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2012 Half Year Results Media Presentation - Origin Energy

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Base<br />

Load/<br />

Interm.<br />

Externally<br />

A diverse generation portfolio and high reliability levels<br />

delivered a competitive cost of energy<br />

Contracted Wind Peaking<br />

Eraring<br />

Darling Downs<br />

Ladbroke Grove<br />

Quarantine<br />

Roma<br />

Uranquinty<br />

Shoalhaven<br />

Mt Stuart<br />

Cullerin Range<br />

Worsley<br />

Osborne<br />

Bulwer Island<br />

0% 20% 40% 60% 80% 100%<br />

Equivalent Reliability Factor (ERF) Capacity Factor<br />

• Eraring Power Station ERF was 86%<br />

due to fire in transformer of Unit 2<br />

• First of two Mortlake units available<br />

for dispatch in January <strong>2012</strong><br />

- Completion of second unit<br />

expected in second half of<br />

FY<strong>2012</strong><br />

• <strong>Origin</strong> has a portfolio of gas fired<br />

and wind developments providing<br />

future optionality<br />

Option to run generation harder<br />

23 |

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