Coal

Development of a $3.2 billion circulating fluidized bed (CFB) petroleum coke–fired power plant proposed for construction in Corpus Christi, Texas, was suspended last week. Chase Power Development, parent company of the 1,300-MW Las Brisas Energy Center, cited market conditions and regulatory obstacles for its decision.

The U.S. Court of Appeals for the D.C. Circuit last week declined petitions for rehearing en banc of the Cross-State Air Pollution Rule (CSAPR). The federal court’s denial of the petitions leaves in place the Clean Air Interstate Rule (CAIR)—a Bush-era rule that the court had formerly invalidated in July 2008 and then reinstated. It also could prompt environmental groups, 15 states, and the Environmental Protection Agency (EPA) to take their case to the U.S. Supreme Court.

Mississippi regulators last week approved a settlement with Mississippi Power that will allow the Southern Co. subsidiary to seek higher customer rates for rising costs associated with its 582-MW Kemper integrated gasification combined cycle (IGCC) plant under construction in Kemper County. On the day following that ruling, the utility asked the state for permission to recover $172 million for the 2013 regulatory year.

A settlement agreement reached with environmental group the Sierra Club last week may mean that Iowa’s largest utility, MidAmerican Energy Co., will switch 674 MW of coal-fired capacity to natural gas or other fuels by April 2016.

Wisconsin Energy nearly doubled its natural gas burn for power generation in 2012, from 23.9 billion cubic feet (bcf) in 2011 to 46.5 bcf in 2012. Gale Klappa, CEO, said during a January 30 earnings conference call that natural gas units at the company’s 1,150-MW Port Washington generating station operated at a 46% capacity factor in 2012. This compares with a 23% capacity factor in 2011.

The Environmental Protection Agency (EPA) on Dec. 20 finalized changes to a specific set of adjustments to the Clean Air Act that apply to coal, oil, natural gas, and biomass boilers and certain solid waste incinerators.

The world’s first supercritical pulverized coal–fired low mass flux vertical tube Benson boiler is Jinzhushan 3, located in the Hunan Province of the People’s Republic of China. The 600-MW Babcock & Wilcox Power Generation Group Inc. once-through boiler burns Chinese anthracite using downshot pulverized coal (PC) technology. Part 1 of this three-part article presented a summary of the project design features. Part 2 discussed the boiler technology. This third and final part reviews the plant’s performance test results.

Proposed U.S. Environmental Protection Agency rules and a greater reliance on newer generation technologies have put the nation’s aging fossil-fueled generation units at risk of retirement. The numbers demonstrate that the U.S. power generating fleet is older than you may believe.

While the war on coal is working to reduce coal generation and consumption and associated carbon dioxide emissions in the United States, many world economies are looking toward coal for future generation needs. China, India, Russia, and Germany, to name a few, are building coal-fired power plants.

The Environmental Protection Agency (EPA) issued a final rule in December that strengthens its National Ambient Air Quality Standard (NAAQS) for fine particulate matter (PM2.5) to 12.0 micrograms per cubic meter (μg/m³) but declared it would not finalize a proposal to update separate secondary PM2.5 standards. The final rule’s issuance was lauded by environmental and public health groups, though industry groups opposed it, citing concerns that nonattainment areas would suffer economic setbacks.

Fuel for power generation will account for about 55% of demand-related energy growth through 2040, ExxonMobil forecasts in its latest annual energy forecast. Like several other forecasters, the Irving, Texas–based oil and gas company also predicts that natural gas will emerge as the leading source of electricity generation by 2040.

Among the surprises in President Barack Obama’s second Inaugural Address on Monday was his promise to address the challenges of climate change and sustainable energy. An independent draft report released about a week earlier on climate change and its impacts in the U.S. may have helped to fuel his renewed resolve on these intertwined issues.

A federal court on Tuesday ruled that the Environmental Protection Agency (EPA) exceeded its authority when it established a screening tool that could allow some new power plants to be exempted from certain requirements under the EPA’s October 2010-finalized rule aimed at curbing emissions of particulate matter less than 2.5 micrometers in diameter.

A proposal released by the Environmental Protection Agency (EPA) on Friday could require owners of the 2.3-GW coal-fired Navajo Generating Station (NGS) near the Arizona-Utah state line to install emission controls worth $1.1 billion to improve visibility at 11 national parks and wilderness areas in the Southwest.

The U.S. Supreme Court on Tuesday declined to review challenges to a 2010 Environmental Protection Agency (EPA) rule setting the acceptable limit for sulfur dioxide (SO2) in the air at 75 parts per billion (ppb) over a 1-hour period. The denial of certiorari leaves intact the EPA’s final revision to the primary National Ambient Air Quality Standard (NAAQS) for SO2 emissions from power plants and other industrial facilities.

An agreement reached between the Virginia Attorney General’s office, Dominion Virginia Power, and Appalachian Power proposes to reduce financial incentives associated with the utilities’ generation of renewables and construction of new fossil fuel–fired power plants.

A federal appeals court last week denied a motion from developers of new coal- and oil-fired power plants to force the Environmental Protection Agency (EPA) to finalize its reconsidered Mercury and Air Toxics Standards (MATS) for new sources by March and help them avoid a regulatory Catch-22 posed by a looming rule to curb greenhouse gas emissions in new plants.

Georgia Power on Monday said it was seeking state regulatory permission to decertify and retire 15 coal- and oil-fired generating units—a total capacity of 2,061 MW—citing several factors, including costs to comply with existing and future environmental regulations, economic conditions, and lower natural gas prices.

A settlement reached with the Environmental Protection Agency (EPA) and the Department of Justice to resolve alleged violations of the Clean Air Act will require Wisconsin Public Service (WPS) to invest about $300 million in pollution control technology, pay a civil penalty of $1.2 million, and spend $6 million on environmental mitigation projects.

In a settlement with the federal government, Kentucky Utilities has agreed to spend $57 million to install a sulfuric acid mist emission control system, replace a coal-fired boiler, and pay a civil penalty of $300,000 to resolve alleged Clean Air Act violations at its 2-GW coal-fired Ghent Station.

The Environmental Protection Agency (EPA) on Dec. 20 finalized changes to a specific set of adjustments to Clean Air Act that apply to a coal, oil, natural gas and biomass boilers and certain solid waste incinerators.

About 1,199 new coal-fired facilities (as defined by the World Research Institute)—a total installed capacity of 1,401 GW—were being proposed globally as of July 2012, spread across 59 countries.

Power plant operators, managers, and other professionals from across Southeast Asia met in Hong Kong in early November for the second annual Asian Sub-Bituminous Coal Users’ Group meeting, created to share information and best practices related to safety, handling, combustion, characteristics, and risk management of the fuel.

Regardless of how much prevention is employed to mitigate combustible dust in coal-fired power plants, fugitive coal dust is pervasive and can be dangerous. In coal-fired power plants, mechanical transfer points are leading sources for airborne fugitive dust. However, because coal dust travels quickly over large areas with minimal airflow, fugitive combustible dust settles in many areas.

Achieving a balance between affordable and sustainable electricity while improving reliability is a challenge unlike any the electricity sector has faced since its inception. Technology innovations in key areas such as energy efficiency, smart grid, renewable energy resources, hardened transmission systems, and long-term operation of the existing nuclear and fossil fleets are essential to shaping the future of electricity supplies.

North American shale gas was supposed to realign the generation fleet here and abroad (thanks to anticipated exports) far into the future. Turns out, that’s not exactly how the near term is shaping up. Despite stagnant (and even putrid) economies and legislative bodies in the U.S. and EU, there promises to be sufficient market volatility to keep everyone alert.

For the first time, U.S. generation from coal and natural gas was equal in 2012, although just momentarily. Gas dominated early in the year, but as gas prices rose in response to supply and demand forces, coal use rebounded. Expect more of the same give-and-take in 2013.

Exports of natural resources have given Russia increased global political and economic clout. But domestically, the world’s fourth-largest generator of electricity has had to embark on the most ambitious reforms ever undertaken to modernize dilapidated Soviet-era power infrastructure and incentivize a massive capacity expansion to support a revived economy.

Navigant’s Operational Excellence Awards are presented annually to those North American coal-fired generation plants that have demonstrated excellence in cost-efficient reliable plant performance over the preceding five-year period. The data used to select the winners derives from Navigant’s Generation Knowledge Service fossil database.

Global generating capacity is poised to soar by more than 72%, to 9,340 GW, by 2035 from 5,429 GW in 2011, despite retirement of about 1,980 GW, the International Energy Agency (IEA) forecasts in its World Energy Outlook 2012, released in November.