The Hunter Valley Operations (HVO) mines are among the largest coal expansion proposals in Australia, representing potentially over a billion tonnes of total greenhouse gas emissions.

The Australia Institute made a submission to the NSW planning process opposing the latest proposals.

As with previous proposals to extend HVO North and South, emissions costs are underestimated and project benefits overstated.

On the path to net zero emissions by 20250, coal mine expansions should not be approved, let alone projects the size of HVO.