Shaw Communications has acquired Calgary’s largest fiber optic cable network in a $225 million deal with ENMAX Corp. in a bid to strengthen its ability to serve large corporate customers who need more bandwidth than Shaw is now positioned to offer.

ENMAX sells its Envision fiber service to large corporate clients in and around downtown Calgary and to those businesses that need dedicated connectivity across multiple offices. The acquisition will further enhance Shaw’s dominance in Calgary. Shaw remains western Canada’s largest cable operator with an emphasis on serving Alberta and British Columbia.

Shaw’s business plan, revamped last year, is much closer to American cable operators than Rogers Communications — the dominant cable company in eastern Canada. Shaw abandoned its mobile ambitions and will stay out of the cellular business. In January, Shaw announced its intentions to sell its AWS wireless spectrum holding to Rogers.

Shaw has also ended efforts to expand eastward after announcing it would sell Mountain Cablevision, Ltd., which serves parts of Hamilton and the Niagara Region of Ontario, to Rogers.

In 2013, Shaw subscribers can expect to see a broadening of the company’s growing Wi-Fi network — available free of charge to its broadband customers, a major upgrade to its DreamGallery set-top box software interface, and the completion of plans to switch its cable television lineup to an all-digital format by the end of this year.