Epcor been on MIKE for years now. I have heard the odd transmission on the old UHF system lately by the security staff.
Talk of eventually going on the provincial system when it arrives, not confirmed.
If you were sitting in the dark lately, try monitoring Fortis Alberta radio system. They look after power in the rural districts. On the weekend TransAlta and others were rolling black-outs due to high loads on the grid east of Edmonton, dam refineries!!!