Archive: Nuclear

Regulatory risks paralyzing power industry while demand grows

In our second annual report on the state and future of the U.S. power generation industry, we combine the considerable experience of POWER’s editorial staff with the market savvy of Industrial Info Resources Inc. (see next story) to preview the industry’s direction in 2008. We anticipate that the specter of carbon control legislation will hobble coal and make renewables the hot ticket while nukes continue to inch forward in a generation market that is basically treading water.

Global Monitor (January 2008) 

Dominion applies for new Virginia reactor / ABB commissions world’s largest SVC / Google Earth adds air quality data / Alstom supplies integrated solar/CC project in Morocco / DOE updates coal plant database / Dam the Red Sea? / Complying with CWA Section 316

Renew Indian Point’s fission license

  Early last month, Governor Eliot Spitzer and Attorney General Andrew M. Cuomo—both New York Democrats—asked the U.S. Nuclear Regulatory Commission (NRC) to reject Entergy Nuclear’s application to extend the operating licenses of Indian Point Units 2 and 3 for 20 years. The units, each rated at about 1,000 MW, are a major source of […]

Global Monitor (December 2007)

TVA may revive Bellefonte / GE’s globetrotting Jenbaches / Largest PV plant taking shape / When will PV be competitive? / Siemens goes to the wall with solar / Breakthrough in metamaterials / POWER digest

Focus on O&M (November 2007)

The NERC auditors are coming / Winning encore for on-line pH monitoring / Using baloons as temporary barriers / How data logging can cut power bills

Global Monitor (November 2007)

NRG applies for first COL / TVA green-lights Watts Bar 2 / Southern Co. and Florida muni launch IGCC project / UK approves wave energy "hub" / New Jersey-New York HV system launched / Membrane strips CO2 from methane faster / POWER digest

Accurately measure the dynamic response of pressure instruments

How do you know if a pressure transmitter is giving poor results? Unless the transmitter actually fails, most operators won’t notice a very slow loss in accuracy or response time. Fortunately, the noise analysis technique can identify such changes before they cause a problem. The technique has been used to effectively measure the dynamic response of nuclear power plant pressure sensors and their associated sensing lines. It also can be applied to any plant that relies on accurate instrumentation for control and monitoring plant performance.

Do the math

The eyes of Texas—and the rest of the world—are upon NRG Energy after its September application for licenses for two new reactors at South Texas Project (see Global Monitor). The filing was the first of its kind in nearly three decades and the first of up to 30 like it expected over the next few […]

Defined scope, experienced team essential to nuclear I&C upgrade projects

Over the past few years, U.S. nuclear power plants have begun replacing their obsolete analog control systems with digital control systems. Many of these projects have been completed successfully, yielding a tidy return on investment in the form of increased generation. However, some have encountered difficulties, which resulted in cost overruns and schedule delays. This minority of projects may have eroded the industry’s confidence in digital upgrade projects, but a well-run project is still one of your best options for squeezing the last drop of performance out of your plant.

Upgrade your BWR recirc pumps with adjustable-speed drives

The U.S. is home to more than 30 boiling water reactors of BWR-3 through -6 vintage. At one time or another, all have experienced obsolescence, reliability, or control problems with their reactor recirculation flow control systems and components. Temporary down-powers are often required for corrective maintenance. Exelon Nuclear plans to begin upgrading the recirculation pump motor drives at its BWRs in the spring of 2009. The upgrade project’s technical design and business case were developed in great detail before the project was approved. This article presents the results of all key internal analyses.