />

positions expected to be filled in the<br />

near future.<br />

Reliability performance<br />

– a record result<br />

Reliability <strong>of</strong> supply is an important<br />

measure by which we demonstrate<br />

our network performance and ensure<br />

we can deliver value for customers.<br />

We measure the reliability <strong>of</strong> our<br />

network with the System Average<br />

Interruption Duration Index (SAIDI).<br />

This is a measure <strong>of</strong> the number <strong>of</strong><br />

unplanned minutes that customers,<br />

on average, are without electricity<br />

each year. This excludes the impact<br />

<strong>of</strong> significant storms.<br />

We achieved our bestever<br />

performance in<br />

network reliability and<br />

are one <strong>of</strong> the most<br />

reliable distributors<br />

in Australia with an<br />

unplanned SAIDI <strong>of</strong><br />

72 minutes.<br />

Our SAIDI target for the year<br />

ending June 2011 was 87 minutes,<br />

but our actual result for the year<br />

– excluding significant storm<br />

interruptions permitted under our<br />

licence conditions – was 72 minutes.<br />

Our ongoing reliability improvement<br />

programs combined with mild<br />

weather patterns throughout the<br />

year contributed to this positive<br />

result for customers.<br />

Events that had a significant<br />

impact on the overall reliability<br />

result include:<br />

• 16 interruptions to zone and<br />

sub-transmission substations<br />

contributed to approximately<br />

1.3 minutes <strong>of</strong> SAIDI.<br />

• 29 sub-transmission electricity<br />

line interruptions contributed to<br />

2.5 minutes <strong>of</strong> SAIDI.<br />

• 734 distribution electricity line<br />

interruptions contributed to<br />

50 minutes <strong>of</strong> SAIDI.<br />

<strong>Endeavour</strong> <strong>Energy</strong> is well-positioned<br />

to establish a sub-70-minute SAIDI<br />

as a normal part <strong>of</strong> doing business.<br />

To support this effort, our reliability<br />

improvement projects will focus<br />

particularly on distribution electricity<br />

lines that contribute more than<br />

0.3 minutes to <strong>Endeavour</strong> <strong>Energy</strong>’s<br />

overall SAIDI performance.<br />

Implementing rapid<br />

response teams for<br />

our network<br />

<strong>Endeavour</strong> <strong>Energy</strong> has established<br />

rostered rapid response teams to<br />

attend network incidents that occur<br />

outside normal Monday to Friday<br />

working hours. Historically these<br />

incidents required employees to<br />

be called out, at overtime rates,<br />

to restore power or ‘make safe’<br />

the network.<br />

Our rapid response crews provide<br />

valuable support in our efforts<br />

to respond to customer outages.<br />

This has helped us to:<br />

<strong>Performance</strong> indicator: Supply reliability – normalised unplanned<br />

SAIDI (minutes)<br />

94<br />

98<br />

89<br />

79<br />

72<br />

• Manage employee fatigue.<br />

• Reduce the need to disrupt<br />

planned construction and<br />

maintenance activities.<br />

• Ensure our employees can be<br />

on site as soon as possible.<br />

• Reduce our cost to serve<br />

for customers.<br />

2006–07<br />

2007–08<br />

2008–09<br />

2009–10<br />

2010–11<br />

Good<br />

12

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