SA Treasurer Tom Koutsantonis has failed to see the funny side of remarks made by Prime Minister Malcolm Turnbull, who claimed Adelaide could not host the AFL grand final unless it was during daylight because of the state's power problems.

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Mr Turnbull made the comments during an interview with Adelaide radio station FIVEaa yesterday morning, almost exactly a year after the 2016 statewide blackout.

"It'd have to be a daytime match in Adelaide, wouldn't it?" he joked.

"Jay [Weatherill] couldn't keep, he hasn't got any electricity.

"You could have a percentage of the fans on bicycles keeping the lights on."

But Mr Koutsantonis was having none of it, defending the state's reputation and drawing a parallel between Mr Turnbull and US President Donald Trump.

"It's foolish, stupid and childish," Mr Koutsantonis told reporters in Jamestown, after Tesla boss Elon Musk had just announced reaching the halfway point in his giant battery project.

"He is the Prime Minister of the entire country, not just the Prime Minister of the north shore of Sydney.

"He has a responsibility for the entire country and mocking 1.7 million citizens isn't the job of the Prime Minister.

"If he wants that job, he should work for the Trump administration."

The grand final is always held in Melbourne, despite gripes by other states, who argue it is unfair — especially when their teams have finished higher on the ladder than their Victorian opponents (as is the case today).

Momentum has also been building in recent years to have the match moved from its traditional afternoon spot to a night match.