Australia news live: we can be renewables superpower, Chalmers says; NSW Liberals to choose new leader

Treasurer to kick off clean energy summit with call for coordinated action across the economy; Mark Speakman favourite to succeed Dominic Perrottet. Follow live

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Nearly one month after former New South Wales premier Dominic Perrottet resigned as Liberal leader another MP is set to grasp the nettle and become the state opposition leader.

Former attorney general, barrister and moderate Mark Speakman is understood to have the numbers to take the role, and is expected to leave a party-room meeting today as leader of the NSW Liberals.