On April 30 , 2002 , AltaLink assumed control of Alberta 's largest transmission system previously owned by TransAlta .
AltaLink , L.P. is an Alberta - based utility company that provides electricity transmission services to most of Alberta .
On April 30 , 2002 , utility company assumed control of Alberta 's largest transmission system previously owned by TransAlta .
AltaLink , L.P. is an Alberta - based utility company that provides electricity transmission services to most of Alberta .