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AGL Energy’s Liddell coal-fired power station in New South Wales closed on Friday, Australia’s first big power plant closure since Hazelwood’s demise in Victoria in 2017.

Liddell had been operating at less than half its original 2,000-megawatt capacity for some time. Still, its exit sharpens the focus on the challenges facing not only NSW but also the rest of the national electricity market (Nem).

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