The Federal Government says it will not go ahead with a replacement scheme for its dumped Green Loans program.

The Government scrapped the scheme earlier this year after a report exposed extensive mismanagement of the program.

In its initial design, the scheme allowed home owners to get a free energy efficiency audit and offered assistance to those wanting to make improvements to their home.

The Government has announced a $30 million assistance package for energy efficiency assessors who will be disadvantaged by the program's closure.

Climate Change Minister Greg Combet says he has decided ongoing problems with the management of the scheme and the replacement Green Start program have led to the closure.

"We have been having a very close look at whether these risks could be satisfactorily mitigated and the programs delivered appropriately," he said.

"We have come to the view and it's also the clear advice of the Department that the answer is that they cannot."

Greens Senator Christine Milne says the scheme had flaws from the start, but she is happy the Government is helping energy efficiency assessors who are left without work.

But Opposition spokesman Greg Hunt says the Government needs to take responsibility for the problems.

"It's time for the Prime Minister to apologise for the absolute chaos that she has caused," he said.