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Emissions standards have changed a lot since the Shawnee Fossil Plant entered service during President Eisenhower’s second term in office, but the Tennessee Valley Authority has done its part to help the

In a bid to tamp down pollution, India’s government in December 2015 notified the country’s coal generators they would need to meet—for the first time—new emissions limits for nitrogen oxides (NOx), sulfur dioxide (SO2), and mercury, as well as tightened limits for particulate matter (PM) and water consumption. The gazetted notification gave new plants until […]

Interstate Power and Light (IPL) will be forced to spend $620 million to retire 10 coal-fired units and retire, refuel, or install pollution controls at several others in Iowa under a settlement reached with the federal government.  The Alliant Energy subsidiary has long anticipated the settlement announced on July 15 by the Environmental Protection Agency […]

Several Arizona and New Mexico–based utilities will be required to install pollution controls at the coal-fired Four Corners Power Plant to curb sulfur dioxide (SO2) and nitrogen oxide (NOx) under a settlement reached with the Environmental Protection Agency and the Justice Department. The settlement involves the Arizona Public Service Co. (APS), the operator and primary […]

In order to comply with the Clean Air Act and subsequent regulations covering emissions, coal-fired utilities have installed multiple pollution control devices. Understanding key operating aspects of this equipment can help you avoid costly maintenance activities and forced shutdowns. Since the passage of the Clean Air Act in 1970, the regulatory environment for control of […]

Selective catalytic reduction (SCR) systems installed in steam generators for NOx reduction are ordinarily designed for full boiler load conditions, when SCR inlet temperatures normally exceed unit-specific

The Kansas City Power & Light (KCP&L) La Cygne Generating Station provides 1,532 MW of peak power from its site south of Kansas City. La Cygne Unit 1 is an 815-MW Babcock & Wilcox cyclone boiler