There's clearly no love lost between South Australian Premier Jay Weatherill and Federal Energy Minister Josh Frydenberg.
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The simmering feud between the pair harks back to an infamous press conference in Adelaide last year which the premier gatecrashed to unload on the federal government over energy policy.
"It's a disgrace the way in which your government has treated our state," Mr Weatherill said of the commonwealth's criticism of SA's expanding renewable energy sector.
Fast forward to Sunday and the flames were fanned at Labor's election campaign for SA's March 17 poll, where an image from the press conference was emblazoned on promotional coffee mugs offered for sale to the Labor faithful.
Back in Adelaide on Wednesday, Mr Frydenberg got his chance to hit back, saying the whole saga reflected poorly on Mr Weatherill.
"It is pretty desperate for a premier to turn up uninvited to a press conference and to gatecrash," he said.
"You would not have seen that behaviour from Labor or Liberal premiers of this state passed."
Mr Frydenberg also had a crack at SA's latest renewable energy initiatives, a plan to increase the state's renewable energy target to 75 per cent and to set a 25 per cent target for renewable energy storage by 2025.
Mr Frydenberg insisted Mr Weatherill had mismanaged the state's energy transition.
"Premier Weatherill has put forward an idea, a thought bubble," the minister said.
"He is a problem gambler doubling down to chase his losses."
Australian Associated Press