ORIGIN ENERGY LIMITED — Capital/Financing Update 2016

Jun 16, 2016

DUET Company Limited (DUECo) ABN 93 163 100 061 DUET Investment Holdings Limited (DIHL) ABN 22 120 456 573 DUET Finance Limited (DFL) ABN 15 108 014 062 AFS Licence No. 269287

Level 15, 55 Hunter Street Telephone +61 2 8224 2750 SYDNEY NSW 2000 Facsimile +61 2 8224 2799 GPO Box 5282 Internet www.duet.net.au SYDNEY NSW 2001 AUSTRALIA

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17 June 2016

ASX RELEASE

EDL ACQUIRES CULLERIN RANGE WIND FARM

DUET Group (DUET) is pleased to announce that Energy Developments Pty Limited (EDL) has executed a share sale agreement with Origin Energy Limited (Origin) to acquire the 30MW Cullerin Range wind farm (Cullerin) for $72m (excluding transaction costs). Financial close is expected in the first quarter of FY17.

Transaction Summary

• Located near Gunning in NSW (see attached map)

• 15 x 2MW Senvion turbines

• Commenced operations in July 2009; site leases in place until 2038

• Historical capacity factor of 38%, one of the highest for an Australian wind farm

• Service and availability agreement in place with Senvion

• Long term offtake agreement with Origin

• Sale subject to a number of customary conditions precedent

• Acquisition to be funded from EDL’s corporate debt facility

• Acquisition does not change DUET’s FY17 distribution guidance and FY18 growth target

DUET’s CEO, David Bartholomew commented that “This acquisition leverages EDL’s experience and capability in managing a distributed generation portfolio which is diversified across a range of fuel sources.”

EDL’s Managing Director Greg Pritchard said “The acquisition of Cullerin is an excellent strategic fit for EDL and complements our existing portfolio which includes 160MW of distributed generation located in NSW and ACT.”

“We see further potential for EDL to grow in the mid-scale, grid connected renewable sector. This growth will leverage our existing scale and capabilities in managing our clean and renewable generation in our portfolio totalling over 900MW globally”, Mr Pritchard said.

For further enquiries, please contact:

Investor Enquiries:Nick KuysGM Operations and Investor RelationsTel:+61 2 8224 2727Email:n.kuys@duet.net.au	Media Enquiries:Ben WilsonPublic Affairs ManagerTel:+61 407 966 083Email:bwilson@gracosway.com.au

DUET Company Limited DUET Investment Holdings Limited DUET Finance Limited

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Map: Location of Cullerin and EDL’s other generation sites in NSW

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----- Start of picture text ----- Tahmoor;Teralba; Glennies CreekBelrose; Grange AveJacks Gully;Eastern CreekMugga LaneBelconnen----- End of picture text -----

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Existing EDL operations: Land Fill Gas and Waste Coal Mine Gas generation

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Cullerin Range Wind Farm