South Australia has abandoned its nuclear dump plans.

SA Premier Jay Weatherill says any plans would need bi-partisan support, and the Opposition is not on board.

The State Government was keen on the idea after a royal commission last year suggested a nuclear waste industry could generate billions of dollars.

Two-thirds of a citizens' jury rejected the Nuclear Fuel Cycle Royal Commission's findings and said South Australia should not store high-level nuclear waste “under any circumstances”.

Mr Weatherill was questioned about the dump at a public forum this week, the Premier said it had been abandoned.

Mr Weatherill told reporters that he had no choice but to dump the proposal.

“This is a matter that requires inter-generational support over decades and decades, if you don't have both major parties behind this, it's never going to go anywhere,” Mr Weatherill said.