Charlton Heston’s legacy will surely rest on his iconic performance as Moses in The Ten Commandments and his unwavering support of the Second Amendment. I had the privilege of watching a classic Heston performance at the 2000 National Rifle Association convention in Charlotte, N.C., when he raised a handmade Brooks flintlock above his head and […]

National Grid divested of Ravenswood/ GE to sell Baglan Bay plant; From prairie grass to power/Renewables experience 40% growth/ The sustainable city/Solar recharger for developing countries/ Seeking CCS solutions/ Hoover Dam could stop generating/ Japan turns to fossil fuels/U.S. reactors produce record power/ POWER digest

TRENDS: Retail competition

Until very recently, common wisdom held that the price of renewable energy would fall as legislative procurement mandates ensured its long-term demand. The resulting growth in supply and sales would spur investment in the field, create economies of scale, and accelerate progress down the technology learning curve. Something unexpected, however, happened along the way. Though […]

Perhaps the biggest shortcoming of wind power is its unreliability. Unconcerned with human needs, Mother Nature has decided that the wind usually blows strongest at just the wrong times, when electricity demand is lowest. However, using savvy negotiations to exploit a new provision in California’s renewable energy regulatory regime could make wind power more dispatchable during peak-demand periods and increase the capacity of wind farms at the same time.

This February, a federal appeals court tossed out the Clean Air Mercury Rule and its cap-and-trade program and ordered that mercury be regulated more stringently as a hazardous air pollutant. Adding insult to injury, the court made its ruling effective one month later. While the EPA regroups, state energy and environmental regulators will have an opportunity to look closely at recent power plant permits for guidance. This article reviews the technology options and regulatory approach for mercury control used on recently permitted and currently operating coal-fired plants.

The ability to detect contaminated feedwater or steam before it can corrode the internals of a turbine or HRSG and cause a forced outage is worth millions. One knock against cation conductivity monitoring—still the most common technique for the early detection of contamination—is the difficulty of interpreting conductivity readings when the plant’s makeup contains significant levels of organics or CO₂. Here are the pros and cons of cation conductivity monitoriting and some alternative monitoring methods.

Modern predictive maintenance systems can monitor the health of most plant equipment. By sorting through the wealth of information those systems deliver, operators can discern important trends, including the early signs of a system or component failure.

The next-generation power grid—enhanced by digital technologies throughout the network to give generators, distributors, and customers greater control—promises to improve efficiency and lower operating costs. This year, in the most full-scale effort yet, Xcel Energy begins introducing intelligent grid technologies that it hopes will make Boulder, Colo., the first Smart Grid City.

The idea of harnessing the vast power of Earth’s oceans has tantalized humans for more than a century. Today, the prospect of generating as much as 4,000 TW of clean energy from marine sources is fueling a resurgence of interest in a variety of technologies.

In mid-2006, a Google search of the term “Smart Grid” generated around 2,000 responses. The same search this past month yielded more than 500,000 hits from a wide variety of sources. The explosiveness of the concept is especially interesting because there is no universal agreement on what constitutes a smart grid—much less agreement on what […]

Selecting the right turbine(s) for a specific power project is a complex process that poses two challenges. One is understanding which field experience cited by suppliers represents proven technology; the other is evaluating whether a turbine upgrade represents an evolutionary change or a revolutionary transformation that warrants further study before deploying it in the field. Here‘s how a leading EPC contractor makes technology-neutral equipment selection decisions on behalf of its customers.

Managing ongoing threats to power plants’ digital, telecommunications, monitoring, control, and automation systems is no longer just a good idea. It’s an essential element of superior plant operations and now a regulatory requirement as well, thanks to new critical infrastructure protection standards recently approved by FERC.

The new, 424-MW Castejon 2 combined-cycle plant designed and built by Alstom was recently given its provisional acceptance certificate. Alstom used its “Plant Integrator” approach to fast-track delivery of a plant just like Castejon 1, which averaged 98% availability during its first three years of operation. That kind of performance is crucial to generators operating in the Spanish merchant power market—or any market.

Leaders in the utilities sector talk a lot these days about talent. On one hand, they express concern about facing a shortage of knowledgeable staff as 76 million baby boomers exit the workforce. On the other, they worry about where they’ll find enough qualified people to remain competitive in light of the fierce battle for engineering talent that globalization has created. The antidote to these worries lies in reconfiguring HR practices.

If you enjoy POWER magazine’s New Products department, you’re going to love the ELECTRIC POWER 2008 Exhibition. You’ll be able to see and feel the latest tools of the trade and talk to the folks who provide them to the generation industry. Here’s a sneak peak at what awaits you on the exhibit floor May 6 to 8 at the Baltimore Convention Center.

  North America’s electricity grid has been described as the world’s most complex machine. The grid is unique among utility infrastructure systems for its need to have supply and demand—generation and load—balanced at all times. There still are no technologies for storing large quantities of electricity akin to liquefied natural gas tanks, voice mail, or […]

Tenaska proposes first new coal-fired plant with carbon capture/ Concerns raised over growth of China’s CO2 emissions/ Sandia, Stirling Energy Systems set new world record/ Indonesia orders first Wärtsilä Gas Cubes/ First wind turbines on Galapagos Islands cut oil imports/ Harnessing waste heat for electricity/ POWER digest/ Correction

The advent of the Smart Grid will bring a new driver for value creation to the electric power industry: economies of connection. In the future, the Smart Grid may offer our industry improved returns more typical of Internet-based businesses like eBay, Amazon, and Google to replace the diminishing returns typical of traditional “steel in the […]

Tag-teamed seawater cleanup; New cooling towers to improve river’s health; Back to school

In early February, Western GeoPower (WGP) announced its termination of a 20-year geothermal power purchase agreement (PPA) with Pacific Gas and Electric Co. (PG&E). A WGP press release explains that the company terminated the agreement because a regulatory approval condition had not been obtained within a 180-day time period stipulated in the PPA. WGP’s CEO, […]

The nuclear renaissance is likely to slow next year with a new tenant in the White House and many key regulatory positions in flux. Nuclear industry leaders are especially concerned that rules for construction loan guarantees will fall victim to the “wait and see” disease that infects those inside the Beltway every four years. If those rules aren’t in place before this November’s election, the nuclear renaissance may revert to the Dark Ages.

Population shifts, growing electricity demand, and greater competition for water resources have heightened interest in the link between energy and water. The U.S. Energy Information Administration projects a 22% increase in U.S. installed generating capacity by 2030. Of the 259 GW of new capacity expected to have come on-line by then, more than 192 GW will be thermoelectric and thus require some water for cooling. Our challenge will become balancing people’s needs for power and for water.

In the U.S. and the European Union, scrubbers are installed on all new coal-fired power plants because their technology is considered the best available for removing SO2. A zero-liquid-discharge system is the best technology for treating wet scrubber wastewater. With the future promising stricter limits on power plants’ water use, ZLD systems that concentrate scrubber purge streams are sure to become as common as ZLD cooling tower blowdown systems.

Predicting combined-cycle system longevity and determining optimal maintenance intervals at the same time is difficult: It requires balancing repair costs against the risk of trying to squeeze that last bit of life out of some component before it fails. One solution to the problem is to extend coverage of an equivalent operating hours (EOH) preventive management program for turbines to the entire plant.

At this juncture our industry is faced with greater uncertainty and opportunity than ever before. That’s why you won’t want to miss all the information, ideas, and networking available at the power generation industry’s premier event in May.

By J. Bennett Johnston It is fashionable these days for policymakers, particularly those running for office, to somberly suggest that America needs an energy policy—thus implying that America has no energy policy. As one of the prime architects of an energy policy that has served America well, I could not disagree more. The fact that […]

—Dr. Robert Peltier, PE Editor-in-Chief Ever wonder why many utilities receive so little respect from the public? In America, open competition requires every business to earn customers’ trust before making a sale. Unfortunately, many utilities exploit their monopoly position to avoid the hazards of competition, including losses. It’s no wonder that public utilities, as a […]

DOE scraps FutureGen / U.S. nuclear plants have record year / Westinghouse wins TVA contract / UniStar Nuclear to file for COL / AEP ranks second in U.S. construction / China moving to the driver’s seat / New solar cycle poses risks / Dutch favor power from natural gas / POWER digest / Corrections

New CIP standards leave questions unanswered/Solving common analyzer problems/Qualifying rebuild shops