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Commentary
Put the REINS on EPA
The "Regulations from the Executive in Need of Scrutiny" Act could put the kibosh on the EPA’s greenhouse gas regulatory surge.
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Coal
Turning Flue Gas Carbon into a Raw Material for Manufacturing
Bayer in February brought online a pilot plant at Chempark Leverkusen, Germany, to recycle carbon dioxide (CO2) scrubbed from the flue gas of a 1,000-MW RWE lignite-fired unit and convert it into a raw material and petroleum substitute for plastic manufacturing. The Bayer facility (Figure 4) essentially produces a chemical precursor into which CO2 is incorporated and then processed into polyurethanes that are used for many everyday items.
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News
New Digital Pressure Gauges and Calibration Pumps
Palmer Wahl Instruments Inc. has introduced a new line of digital pressure test gauges that includes the Palmer 3PC Auto Ranging Digital Pressure Test Gauge (shown here), which spans a pressure range of vacuum to 3,000 psi. Featuring an accuracy of 0.1%, and with the capacity to read nine different units of measure, the 3PC […]
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Business
KEMA Opens Lab to Test Energy Storage Performance
Dutch energy consulting firm KEMA in February opened a new laboratory in Chalfont, Pa., to test and verify emerging utility-scale energy storage systems.
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News
Miniature Triaxial Accelerometer
Kistler announced the North American market introduction of the Type 8763B, a miniature IEPE triaxial accelerometer with voltage output. The accelerometer offers simultaneous shock and vibration measurements on three mutually perpendicular axes with optional TEDS capabilities (per IEEE 1451.4) to meet high-performance requirements. Available in six unique models with measurement ranges from ±50 g to […]
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Business
POWER Digest (April 2011)
China Inaugurates 660-kV DC Line. The China Power Grid Co. on Feb. 28 began transmitting power through a 660-kV direct current power transmission link that runs from northwest China’s Ningxia Hui Autonomous Region. Part of China’s west-east power transmission program, the 10.4 billion yuan (US$1.58 billion) project runs 1,333 kilometers through five provinces and regions […]
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News
High-Level Construction Glove
Ergodyne has launched the ProFlex 750 At-Heights Construction Glove. The glove delivers the comfort, durability, and protection required for climbing as well as the fit and dexterity needed to get the job done right in the world’s highest work zones, the company claims. Designed to reduce fatigue and discomfort while climbing, the 750 At-Heights Construction […]
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O&M
Predictive Maintenance That Works, Part I
This year’s series will focus on predictive maintenance (PdM), also known as condition-based maintenance.
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News
Enhanced Compact Loaders
Bobcat’s launch of the new 700 Series compact loaders adds three new models to the company’s family of new-generation loaders. The new loaders, all with vertical lift path design, offer several new features and enhancements that significantly extend the range of applications for compact loaders, Bobcats says. The 700 Series comprises a new skid-steer loader […]
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Wind
Horizontal or Vertical? The Question for Wind Turbine Axis Orientation
This web supplement to "Changing Winds: The Evolving Wind Turbine" examines the debate over the merits of the two most common wind turbine axis orientations.
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O&M
Plan for the Worst: Insurance Insights
Imagine this scenario: Two separate power plants experience a bowing problem greater than 18 mils with a steam-turbine rotor. The turbines are from the same manufacturer and several repair options are reviewed. Management at both plants selects an innovative approach involving removal of a substantial amount of material, which is replaced with weld overlay and then machined to correct diameters and centerline of the balance piston area. One plant’s insurance company covers the repair, the other plant’s doesn’t. Why?
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Commentary
Electricity: A Fuel of the Future
The recent tensions in the Middle East and their impact on oil and gasoline prices remind us that the U.S. remains heavily dependent on foreign nations—some of them unstable—to meet many of our energy needs. Of course, oil will continue to have an important place in our energy mix, and expanding our domestic reserves makes sense.
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Legal & Regulatory
Flawed Rules May Sink Small Calif. Renewable Projects
In December 2010, the California Public Utilities Commission (CPUC) issued a decision with considerable fanfare that was intended to provide for the development of 1,000 MW of additional new renewable generation and provide California’s large investor-owned utilities (IOUs) with additional flexibility in complying with California’s Renewables Portfolio Standard (RPS) requirements. Unfortunately, it is likely to have the opposite effect.
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Gas
Sendai Plant Boosts Efficiency and Cuts Emissions
Located on the scenic Japanese coastline, Tohoku Electric Power Co., Inc.’s new 446-MW Sendai Thermal Power Station Unit 4 is a combined-cycle plant that replaces three 175-MW coal-fired units that had been in operation for more than 50 years. The new plant features the first application of MHI’s 50-Hz M701F4 gas turbine, which provides a thermal efficiency boost from the old plant’s 43% to more than 58%. This change substantially reduces CO2 emissions.
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Solar
Energy Storage Enables Just-in-Time Generation
One of the main criticisms of renewable energy facilities is that they are unable to dispatch electricity when it’s needed. The great game-changer is low-cost energy storage, which would enable renewable energy production to be stored and rapidly released when needed. Here are seven promising distributed energy storage technologies that could be commercialized in the near future.
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Commentary
Frisbees to Flatulence
I recently outlined the top four regulatory obstacles facing existing U.S. coal-fired power plants in the coming years. That list, although not comprehensive, covered issues that owners of coal plants should be concerned about in the near term. However, in the long term, there is one regulatory development that dwarfs all others.
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Wind
Changing Winds: The Evolving Wind Turbine
As early as the first century A.D., wind energy was harnessed for practical purposes. Since then, turbine designs have come a long way from the archetypal post-mounted four-bladed devices. Today’s ubiquitous three-bladed designs will soon be evolving in many unexpected directions.
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Commentary
Australians Say "No" to Carbon Tax
Australian prime minister Julia Gillard invited Jill Duggan, of the European Commission Directorate General of Climate Action and the UK government’s head of international emissions trading, to help bolster Gillard’s push for support of a carbon tax early in March. However, when interviewed on a morning show, Duggan was unable to estimate either the cost or the benefits of the UK’s program. In fact, the interview was a complete disaster.
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Solar
The Smart Grid and Distributed Generation: Better Together
Electricity grids are slowly getting smarter. Simultaneously, the use of distributed generation is increasing. Though smart grid advocates tout the ability of a smarter grid to enable greater deployment of distributed resources, the benefits could flow in both directions.
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O&M
Condenser Performance Improvement Through Innovative Cleaning and Leak Detection Technologies
One of the largest returns on investment a plant can achieve is the improved condenser performance that results from an effective condenser tube cleaning. Perhaps it is time to reevaluate your choice of cleaning technologies, establish an optimal cleaning schedule, and add routine air and water in-leakage surveys to your plant’s maintenance schedule.
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Coal
Biomass Cofiring: A Promising New Generation Option
Biomass cofiring has the potential to cut emissions from coal-fueled generation without substantially increasing costs or infrastructure investments. Research shows that when implemented at relatively low biomass-to-coal ratios, energy consumption, solid waste generation, and emissions are all reduced. However, mixing biomass and coal does create some challenges that must be addressed.
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O&M
Respect Your Refractory
Because refractory is out of sight inside the gas flow path of a steam generator and its auxiliaries, it’s also often out of mind. That is, until the refractory fails and causes a forced outage.
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O&M
Fire Protection Options for Air-Cooled Hydroelectric Generators
Fire protection systems for air-cooled hydroelectric generators have several special requirements due to these generators’ unique geometries. This survey of options will help plant owners and operators make the best equipment selections for their plants and thereby avoid unexpected surprises.
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O&M
Power 101: Improving the Performance of Boiler Auxiliaries, Part III
Efficient boiler operation requires boiler auxiliary equipment to operate in harmony. In this third and last installment of our Power 101 series, we examine ways to decrease the auxiliary power requirements of boiler auxiliaries.
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News
Spanish Wind, Revisited
Two years ago, Spain’s fixation on renewables and “green jobs” was praised by President Obama as a success story worthy of our emulation. How is Spain doing today?
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Nuclear
Nuclear Fever Breaks
Excitement over an expected nuclear renaissance reached fever pitch over the past decade. Today, the original volume of announced projects has been sifted, leaving just a few serious ones that may match well with the level of loan guarantees recently announced as part of the president’s budget proposal. The pace of progress is slow, yet progress is almost certainly unavoidable.
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Coal
House Panel Hustles Through Bill Blocking EPA Climate Rules
In an anti-climactic markup that featured little new debate and no amendments by opposing Democrats, the House Energy and Power Subcommittee approved Republican legislation to block Obama administration action on climate change by stripping the Environmental Protection Agency of its Clean Air Act authority to regulate carbon dioxide and other greenhouse gases.
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News
EPA Proposes Cooling Water Intake Rules
Rules proposed by the Environmental Protection Agency (EPA) under Section 316(b) of the Clean Water Act on Monday call for flexible technology standards, determined on a case-by-case basis, for more than 670 power plants across the nation that pull in at least 2 million gallons per day of cooling water. The EPA said the proposal, which seeks to protect aquatic life, establishes a “common sense framework, putting a premium on public input and flexibility.”
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News
Senate to Vote on Amendment to Block EPA Climate Rules
The Senate is expected to vote on Thursday on an amendment introduced by Senate Republican Leader Mitch McConnell (R-Ky.) to small business legislation that could permanently block the Environmental Protection Agency (EPA) from promulgating climate change rules.
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News
Lawmakers Urge President to Act on EPA Rulemaking
Nearly 20 Senate Democrats asked President Obama in a letter today not to agree to spending plans passed by the GOP-controlled House last month that would block funding for the Environmental Protection Agency’s (EPA’s) implementation of greenhouse gas rules.