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AltaGas Ltd.
Traded asTSXALA
IndustryPetroleum Industry
Power Generation
Gas Utilities
FoundedApril 1, 1994
HeadquartersCalgary, Alberta, Canada
Areas served
United States
Key people
  • David W. Cornhill
    Chairman of the Board
  • Randall Crawford
    Chief Executive Officer
ProductsElectricity generation, natural gas
RevenueIncreaseC$ 2.556 Billion (2017)[1]
DecreaseC$ 30 Million (2017)[1]
Total assetsDecreaseC$ 10.03 Billion (2017)[1]
Total equityIncreaseC$ 4.639 Billion (2017)[1]
Number of employees
SubsidiariesWGL Holdings

AltaGas is a North American energy infrastructure company based in Calgary, Alberta. The company operates in three business segments: gas, power generation, and utilities.


AltaGas began operations in Calgary in 1994 in the natural gas business, with the goal of building a western Canadian midstream business. The company later began its utility segment in 1998 in Alberta, and entered the power business in 2001.

In 2017 AltaGas agreed to purchase WGL Holdings, significantly expanding its presence in the United States.[2]



The Gas segment serves customers primarily in the Western Canadian Sedimentary Basin and transacts more than 2 Bcf/d of natural gas. The division serves many purposes including natural gas gathering and processing, natural gas liquids extraction and separation, transmission pipelines delivery for both gas and liquids, storage and marketing.


AltaGas generates and sells electricity through both natural gas power plants and renewable sources, with a total capacity of 1,708 megawatts. The company also owns 20MW of battery storage in Pomona, California.


AltaGas operates regulated utilities that store and deliver natural gas to end‑users across North America. The utility businesses serve approximately 1.8 million customers.

Operational power projects[3][edit]

Name Fuel type Gross installed capacity (MW) AltaGas's participation Client Expiration
Bear Mountain Wind Park Wind 102 100 BC Hydro 2034
Blythe Energy Center Natural Gas 507 100 Southern California Edison 2020
Brush II Natural Gas 70 100 2019
Busch Ranch Wind Farm Wind 29 50 Black Hills Energy 2037
Craven County Wood Energy Biomass 48 50 2017
Forrest Kerr Hydroelectric Facility Hydro 195 65 BC Hydro 2074
Grayling Generating Station Biomass 37 30 Consumers Energy 2027
Hanford Peaker Plant Natural Gas 97 100 Pacific Gas and Electric Company 2022
Henrietta Peaker Plant Natural Gas 96 100 Pacific Gas and Electric Company 2022
McLymont Creek Hydroelectric Facility Hydro 66 65 BC Hydro 2075
Pomona Energy Facility Natural Gas 45 100
Pomona Energy Storage Battery Storage 20 100 Southern California Edison 2027
Ripon Energy Facility Natural Gas 50 100 2018
Tracy Combined Cycle Power Plant Natural Gas 330 100 Pacific Gas and Electric Company 2022
Volcano Creek Hydroelectric Facility Hydro 16 62.3 BC Hydro 2074


  1. ^ a b c d "AltaGas | News Releases". Retrieved 2018-02-19.
  2. ^ "AltaGas to buy WGL Holdings for $4.5-billion in major U.S. push". Retrieved 2018-04-27.
  3. ^ "Featured Operations".