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News
New England Grid Faces Myriad Challenges Amid Changing Power Sector Landscape
An analysis released by ISO New England on Thursday identifies several challenges that could dramatically change New England’s grid, including the retirement of generators and the integration of renewable resources.
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News
PPL to Build New Line, Substations in Pennsylvania
PPL Electric Utilities on Tuesday said it would build 57 miles of a new 230-kV power line from the Wilkes-Barre area in Pennsylvania to an area west of Hawley, Wayne County, as well as three new substations to improve service for homes and businesses in northeast Pennsylvania and the Poconos.
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News
Consultancy Group Downgrades Coal Plant Retirement Projections
ICF International, a consultancy group that earlier this year had predicted 68 GW of coal-fired power plants could retire by 2030 as a result of finalized and proposed regulations from the Environmental Protection Agency (EPA), on Monday downgraded its retirement projections to 50 GW.
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General
Guest Blog: Obama Administration’s Electric Transmission Announcement
By Carl Zichella Oct. 5, 2011 — The Obama administration’s Rapid Response Team for Transmission (RRTT), today announced a plan to accelerate the permitting and construction of seven transmission lines that are forecast to create thousands of operational and construction jobs. These projects are intended to serve as pilot demonstrations of streamlined federal permitting and […]
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News
DOE Finalizes Seven Loan Guarantees Before Program Deadline
Hours before the Department of Energy’s (DOE’s) controversial advanced energy loan guarantee program (funded under the 2009 American Recovery and Reinvestment Act) expired on Friday, the agency finalized seven loan guarantees totaling more than $5.9 billion. Projects include solar power facilities in California, Nevada, and Arizona, and a bioenergy project in Kansas.
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News
DOE Grants Push Energy Storage, Renewables Integration
Sixty projects in 25 states were awarded a total of $156 million on Thursday under the Department of Energy’s Advanced Research Projects Agency-Energy (ARPA-E) agency. They focus on accelerating innovations in clean technology while increasing America’s competitiveness in rare earth alternatives and breakthroughs in biofuels, thermal storage, grid controls, and solar power electronics.
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News
Ameren to Shutter Two Ill. Coal Facilities on CSAPR Cost Concerns
Ameren Energy Resources (AER) Co. on Tuesday announced it would shutter its coal- and oil-fired Meredosia and Hutsonville energy centers in Illinois by 2011, citing concerns about rising costs related to the compliance of the Environmental Protection Agency’s (EPA’s) Cross-State Air Pollution Rule (CSAPR).
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News
White House Likely to Veto Bills Delaying CSAPR, Boiler Rules
Just weeks ago, President Obama signaled he would veto the TRAIN Act—a bill that could indefinitely delay implementation of the Cross-State Air Pollution and the utility MACT rules. This week, the White House said that it “strongly opposed” two bills that would delay the compliance period for reducing pollution from industrial boilers, solid waste incinerators, and cement plants.
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News
California Supreme Court Clears Way for Cap-and-Trade Rulemaking
California’s Supreme Court last week gave the state’s Air Resources Board (ARB) the green light to proceed with a statewide cap-and-trade program that seeks to cut California’s greenhouse gas emissions to 1990 levels by 2020.
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News
NRC Extends Bellefonte Construction Permit, Issues Conditions for North Anna Restart
The Nuclear Regulatory Commission (NRC) on Friday extended a construction permit for the Tennessee Valley Authority’s (TVA’s) unfinished Unit 1 reactor at the Bellefonte site near Scottsboro, Ala. The agency last week also listed actions Dominion must take before restarting operation of the quake-hit twin-reactor North Anna nuclear power plant near Louisa, Va.
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News
Reports: Stirling Dish Maker Is Newest Casualty of PV Price Plummet
Stirling Energy Systems, the Scottsdale, Ariz., maker of a reflective dish that concentrates sunlight onto a Stirling engine, has reportedly filed for Chapter 7 bankruptcy—making it the fourth solar company to fall this year amid the plummeting price of solar photovoltaic (PV) panels.
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Hydro
Hydro Reservoir GHG Emissions Lower Than Estimated
A new analysis of 85 hydroelectric reservoirs distributed around the world suggests that these systems emit about 48 million metric tons of carbon annually. That figure is much lower than earlier estimates of 64 million metric tons that were based on studies relying on more limited data and which cautioned that reservoirs of all types […]
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Coal
Top Plant: Masinloc Power Plant, Zambales Province, Philippines
In April 2008, AES Philippines purchased the Masinloc coal-fired power plant in Zambales Province in the Luzon region. Originally constructed in 1998 as a two-unit, 600-MW plant, the facility uses coal from a variety of sources in the Pacific Rim. After AES finished overhauling much of its equipment, the expanded 660-MW (gross) plant’s availability increased from 48% to 74%, which enabled net electricity production to jump by 129% by 2010.
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News
Nut, Bolt, and Flange Face Corrosion Protection
Advance Products & Systems’ new Kleerband Flange Protectors and Radolid Protection caps protect bolts, nuts, and flange faces on raised-face or full-face flanges in conditions where extreme corrosion occurs, such as at gas plants, pump stations, and above- and below- ground installations. Kleerband is a patented transparent polymer band with grease injection fittings and a […]
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Commentary
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.
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News
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 […]
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Coal
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.
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Commentary
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.
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Commentary
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
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Solar
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., […]
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Coal
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.
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Coal
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.
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O&M
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.
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Coal
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.
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Coal
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.
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O&M
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.
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Coal
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.
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O&M
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.
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Legal & Regulatory
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.
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O&M
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.