Australia's east coast is bracing for possible power blackouts, with the market operator directing power suppliers in two states to ramp up energy supply.
Outages at coal-fired power plants, at the same time that household heating is in high demand, is putting pressure on the electricity system.
Queensland is at risk of a significant power disruption between 5.30pm to 8pm on Monday, with NSW also on high alert from 7pm on Tuesday due to a predicted supply shortfall.