Ottumwa Coal Power Plant | Iowa Power Generation Facility

Ottumwa is a coal-fired power plant located in Iowa, United States, with a generating capacity of 725.9 megawatts. The facility is owned and operated by Interstate Power and Light Co and is currently in operational status. As a coal power plant, it plays a significant role in the energy mix of the region, providing baseload power to the grid. The plant operates under the regulatory framework of the United States Environmental Protection Agency (EPA), including the Clean Air Act (CAA) and its associated programs such as the Acid Rain Program and the Cross-State Air Pollution Rule (CSAPR). These regulations impose emission limits for sulfur dioxide (SO2), nitrogen oxides (NOx), and other pollutants. Ottumwa's environmental significance stems from its coal fuel source, which results in higher CO2 emissions per megawatt-hour compared to natural gas or renewable sources. Its location in Iowa, a state with a mix of agricultural and industrial activity, means the plant's emissions may affect local air quality. The facility's capacity places it in the medium-to-large scale for coal plants in the U.S., and its continued operation reflects the ongoing role of coal in the nation's energy portfolio.

The Ottumwa coal plant's environmental context is shaped by its fuel type and capacity. Coal combustion releases CO2, SO2, NOx, and particulate matter, contributing to greenhouse gas emissions and local air quality concerns. The plant's location in Iowa, a state with significant agricultural land, means emissions may impact nearby communities and ecosystems. Regulatory compliance with EPA standards helps mitigate some environmental effects, but the inherent footprint of coal generation remains a key consideration.