POWER

Luminant used remnants of the ill-fated Twin Oaks and Forest Grove plants (which were mothballed more than 30 years ago) to build the new two-unit 1,600-MW Oak Grove Plant. Though outfitted with equipment from those old plants, Oak Grove also sports an array of modern air quality control equipment and is the nation’s first 100% lignite-fired plant to adopt selective catalytic reduction for NO_x control and activated carbon sorbent injection technology to remove mercury. For melding two different steam generators into a single project, adopting a unique and efficient “push-pull” fuel delivery system, assembling a tightly integrated team that completed the project on time and within budget, and for completing what was started almost four decades ago, Oak Grove Power Plant is awarded POWER magazine’s 2010 Plant of the Year award.

With commercial operation of Madison Unit 3, Cleco Power now claims bragging rights for owning the largest 100% petroleum coke–fired circulating fluidized bed power plant in North America. For using readily available fuel in an environmentally attractive manner, adopting fuel-flexible combustion technology, balancing the utility’s generation portfolio, and adopting an innovative fuel-handling system design, Madison Unit 3 is the winner of POWER’s 2010 Marmaduke Award for excellence in operation and maintenance. The award is named for Marmaduke Surfaceblow, the fictional marine engineer and plant troubleshooter par excellence.

A national R&D program has been under way to develop materials technology for constructing boilers and turbines capable of operating at advanced ultrasupercritical steam conditions in pulverized coal plants. The large-scale, multiyear, joint government/industry project seeks to increase the efficiency of power plants by increasing their steam conditions up to 1,400F (760C) at 5,000 psi (35 MPa). The ongoing project has already identified the materials and processes for successful operation at these higher steam conditions.

The amount of air leaking into the boiler envelope is difficult to estimate. Traditional methods of measuring oxygen at the furnace exit and economizer exit do not account for all types of air leakage. By using molar calculations and total airflow measurement, a good approximation of the total air in-leakage rates of a boiler can be quickly determined using station instruments.

The cover of the July 5 special History Issue of TIME magazine features Thomas Edison holding a glowing bulb. A series of articles celebrate Edison’s many inventions and closes with this: “Edison’s laboratories were the forerunners of the interactive technological think tanks of Apple, Google, and Microsoft.” Though the sentiment lauds Edison, I think it’s an overstatement.

Catalysts used in selective catalytic reduction (SCR) systems in utility boilers provide high NO_x removal efficiencies that routinely exceed 90%. A major co-benefit of applying SCR to coal-fired power plants is that the SCR catalyst also oxidizes the vapor phase mercury from an elemental form to a soluble ionic form, which can be readily captured in a downstream flue gas desulfurization process. Mitsubishi Heavy Industries and Cormetech have developed an advanced SCR catalyst technology with high mercury oxidation activity capable of achieving 95% oxidized mercury over a wide range of operating conditions.

In “Dry Injection of Trona for SO3 Control” (May 2010), NH4HSO4 is ammonium bisulfite. In the June “Focus on O&M,” the engines shown in Figure 6 each have eight cylinders. June’s “Competition for Offshore Turbine Market Heats Up” stated that drive or gearless turbines accounted for 14% of the world’s installed offshore capacity in 2009. […]

This May, following two years of construction, Siemens Energy put into operation Irsching 5, an 847-MW advanced combined-cycle power plant near Ingolstadt, Germany. The plant’s owner, Gemeinschaftskraftwerke Irsching GmbH—a joint venture of E.ON, Mainova, and HEAG Südhessische Energie—features two SGT5-4000F gas turbines, one SST5-5000 steam turbine, three hydrogen-cooled generators, electrical systems, and Siemens’ SPPA-T3000 instrumentation and control system.

The competitive push for more efficient power generation prompted the management of East Kentucky Power Cooperative’s Spurlock Station to provide training and to implement standardized work processes in order to achieve higher productivity. To that end, Spurlock’s management collaborated with salaried and hourly personnel to design and implement work process optimization. Two years later, their proactive, operations-driven culture is promoting continuous improvement at this facility.

Nearly a quarter-century after the Chernobyl nuclear power station disaster in Soviet Ukraine, Russia has been making deals with energy-starved nations all over the globe to help them build new nuclear power plants using Russian second-generation reactor technology.

Steve Elonka began chronicling the exploits of Marmaduke Surfaceblow—a six-foot-four marine engineer with a steel brush mustache and a foghorn voice—in POWER in 1948, when Marmaduke raised the wooden mast of the SS Asia Sun with the help of two cobras and a case of Sandpaper Gin. Marmy’s simple solutions to seemingly intractable plant problems remain timeless. This Classic Marmaduke story, originally published more than 50 years ago, illustrates that although solutions may be easy to identify, the challenge is often in the implementation. Sometimes a little horse sense is all that is necessary.

While the U.S. awaits congressional action on a cap-and-trade program that could possibly be limited to just the utility sector, Canada is moving, starting in 2011, to phase out older coal power plants and replace them with natural gas–fired plants. The announcement, made this June by Environment Minister Jim Prentice prior to the G8 and G20 summits, could have serious implications for coal-fired generators in the country.

Eliminate waste in coal, gas, or nuclear power plant construction through a holistic application of lean principles.

This June, AREVA installed the reactor pressure vessel (Figure 6)—the core of the unit—at the world’s first EPR project, which is under construction in Finland. Now the company will engage in a flurry of installation activities for heavy nuclear components, including lifting into the reactor the first of the four steam generators. Most of the work is expected to be completed by the end of 2012, with power production beginning in 2013.

ABB’s new 266 series is an optimized pressure transmitter family that combines modern electronic pressure measurement with the company’s unique human machine interface (HMI) in one common product series, providing base accuracy from ±0.025% to ±0.06%. The series offers the industry’s best draft range, ABB claims. For combustion airflows, this means exceptional resolution with tighter […]

By Kennedy Maize Washington, D.C., July 29, 2010 — More hurdles have arisen for the nascent nuclear renaissance. It now appears that federal loan guarantees for new nukes could turn out to be a dead end, meaning that only two utilities, at most, will get Department of Energy support for new reactors. In passing the […]

By Kennedy Maize Washington, D.C., July 28, 2010 — Will global warming overwhelm the U.S. with illegal Mexican immigrants? That’s the preposterous claim by three Princeton academicians in an online article for the Proceedings of the National Academy of Sciences, and it has prompted guffaws from among sophisticated readers. In the article – “Linkages among […]

Hoosier Energy, an Indiana-based rural cooperative, on Friday reached an agreement with the U.S. Environmental Protection Agency (EPA) and the Indiana Department of Environmental Management (IDEM) to resolve alleged New Source Review (NSR) violations of the Clean Air Act.

Tampa Electric said on Monday it is participating in two DOE-funded demonstration projects at the company’s Big Bend and Polk Power Stations. The projects are designed to advance carbon dioxide capture technologies and could lead to the development of technologies on a large scale.

A federal appeals court on Monday reversed a January 2009 ruling by a North Carolina U.S. District Court that had declared emissions from the Tennessee Valley Authority’s (TVA’s) coal plants in eastern Tennessee and Alabama a public nuisance in North Carolina and ordered the nation’s largest public power provider to install expensive control technologies. The appeals court said the ruling was “flawed for several reasons.”

The $3.5 billion Taylorville Energy Center (TEC), a proposed integrated gasification combined cycle (IGCC) plant with carbon capture and storage (CCS), has been awarded a $417 million investment tax credit under a program jointly administered by the Department of Energy (DOE) and the U.S. Treasury Department. The tax credit is believed to be the largest ever granted to a single project.

PPL Montana will reportedly ask the U.S. Supreme Court to review an order from the Montana Supreme Court that requires it to pay “rent” for use of the riverbeds on which the company’s hydroelectric dams are built.

Texas Attorney General Greg Abbott on Monday legally challenged the U.S. Environmental Protection Agency’s (EPA’s) disapproval of the state’s flexible permits program, a system which allows power plants, factories, refineries, and other industrial plants to exceed emission limits in certain areas as long as they stay within overall limits.

By Kennedy Maize Washington, D.C., July 22, 2010 — Is anyone really surprised that Senate majority leader Harry Reid (D-Nevada) has finally declared major energy legislation dead? For weeks, Reid has been singing words from a country classic that I’m sure he knew were false: “Mother’s not dead, she’s only sleeping.” Today, he recognized the […]

The Department of Energy’s (DOE) failure to systematically assess development of carbon capture and storage (CCS) technologies renders it unable to gauge their maturity and to provide resources required to move these technologies toward commercial demonstration, the Government Accountability Office (GAO) found in a report released to the public last week.

With only about 13 days remaining before the U.S. Senate’s month-long summer recess is scheduled to begin, concerns are mounting about whether it may be too late to delve into an “energy-only bill,” let alone a “utility-only” carbon-curbing bill.

At least four militants reportedly stormed into a hydropower plant in Russia’s volatile North Caucasus region early this morning, shooting dead two security guards before detonating four bombs in a turbine hall and shutting down the plant.

The International Energy Administration (IEA) alleges, based on preliminary data, that China has overtaken the U.S. to become the world’s largest energy user. But China on Tuesday rejected that report, saying the IEA’s data is unreliable. The IEA said that China consumed 2.252 billion tons of oil equivalent in 2009—4% more than the 2.17 billion […]

A project piloting underground coal gasification (UCG) technology in Australia was last week shut down for tests by the Queensland Government for carcinogenic chemicals in nearby water bores.

Babcock & Wilcox subsidiary Babcock & Wilcox Nuclear Energy Inc. (B&W NE) and Bechtel Power Corp. today announced they have entered into a formal alliance to design, license, and deploy a Generation III++ small modular nuclear power plant based on B&W mPower small modular reactor (SMR) technology. The new alliance will be known as Generation mPower and could deploy its first units by 2020.