Tech entrepreneur Elon Musk has offered to fix South Australian energy supply problems within just 100 days.

The Tesla boss is so confident in his battery-driven scheme that he’s even backed the claim up with an offer to cover all expenses, should he fail to complete the system within his specified timeframe.

Musk’s offer was prompted by a question by Australian tech billionaire Atlassian co-founder and co-CEO Mike Cannon-Brookes via Twitter.

“Tesla will get the system installed and working 100 days from contract signature or it is free. That serious enough for you?” Musk wrote yesterday.

Musk’s statement follows an earlier claim by Tesla energy product vice-president Lyndon Rive that the company would “commit” to the installation of 100-300 megawatt hours of batteries to support the blackout-stricken state, the Australian Financial Review reports .

“We don't have 300MWh sitting there ready to go but I'll make sure there are," he said.

South Australian premier Jay Weatherill has confirmed he’s “looking forward” to further consultations with Musk and Tesla, The Huffington Post reports .

Tesla’s Powerwall batteries store solar energy so that it’s available in times when renewable energy cannot otherwise be directly sourced, which ensures continual availability.

South Australia is among several states affected by recent heatwaves, which have placed strain upon the state’s renewable energy dependent power networks, triggering blackouts.

READ MORE: South Australia hit by another major blackout

In August last year, nearly 1.7 million South Australian residents were left in the dark after a storm brought down 22 transmission towers.

READ MORE: Power restored to most homes after violent storm tears through