For the second time in three days, fire crews were called out to Yallourn Power Station yesterday afternoon.
Seven Latrobe Valley fire brigade units responded to a coal bunker fire at the major energy provider.
It took just over half an hour to get the fire under control and five hours clean up.
Investigators are attending to determine the cause today. This comes after another fire at the power station on Sunday which took almost 20 hours to extinguish.