Harding Street Gas Power Plant, Indianapolis, Indiana | US Power Generation

Harding Street is a gas-fired power plant located in Indianapolis, Indiana, United States. With a capacity of 1064.7 MW, it is a large-scale facility within the US power generation sector. The plant is owned and operated by Indianapolis Power & Light Co, a subsidiary of AES Corporation, and serves the electricity needs of the Indianapolis metropolitan area. The plant operates on natural gas, a fuel that produces lower CO2 emissions compared to coal but still contributes to greenhouse gas emissions. As a gas power plant, it likely uses combined-cycle or simple-cycle technology, typical for modern gas plants in the US. The facility is subject to US EPA regulations under the Clean Air Act, including New Source Performance Standards and the Acid Rain Program, which set limits on SO2, NOx, and other pollutants. Harding Street plays a key role in the regional power grid, providing reliable baseload or peaking capacity depending on demand. Its location in an urban area means it supports local economic activity and residential electricity supply. The plant's operational status and capacity underscore its importance in Indiana's energy mix, which includes coal, gas, and renewables.

The plant's gas fuel type results in lower SOx and NOx emissions per MWh compared to coal, but CO2 emissions remain a concern. Located in Indianapolis, a populated urban area, the plant's emissions may affect local air quality. Its capacity of over 1000 MW places it in the large-scale category, with potential for significant environmental impact. The plant likely employs modern emission control technologies to comply with EPA standards.