After an extensive public process, the Virginia State Corporation Commission (SCC) last week approved construction of a 500-kV transmission line project running through the northern part of that state.   TrAILCo’s $850 million project—named the Trans-Allegheny Interstate Line (TrAIL)—calls for construction of a new 500-kV line extending from southwestern Pennsylvania through West Virginia and into […]

Kennedy Maize
Desperate to score points in a crucial state where they are in the double-digit dumps, the Republican McCain-Palin presidential ticket rolled out their heartfelt support for “clean coal technologies” at a rally in Scranton, Pa., this week.

A twist on an old technique, flue gas recirculation, helps prevent slagging in the upper furnace and convective pass, according to pilot testing recently completed by APTECH CST and the Southern Research Institute. The technology—along with a companion technology for furnace sorbent and urea injection for SO₂ and NO^x control—could help owner/operators of smaller, older coal-fired plants meet emissions limits at a reasonable cost.

The U.S. Department of Energy (DOE) last week awarded military-industrial giant Lockheed Martin a cooperative agreement contract worth $1.2 million to demonstrate innovative generation technologies that use the ocean’s thermal gradient.    Ocean Thermal Energy Conversion (OTEC) uses temperature differences of 36 degrees F or more between warm surface water and cold deep seawater to […]

Software ranges from shrink-wrapped products available “off the shelf” to custom corporate implementations of enterprise systems that require sessions with shrinks to keep everyone sane. Regardless of its complexity, every piece of software a plant uses, or interfaces to, poses critical issues that require life-cycle management. Although functionality has always been the chief specification for software, plants must pay far more attention to long-term quality issues. These two concerns are often at odds with each other.

PPL Corp. on Friday submitted an application to the U.S. Nuclear Regulatory Commission (NRC) for a license to build and operate a new nuclear plant—the 17th received by the agency so far.   The company has proposed in its combined construction and operating license (COL) application to build the Bell Bend nuclear plant close to […]

Most of today’s operating coal plants began service at least a generation ago and were designed to burn eastern bituminous coal. A switch to Powder River Basin coal can stress those plants’ boiler systems, especially the pulverizers, beyond their design limits and cause no end of operational and maintenance problems. Many of those problems are caused by failing to maintain good fuel fineness when increasing fuel throughput.

Representatives from both presidential campaigns engaged in a spirited debate about their candidates’ approaches to solving the nation’s energy problems at the Massachusetts Institute of Technology (MIT) on Oct. 6. Among the notable distinctions were that John McCain favors leaving energy decisions up to the states while Barack Obama calls for significant regulations and investment […]

An increasing number of low-pressure steam turbines—especially at supercritical fossil units—have experienced stress corrosion cracking in the blade attachment region of their low-pressure rotors. Approaches to solving this problem range from redesign of the attachment and blade replacement to in-situ weld repair. Regardless of the procedure selected, the solution must completely restore the turbine performance while minimizing outage duration.

What does human metabolism have in common with coal combustion? Quite a bit, it turns out, say researchers at the National Energy Technology Laboratory (NETL) who are studying chemical looping combustion (CLC) involving coal gasification, an emerging technology for clean energy production from fossil and renewable fuels.