The Turnbull government's controversial $2.5 billion Emissions Reduction Fund could deliver another two more auctions before it runs out of money, after the sixth auction awarded $104 million in contracts to deliver 7.95 million tonnes of carbon abatement.

With speculation the fund could be abolished following the review of the federal government's climate policies, the Clean Energy Regulator chairman David Parker said there was scope for the scheme to keep running into next year.