CANBERRA, March 14 (Reuters) - Australia's nuclear-powered submarine programme with the United States and Britain will cost up to A$368 billion ($245 billion) over the next three decades, a defence official said on Tuesday, the country's biggest single defence project in history.
Albanese said the programme would start with a A$6 billion ($4 billion) investment over the next four years to expand a major submarine base and the country's submarine shipyards, as well as train skilled workers.
The total cost of the submarine program is estimated to be A$268 billion to A$368 billion by 2055, or roughly 0.15% of gross domestic product per year, a defence official told Reuters.
U.S. nuclear-powered submarines will visit Western Australia more frequently this year, with British submarines making port visits starting in 2026.
From 2027 the Perth base, HMAS Stirling, will be host to a rotational presence of British and U.S. nuclear-powered submarines to build Australia's experience.