O&M

Drax Power Station, a 3,960-MW six-unit facility located in North Yorkshire, England, is the largest power plant in the UK. It was constructed in two stages, with the first three units completed in 1974 and

The historic winter storm that buried the Eastern U.S. in snow over the weekend shut the lights off for more than a million customers from Arkansas to Massachusetts as it downed power lines and hampered operations at some power plants. According to the Department of Energy’s Office of Electricity Delivery and Energy Reliability, at one […]

Grid resiliency has become a widely discussed topic recently. Experts have been called before congressional hearings to testify on the topic, and close calls—including a massive solar storm that missed Earth

The Electric Power Research Institute (EPRI), in conjunction with Suprock Technologies, has conducted a research project to develop and demonstrate an advanced wireless sensor technology for monitoring torque

It is true that electric motors and transformers are some of the most dependable pieces of equipment installed at power plants. They can, in many cases, withstand a high level of mistreatment while continuing

Gas-fired power is booming—even more than expected. For only the second time ever, but also the second time this year, gas generated more electricity in a month in the U.S. than coal. According to statistics

Coal pulverizers are the heart of a pulverized coal-fueled boiler. Often, the root causes of nonoptimized combustion lie with the pulverizers. Capacity; reliability; and environmental issues such as slagging

Two hyperbolic cooling towers rise 495 feet over Exelon Corp.’s Byron Generating Station about 110 miles west of Chicago, Ill. The towers help cool the two Westinghouse pressurized water reactors that are capable of generating up to 2,346 MW at the site. Like all classic wet transfer hyperbolic cooling towers (Figure 1), the Byron Generating […]

Some critters may be cute, but when jellyfish gum up power plant cooling systems; birds, rats, snakes, or squirrels cause electrical shorts; or invasive mollusk species obstruct hydropower plant pipes, losses can be steep. Here’s how some power plant operators are dealing with their critter troubles. There are countless cases of wildlife entering power plant […]

As many coal-fired power plants designed for baseload service are asked to cycle, unforeseen stresses have been introduced to boiler pressure parts. Understanding the effects and implementing mitigation strategies could prevent premature component failure and keep facilities operating reliably. On August 3, 2015, the U.S. Environmental Protection Agency finalized the Clean Power Plan, which calls […]

Creeped out and fatigued—that’s the state of many coal-fired boilers these days. Understanding failure mechanisms and suitable testing methods for identifying potential trouble can help you find problems before the problems find you. Even as the current regulatory environment pushes new power generation to utilize natural gas over other fuel sources, a significant amount of […]

Coal dust combustion events injured employees and damaged equipment at Laramie River Station in May 2013. Any dust-filled facility could consider implementing some of the plant’s corrective actions to reduce the risk of experiencing a similar incident. When Laramie River Station (LRS), near Wheatland, Wyo., was built nearly 35 years ago, it was state-of-the-art. Constructed […]

Entergy Corp.’s Palisades Power Plant returned to service on Oct. 19, following a month-long outage to implement upgrades, inspections, and safety enhancements.  The Michigan plant was shut down on Sept. 16 to begin a planned refueling outage. The company spent $58 million for upgrades and plant inspections, and $63 million for new fuel. The outage […]

Shaft collars are used as stops or locators on shafts in a wide variety of applications. There are two basic types. One uses a setscrew to lock the collar in place, while the other utilizes a clamp-type collar. Shaft Collar Designs Setscrew collars are the oldest type of shaft collar. These units function by gouging […]

Replacing blades on a wind turbine is not a simple task. Blades range from 40 to 60 meters in length and can weigh 16 tons or more. Combined with hub heights that can exceed 100 meters and locations that are, by definition, subject to prevailing winds, replacing blades becomes challenging. Add in the cost of […]

In presentations to the Federal Energy Regulatory Commission (FERC), the nation’s regional transmission organizations (RTOs) and independent system operators (ISOs) on Sept. 17 outlined measures they are taking to prevent issues if faced with extreme weather this winter.  The measures are to prevent widespread generation outages as occurred during the Jan. 6–7, 2014, polar vortex. […]

Duke Energy Indiana reached a settlement agreement with some of the state’s key consumer groups related to operating costs at its Edwardsport integrated gasification combined cycle (IGCC) coal power plant. The deal was submitted to state regulators on Sept. 18 and is subject to Indiana Utility Regulatory Commission (IURC) approval. If approved, it would resolve […]

Exelon has optimized the efficiency of its operations, maintenance, and engineering staff. By automating data collection, plant engineers now focus on analyzing data rather than manually collecting data and risking radiation exposure. Download this case study to get more details then go here to learn more about Condition Based Maintenance (CBM) for Power Generation.

There is a synergistic relationship among the three major cooling water treatment issues: corrosion, scale or deposit formation, and microbiological fouling. In order to control one, you need to control all

While having lunch at a downtown café with my friend the biology professor, the subject of animal extinction arose. “When it comes down to it, we really don’t know exactly why most prehistoric species

In today’s digital world, an optimally run power plant relies on valuable and accurate data in order to ensure assets are running reliably and with minimal downtime. Streaming in from control systems, SCADA

The power generation industry is undergoing a period of rapid transformation. A growing number of operators are considering the adoption of condition-based maintenance (CBM).  This whitepaper discusses the forces that are driving demand for CBM, how CBM works and why it is an effective alternative to planned maintenance strategies.
Find out more about CBM for Power

U.S. wind power is becoming more widespread and costs are generally on the decline, but the sector is troubled by policy uncertainties, a new report from the Energy Department says.   After a lackluster year in 2013, wind power capacity additions in the U.S. rebounded nearly 8% in 2014, driven by recent improvements in the […]

I’ve got some good news and some bad news. The good news is that, according to the U.S. Bureau of Labor Statistics, the number of occupational fatalities resulting from exposure to electricity has decreased steadily during the past 10 years (Figure 1). The bad news is that 141 people died on the job in the […]

Two of the most important elements in any construction or upgrade project are safety and speed of completion. While one way to increase safety is to eliminate hot work whenever possible, the reality is that welding is necessary for many tasks around a power plant. However, one area where welding may not always be required […]

Standards and regulations may change, but the danger associated with arc flash hazards remains. Analyzing potential incident energy correctly and understanding what personal protection equipment is required can help workers stay safe and avoid painful, or even life-threatening, injuries. The Occupational Safety and Health Administration (OSHA) and the National Fire Protection Association (NFPA) have both […]

Many of the dangers existing at conventional power plants also threaten personnel in the wind and solar energy sectors. All workers can benefit by reviewing lessons learned and implementing corrective actions to improve health and safety performance. The expanding wind and solar energy sectors are not immune to industrial hazards affecting all energy generation markets. […]

This is a web supplement to “Riding Off into the Sunset: Nuclear Decontamination and Decommissioning Update,” appearing in the July 2015 issue of POWER.   The Ignalina Nuclear Power Plant (INPP) is located in eastern Lithuania near Visaginas—a town of more than 20,000 people founded in the mid-1970s for workers constructing INPP and for the […]

Controlling combustion in fossil fuel power plants in order to control the emission of pollutants sometimes has adverse effects on plant equipment, including certain metals. To understand how to address the problem, it helps to understand how it develops. The emission of nitrogen oxides, generally referenced as NOx (NO or NO2), has several adverse effects […]

The electric power generation industry relies heavily on demineralized and deionized water during process operations. Managing the water supply is critical not only under normal operating conditions, but also during outages. When scheduled or unscheduled outages occur, many boiler and pre-boiler systems are drained. After the outage, they are refilled with water that has been […]