POWER

This year’s main course, as usual, was instrumentation and controls. Side dishes of digital nuclear plant controls, plant controller and IT security, corrosion monitoring, and model predictive control added their own distinctive flavors. There was something for every taste, from the theoretical to the practical.

Beer drinkers know and love Sierra Nevada Brewing Co.’s dedication to bottling premium beers, and that commitment has earned it numerous tasting awards. But it would also win awards on the basis of using clean, high-tech brewing technologies. Sierra Nevada has chosen to minimize its environment footprint by investing in a reuse/reduce/recycle beer-making process. The company has found a way to make its "closed-cycle brewery" a good corporate citizen without compromising bottom-line results.

Cape Wind’s economics questioned The cited study concludes that the Cape Wind Project will "receive a 25% return on equity, 2.5 times the historical average for all corporations" when the present value of federal production tax credits, Massachusetts green credits, and accelerated depreciation for tax purposes are included. Our elected officials passed these laws, and […]

The sale or merger of any company takes its toll on employees. Though it’s merely a hassle adapting to a different T&E form, the sudden uncertainty about health-care coverage and pension can be truly stressful. For plant managers, the impact is even greater—adapting to a new budgeting process and reporting requirements, not to mention answering hundreds of subordinates’ questions about the future, even before the deal closes. However, plant managers may actually end up better off as a result of a merger or acquisition.

Safer, "virtual" reactor walkdowns; Beating the heat with inlet cooling; Reaching remote substations without fiber; One-year payback for lightning protection systems; Reaching remote substations without fiber

By Quin Shea, Edison Electric Institute The U.S. electric power industry is committed to improving America’s air quality. Progress over the past 25 years has been real and significant and something we all can be proud of. However, the U.S. Environmental Protection Agency (EPA) is now proposing a new, lower limit on emissions of particulate […]

  More than 20 states now require their investor-owned utilities to serve a certain percentage of their load with renewable energy by a date certain. Other states are considering following suit. Failure to meet its "renewable power" mandate can subject a utility to financial and other regulatory penalties. If structured and supervised correctly, these initiatives […]

On the following pages, we introduce the magazine’s 12 Top Plants of 2006. Among this year’s winners are two solar energy plants and another that marries fuel cells with heat and waste gas recovery. As those projects make clear, a plant doesn’t have to be big to earn kudos from us. What we typically like […]

Iberdrola is rapidly making a name for itself on the world stage for building large, very efficient combined-cycle plants and for being the largest owner and operator of wind power plants. The utility’s most recent achievement was the successful commissioning of the Arcos de la Frontera Group III project, which marks the commercial debut of General Electric’s Frame 9FB gas turbine.

The world’s largest solar electric system was dedicated in June 2005 in Mühlhausen, Germany. The 10-MW system comprises three separate but interconnected photovoltaic parks in different cities that use an innovative sun-tracking system to maximize their outputs. After one year of operation, all three parks are still going strong—as you’d expect, due to their dearth of moving parts.

A great location, a fish-friendly cooling system, and the extent of environmental remediation needed to permit it distinguish this repowering project on the Hudson River just south of the New York State capital.

The Brooklyn Navy Yard Cogeneration facility supplies critical electricity and steam to New York City. Situated on an historic site, the plant has earned a series of awards and was the first cogeneration plant to be accepted into both the U.S. EPA National Environmental Performance Track and OSHA’s Voluntary Protection Program in 2005. Through Delta Power’s unique asset management approach that brings added value to projects, BNYC has reinvented itself from a struggling, prematurely aging facility into one of the nation’s leading plants.

Commercial operation of PacifiCorp’s first new power plant in more than 20 years coincided with the company’s acquisition by MidAmerican Energy Holdings Company this past March. Currant Creek treads lightly on the environment, provides needed power to PacifiCorp’s eastern control area, and has demonstrated its commitment to be a good corporate citizen of the local community. By any account, Currant Creek is a model for how to develop a power project.

With the commercial debut of the first of six planned 470-MW turbines in December 2005, the time has come to pay homage to the sheer size (2,820 MW) and longevity (13 years and counting) of TEPCO’s Kannagawa Hydropower Plant. By the time Unit 2 is commissioned in 2010, and Units 3 through 6 go on-line "in and after 2016," two generations of engineers, technicians, and builders will have worked on the "pure" pumped-storage project since its inception. As if those stats weren’t impressive enough, Kannagawa marks the debut of "splitter runners" for pump-turbines. They increase the effective head of the plant to the highest in the world: 2,142 feet, at a flow of 135,000 gallons/second. That’s a very large pump-turbine, indeed.

It would be easy to dismiss Linden—which is powered by now-ubiquitous GE 7FA gas turbines and D11 steam turbines—as just another cookie-cutter combined-cycle plant. But its size (1,240 MW), key location near New York City, and use of reclaimed water for all cooling water needs makes Linden deserving of recognition as one of POWER’s Top Plants of 2006. Perhaps its most interesting story is how the project survived more than five years from groundbreaking to commissioning.

Why does Monticello, a 30-year-old plant, deserve recognition as one of POWER’s Top Plants of 2006? Because TXU has been blending Powder River Basin (PRB) coal with local lignite at the plant for the past decade, and steady reductions in air-pollutant emission rates have been the result. That positive experience has made the company confident enough to propose building nearly 9,100 MW of new coal- or lignite-fired capacity in Texas by 2010 at a cost of $10 billion. Read on to share some of the lessons that TXU has learned about handling PRB coal safely.

Richard Nixon was the master of the “big lie” in politics. Once, when his cronies expressed concern about some “liberal” statements he had made, he told them to “ignore what I say and watch what I do.” That insight into an elected representative’s true state of mind is as useful today as it was a […]

The pressure on power producers to supply reliable electricity is unyielding. Forced outages, which usually are caused by unexpected component failure or systemic problems, can prove very costly to both bottom line and reputation. To reduce the frequency and duration of unscheduled outages, many gencos are implementing comprehensive predictive maintenance (PdM) programs. Such is the […]

The Williamson Free School of Mechanical Trades near Philadelphia has been training power plant operations professionals for 112 years, and its graduates hold top positions at many major gencos, refineries, equipment suppliers, and design and construction companies. Testimonials indicate that it provides one of the best models for training tomorrow’s plant operators.

In April 2005, U.S. Secretary of Energy Samuel W. Bodman asked the National Coal Council to develop a “report identifying the challenges and opportunities of more fully exploring our domestic coal resources to meet the nation’s future energy needs.” The council has responded with eight specific recommendations for developing and implementing advanced coal processing and combustion technologies to satisfy our unquenchable thirst for energy.

Participants in the CEO Roundtable at Electric Power 2006 raised a plethora of issues affecting decisions on future electric power generation. Representing a cross section of power producers, the industry leaders made clear that, although globalization has lost its luster in the power generation sector, its impact on the domestic industry remains profound. Ten years […]

If coal is to be “America’s energy future” (see p. 42), the work of the Powder River Basin Coal Users’ Group (PRBCUG) will have a lot to do with making it so. Since 1999, the PRBCUG (see sidebar) has fostered the safe, efficient, and cost-effective use of the fuel as it watched its membership swell […]

The third annual meeting of the Combined Cycle Users’ Group (CCUG) was held May 2–4 in Atlanta at Electric Power 2006, in cooperation with the ASME Power Division Combined Cycles Committee and other industry groups. The CCUG’s leadership (Figure 1) drives the group to address issues involving the major components of a combined-cycle plant and […]

Five years ago, San Onofre Nuclear Generating Station’s Unit 3 turbine experienced substantial damage after the supply of oil to its bearings failed. Because the turbine coasted down without oil after it tripped, its bearings, journals, and steam path needed extensive repairs. A follow-up investigation revealed lube oil system vulnerabilities that were subsequently corrected. The lessons learned might also improve your turbine-generators’ lube oil reliability, saving you many millions in lost revenues.

Today’s utility business models re-emphasize utilities’ traditional mission—producing and delivering reliable, affordable power. Tracking how well that mission is executed is the raison d’être of modern plant performance benchmarking.

Hydroelectric power plant managers face unique scheduling challenges. They have a finite amount of water in their reservoirs available for energy production, and they need to schedule generation according to market demand to maximize profits from their limited “fuel” supply. Hydro power plants are capable of producing products other than electricity. Among them are ancillary […]

Although fluid monitoring technology has come of age in recent years, its level of sophistication varies widely across industries. Some users of bulk chemicals, fuels, and other fluids use state-of-the-art systems with bells and whistles like automated data gathering and transmission. At the other extreme, some tank farms still “stick the tanks.” Although 95% of large […]

In the U.S. electric power industry, coal is making a comeback as a fuel of choice for new generation projects. During the construction boom that occurred from 1999 to 2003 about 90% of new electric generation utilized natural gas – fired combustion turbines. Unfortunately, over the past few years natural gas supplies have tightened and […]

Is the U.S. supply of coal sufficient to meet the increased demand for coal-fired generation? With the increasing demand for coal to generate electricity, the big question is, How reliable is the supply and transportation of the fuel? Currently, Industrial Info Resources (IIR) is tracking 185 new coal-fired power projects, and if all were to […]

Kansas City Power & Light Installing SCR at La Cygne Generating Station Kansas City Power & Light (KCP&L), a subsidiary of Great Plains Energy, has awarded The Babcock & Wilcox Company (B&W) a contract for the installation of new emissions control equipment on Unit 1 at its La Cygne Generating Station. When completed, the selective […]