Victoria's Yallourn power station has been operating for 47 years.
Energy Australia will close the Yallourn power station in Victoria's Latrobe Valley in mid-2028, four years ahead of schedule, and build a giant power-generating battery instead.
The brown coal-fired plant produces about a fifth of the state's electricity and is Victoria's oldest power station.
It employs 500 permanent workers plus hundreds of contractors and was previously scheduled to close in 2032.
