Ooooh, I wonder if this bloke is one of the regulars from Bolta's?
Police have have arrested seven of them.
Campaigner Jason Collins says 13 activists are inside the power station.
They want the Federal Government to abolish coal-fired power stations before the next election.
Mr Collins says seven people have been arrested for trespassing, but they understand the risks.
"Most of our activists are very committed to the issue of climate change and they understand that arrests is one of the risks that you face in undertaking peaceful protests," he said.
He said the station could be switched off if every home in Queensland changed to solar hot water.
"She (Anna Bligh) should instead be making Queensland the true sunshine state by turning off coal-fired power stations like this one and replacing it with clean energy generated by renewables such as solar."
The protesters were prepared for a cold night, with temperatures expected to drop to two degrees celsius.