When you flick on a light or turn on the TV from somewhere in the South West region, chances are you are using electricity produced by coal from the mining town of Collie.
All of the State's power supply is generated from Collie coal.
Coal is mined in the Collie basin and transformed into electricity, which is fed into the State's power grid.
The South West Interconnected System (SWIS), an electricity network consisting of about 88,000 kilometres of powerlines, is the biggest interconnected network in Western Australia. It extends from Kalbarri in the north, east to Kalgoorlie, and south to Albany.
Local coal-fired power stations include the Bluewaters Power Station, Collie Power Station and Muja Power Station.
The Kemerton Power Station, which comprises two open cycle gas turbine, operates as a peaking plant.
The Dampier to Bunbury Natural Gas Pipeline (DBNGP) transports gas from the North West Shelf to customers in the South West.