In Queensland, Transmission company Powerlink’s Chief Executive Paul Simshauser says people should “be a bit thoughtful” and reduce their energy use on Tuesday night.
It said outages could be expected between 6pm and 7.30pm.
‘We will be in for a bumpy period’
As a result, some generator companies pulled back from the market forcing the AEMO, which manages electricity and gas systems and markets across Australia, to intervene and require generators to supply power even if it was not profitable.
Outages at coal-fired power plants, at the same time as household heating is in high demand, are putting pressure on the electricity system.
The energy minister said everything was on the table in terms of reform in the sector.
“You need what’s called dispatchable power. That’s power that you don’t (generally) need … but when it’s really cold, that’s when you need it.”