Northern

Now mothballed.

Quoted from en.wikipedia.org/wiki/Playford_B_Power_Station on 22/7/17. (It's Pi day!)
Playford B Power Station was located at Port Paterson in the Australian state of South Australia about 5.5 kilometres (3.4 mi) south of the city centre of Port Augusta.[1] It was coal powered with four 60 MW steam turbines that generate a total of 240 MW of electricity.[2] Playford B received coal by rail from the Leigh Creek Coal Mine, 280 km to the north and draws cooling water from Spencer Gulf, returning it to the sea at an elevated temperature. Commissioned in 1963, it was co-located with the larger, newer Northern Power Station. Playford B was mothballed in 2012 and its permanent closure was announced by operator Alinta Energy in October 2015. Prior to being mothballed it primarily operated in the summer, when electricity demand peaks.[2]