POWER
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O&M
High-Performance Oil Reduces Varnish and Saves Money for Gas Turbine Power Plant
Varnish buildup in oil systems and components can degrade performance and cause erratic valve operation. Some experts have conducted research and formulated new lubricants that could help solve those problems. One such oil proved highly successful during a five-year run at a gas turbine power plant. By eliminating the need for oil changes and valve […]
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O&M
Using Rotor-In Major Inspections to Shorten Outages and Drive Safety
Today, some F-class operators continue to opt for rotor-out major inspections, which are cumbersome and inefficient. They involve complex lifts and moves of the rotor, as well as the need for substantial space
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Legal & Regulatory
The Future of Clean Energy Is Dependent on States and Utilities
U.S. coal production in 2016 reached its lowest level since 1978. However, in its Annual Energy Outlook published in February 2017, the U.S. Energy Information Administration (EIA) expects coal-fired power to
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Connected Plant
The Future Is Now: Connected Power Plants Are Here
New technology is being used throughout the power industry to improve plant efficiency, predict trouble with degrading equipment, forecast weather trends, and train workers. A recent conference hosted by POWER
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O&M
Reducing Cycling Damage to Combined Cycle Steam Turbines
Cycling a combined cycle plant places additional stresses on all equipment, but the impacts extend beyond the gas turbine and heat recovery steam generator. Plant owners and managers are beginning to see
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Connected Plant
Facilitating Predictive Maintenance of Electrical Assets with Pervasive Sensing Strategies
Continuous condition-based monitoring of electrical conductors and insulation is an effective way to reduce required plant maintenance activities, cut operating costs, and prevent unplanned shutdowns
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O&M
Enhanced Boiler Defense Strategies for an Aging Coal Fleet
Cyclic operating conditions can be problematic for many coal-fired power plants that were designed to run as baseload units. Implementing a combustion and boiler performance management program can help ensure
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O&M
Strategies for Small Hydro Upgrades
Small hydro is becoming big business as ongoing technological advances make more small sites economic to exploit. Older plants can also see substantial output and efficiency gains by upgrading from decades-old
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O&M
Simplify Outage Planning to Increase Collaboration
Many elaborate planning tools are available to help managers prepare for power plant outages. However, there is something to be said for keeping things simple. One modest tool that some NRG Energy facilities
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O&M
The Oft-Neglected Isolated Phase Bus Deserves Your Attention
A power plant’s isolated phase bus is generally reliable, and therefore, maintenance is frequently overlooked. However, the system is too important to neglect. Assessing its condition during minor outages
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Environmental
Whether Man-Made or Not, Global Warming Is a Problem
I recently bought a house in southwestern Florida, but not without some reservations. Don’t get me wrong, I love the palm trees and sandy beaches, but what worries me is the area’s sea-level trend, as
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Connected Plant
Cybersecurity: Keeping Current on a Moving Target
What it means to have a secure energy generating facility has changed in recent years as the threat of cyberattacks grows. As the nation’s energy sector becomes increasingly interconnected, it is more
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O&M
Who Has the World’s Most Efficient Coal Power Plant Fleet?
A comparison of coal power plant fleets from China, the European Union (EU), Japan, and the U.S. by the International Energy Agency’s (IEA’s) Clean Coal Centre yields surprising insights into efforts these
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Legal & Regulatory
U.S. Nuclear: From Hope to Despair
A decade ago, the annual Platts nuclear energy conference in Washington was brimming with optimism over a coming “nuclear renaissance,” as licensing requests poured into the Nuclear Regulatory Commission
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Renewables
POWER Digest (April 2017)
Russia Marks Milestone with Commercial Operation of Third-Generation Reactor. After nearly a decade of construction, the first advanced third-generation VVER-1200 nuclear reactor began commercial operation on
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Commentary
Reports of the Electric Grid’s Death Have Been Greatly Exaggerated
There have been numerous pronouncements recently about the upcoming demise of the bulk power grid as consumers are projected to move toward decentralized green energy sources. We don’t believe that the end
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Coal
China’s Nuclear Expansion Mired in Overcapacity
China has brought 24 of its 36 operating nuclear reactors online at a breakneck pace since 2010, but there are signs it may roll out future plants that are still under construction more slowly, owing in part
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IIOT Power
New Approaches for Transformer Operation and Maintenance
Technology advancements and new regulatory requirements could reshape how power plant owners operate and maintain large power transformers. Experts outline emerging strategies and call attention to overlooked
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Nuclear
India Gears Up to Expand Fast Breeder Reactor Fleet
India’s Department of Atomic Energy, the entity responsible for research, construction, and operation of the country’s nuclear power reactors, will build two prototype fast-breeder reactors (PFBRs) at
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Renewables
A Wrap-Up of the Energy Union’s Second Year
Two years after the Energy Union was launched as a strategy to help the European Union (EU) provide secure, sustainable, competitive, and affordable energy, the 28-member bloc is seeing a precipitous drop in
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O&M
Dissimilar-Metal Weld Is a Misnomer
Most combined cycle professionals understand that a joint between grade 91 steel and an austenitic stainless steel is considered a dissimilar-metal weld. For that reason, it requires special welding
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O&M
Cooling Towers: Efficiency Waiting to Happen
Cooling towers serve the vital role of cooling water for power plant heat exchange equipment. Sustaining excellent system performance is important because a one-degree increase in water temperature can cause a 2% increase in energy usage. Proper maintenance and a few upgrades could improve a cooling tower’s efficiency, while also saving water in the process. […]
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Water
Using Reclaimed Water in Power Plant Cooling Applications
Using reclaimed water as a makeup supply for cooling tower systems has become a popular option for reducing impacts on local water resources, but it comes with its own challenges because of its unique
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Coal
Reclaimed Water Reduces Stress on Freshwater Supplies
Power generation need not be another source of strain on diminishing freshwater resources. Well-established water reclamation technologies are enabling producers to conserve resources—and money. Meeting the
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Finance
New and Improved Insurance Offerings Provide Power Plants with More Options
Risk is inherent in all businesses, but power plants face unique perils that require the right protection. Property and casualty insurance may not be enough; equipment breakdown, business interruption, weather risk transfer, and cyber coverage are just a few examples of insurance that may also be worth considering. The right coverage could mean the difference […]
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Commentary
The Changing of the Guard
There’s a new sheriff in town—Washington, D.C., that is. President Donald Trump has taken the reins from Barack Obama, and he’s come out with guns blazing. It’s true—the new administration has wasted little time shaking things up since taking office. While hundreds, if not thousands, of pages have been written by the media about President […]
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Renewables
A 100% Renewable Grid: Pipe Dream or Holy Grail?
The boom in renewable energy, spurred by dramatically falling costs, has led some experts and political figures to begin talking seriously about what was once science fiction: A world powered entirely by renewable generation. But is it truly feasible or economic? One series of studies suggests it is—with some important caveats. In the first half […]
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Renewables
Big Winds for Big Offshore Wind Turbines From Siemens, MHI Vestas
Siemens has installed the prototype of its towering 8-MW offshore direct-drive wind turbine at a national test center in Østerild, Denmark, marking the company’s foray into the global race to develop mega–wind turbines. The new offshore turbine was installed on a steel tower at a hub height of 120 meters (m) in late January (Figure […]
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Commentary
Progress on GHG Emissions Reduction in Canada’s Electricity Sector
Reducing emissions from the electricity sector continues as a primary transformational goal of government policy-makers, and the private and public companies managing electricity generation in Canada. Impressive progress has been made. National Overview Emissions from electricity generation made up just 11% of Canada’s total in 2014. Over 79% of generation is non-emitting: hydropower (63%), nuclear […]