<P> Ontario Hydro ceased operations on March 31 , 1999 . Its assets and functions were transferred by provincial statute to two commercial successor corporations , Ontario Power Generation Inc. and Ontario Hydro Services Company Inc. , as well as to two not - for - profit agencies , the Independent Electricity Market Operator and the Electrical Safety Authority . </P>
<P> Ontario Hydro ceased operations on March 31 , 1999 . Its assets and functions were transferred by provincial statute to two commercial successor corporations , Ontario Power Generation Inc. and Ontario Hydro Services Company Inc. , as well as to two not - for - profit agencies , the Independent Electricity Market Operator and the Electrical Safety Authority . </P>
when did the separation of ontario hydro occur
when did the separation of ontario hydro occur
March 31 , 1999
March 31 , 1999