Divisions over climate policy have deepened with the Liberal Government in New South Wales leading a state revolt over greenhouse gas emissions.

State Energy Minister Don Harwin was left fuming after his federal counterpart Angus Taylor blocked his bid at yesterday's COAG meeting to discuss a national roadmap to reaching zero carbon output by 2050.

Don Harwin says the Federal Government was on the right track when Malcolm Turnbull was still Prime Minister and energy policy included an obligation to reduce emissions.

Harwin accused the Morrison Government of being out of touch on climate policy and warned its refusal to adopt a zero emissions reduction plan will keep power prices high.