The Victorian Greens will use their upper house clout to push for the closure of the Hazelwood power station, claiming it is a risk to the community and no longer needed.

Greens MP Ellen Sandell said Hazelwood was one of the dirtiest coal plants in the world and should be closed.

Neither Labor nor the Liberals was giving the community any certainty about the timeline for mine rehabilitation and shutdown, meaning people could not plan for their future, she said.

The issue has the potential to dog the new Labor government, which needs seven extra votes in the upper house to pass any legislation not supported by the Coalition. That means securing the support of the five Greens and at least two other minor-party MPs.

The warning came as Labor announced it would bring forward new rules forcing mine operators to develop fire management plans.