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.

Top Plant: Not all coal-fired power plants are constructed by investor-owned utilities or independent power producers selling to wholesale markets. When Newmont Mining Corp. recognized that local power supplies were inadequate and too expensive to meet long-term electricity needs for its major gold- and copper-mining operations in northern Nevada, it built its own generation. What’s more, Newmont’s privately owned 200-MW net coal-fired plant features power plant technologies that will surely become industry standards. Newmont’s investment in power and technology is also golden: The capital cost will be paid back in about eight years.

Worldwide energy consumption is projected to grow 50% between 2005 and 2030, driven by robust economic growth and expanding populations in the world’s developing countries, the U.S. Energy Information Administration (EIA) said in a reference case projection from its International Energy Outlook 2008 in June.

It’s gridlock on the road to the U.S. nuclear renaissance. Electric companies and consortia – 15 in all so far — are asking the U.S. Nuclear Regulatory Commission for combined construction and operating licenses for 24 new nuclear units under the terms of the 2005 Energy Policy Act. The companies are all seeking the loan […]

President Bush on Friday signed into law a measure to renew critical energy tax incentives that had been set to expire at the end of this year. The measure, which gained new life after a political impasse had left its future uncertain only the week before, was one of many added to the financial bailout […]

UK Prime Minister Gordon Brown last week created a new government department for Energy and Climate Change (DECC) as part of his latest cabinet shuffle. The new entity will take on several issues affecting the UK power industry, including soaring wholesale prices resulting from a squeeze in generating capacity, the nation’s crumbling power infrastructure, and […]

U.S. baseload generation capacity reserve margins declined to 17% last year, and with demand expected to outpace capacity growth, the nation could face significant risk of costly power brownouts and blackouts as early as next summer, suggests a new study released by NextGen Energy Council.   The nonprofit organization is composed of a wide variety […]

Seventeen electric power companies responded to the Department of Energy’s (DOE) June solicitation for federal loan guarantees to support the construction of 21 new U.S. reactors, the agency said Thursday. The power industry has now asked the Energy Department to provide loan guarantees of $122 billion—almost seven times the original $18.5 billion allocated by the […]

According to radiation standards established by the Environmental Protection Agency (EPA) last week, exposure over the next 10,000 years to neighbors of the proposed Yucca Mountain nuclear waste disposal facility in Nevada will be limited to 15 millirem a year—a little less than that from a single chest X-ray.   The Department of Energy’s proposed […]

New Jersey Board of Public Utilities (BPU) on Friday awarded Garden State Offshore Energy (GSOE) $4 million to develop a 345.6-MW offshore wind farm, a project that could be the first offshore wind farm on the East Coast.   GSOE’s proposal calls for building 96 wind turbines arranged in a rectangular grid 16 miles off […]

UniStar Nuclear Energy, a joint venture of Constellation Energy and France’s EDF Group, last week submitted a combined construction and operating license (COL) application to the U.S. Nuclear Regulatory Commission (NRC) for a potential new reactor at Nine Mile Point Nuclear Station in Scriba, N.Y.   The final decision on whether to proceed with the […]

Folks, this is a true story. We do not make this stuff up. As the late, great comic Steve Allen used to say, “I kid you not.” An NBC television crew, dispatched to the Arctic to show the horrendous effects of global warming – an ice-free Northwest passage – was stalled in the Arctic Sea […]

Did the now-irrelevant 1997 Kyoto Protocol reduce global carbon dioxide emissions, or even slow the rate of increase? No, according to Global Carbon Project, established in 2001 to measure worldwide, man-made carbon emissions patterns. According to the project’s “Global Carbon Budget,” released Sept. 25, “Anthropogenic CO2 emission have been growing about four times faster since […]

The U.S. Department of Energy (DOE) last week announced a solicitation for up to $8 billion in federal loan guarantees for coal-powered projects that employ advanced technologies to reduce or sequester emissions of air pollutants and greenhouse gases.   This marks the third round of solicitations for the DOE’s Loan Guarantee Program. The DOE said […]

RWE npower has urged the UK government to address pitfalls in carbon capture and storage (CCS) regulation and policy that could prompt delays to vital investments. The company, which revealed it was close to completing a UK CCS facility, was responding to the government’s CCS consultation that closed last week.   RWE npower, which supplies […]

All 12.6 million allowances offered at the first U.S. carbon dioxide emissions auction sold on Sept. 25, 2008. The permits were bought by 59 participants from energy, financial, and environmental sectors at a clearing price of $3.07 per allowance, states participating in the Regional Greenhouse Gas Initiative (RGGI) said Monday.   RGGI said on its […]

New Orleans-based Entergy Corp. on Thursday submitted a combined construction and operating license (COL) application to the U.S. Nuclear Regulatory Commission (NRC), selecting GE Hitachi Nuclear Energy’s next-generation ESBWR reactor design.   Entergy, the nation’s second-largest nuclear plant operator, is seeking to reserve the option to build a potential new reactor at its River Bend […]

A majority of supporters of John McCain and Barack Obama largely agree on how to deal with both the country’s energy needs and the problem of climate change, a new WorldPublicOpinion.org poll shows.   WorldPublicOpinion.org, an international research project managed by the Program on International Policy Attitudes at the University of Maryland, surveyed 1,174 Americans […]

Current U.S. tax credits for renewable energy, including wind and solar energy, are set to expire on Dec. 31, 2008. Last week, both U.S. congressional houses passed versions of a bill that would extend these credits, but the House’s version of what has been called “the year’s most important tax package” prompted criticism from the […]

Nuclear energy giant Électricité de France (EDF) on Wednesday clinched a deal to acquire British Energy plc—a privatized UK company that provides almost 20% of Britain’s electricity—for £12.5 billion ($23.18 billion).   On Thursday, the majority French state-owned company bought a 26% stake in British Energy through its subsidiary Lake Acquisitions as part of its […]

No matter what its size, fine particulate matter is a serious matter for coal-burning power plants. A process that charges those particles shows promise for mitigating the problem.

The already razor-thin power supply margins in the UK are likely to become nearly transparent by 2012, according to a new study prepared by Fells Associates: “A Pragmatic Energy Policy for the UK” (PDF). The report notes that the UK’s electricity shortfall will blossom to between 30 GW and 35 GW by 2027, and residents should expect periods when demand exceeds supply in just three years. If you think the UK government is worried, think again.

The power industry’s operating and maintenance practices were held up to intense regulator and public scrutiny when on November 6, 2007, a Massachusetts power plant’s steam-generating boiler exploded and three men died.