TransAlta Corporation is a Canadian independent power producer and energy trading company headquartered in Calgary, Alberta. The company operates a diverse portfolio of power generation facilities, including natural gas, hydro, wind, solar, and battery storage assets across Canada, the United States, and Australia. TransAlta primarily generates revenue by supplying wholesale electricity to municipalities, industrial customers, and utility companies. The company's business is organized into segments including Hydro, Wind & Solar, Gas, Energy Transition, and Energy Marketing. Historically reliant on coal-fired generation, TransAlta has been actively transitioning its fleet to natural gas and renewable energy sources to reduce its carbon footprint. The company also engages in the trading of electricity, natural gas, and environmental products to optimize its asset portfolio and manage market risks.