Hannibal - Oakwood Substation: 16 MW Diesel Power Plant in Hannibal, Missouri

Hannibal - Oakwood Substation is a diesel power plant located in Hannibal, Missouri, United States. With a capacity of 16 MW, it is a small-scale facility within the US power generation sector, primarily serving as a peaking or emergency backup plant. The plant is owned and operated by the Hannibal Board of Public Works, a municipal utility serving the local community. The plant uses diesel fuel, which is typical for peaking plants due to its quick start-up capabilities. Diesel plants often utilize reciprocating engines. In the US, such facilities are subject to the Clean Air Act (CAA) regulations, including National Ambient Air Quality Standards (NAAQS) and potentially the Acid Rain Program, depending on emissions levels. The plant's small capacity likely places it in a lower regulatory tier for emissions monitoring. As a municipal utility asset, the Hannibal - Oakwood Substation plays a role in ensuring grid reliability for the Hannibal area. Its operation supports local energy needs during periods of high demand or when other generation sources are offline. The plant's environmental footprint is relatively small due to its limited capacity and intermittent operation, though diesel combustion produces CO2, SOx, and NOx emissions.

The plant operates in Hannibal, Missouri, a small city along the Mississippi River. Its diesel fuel use results in CO2, SOx, and NOx emissions, but as a peaking plant, its runtime is limited, reducing overall environmental impact. The facility's proximity to the river and residential areas necessitates compliance with local air quality standards. The small capacity (16 MW) and intermittent operation moderate its ecological footprint compared to larger baseload plants.