M Street Jet Diesel Power Plant | Boston, Massachusetts Power Generation

M Street Jet is a diesel power plant located in Boston, Massachusetts, United States. With a capacity of 69 MW, it operates as a medium-scale facility within the diesel power generation sector, primarily serving as a backup or peaking plant for the Massachusetts Bay Transportation Authority (MBTA). The plant uses oil as its primary fuel and is classified as a diesel power plant. In the United States, such facilities are subject to federal regulations under the Clean Air Act, including National Ambient Air Quality Standards (NAAQS) and the Acid Rain Program. Diesel plants typically have higher emissions of NOx and particulate matter compared to natural gas plants, but their intermittent operation can mitigate overall environmental impact. As a critical infrastructure asset for public transit, M Street Jet ensures reliable power for MBTA operations during grid outages or peak demand. Its location in an urban area underscores the importance of balancing operational reliability with local air quality considerations. The plant's role in supporting public transportation contributes to reduced congestion and emissions from personal vehicles.

Located in an urban area of Boston, the plant's diesel combustion emits NOx, SOx, and particulate matter, which can affect local air quality. Its operation as a backup plant means emissions are intermittent but may coincide with high-demand periods. Older diesel engines may have higher emission rates. Proximity to populated areas increases potential exposure to pollutants.