Coal

Dispatch competition between U.S. coal and natural gas plants has been a prominent feature of power markets since 2009. Gas prices have strengthened significantly over early 2012 levels, working to take pressure off coal plants for the upcoming year, according to a new analysis by SNL Energy.

Paradise Fossil Plant Unit 2’s record-setting performance of 259+ days of continuous operation for a cyclone-fired boiler is attributed to excellence in plant operations and maintenance processes, a diligent and well-trained staff, and leadership that places high value on both. The Paradise experience proves that plants can’t help getting older, but they don’t have to get old.

Steam turbine rotors bend during operation, but the bearing and supports are designed to keep the static and dynamic forces under control. However, bending can cause impact between stationary and rotating parts—often cascading impacts. An operator of many utility-scale steam turbines shares its extensive field experience identifying the root cause of failures as well as […]

In a letter to President Obama last week, four Senate Democrats expressed "continued concern" about the Environmental Protection Agency’s (EPA’s) plans to issue greenhouse gas (GHG) new source performance standard (NSPS) rules for new fossil fuel-fired power plants. The proposed rules could ban "new state-of-the-art" plants from being built and hamper advancements that could benefit the nation’s coal power sector, the senators argued.

The Environmental Protection Agency (EPA) estimates final regulations curbing greenhouse gas (GHG), mercury, and air toxics emissions from new sources could appear in the Federal Register over the next six weeks. Also forthcoming are final cooling water intake rules and proposed effluent guidelines. The coal ash rule, which has no target date for a final rule, may not be issued this year, the agency said.

Bill Gates didn’t mince words last night when sharing with the IHS CERAWeek crowd his thoughts about public support for basic scientific research in the United States.

China will reduce the nation’s carbon emissions and energy use per unit of gross domestic product (GDP) by at least 3.7% this year and perform trials for a carbon-trading program, China’s National Development and Reform Commission (NDRC), said in a report on Tuesday. The country would also make "greater efforts to conserve energy" and "reduce the discharge of major pollutants," it’s top economic planner said.

Energy demand in Mexico, according to the Secretary of Energy (SENER), will increase by approximately 4% each year for the next ten years, and with it the potential for private sector growth in the industry. Download the report.

Mercury emissions from power plants in 137 United Nations member countries could be subject to strict controls and reductions if an international treaty is signed by participating nations this October.

Four bouts of dense smog described as the worst air pollution in recent memory enveloped more than half of China in January, from the Beijing-Tianjin-Hebei triangle in the north of the country to Nanjing in the south, via the central city of Wuhan.

Feedwater heaters are used to preheat boiler feedwater by condensing steam extracted from several stages of the steam turbine. Feedwater heaters enhance the thermal efficiency of the power plant by reducing the amount of fuel burned in the boiler to produce a specified power. At the same time, the steam energy extracted from the turbine by the feedwater heater helps to reduce the rate of energy rejection to the environment via the condenser.

The use of low-grade coal is becoming synonymous with circulating fluidized bed (CFB) power plants. Although CFB technology may often be a better choice than pulverized coal technology, that is not always the case. Owners and developers need to consider several technical and economic factors before making this decision.

Steam turbine blade cracking often suggests the need for an upgraded blade design. Follow the process of reversing engineering a failed blade to produce a more reliable and efficient design.

A modified settlement reached between American Electric Power (AEP), a coalition of citizen groups, and the Environmental Protection Agency (EPA) on Monday will allow the utility to install less expensive pollution controls on a coal-fired power plant if it ceases coal combustion by 2015 at three aging power plants in Indiana, Ohio, and Kentucky.

The Advanced Research Projects Agency-Energy (ARPA-E) may be the most important federal agency many in the power industry have never heard of. Whatever generation technology you are associated with, ARPA-E’s work will affect its future.

A rule proposed by the Environmental Protection Agency (EPA) directs 36 states to revise their Clean Air Act State Implementation Plans (SIPs) to eliminate exemptions for excess emissions of air pollutants at power plants during startup, shutdown, or when the plant malfunctions.

Boosted by President Obama’s inaugural address commitment to mitigate climate change, congressional Democrats have initiated several more climate measures. A legislative packet that seeks to mitigate climate change by enacting a carbon "fee" of $20 per ton of emitted carbon or methane equivalent was introduced last week by Sens. Bernie Sanders (I-Vt.) and Barbara Boxer (D-Calif.). In the House, as several Democratic amendments for climate change hearings were voted down, more than 40 lawmakers urged President Obama to create a panel that would help communities deal with climate change events.

An agreement reached on Friday between PNM, New Mexico’s largest electricity provider, the New Mexico Environment Department (NMED), and the U.S. Environmental Protection Agency (EPA) calls for the retirement of two units at the 1,800-MW coal-fired San Juan Generating Station by 2017 to comply with federal visibility rules. The remaining two units will be retrofitted with selective noncatalytic reduction technology by 2016, a nitrogen-oxide reducing technology.

A think tank affiliated with the New York University School of Law is urging the Environmental Protection Agency (EPA) to mandate cuts of greenhouse gas (GHG) emissions in all 50 U.S. states through a little-used section of the Clean Air Act.

Members of the Mississippi House passed a pair of rate mitigation and securitization bills that would allow the Mississippi Public Service Commission (MPSC) to approve a multiyear rate plan for Mississippi Power’s $2.88 billion Kemper integrated gasification combined cycle (IGCC) plant that is under construction in Kemper County.

President Obama outlined a number of key energy-related measures in his State of the Union speech on Tuesday night, urging Congress to pursue legislation to mitigate climate change and calling for an expansion of clean energy and reduced red-tape for natural gas and oil permits.

Citing low natural gas prices, Duke Energy announced on Feb. 1 that it would shutter its 1920s-built Buck and Riverbend stations two years before the coal-fired plants were slated for retirement. The company had chosen to retire the plants just before April 2015, which is the compliance deadline for recently enacted federal environmental rules.

A newly announced resource strategy could require Duluth, Minn.–based Minnesota Power to convert its 110-MW Laskin Energy Center in Hoyt Lakes, Minn., to a natural gas peaking facility in 2015, install environmental upgrades at its 558-MW Clay Boswell Energy Center Unit 4 in Itasca County, and retire one of three coal-fired units at its 225-MW Taconite Harbor facility in Schroeder.

An energy blueprint released on Monday by Sen. Lisa Murkowski (R-Alaska), the ranking minority member of the Senate Energy and Natural Resources Committee, calls for complete independence from OPEC oil by 2020.

Criticism from Sen. John Hoeven (R-N.D.) and Rep. David McKinley (R-W.V.) has reportedly prompted the Congressional Research Service (CRS) to revise a December 2012 report in which it found coal ash bills sponsored by the lawmakers would not guarantee the protection of human health and the environment.

FutureGen 2.0, a government-backed project that involves the upgrade of a coal-fired power plant in Meredosia, Ill., with oxy-combustion technology to capture 90% of that plant’s carbon emissions and then sequester them underground, has entered its second phase, the Department of Energy (DOE) said on Monday.

The Environmental Protection Agency’s (EPA’s) imposition of a federal implementation plan (FIP) to curb regional haze that could force coal-fired power plants in Arizona to install $1 billion in pollution controls was challenged by the state in federal court last week.

Duke Energy’s once coal-heavy fleet is making a big transition to gas. Two new advanced combined cycle plants, and a third set to start up later this year, are a key part of the North Carolina–based firm’s drive to modernize its portfolio.

The U.S. saw the historic start of operations at its first ultrasupercritical coal-fired power plant last December as Southwestern Electric Power Co.’s (SWEPCO’s) 600-MW John W. Turk, Jr. Power Plant switched on in Arkansas.

Improper layup practices are a major contributor to boiler tube failures and to steam turbine pitting and cracking in U.S. fossil plants. EPRI’s research into identifying damage mechanisms, utility best practices, and innovative new methods to protect plant equipment during outages will aid plant operators in achieving a successful layup.