COAL POWER Direct
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O&M
Point Level Capacitance Switch for Fly Ash Hopper Measurement
If you’re the person tasked with controlling the level of fly ash in collection hoppers, you know how difficult the application can be. What at first looks like a simple measurement quickly proves to be much more demanding in actual execution. The first problem is the environment inside the collection hoppers, which is extremely challenging […]
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Coal
Advanced Coal-Fired Combined Heat and Power Plant Begins Operation in U.S.
Great River Energy’s (GRE’s) Spiritwood Station began commercial operation on Nov. 1. The plant—located about 10 miles east of Jamestown, N.D.—is a combined-heat-and-power plant that can generate up to 99 MW of electricity, depending on the amount of steam being supplied to its partner facilities. The station is expected to be about 60% efficient while […]
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O&M
Gaining Control with Electraulic Actuators
Plant engineers at Eskom’s Majuba Power Station in South Africa have been continuously looking for ways to improve efficiency and reliability. The six-unit, 4,000-MW, supercritical coal-fired plant was experiencing an efficiency decrease of 5% to 7%, which plant engineers determined was caused by poor performance of the actuators on their condensate level control valves (CLCVs). […]
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COAL POWER Direct—Oct. 17, 2014
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Coal
Coal Ash Continues to Challenge Duke Energy
On Sept. 23, Duke Energy told the Public Service Commission of South Carolina that it intends to excavate a portion of coal ash at the W.S. Lee Steam Station located in Anderson County. The company has been dealing with a coal ash release from its Dan River Steam Station that occurred on Feb. 2, and […]
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O&M
Two Units at Coal Power Plant Back Online Following Spring Fire
With Units 6 and 7 back in operation, Colorado Springs Utilities (CSU) has restored 80% of the generation capacity at its Martin Drake Power Plant located in downtown Colorado Springs. The plant was taken offline after sustaining significant damage during a May 5 fire. Most of the damage occurred in the area surrounding Unit 5, […]
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Legal & Regulatory
Seven Coal-Fired Units to Be Retired as Result of Settlement
Consumers Energy—Michigan’s largest utility—reached an agreement with the U.S. Environmental Protection Agency (EPA) and the U.S. Department of Justice that will result in more than $2 billion being spent on upgrades at its power plants and the closure of seven coal-fired units, according to the company. The settlement resolves claims that Consumers Energy violated the […]
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COAL POWER Direct—Sept. 10, 2014
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COAL POWER Direct—Aug. 13, 2014
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Coal
EPA Sued By 12 States and a Coal Mining Company
A group of 12 states and a coal mining company have filed separate lawsuits in the U.S. Court of Appeals for the District of Columbia in an effort to stop the Environmental Protection Agency (EPA) from regulating CO2 emissions from existing coal-fired power plants. The states—Alabama, Indiana, Kansas, Kentucky, Louisiana, Nebraska, Ohio, Oklahoma, South Carolina, […]