Coal

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 […]

On Nov. 5, The Babcock & Wilcox Co. (B&W) announced that its board of directors has unanimously approved a plan for the tax-free spin-off of the company’s power generation business to B&W’s shareholders, in the process forming two independently traded companies. In its third-quarter earnings call the following day, company executives emphasized that the two […]

South African utility Eskom was forced to implement rolling blackouts for the second time this year after a coal silo supplying a 4.1-GW coal-fired power plant collapsed on Nov. 1. A crack was observed in one of the three 1994-built coal storage silos serving the 13-year-old Majuba Power Station in Mpumalanga Province at about 12:30 […]

The Republicans seized full control of Congress on Tuesday, bagging the six seats necessary to snatch the Senate away from the Democrats—and leaving several Obama administration energy-related initiatives in a fog.  With most election results in, Republicans have control of at least 52 Senate seats, snaring key seats in Iowa, North Carolina, Colorado, Arkansas, South […]

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 […]

The decision to eliminate coal-fired power plants and the implementation of an aggressive feed-in tariff program puts Ontario’s electricity system in the spotlight. Download a pdf of this sponsored report, written by Global Business Reports: GBR_ONTARIO_PWR_1114_sm

Improving efficiency at existing coal-fired power plants anywhere in the world is a path of no regret: A more efficient power plant uses less coal, has lower emissions, and experiences lower variable costs. Great River Energy’s Coal Creek Station has demonstrated that by recycling low-grade waste heat with DryFining, it can reduce emissions, including CO2, […]

Too-frequent sootblowing can damage boiler components and place a big load on plant efficiency, but not enough of it can be just as big a problem. A sootblowing optimization system can help you find the “sweet spot.” With the increasing demands placed on today’s coal-fired power plants worldwide, operators are continuously looking for the best […]

China has been battling—and losing—a “war” on air pollution for years. Stepping up its efforts, the country recently issued new policy measures, tougher even than those in the U.S. and European Union, that could have big implications for its coal power sector.  Reports that heavy smog has blanketed large swathes of China’s provinces have become […]

Even without regulatory considerations, there are good reasons for virtually every coal-fired power plant to improve its heat rate. The Electric Power Research Institute (EPRI) has looked at dozens of methods for improving heat rates and evaluated their applicability and costs. Part 1 of this two-part series explains the basics of heat rate improvements and […]

The first full-scale commercial post-combustion carbon capture and sequestration (CCS) project at an operating coal-fired power plant is now online in Estevan, Saskatchewan, roughly 10 miles north of the U.S. border. The heart of the C$1.4 billion project at Boundary Dam Power Station is the rebuilt 110-MW Unit 3, originally commissioned in 1970. The project, […]

Plant Washington, a planned $2.1 billion, single-unit, 850-MW supercritical coal plant that a consortium of generators has been trying to build near Sandersville in east-central Georgia, was given an 18-month air permit extension by the Georgia Environmental Protection Division (EPD) on Oct. 15. The Plant Washington project has been in development since 2006. The company […]

Cost estimates for the Kemper County Integrated Coal Gasification Combined Cycle project (IGCC) have surged another $330 million since August, mostly owing to delays that have shifted the plant’s in-service date to the first half of 2016.  Plant owner Mississippi Power’s latest monthly report submitted to the Mississippi Public Service Commission shows that the project’s total […]

The U.S. Environmental Protection Agency (EPA) has released a notice of data availability (NODA)—making additional information and ideas available for public comment—and it has also proposed carbon goals for areas in Indian Country and U.S. territories. Janet McCabe, acting assistant administrator for the EPA’s Office of Air and Radiation, explained the two actions related to […]

Xcel Energy formally notified state regulators and the Midcontinent Independent System Operator that it plans to close the two remaining coal-fired units at its Black Dog Generating Station in Burnsville, Minn., by April 2015. The Black Dog plant has 232 MW of coal-fired generation in its Units 3 and 4, which have been operating since […]

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). […]

San Antonio’s CPS Energy on Monday announced a new agreement to buy power from Summit Power’s  proposed integrated combined cycle coal gasification (IGCC) plant that will include carbon capture, utilization, and storage. The municipally owned utility will buy 200 MW of power from the the Texas Clean Energy Project (TCEP), which is about half the […]

American Electric Power’s (AEP’s) Ohio unit has asked the state’s Public Utilities Commission for permission to essentially charge customers for costs to operate nine unregulated coal-fired units, a move the company says will address market volatility and ensure the economic viability of Ohio’s generation.  AEP Ohio on Oct. 3 proposed an “expanded” power purchase agreement […]

The first full-scale commercial post-combustion carbon capture and sequestration (CCS) project at an operating coal-fired power plant is now online in Estevan, Saskatchewan, roughly 10 miles north of the U.S. border. The heart of the $1.4 billion project at Boundary Dam Power Station is the rebuilt 110-MW Unit 3, originally commissioned in 1970. The project, […]

Before the polar vortex earlier this year, several severe cold weather events had presented comparable power generation operational challenges. POWER ranks those events here in terms of loss of generation capacity. Common themes observed in both severe and lesser cold weather incidents involve constraints on natural gas fuel supplies to generating plants, and generating unit […]

The U.S. power sector has seen a number of developments on the regulatory front in recent months. Here’s where major federal rules stand today. (For a more dynamic and graphic version of this article, see http://powermag.com/long-form-stories/bw-power/ .) GHG Rules New Power Plants. The Environmental Protection Agency (EPA) in September 2013 revised a 2012 proposal to […]

In the October 2013 issue of POWER, Tata Power’s 4-GW Mundra ultra-mega power plant was recognized with a Top Plant award in the coal category. This year POWER recognizes another behemoth in the region—and

This is a tough time to be running a business as power-intensive as aluminum smelting in India. The economic boom that has lifted many of the nation’s 1.2 billion citizens out of persistent poverty has

Germany’s energy transition— Energiewende —has made a lot of headlines. Whether you agree with the country’s energy policy or not, there is no denying that it has spurred the growth of renewables. Even

Cold temperatures are nothing new, but extreme winter weather has been in the headlines more and more in recent years. Many of us had never heard the term “polar vortex” before last winter, but earlier

The upcoming implementation of the Environmental Protection Agency’s (EPA’s) Mercury and Air Toxics Standards (MATS) is putting pressure on coal-fired power plants to develop and implement compliance

Resource-rich Poland’s push to prioritize coal as its main energy source and to cultivate a nuclear power program to boost energy security at the expense of climate objectives has provoked its portrayal

Eskom, South Africa’s largest utility, was established in 1923 as the Electricity Supply Commission and was converted into a public company, wholly owned by the government, in July 2002. Eskom produces about

Bad weather, unforeseen setbacks, and even natural disasters are far from unheard of during power plant construction. But there may be no plant that experienced the sort of construction hardships that Tokyo

Several countries and companies at the United Nations (UN) Climate Summit 2014 in New York City pledged action to address climate change by slashing carbon emissions, mobilizing funding, or putting a price on carbon.  The one-day event on Tuesday was designed to raise political momentum and spur transformative action ahead of COP 21, the December […]