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

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Network Strategy<br />

Network business objective<br />

Provide long term customer service by developing and operating a sustainable and reliable network<br />

Network business target outcomes and strategies<br />

Optimise network capacity<br />

through effective demand<br />

management and investment<br />

for security and growth<br />

Meet customers’ reliability needs<br />

through better management <strong>of</strong><br />

planned and unplanned outages<br />

Provide customers with value<br />

for money over the long term<br />

by improving the effectiveness<br />

and efficiency for capital and<br />

operating programs<br />

• As land use continues to shift<br />

from rural and semi-rural to<br />

urban and light commercial,<br />

customers expect improved<br />

reliability performance.<br />

• Peak temperatures across the<br />

network are typically higher and<br />

stay high for longer than those<br />

<strong>of</strong> central Sydney and other<br />

coastal areas.<br />

• Eighty-one percent <strong>of</strong> households<br />

in Greater Western Sydney now<br />

have air conditioning units,<br />

compared with 51% in the Illawarra<br />

and 50% in the Blue Mountains.<br />

This has resulted in a ‘peakier’ load<br />

pattern in hot weather requiring<br />

more assets to service demand<br />

that only exists for a short time<br />

each year.<br />

• The uptake <strong>of</strong> other appliances<br />

such as televisions, in-home<br />

computers and entertainment<br />

systems. This trend is also<br />

changing consumption patterns,<br />

resulting in heightened customer<br />

expectations and awareness about<br />

reliability and security <strong>of</strong> supply.<br />

• Many network assets were built<br />

in the infrastructure boom <strong>of</strong><br />

the 1960s and 1970s and are<br />

approaching the end <strong>of</strong> their<br />

useful lives.<br />

Major projects approved by the Board during 2010–11<br />

In response to growing demand and the need to renew ageing assets, 12 major projects for a total <strong>of</strong> $206.9 million<br />

were approved by the Board this year. Construction will commence in coming years.<br />

Description<br />

Estimated<br />

budget ($M)<br />

Chipping Norton Zone Substation establishment 23.1<br />

Abbotsbury Zone Substation establishment 35.1<br />

Huntingwood Zone Substation establishment 27.5<br />

Augmentation <strong>of</strong> 33kV electricity lines 443 (from Cattai Zone Substation to Windsor Zone<br />

Substation) and 458/1 (from Hawkesbury Transmission Substation to Cattai Zone Substation) 20.7<br />

Establishment <strong>of</strong> a new 66kV electricity line from Nepean Transmission Substation<br />

to Narellan Zone Substation 9.7<br />

Bulli Zone Substation redevelopment 18.5<br />

Port Kembla Zone Substation redevelopment 20.0<br />

West Liverpool Transmission Substation transformer renewal 5.4<br />

Northmead Zone Substation redevelopment 22.1<br />

Ringwood Zone Substation redevelopment 6.0<br />

33kV Circuit Breakers renewal program 8.0<br />

Ringwood 33kV electricity line 7906 renewal 10.8<br />

Total 206.9<br />

<strong>Endeavour</strong> <strong>Energy</strong> <strong>Annual</strong> <strong>Performance</strong> <strong>Report</strong> 2010–11<br />

19

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