The nation's big mining companies have praised Opposition Leader Sussan Ley's new focus on energy affordability but say they're still aiming to reach net zero carbon emissions by 2050.

After a damaging internal brawl, the coalition has promised to abandon the climate goal if it wins the next election, potentially pouring taxpayer money into new coal and gas projects.

Opposition Leader Sussan Ley says she cares about tackling climate change but the government's main priority should be reducing the cost of electricity and gas.

"We believe in affordable energy at the centre of our economy," she told reporters in western Sydney on Monday.

Most state Liberal branches remain committed to net zero by 2050 despite a push among some rank and file members to ditch the target.

Pressed on why she

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