South Australian Greens Senator Sarah Hanson-Young has reaffirmed her support for leader Christine Milne at the same time urging the party to reconnect with voters.

After her return to the federal parliament was confirmed on Tuesday, Senator Hanson-Young clarified comments she reportedly made after last week's party room meeting that backed Senator Milne as leader and Adam Bandt as her deputy.

A Fairfax Media report said Senator Hanson-Young commented that the party had just returned a leader who would have the Greens "marching to a slow death".

But she told reporters on Tuesday that her comments related to the party's results at the recent federal election and the need to reconnect with voters.

"We've got to refocus our energy, refocus our work as a party to reconnecting with voters for the next three years," she said.

"That's what those comments were in relation to."

Senator Hanson-Young said she endorsed last week's party room vote.

"I endorse the leadership team and I want to get on with reconnecting with voters," she said.

"Christine Milne was re-elected unopposed to lead our party. I support that."

But Senator Hanson-Young said that after an election result where the party had lost ground, it needed to find out what voters wanted to hear from the Greens.

"We can't be complacent about that," she said.

With the Senate result in SA finalised on Tuesday the Australian Electoral Commission said voters had elected two Liberal Senators, Corey Bernardi and Simon Birmingham, Labor's Penny Wong, Senator Hanson-Young, popular independent Nick Xenophon and Family First's Bob Day.

The big loser from the poll was sitting Labor Senator Don Farrell, who will lose his spot when the new Senate comes into effect in July.

Senator Hanson-Young said the new Senate, which would include candidates from the Australian Motoring Enthusiast Party and a number from the Palmer United Party, would be an interesting mix of people.

"But that's what the Australian people have delivered," she said.