H Wilson Sundt Generating Station: Natural Gas Power Plant in Tucson, Arizona

H Wilson Sundt Generating Station is a natural gas power plant located in Tucson, Arizona, United States. With a capacity of 434.9 MW, it is a medium-to-large scale facility within the US gas power sector. The plant is owned and operated by Tucson Electric Power Co, a major utility serving southern Arizona. The plant operates under the regulatory framework of the US Environmental Protection Agency, including the Clean Air Act and its associated programs such as the Acid Rain Program and the Cross-State Air Pollution Rule. As a gas-fired facility, it benefits from lower emissions of sulfur dioxide and particulate matter compared to coal plants, but still contributes to nitrogen oxide and carbon dioxide emissions. The plant's technology is typical for a gas plant of its era, likely using combined-cycle or simple-cycle gas turbines. H Wilson Sundt Generating Station plays a key role in meeting the electricity demand of the Tucson metropolitan area. Its location in the arid Southwest requires efficient water management for cooling processes. The plant supports grid reliability and integrates with renewable energy sources as part of Tucson Electric Power's diverse generation portfolio.

The plant's gas fuel type results in lower SOx and particulate emissions compared to coal, but NOx and CO2 emissions remain significant. Located near Tucson, a populated area, the facility must comply with local air quality standards. Its capacity of 434.9 MW places it in a moderate scale band, with environmental impact managed through modern emission controls and regulatory compliance under the Clean Air Act.