▁ 8 0 0 ▁M W ▁( 4 ▁x ▁ 2 0 0 MW ) ▁B ▁Station ▁was ▁completed ▁in ▁ 1 9 7 6 . ▁ ▁Pl anned ▁shut down ▁In ▁December ▁ 2 0 1 4 ▁A GL ▁announced ▁that ▁it ▁intended ▁moth ball ing ▁the ▁four ▁older ▁units ▁of ▁the ▁A ▁Station ▁in def initely , ▁having ▁taken ▁them ▁out ▁of ▁service ▁between ▁July ▁and ▁September ▁ 2 0 1 4 . ▁This ▁decision ▁was ▁primarily ▁driven ▁by ▁increasing ▁levels ▁of ▁wind ▁and ▁solar ▁generation ▁in ▁the ▁South ▁Australian ▁region ▁of ▁the ▁National ▁Electric ity ▁Market ▁disp la cing ▁foss il ▁fuel ▁generation , ▁particularly ▁higher ▁cost ▁gas - f ired ▁generation . ▁A GL ▁review ed ▁this ▁decision ▁and ▁de ferred ▁the ▁planned ▁moth ball ing ▁in ▁June ▁ 2 0 1 6 , ▁following ▁the ▁closure ▁of ▁Al inta ' s ▁Northern ▁and ▁Play ford ▁B ▁coal - f ired ▁power ▁stations ▁at ▁Port ▁August a ▁ ▁However , ▁due ▁to ▁the ▁state - wide ▁power ▁out age ▁in ▁September ▁ 2 0 1 6 , ▁the ▁system ▁operator ▁A E MO ▁demanded ▁that ▁the ▁Tor r ens ▁Island ▁power ▁station ▁to ▁be ▁brought ▁back ▁online ▁to ▁prevent ▁another ▁state wide ▁power ▁out age . ▁ ▁A GL ▁announced ▁on ▁ 7 ▁June ▁ 2 0 1 7 ▁that ▁it ▁intended ▁to ▁perman ently ▁moth ball ▁two ▁of ▁the ▁tur b ines ▁in ▁the ▁ 5 0 - year - old ▁Tor r ens ▁A ▁power ▁station ▁from