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Welcome to the ENMAX group of companies

Headquartered in Calgary, Alberta, with operations across Alberta and Maine, ENMAX is a leading provider of electricity services, products and solutions. We power the potential of people, businesses and communities by safely and responsibly providing electricity and energy services in a way that matters to them now and in the future. Between our three business units, we operate across the energy value chain - as a regulated wires company, a competitive power generator and an energy retailer.


Regulated Business




ENMAX Power is our regulated Alberta-based wires business through which we own, operate and maintain the transmission and distribution system in and around Calgary. This system serves approximately 510,000 customers across 1,089 square kilometres in and around Calgary. ENMAX invests over $300 million annually in system upgrades and maintenance to ensure we can reliably meet our customers energy needs now and into the future. ENMAX Power is subject to the oversight of the Alberta Utilities Commission.

Separate from its regulated services, ENMAX Power also maintains Calgary’s Light Rail Transit system and services Calgary’s streetlight infrastructure.

ENMAX Power service area map


Generation Wholesale / Mass Market & Commercial




ENMAX Energy is our Alberta-based competitive generation and retail business, providing electricity, natural gas and customer care services to approximately 700,000 customers throughout the province. Our Customer Care Centre, located right here in Calgary, serves our customers and works on behalf of The City of Calgary under a service contract to bill for the City’s residential water, sanitary and storm sewer, solid waste disposal and recycling services.

ENMAX Energy maintains a 1,512 MW generation portfolio, made up of 86 per cent natural gas and 14 per cent wind.

ENMAX Energy service area map


Regulated Business




Versant Power is a regulated electric transmission and distribution utility which owns, operates and maintains an electrical system in northern and eastern Maine.

As the second-largest utility in the state, Versant Power provides electricity and customer care services to more than 162,000 residential, commercial and industrial Maine customers over 10,400 square miles.

Each year, Versant Power invests more than $40 million to maintain and improve Maine’s electricity distribution system. Versant Power is fully regulated by the Maine Utilities Commission and the Federal Energy Regulatory Commission.

To learn more about Versant Power visit www.VersantPower.com.

Versant Power service area map

Customers are free to purchase natural gas services or electricity services from a retailer of their choice. For a list of retailers, visit ucahelps.alberta.ca or call 310-4822 (toll free in Alberta).