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  • European Interest in Saharan Solar Project Heats Up

    Plans to install a series of solar panel farms in the Sahara Desert to power Europe and North Africa are heating up. The idea was discussed in May as part of the newly formed Mediterranean Union, launched at a summit in Paris, and it now has the backing of both UK Prime Minister Gordon Brown and French President Nicolas Sarcozy.

  • Marmy’s Deep-Freeze Blackout

    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 he 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, published 50 years ago, takes place during the Cold War at an Air Force Base in northern Greenland, where under-ice tunnels were constructed to move nuclear rockets around the facility unobserved. The miniature nuclear reactor was operated for almost three years before it was shut down and returned to the U.S., ending the Army’s nuclear program. Greenland officially became a separate county within the Kingdom of Denmark in 1953, and home rule was introduced in 1979.

  • Turning Sewage into Renewable Energy

    News has been emerging from around the world about several projects that seek to turn human sewage — arguably the dirtiest of manmade wastes — into clean energy.

  • Intelligent Cooling Tower System

    Electro-Chemical Devices’ new plug-and-play Model 2122 Cooling Tower Control System (CTCS) is designed to apply the various chemicals used to prevent corrosion, scaling, and fouling in water-based wet cooling towers. The system also controls acid feed via pH monitoring, blowdown via conductivity, and the inhibitor via a user-selected time basis. Model 2122 CTCS features a […]

  • Managing Minimum Load

    Reducing the minimum load at which a steam turbine can reliably operate is one way to increase revenue for marginal base-loaded units during periods of low electrical demand. For this reason, it is not unusual to see merchant plants operating at "super minimum" load levels that are well below the typical 25% rated full-load limits. However, such units are operating well outside the original equipment manufacturer (OEM) design basis, and owners may experience undesirable damage to their turbines for a number of reasons. That’s why it is important for owners to understand the trade-offs and risks that come with such operation.

  • Carbon Offsets: Scam, Not Salvation

    In the battle against climate change, most media attention has been paid to "cap-and-trade" schemes, under which countries set upper limits ("caps") on greenhouse gas (GHG) emissions and allow companies to sell ("trade") unused emissions rights to other firms. However, there is a second path to global warming salvation: Carbon offsets.

  • Polymeric Solution for Pump Cavitation

    Cavitation is defined as the phenomenon of forming and imploding vapor bubbles in a region where the pressure of the liquid falls below its vapor pressure. Cavitation and the resultant damage can occur in any fluid-handling equipment, especially in pumps. Technological advances in industrial protective coatings and composite repair materials have made it possible to repair pumps operating in a cavitating environment rather than simply replacing them after damage occurs. Cavitation-resistant (CR) elastomers have the ability to retain adhesion under long-term immersion, dissipate energy created under high-intensity cavitation, and provide outstanding resistance to corrosion and other forms of erosion.

  • Adjustable Speed Direct Drive Cooling Tower Motor

    Arkansas-based Baldor Electric Co. launched a new direct drive technology for the cooling tower industry that improves reliability, reduces maintenance, runs quieter, and saves energy. The Adjustable Speed Direct Drive Cooling Tower Motor combines technologies of the field-proven laminated finned frame RPM AC motor with a high-performance permanent magnet salient pole rotor design, and it […]

  • Improved Coal Dust Collector

    Martin Engineering has introduced an upgraded version of the MARTIN Insertable Dust Collector, which features improved filters and a smaller footprint to control airborne coal dust at belt conveyor loading points and other bulk material-handling operations. Insertable dust collectors are typically installed to reduce problems associated with central baghouse collection systems, including long runs of […]

  • Politics Trump Scientific Integrity

    In their recent endangerment finding draft technical support document (TSD), scientists at the U.S. Environmental Protection Agency (EPA) conclude that carbon dioxide emissions are a public health hazard and should be regulated under the Clean Air Act. Federal law requires that regulations be based on scientific information that is "accurate, clear, complete, and unbiased"; the most recent available; and collected by the "best available methods." The EPA’s TSD on carbon emissions violates all of these requirements.

  • POWER Digest (August 2009)

    News items of interest to power industry professionals.

  • The 7,000-Foot Challenge

    The Springerville Generating Station in Springerville, Ariz. (Unit 3 was POWER’s 2006 Plant of the Year), uses two lined ponds to hold water collected from its cooling towers. With the construction of Unit 4, the plant’s owner, Salt River Project (SRP), one of Arizona’s largest utilities, wanted to increase the capacity of pumps used to move effluent from one pond to another to avoid the possibility of overflow. SRP engineers wondered if using a vertical turbine pump on a floating barge would improve managing the water levels in the two ponds.

  • Old Challenges Persist in Impeding Renewable Energy Goals

    In June, California issued yet another report on renewable energy. This one, a joint effort of the California Public Utilities Commission (CPUC) and the California Energy Commission (CEC), analyzes implementation issues related to increasing the state’s renewables portfolio standard (RPS) to 33% by 2020. The report is the latest in an increasingly growing number of assessments, policy pronouncements, and administrative decisions examining renewable energy and climate change issues.

  • City of Springfield’s CWLP Dallman 4 Earns POWER’s Highest Honor

    City Water, Light & Power (CWLP), the municipal utilities agency of the City of Springfield, Ill., determined that coal-fired generation was its best alternative for providing long-term reliable and economic electricity to the city’s residents. For negotiating an unprecedented agreement with the Sierra Club that allowed the project to move forward, for choosing the latest in coal-fired technology and air quality control systems as the foundation for the city’s comprehensive energy policy, and for assembling a tightly integrated team that completed the project well before the contractual deadline and under budget, CWLP’s Dallman 4 is awarded POWER magazine’s 2009 Plant of the Year award.

  • Help Build the Global Energy Observatory

    How would you like to be able to access data on all the power plants in the world and all of their performance metrics, analyze that data, and map it? Those abilities are part of the vision behind the Global Energy Observatory (GEO), an OpenModel website that serves as a wiki for global energy data.

  • 2009 Marmaduke Award: The Hague Repowering Project Upgrades CHP System, Preserves Historic Building

    The Hague’s century-old power plant, now owned by E.ON, provides electricity to the local grid and thermal energy for the city’s district heating system. Poor performance from the plant’s 25-year-old equipment and The Hague’s wish to become a carbon-neutral city by 2010 gave birth to the idea of repowering the existing plant. For protecting a historic building while investing in low-emissions electricity generation, achieving improved plant efficiency and reliability, and accelerating the project so the plant could be back online for the next heating season, The Hague Repowering Project is the winner of POWER’s 2009 Marmaduke Award for excellence in O&M. The award is named for Marmaduke Surfaceblow, the fictional marine engineer and plant troubleshooter par excellence.

  • Revived FutureGen Faces Renewed Funding Obstacles

    A little more than a year after the Bush administration abruptly withdrew its support for the FutureGen project, the Department of Energy has again announced it will back the proposed Illinois gasified coal power plant and carbon capture initiative. Though the 275-MW project may be different in technical aspects — it will be initially designed for 60% carbon capture, not 90%, and gasify only Illinois Basin Coal (Figure 2) — it is still riddled with many of same funding problems. Making matters worse, it may have been revived too late: Since the DOE withdrew its support, several major carbon capture and storage (CCS) projects and alliances have sprouted in the U.S., and these could give FutureGen a run for its money.

  • USEC: Is the Enrichment Company Done?

    By Kennedy Maize USEC, the Bethesda, Md., uranium enrichment company that took over the Department of Energy’s enrichment program in 1992 is claiming that the Obama administration is reneging on promises to provide $2 billion in loan guarantees for the company’s “advanced” centrifuge enrichment plan, made during the 2008 presidential campaign. DOE’s decision to withhold […]

  • TVA OIG Report: Kingston Coal Spill Caused by Bad Management Practices

    A report released on Tuesday by the Tennessee Valley Authority’s (TVA’s) Office of the Inspector General (OIG) lambasts the publically owned company’s management practices. It says that the breach of a 50-year-old coal ash storage pond and subsequent ash spill at its Kingston Fossil Plant in Roane County, Tenn., last December could have been prevented if TVA had heeded 20 years of warnings and taken recommended corrective actions.

  • UK Switches on "World’s Largest" Oxyfuel CCS Pilot Plant

    Doosan Babcock Energy on Friday switched on what it is calling the “world’s largest” oxyfuel combustion carbon capture and storage (CCS) facility in Renfrew, Scotland. The facility will demonstrate that company’s OxyCoal Clean Combustion system for the first time on a full-size 40-MW burner.

  • DOE’s Denial of Loan Guarantee Forces USEC to Demobilize Enrichment Plant

    The Department of Energy (DOE) on Tuesday said it had encouraged USEC to withdraw its application for $2 billion in loan guarantee funding for the American Centrifuge Plant in Piketon, Ohio. The decision has forced the nation’s only domestic uranium enrichment firm to begin demobilizing the project.

  • Bill to Manage CCS Risk Introduced in U.S. Senate

    U.S. Senators Bob Casey (D-Penn.) and Mike Enzi (R-Wyo.) last week introduced a bill to encourage the commercial deployment of carbon capture and storage (CCS) technology by setting up a program for managing financial risk or liability of the long-term storage of the greenhouse gas.

  • Bruce Power Scraps Plans for Two New Ontario Nuke Plants

    Canada’s only private nuclear generating company, Bruce Power, plans to withdraw its application to build two new nuclear power plants in Ontario, opting instead to refurbish existing reactors. The decisions reflect the “realities of the market” and are unique to Ontario, the company said last week.

  • AWEA: U.S. Wind Energy Growth Slows Amid Economic Concerns

    New wind energy installations in the U.S. plunged to just 1,210 MW in the second quarter of 2009—falling to less than half of the 2,790 MW of new installations reported for the first quarter of this year—according to the American Wind Energy Association (AWEA).

  • Global Warming: It’s a Regional Zero-Sum Game

    Why Americans have tuned out global-warming hype, and why they are right to do so.

  • Power to Your People, Right On

    Educating a workforce about the concept of business acumen—going beyond financial literacy and developing a true understanding of what it takes for an organization to make money—is the key to producing real, bottom-line results.

  • Science, Belief, and Rational Debate

    What does science teach us about how to test our ideas about the world around us? How do hypotheses differ from theory, and what does that distinction mean?

  • Planning for Crisis Communications

    Does your business have a communications plan to deal with a catastrophe? The lack of one could cost your business its corporate reputation and the value of your shares on the market.

  • Heritage Foundation: Nuclear Supply Chains Key to Revival

    If a nuclear revival is to happen, it will depend on understanding the global nature of the supply chains that support it, argues a U.S. conservative think tank.

  • The 100-Nukes Solution

    Does the House Republicans’ alternative to the Democratic energy plan—with the GOP’s proposal for 100 new nuclear plants in the next 20 years—pass the straight-faced test? Not even close, and the GOP knows it.