Federal Labor's fate is sealed in NSW regardless of how much campaign time the prime minister has given herself, Premier Barry O'Farrell says.

Prime Minister Julia Gillard announced on Wednesday the federal election would take place on September 14.

That's almost eight months away, but Mr O'Farrell believes the time gap won't help her or Labor retain government.

"Eight days, eight weeks, eight months - the result will still be the same," he told reporters in Sydney on Thursday.

"People across ... NSW desperately want to have an election campaign. They desperately want a change of federal government."

The premier said "no amount of cosying up" to the Greens or the NSW independents who gave Ms Gillard the numbers to form government would save federal Labor from impending defeat.

"Tony Abbott and the team will have to work hard, but I have no doubt that the same spirit is alive and well in NSW in the lead-up to the federal campaign that I found as I campaigned in the lead-up to the state election."

Mr O'Farrell said one of the main election issues for NSW was ensuring the state got a fair share of funding for infrastructure.

Mr Abbott's $1.5 billion promised contribution to the WestConnex motorway project was "a good start", he said.