A new report commissioned by the Electrical Trades Union (ETU) shows privatisation in the electricity sector has been an expensive and dismal failure.

The report, prepared by Queensland economist Professor John Quiggin, is scathing in his report of energy sector privatisation, concluding it has failed to deliver the benefits promised to Australian consumers.

Professor Quiggin studied 20 years of electricity privatisation reform, including the outcomes of power sales in Victoria and South Australia.

He found there are no benefits to consumers privatisation and has instead resulted in large financial losses to the public.

Professor Quiggin's research shows electricity price rises were the highest in states with privatised power networks.

The report also found consumer complaints to the energy ombudsman in privatised states leapt from 500 to more 50,000 a year.

He says reforms have been a dismal failure and public ownership of power infrastructure is the best option.

Queensland Government questions report's credibility

But acting treasurer Scott Emerson says the State Government will not sell off Queensland power assets before the next election.

"We have made it very clear that Ergon, Energex and Powerlink are not for sale," he said.

"We will not be selling any Government-owned businesses without a mandate."

Mr Emerson says the report lacks credibility.

"Professor Quiggin is hardly an objective commentator in this area," he said.

"He hasn't provided us a copy of his report to comment yet.

"But the reality is there is a reason why the ETU went to Professor Quiggin - his views are well known on this.

"They commissioned him to do a report knowing what the answer would be already."

Premier Campbell Newman says the union-commissioned report has been a waste of money.

Mr Newman says the ETU is involved in a dishonest campaign against the Government.

"As an academic exercise it's nice and interesting - look forward to having a look at it," he said.

"But why has the ETU spent their members' money on this, because we've already said we're not selling Ergon, Energex or Powerlink?"

Wes Hayes from the ETU was unimpressed by the Premier's comment.

"I'm happy to find out, but who cares? Is that his biggest issue - how much it cost?" he said.

Opposition MP Curtis Pitt says he wants to know how much the State Government is spending on privatisation scoping studies.

"Queenslanders have the right to know exactly what is happening and how they are spending money," he said.

Energy Minister Mark McArdle also says the Government-owned businesses Ergon, Energex and Powerlink are not for sale.

Mr McArdle says asset sales are not on the agenda before the next election.