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For more than 100 years, E​NMAX has provided safe and reliable
elec​​tricity in Calgary​​

Learn more about transmission and distribution projects happening around Calgary
Transmission and distribution Lines

​​Substations keep reliable electricity available for customers

The purpose of a substation is to ‘step down’ high voltage electricity from the transmission system to lower voltage electricity so it can be easily supplied to homes and businesses through our distribution lines.

ENMAX Power Corporation operates 40 high voltage electrical substations and three lower voltage distribution substations, located in​ all parts of Calgary and our surrounding service area. 

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The Downtown Calgary Network System is one of the largest in North America, covering eight square kilometers.​


There are more than 982 transformers that are part of the network. These are located in vaults either beneath city streets and sidewalks, covered by grates, or inside of buildings. There are 421 vaults in Calgary.​

Calgary Downtown Core Network

The history of Calgary's downtown network system dates back to 1910

All customers are free to purchase natural gas services from the default supply provider or from a retailer of their choice and to purchase electricity services from the regulated rate provider or from a retailer of their choice. The delivery of natural gas and electricity to you is not affected by your choice. If you change who you purchase natural gas services or electricity services from, you will continue receiving natural gas and electricity from the distribution company in your service area. For a current list of retailers you may choose from, visit www.ucahelps.alberta.ca or call 310-4822 (toll free in Alberta).


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