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News
Rethink wind strategy, Carbon Trust tells UK government
The UK will build only a quarter of the 29 GW of offshore wind farms needed to reach its target to have 15% of energy from renewable sources by 2020 unless the government acts urgently to reduce costs and risks to developers, a government-funded but independent think tank said in a report launched last week. […]
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News
Appellate court upholds Indiana commission’s approval of IGCC plant
The Indiana Court of Appeals on Thursday ruled against four environmental and consumer groups and upheld a decision by state regulators to allow Duke Energy to build a $2.35 billion integrated gasification combined cycle (IGCC) plant at its coal and oil–fired Edwardsport facility in Knox County, Ind. Duke and Southern Indiana Gas and Electric Company […]
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News
PJM board announces $1.8 billion for transmission improvements
PJM Interconnection has approved $1.8 billion in electric transmission system additions and grid upgrades to enhance the reliability of its power supply system. The grid operator’s system serves parts of 13 states and the District of Columbia. On Friday, it said the upgrades and improvements authorized by its board comprised dozens of projects. Most new […]
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News
GDF Suez threatens court action if Belgium imposes nuclear levy
Belgian utility Electrabel has threatened legal action if the country’s government enacts a bill that would force the its two nuclear operators to pay a € 250 million ($336 million) tax. The one-time levy would force Electrabel and SPE to contribute to the 2008 financial year. If they do not comply, a penalty of 2% […]
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News
ISO New England releases 10-year plan for region’s power system
A regional system plan for 2008 released Friday by ISO New England Inc. forecasts that the region is likely to have sufficient capacity to meet electricity demand through 2014, but significant challenges—such as major transmission upgrades—remain for the region New England Inc. is the operator of the region’s bulk power system and wholesale electricity markets. […]
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General
Local politics reroutes the PATH project
By Kennedy Maize Evidence builds for the proposition that constructing new high-voltage transmission remains harder than bringing on new power generation. Facing increasing political opposition in West Virginia and Maryland, American Electric Power, headquartered in Columbus, Ohio, and Allegheny Energy of Greenburg, Pa., last week said they are going to reroute their planned 765-KV, […]
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General
Expect big-time spending in a new administration
By Kennedy Maize What will the new president really do once on infrastructure spending, despite the anodyne economic platitudes of the campaign? My guess is we will see the greatest economic stimulus effort since WW2. Deficits be damned. That’s probably good. The economic enemy is deflation, not inflation, if the Great Depression is any […]
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General
Sarah Palin’s Arctic: hot or cold?
A report from the front lines of the alleged global warming war. The Anchorage Daily News reported on Monday, Oct. 13, 2008, that summer snow loss in the state in 2008 was less than winter snowfall, reversing a trend of two centuries. The newspaper said that “unusually large amounts of winter snow were followed by […]
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General
McCain, Palin Ticket Doesn’t Really Dig Coal
Desperate to score points in a crucial state where they are in the double-digit dumps, the Republican McCain-Palin presidential ticket rolled out their heartfelt support for “clean coal technologies” at a rally in Scranton, Pa., this week. Vice Presidential Nominee Sarah Palin appeared in full throat. Her homage to coal, of course, came despite McCain’s […]
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O&M
Managing software life-cycle issues
Software ranges from shrink-wrapped products available “off the shelf” to custom corporate implementations of enterprise systems that require sessions with shrinks to keep everyone sane. Regardless of its complexity, every piece of software a plant uses, or interfaces to, poses critical issues that require life-cycle management. Although functionality has always been the chief specification for software, plants must pay far more attention to long-term quality issues. These two concerns are often at odds with each other.
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News
PPL Corp. submits COL application for Bell Bend nuclear plant near Berwick, Pa.
PPL Corp. on Friday submitted an application to the U.S. Nuclear Regulatory Commission (NRC) for a license to build and operate a new nuclear plant—the 17th received by the agency so far. The company has proposed in its combined construction and operating license (COL) application to build the Bell Bend nuclear plant close to […]
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Coal
Finessing fuel fineness
Most of today’s operating coal plants began service at least a generation ago and were designed to burn eastern bituminous coal. A switch to Powder River Basin coal can stress those plants’ boiler systems, especially the pulverizers, beyond their design limits and cause no end of operational and maintenance problems. Many of those problems are caused by failing to maintain good fuel fineness when increasing fuel throughput.
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News
Presidential campaigns debate energy policy at MIT
Representatives from both presidential campaigns engaged in a spirited debate about their candidates’ approaches to solving the nation’s energy problems at the Massachusetts Institute of Technology (MIT) on Oct. 6. Among the notable distinctions were that John McCain favors leaving energy decisions up to the states while Barack Obama calls for significant regulations and investment […]
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O&M
Repairing low-pressure rotors with cracked blade attachments
An increasing number of low-pressure steam turbines—especially at supercritical fossil units—have experienced stress corrosion cracking in the blade attachment region of their low-pressure rotors. Approaches to solving this problem range from redesign of the attachment and blade replacement to in-situ weld repair. Regardless of the procedure selected, the solution must completely restore the turbine performance while minimizing outage duration.
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Coal
Chemical looping and coal
What does human metabolism have in common with coal combustion? Quite a bit, it turns out, say researchers at the National Energy Technology Laboratory (NETL) who are studying chemical looping combustion (CLC) involving coal gasification, an emerging technology for clean energy production from fossil and renewable fuels.
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Coal
TS Power Plant, Eureka County, Nevada
Top Plant: Not all coal-fired power plants are constructed by investor-owned utilities or independent power producers selling to wholesale markets. When Newmont Mining Corp. recognized that local power supplies were inadequate and too expensive to meet long-term electricity needs for its major gold- and copper-mining operations in northern Nevada, it built its own generation. What’s more, Newmont’s privately owned 200-MW net coal-fired plant features power plant technologies that will surely become industry standards. Newmont’s investment in power and technology is also golden: The capital cost will be paid back in about eight years.
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Business
World energy use to surge 50% between 2005 and 2030
Worldwide energy consumption is projected to grow 50% between 2005 and 2030, driven by robust economic growth and expanding populations in the world’s developing countries, the U.S. Energy Information Administration (EIA) said in a reference case projection from its International Energy Outlook 2008 in June.
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Business
The return of compressed air energy storage
Faced with soaring energy prices, researchers and developers worldwide are giving compressed air energy storage (CAES)—a technology almost 50 years old—a dusting, a spit shine, and a new life. In particular, they see it as a critical component for the dispatch of wind and other renewable power. The technology, which involves storing off-peak-generated energy in […]
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Geothermal
U.S. sees 20% jump in planned geothermal
The U.S., which continues to lead the world in on-line geothermal energy capacity, saw a 20% jump in new power projects since January this year, a survey released by the Geothermal Energy Association (GEA) in August showed.
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Coal
Rawhide Energy Station, Fort Collins, Colorado
Top Plant: The staff of the Rawhide Energy Station have been racking up operating stats and an environmental performance record that is the envy of other plant managers. In the past decade Rawhide has enjoyed an equivalent availability factor in the mid- to high 90s and an average capacity factor approaching 90%. Still not content with this performance, Rawhide invested in new technology and equipment upgrades to further optimize performance, reduce emissions, and keep cost competitive.
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Hydro
New workshop completes first overhaul
In early August, a special transport departed from Voith Siemens Hydro’s Heidenheim workshop bearing the company’s 300-ton, 300-MVA hydro motor-generator back to Schluchseewerk AG’s Wehr pumped-storage station in Germany’s Black Forest.
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O&M
Entergy’s “big catch”
Entergy christened its Performance Monitoring and Diagnostic Center several years ago to leverage the expertise of its most senior operators and technicians across the company’s entire fleet of plants. The center also makes use of advanced software tools that increase plant availability and reliability by identifying faults before they become major, unplanned outages. The center paid for itself for years to come with a single “big catch” last year.
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Solar
Scorching asphalt and solar power
Through asphalt, researchers are looking to develop a solar collector that could turn roads and parking lots into ubiquitous—and inexpensive—sources of electricity and hot water.
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Coal
Map of Coal-fired Power Plants in the United States
Courtesy: Platts Data source: Platts Energy Advantage and POWERmap. All rights reserved.
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Business
POWER digest (October 2008)
News items of interest to power industry professionals. EDF and CGNPG create joint venture for Taishan nukes. Électricité de France (EDF) and the China Guangdong Nuclear Power Group (CGNPG) on Aug. 10 finalized a framework agreement made earlier, in November 2007, and formally created a joint venture company to build and operate two evolutionary pressurized […]
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Coal
Boryeong Thermal Power Complex, Boryeong-Si, Chungcheongnam-do Province, South Korea
Top Plant: From tall skyscrapers and flashing neon signs to Buddhist temples and pagodas, South Korea is a mixture of the new and old Asia. Doing its part to help modernize this country, the Boryeong Thermal Power Complex operates six coal-fired 500-MW units that provide electricity to power South Korea’s economic growth. One of the important reasons for this facility’s overall success is its operational reliability. An example of this is Boryeong Unit 3’s outstanding achievement of 3,000 days of trouble-free operation.
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Coal
Computer simulation as a NOx reduction design tool
A utility evaluated various methods of obtaining a NOx reduction of at least 30%, as required by upcoming regulations for its boiler, which originally produced 0.54 lb of NOx/million Btu at 410 MW full load. Nalco Mobotec engineers performed a computational fluid dynamics (CFD) simulation of the boiler to first understand the boiler’s combustion process and then determine the most economical method to achieve the required NOx reduction.
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Coal
Dubuque Generating Station, Dubuque, Iowa
Top Plant: Alliant Energy’s Dubuque Generating Station is a fine example of why small doesn’t mean insignificant in the power generation industry. This winner of the EUCG Best Performer award in the small plant category shows that its operating excellence towers over that of many larger and much newer coal-fired power plants.
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News
Double duty flowmeter
As fluid passes through Exact Flow’s new DX-DL dual-rotor turbine flowmeter, the dual rotors become hydraulically coupled due to their counter-rotation. Not only does this allow the rotors to overcome the inertia and drag that typically affect single-rotor turbine flowmeters, it also extends the flow range to 500:1—five times the 100:1 flow range of a […]
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Commentary
Transmission: Lines that connect the renewable energy dots
The United States is used to transporting fuels to electric generation centers that are close to where the power supply is needed. We see trains carry coal by the carload from resource-rich areas to generation centers across the country. Natural gas is distributed through pipelines. Even uranium is transported to supply our nuclear stations. However, […]