Overview
Independence Steam Electric Station is a 1,800 MW coal-fired power plant in Arkansas, USA, owned by Entergy Arkansas LLC. It operates under US EPA regulations including the Clean Air Act.
Independence Steam Electric Station is a coal-fired power plant located in Arkansas, United States, with a capacity of 1,800 MW. Owned by Entergy Arkansas LLC, the facility is operational and plays a significant role in the regional power grid. As a coal plant, it is among the larger-scale power generation facilities in the state. The plant operates under the regulatory framework of the US Environmental Protection Agency, including the Clean Air Act, National Ambient Air Quality Standards, and the Acid Rain Program. Coal-fired power plants of this size typically utilize subcritical or supercritical boiler technology, and are subject to emissions limits for sulfur dioxide, nitrogen oxides, and particulate matter. It likely incorporates pollution control equipment to meet current standards. Independence Steam Electric Station serves as a major baseload power source for the region, contributing to grid stability and meeting the electricity demands of residential, commercial, and industrial customers. Its environmental footprint includes CO2 emissions typical of coal combustion, as well as other regulated pollutants. The plant's location in Arkansas places it within a region with diverse energy mix, including natural gas and nuclear power.
Environmental context
The plant's coal fuel source results in significant CO2 emissions per MWh compared to natural gas or renewables. Proximity to populated areas may raise local air quality concerns, particularly for SOx, NOx, and particulate matter. The facility's capacity of 1,800 MW indicates a large-scale operation, which can have substantial regional environmental impact. Regulatory compliance with US EPA programs helps mitigate some of these effects through emissions reduction requirements.
Frequently asked questions
Independence Steam Electric Station is located in Arkansas, United States, near the coordinates 35.6784° N, -91.4088° W.
The plant has a capacity of 1,800 megawatts (MW), making it a large-scale coal-fired power station.
The plant is owned by Entergy Arkansas LLC, a subsidiary of Entergy Corporation.
Coal power plants in the US must comply with the Clean Air Act, including NAAQS, the Acid Rain Program, and CSAPR, which regulate emissions of SO2, NOx, and other pollutants.
Coal power plants of this scale often use subcritical or supercritical boiler technology, with pollution controls such as scrubbers and electrostatic precipitators to meet emissions standards.