▁called ▁El com , ▁was ▁a ▁stat ut ory ▁body ▁responsible ▁for ▁the ▁generation ▁of ▁electric ity ▁and ▁its ▁bulk ▁transmission ▁throughout ▁New ▁South ▁Wales , ▁Australia . ▁ ▁The ▁Commission ▁was ▁established ▁on ▁ 2 2 ▁May ▁ 1 9 5 0 ▁by ▁the ▁Electric ity ▁Commission ▁Act ▁ 1 9 5 0 ▁and ▁its ▁role ▁was ▁to ▁take ▁over ▁power ▁generation ▁responsibility ▁from ▁the ▁County ▁Coun c ils ▁( such ▁as ▁the ▁Sydney ▁County ▁Council ) ▁and ▁the ▁rail ways , ▁who ▁until ▁that ▁time ▁were ▁responsible ▁for ▁power ▁generation ▁and ▁distribution . ▁It ▁acquired ▁the ▁power ▁stations ▁and ▁main ▁transmission ▁lines ▁of ▁the ▁four ▁major ▁supply ▁authorities ▁( S ou thern ▁Electric ity ▁Supp ly , ▁Sydney ▁County ▁Council , ▁the ▁Department ▁of ▁Rail ways ▁and ▁the ▁Electric ▁Light ▁and ▁Power ▁Supp ly ▁Corporation ▁Ltd , ▁known ▁as ▁the ▁Bal main ▁Company ). ▁The ▁commission ▁was ▁responsible ▁for ▁the ▁central ised ▁co - ord ination ▁of ▁the ▁states ▁electric ity ▁generation ▁and ▁supply . ▁▁ ▁Between ▁ 1 9 5 0 ▁and ▁ 1 9 6 0 ▁the ▁commission ▁more ▁than ▁tre bled ▁power ▁capacity , ▁from ▁ 4 9 0 ▁meg aw att s ▁to ▁ 1 8 0 0 . ▁ ▁At ▁first , ▁this ▁involved ▁comple ting ▁the ▁exp ans ions ▁of ▁Bun ner ong , ▁White ▁Bay , ▁Bal main , ▁and ▁Py rm ont , ▁and ▁comple ting ▁new ▁stations ▁already ▁designed ▁by ▁the ▁Department ▁of ▁Rail ways : ▁T alla war ra ▁near ▁Port