‘Urgent’ investment needed to keep power supply secure: AEMO

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The risk of supply shortages leading to unreliable power has faded over the next two summers but will revive in 2025 unless more investment is made, AEMO warned.

that its 316MW Tallawarra B gas power plant being built in NSW’s Illawarra region also remains on schedule to start up ahead of the 2023-24 summer, despite the disruption caused by the collapse of Clough, one of the contractors building the plant.

But of a total pipeline of potential projects adding up to 209GW of capacity of mostly large-scale solar, wind and storage, only about 10GW is currently committed. In NSW, the risk of breaching interim reliability standards has risen since August because of the delay to the Kurri Kurri project, but AEMO said reliability remained within interim standards in both the next two summers after Liddell closes. After Origin’s Eraring plant closes in August, reliability breaches the lower interim threshold but does not breach the higher reliability standard until 2027-28 thanks to the 700MW Waratah battery.

Dr McConnell also questioned the finding about the lack of impact of the Snowy 2.0 delay, saying that basing the reason on the transmission timing meant that that finding was due to the modelling approach rather than anything else.

 

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