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  • Is Coal a Fuel of the Future?

    Few reasonable people can dispute that the U.S. Environmental Protection Agency (EPA) is conducting a war against coal. If you doubt that conclusion, just look at the large number of new regulations affecting coal-fired power plants that have been proposed in rapid-fire succession by the EPA.

  • POWER Digest

    Siemens Gets $1 Billion Order to Build Gas Power Plants in Thailand. Siemens on Aug. 17 said it received two orders worth $1 billion from Thailand for the engineering, procurement, and construction (EPC) of combined cycle power plants. The firm will build Chana Block 2 in the province of Songkhla and Wang Noi Block 4 […]

  • Top Plant: Plum Point Energy Station Mississippi County, Arkansas

    The new 665-MW Plum Point Energy Station is energizing the Arkansas Delta, an area that is ready to supplement its farming heritage by promoting new jobs that offer residents a higher standard of living. But first, the plant’s construction team had to overcome a number of significant challenges related to building a facility in the New Madrid fault zone.

  • Shaping America’s Energy Policy

    America’s energy and environmental policies have been dysfunctional for decades. Obsessively moving toward “green” has made America weaker and has damaged our economy. During POWER’ s first 100 years (1882–1982), the magazine chronicled the U.S. growing into the strongest industrialized economy in the world. America designed and built products for the world using raw materials and energy from within our own borders. Now we are in a recession and the U.S. Environmental Protection Agency’s (EPA) “War on Coal” continues. Does anyone get the connection? Ever-worsening regulations are killing jobs by the thousands.

  • Recent Blackout Highlights Nation’s Rickety Power Grid

    Experts say the cascading blackout  that put millions of Westerners in the dark in early September was no surprise: Major power outages have more than doubled in the last decade

  • THE BIG PICTURE: A Solar Switch

    The plummeting cost of photovoltaic (PV) panels—resulting from lower costs for high-grade silicon and advancements in thin-film technology, solar storage, and electronic control technologies—has a slew of firms rethinking concentrating solar power (CSP) projects. Although there is a CSP project pipeline (including both CSP and concentrating PV) of more than 9 GW in the U.S., […]

  • Top Plant: St. Johns River Power Park, Jacksonville, Florida

    A recent NOx reduction project added selective catalytic reduction equipment to each of the two 640-MW, mixed coal–fired units at the St. Johns River Power Park. The selection of precisely the right catalyst required extensive long-term testing with “mini” reactors. Once the right catalyst formula was identified, the actual retrofit project was completed in a mere 23 months, an aggressive project schedule that required overcoming many design and construction challenges.

  • EPA Indefinitely Delays Power Plant Greenhouse Gas Rules

    Just two weeks after the Environmental Protection Agency (EPA) withdrew its smog rule, the agency confirmed it would not meet a Sept. 30, 2011, deadline for issuing proposed New Source Performance Standards (NSPS) to limit greenhouse gas emissions from new, modified, and existing power plants. The agency did not specify a new deadline for proposing the rule.

  • JEA Increases Power Output Through CFB Improvements

    JEA’s Northside Generating Station in Jacksonville, Fla., Units 1 and 2 were built in 1966 and 1972, respectively, although the Unit 2 boiler had not operated since 1983. Both were heavy oil– and natural gas–fired steam units rated at about 300 MW. The utility “repowered” those two units by removing the old boilers and adding new circulating fluidized bed (CFB) boilers (Figure 1) that entered service in 2002. At that time, they were the world’s two largest CFBs, and the plant won POWER’ s Plant of the Year Award.

  • CWA 316(b) Update: Fish Guidance and Protection

    The U.S. Environmental Protection Agency (EPA) has proposed new Clean Water Act section 316(b) regulations for once-through cooling water intake structures. Comments on the proposed rules closed in August, and a final rule is expected mid-2012. The EPA estimates that at least half of the power plants using once-through cooling will be required to implement a best technology available solution in coming years. That typically means barriers and screens, but you may want to consider other options.

  • Obama Shelves Smog Rule on Concerns About Regulatory Burdens, Uncertainty

    President Obama has scuttled the Environmental Protection Agency’s (EPA’s) smog rule, saying that he had underscored the importance of reducing regulatory burdens and uncertainty. The decision has dealt a blow to environmental groups—which are contemplating legal action—and won the Democratic president praise from Republicans and industry groups.

  • Applying Acoustic Pulse Reflectometry in a Geothermal Plant

    Acoustic pulse reflectometry (APR) is a tube inspection method that has been gradually gaining acceptance as a tool for heat exchanger inspection. Different types of heat exchangers operating in different operating environments have different failure mechanisms, making some of them more suited than others for inspection by APR. Finned tube heat exchangers are a typical example of heat exchangers particularly conducive to APR inspection.

  • Fundamentals of Zero Liquid Discharge System Design

    Power plants often produce wastewaters that contain salts, such as those from wet gas scrubbing, coal pile run-off, and leachate from gypsum stacks. Evaporation of those liquid wastes in a modern zero liquid discharge system produces clean water that is recycled into the plant plus a solid product suitable for landfill disposal. Here are the options to consider.

  • Pulverizers 101: Part II

    Pulverizers prepare the raw fuel by grinding it to a desired fineness and mixing it with the just the right amount of air before sending the mixture to boiler burners for combustion. In Part I of this three-part report, we examined the essentials of pulverizer design and performance.  In the second part, we discuss the importance of fuel fineness. In the final article, we will discuss the importance of air and fuel measurement.

  • New EPA Rule Calls for Flexibility

    Quin Shea, vice president, environment for the Edison Electric Institute, comments on the Utility MACT rule that is expected to be finalized in November.

  • Improved Coal Fineness Improves Performance, Reduces Emissions

    Utilizing engineering ingenuity and today’s developing computational fluid dynamics tools, a new classifier design is now available that significantly improves fineness from pulverizers without the heavy costs associated with dynamic classification or any downsides on pulverizer capacities, maintenance, and parasitic power.  Instead, operational flexibility and improved emission control options are enhanced.

  • An SCR Can Provide Mercury Removal Co-Benefits

    Complying with various state (and expected federal) requirements governing mercury removal from the stack gas of coal-fired power plants has usually been achieved by adding an expensive activated carbon injection system. Now there is another alternative: a catalyst that features higher mercury oxidization activity than conventional catalysts while maintaining the same SO2 to SO3 conversion activity—and all at a lower operating cost. Full-scale installations are under way at several Southern Company plants that burn a variety of coals.

  • Tales of Adventures in Foreign Investment

    By Kennedy Maize Washington, D.C., September 29, 2011 — A story in the Wall Street Journal recently – about a Chinese wind firm pirating U.S.-owned software that controls wind turbines – reminded me of how, in the 1980s, China stole a coal mine from legendary U.S.-Russian oilman Armand Hammer. The moral of the story, for […]

  • New NFPA Standard Bans Gas Blow Pipe Cleaning Procedure

    A new standard devised by the National Fire Protection Association (NFPA) in response to the February 2010 Kleen Energy Systems power plant explosion prohibits the use of flammable gas as a cleaning agent for cleaning the interior of pipes—the practice thought to have caused the blast that killed six workers in Middletown, Conn., and injured nearly 50 others.

  • EPA Inspector General: Key Endangerment Finding Document Needed More Review

    In a major development, the U.S. Environmental Protection Agency’s (EPA’s) Office of the Inspector General (IG) today said a key document underpinning the agency’s so-called “endangerment finding”—the determination that greenhouse gases endanger public health and welfare and legally supports agency rules that regulate carbon dioxide emissions—required a “more rigorous peer review than occurred.”

  • DOE Finalizes $737 M Solar Loan Guarantee Amid Solyndra Investigation

    Just days before the Energy Department’s advanced energy loan guarantee program funded under 2009 stimulus law is set to expire—and amid an investigation of Solyndra, the California-based solar manufacturer that received the Obama administration’s first loan guarantee—the DOE today finalized a $737 million loan guarantee for the development of a 110-MW concentrating solar power tower facility in Nevada.

  • DOE Finalizes Partial Guarantee for Geothermal Facilities in Nevada

    The DOE on Friday finalized a partial guarantee for up to a $350 million loan guarantee to support a geothermal power project sponsored by Ormat Nevada. The 113-MW project comprises three geothermal power facilities and could increase Nevada’s geothermal power production by nearly 25% the DOE said.

  • Partial Loan Guarantee for New Hampshire Wind Farm

    The renewed flurry of loan guarantees from the DOE this past week included a finalized partial guarantee for a $168.9 million loan to Granite Reliable Power for a 99-MW wind generation project that is expected to become New Hampshire’s largest wind farm.

  • Texas IGCC Project with Carbon Capture to Get Federal Cost-Shared Funding

    The Energy Department on Tuesday issued a Record of Decision (ROD) that could allow $450 million of federal funding to be used to help build Summit Texas Clean Eneryg’s 400-MW integrated gasification combined cycle (IGCC) plant planned for construction just west of Midland-Odessa,Texas.

  • Firms Get $500,000 Federal Grant to Seek Offshore Wind Power Cost Reductions

    Dominion, the National Renewable Energy Laboratory (NREL), Virginia Tech, Alstom Power, and maritime engineering firm Moffatt & Nichol last week received a two-year $500,000 grant from the DOE to seek out ways to reduce the cost of offshore wind generation by at least 25%.

  • Progress Energy to Shut Down First of Several Coal-Generating Units

    Progress Energy Carolinas will officially shut down its 177-MW coal-fired W.H. Weatherspoon Power Plant near Lumberton, N.C., at the end of the month—the first such retirement under the utility’s fleet-modernization program that includes disassembly of nearly 30% of the firm’s coal generating fleet in North Carolina.

  • Guest Blog: At CIA, Climate Change is a Secret

    By Steven Aftergood Updated below When the Central Intelligence Agency established a Center on Climate Change and National Security in 2009, it drew fierce opposition from congressional Republicans who disputed the need for an intelligence initiative on this topic.  But now there is a different, and possibly better, reason to doubt the value of the Center:  It […]

  • House to Vote on Amendment to Delay EPA Power Plant Rules

    The U.S. House of Representatives could by Friday vote on a measure that could delay the Environmental Protection Agency’s (EPA’s) implementation of the Cross-State Air Pollution Rule (CSAPR) and the recently proposed utility MACT rule by more than a year.

  • EPA Indefinitely Delays Power Plant Greenhouse Gas Rules

    Just two weeks after the Environmental Protection Agency (EPA) withdrew its smog rule, the agency on Thursday confirmed it would not meet a Sept. 30, 2011, deadline for issuing proposed New Source Performance Standards (NSPS) to limit greenhouse gas emissions from new, modified, and existing power plants. The agency did not specify a new deadline for proposing the rule.

  • Kansas Sues EPA on CSAPR Rule

    Kansas on Monday filed a lawsuit against the Environmental Protection Agency (EPA), challenging new regulations that the state says will require utilities to invest hundreds of millions of dollars in new emissions control equipment before Jan. 1, 2012— a timeline the state’s utilities say is impossible to meet