Dutton’s nuclear plan would mean propping up coal for at least 12 more years – and we don’t know what it would cost

Opposition leader Peter Dutton has revealed the Coalition’s nuclear energy plan relies on many of Australia’s coal-fired power stations running for at least another 12 years – far beyond the time frame officials expect the ageing facilities to last.

The claim has set off a new round of speculation over the Coalition’s plans – the viability of which has already been widely questioned by energy analysts.

Dutton offered up limited detail in a speech on Monday. He also revealed the plan relies on ramping up Australia’s gas production.