ission ed ▁in ▁October ▁ 1 9 8 9 ) ▁ ▁G 3 ▁- ▁one ▁ 4 9 0 ▁net ▁M W ▁unit ▁( comm ission ed ▁in ▁March ▁ 2 0 0 5 ) ▁ ▁The ▁bo ilers ▁were ▁supplied ▁by ▁Com b ust ion ▁Engineering / H it achi ▁while ▁the ▁tur b ines / generator ▁are ▁supplied ▁by ▁G EC / H it achi . ▁The ▁plant ▁has ▁two ▁sm ok est acks , ▁one ▁ 1 3 8   m ▁( 4 5 3   ft ) ▁tall , ▁the ▁other ▁ 1 2 1   m ▁( 3 9 7   ft ) ▁tall . ▁ ▁Con version ▁to ▁natural ▁gas ▁On ▁ 1 8 ▁June ▁ 2 0 1 9 , ▁Capital ▁Power ▁announced ▁plans ▁to ▁expand ▁the ▁" du el - f uel " ▁capabilities ▁of ▁all ▁three ▁units ▁to ▁running ▁off ▁ 5 0 % ▁coal ▁and ▁ 5 0 % ▁natural ▁gas , ▁with ▁the ▁intent ▁to ▁convert ▁the ▁power ▁station ▁to ▁ 1 0 0 % ▁natural ▁gas ▁use ▁by ▁ 2 0 3 0 . ▁Unit ▁ 2 ▁will ▁be ▁converted ▁by ▁mid - 2 0 2 0 ▁and ▁unit ▁ 1 ▁by ▁spring ▁ 2 0 2 1 . ▁Unit ▁ 3 ▁will ▁be ▁converted ▁to ▁a ▁ 6 0 / 4 0 ▁ratio ▁of ▁coal ▁to ▁natural ▁gas ▁by ▁spring ▁ 2 0 2 1 ▁and ▁will ▁be ▁converted ▁to ▁a ▁ 5 0 / 5 0 ▁ratio ▁at ▁a