POWER

DW Global Group’s recently announced dry bulk hopper mini-silo system — comprising one or more reusable, translucent containers — is designed for companies wanting to replace fiber drums, cardboard boxes, wood pallets, and super sacks. The rugged plastic containers — lids included — multitask as shipping, storage, and dispensing systems. Each hopper has a valve at the bottom for easy flow of material from hoppers to the manufacturing machine. The system allows for stacking of up to three units with a total weight of as much as 2,400 pounds. According to DW Global, the investment for a multi-purpose dry bulk hopper system can be "as little as $5,000 to $10,000, with a return-on-investment in less than a year." (www.dwglobalgroup.com)

News items of interest to power generation professionals.

The "TCS Cheetah" air-powered hoist from Harrington Hoists Inc. is now available in two new capacities: the ¼-ton TCS250C/P and the 1-ton TCS1000C/P-2. Built for speed, the units are adjustable to fit all lifting requirements, particularly fast-paced or repetitive lifting applications. Additional features include a compact, lightweight aluminum body with good headroom, a disc brake for reliable load support, a vane monitor for very fine feathering control, and an unlimited duty cycle for continuous operation. (www.harringtonhoists.com)

By the end of this year, U.S. power plants with coal ash surface impoundments could face new federal regulations related to the management of coal ash at their facilities. Currently, there are no federal requirements governing coal ash management because in 2000 the U.S. Environmental Protection Agency (EPA) determined it to be a nonhazardous waste under the federal Resource Conservation and Recovery Act.

In the 1990s, alarm bells were sounded because the construction of electric transmission infrastructure was not keeping pace with the United States’ rapidly increasing electric demand. More than 10 years later, despite considerable debate and the passage of new legislation, we continue to search for ways to get transmission built. However, it now looks as if 2009 may the year in which the stars finally align to fix the transmission system.

Water treatment programs for boilers and heat-recovery steam generator (HRSG) units appropriately focus on chemistry controls during normal operation. However, rates of corrosion product transport and deposition can be much greater in boilers and HRSG units during start-up than during routine operation. For that reason, in addition to standard programs for monitoring and control of corrosion product transport, deposition, and underdeposit corrosion, consider adding contingency plans for boiler water chemistry holds in the start-up process.

Maintaining reliable and efficient plant operations requires good control of corrosion and corrosion product transport in power plant water systems. The Electric Power Research Institute recommends oxidation-reduction potential for passivator control in feedwater systems, as do many industry experts. Here’s how to turn that recommendation into a robust feedwater monitoring program.

Mark Twain summed it up best when he described India more than a century ago as a place of “fabulous wealth and fabulous poverty.” Today, for all its surging economic growth, 300 million Indians still live below the poverty line.

On January 8, 2007, a hydrogen explosion at the Muskingum River Power Plant’s 585-MW coal-fired supercritical Unit 5 caused one fatality, injuries to 10 other people, and significant damage to several buildings. The explosion occurred during a routine delivery of hydrogen when a hydrogen relief device failed, which allowed the contents of the hydrogen tank to escape and be ignited by an unknown source. This article covers the findings of the incident investigation and the actions the plant has taken to prevent a reoccurrence.

Confronted with a district court ultimatum that would have forced it to install expensive pollution controls or close two coal-fired units at its R.E. Burger Plant in Shadyside, Ohio, Akron-based FirstEnergy Corp. announced in April that it would convert them to biomass. When the $200 million retrofit is complete, as is expected by 2013, the Burger Plant will likely be one of the largest biomass facilities in the U.S.

India has become a global business power even though hundreds of millions of its citizens still live in poverty. To sustain economic growth and lift its people out of poverty, India needs more — and more reliable — power. Details of government plans for achieving those goals demonstrate that pragmatism may be in shorter supply than ambition and political will.

Though solar thermal tower technology has been around since the 1970s, to date, only one plant in the world commercially generates electricity: Abengoa Solar’s 11-MW PS10 tower just outside Seville, in Spain’s Andalucía desert has been grid-connected since early 2007. Because the technology relies on heat from solar energy that is reflected by mirror arrays (heliostats) onto a tower-mounted receiver, installations tend to be site-specific, expensive, and high-maintenance.

Recognizing that the long-term sunk cost, long project planning and construction timeframe, and high-risk portfolio make it difficult for private investors to raise funds whose maturity matches project completion dates, the Indian government has since 1991 allowed 100% foreign direct investment in the power sector.

Boilers have enormous thermal mass and are relatively slow to react. Turbines are nimble and quickly answer an operator’s command. Coordinating an entire plant requires an intimate knowledge of both systems and selecting the right logic tools to bring them together.

Barrages across the Solway Firth, Morecambe Bay, and the Mersey and Dee estuaries in the northwest UK could provide more than 5% of the nation’s electricity and meet half the region’s electricity, a study by engineers at the University of Liverpool has found.

New-generation nuclear plants may be having trouble getting out of the gate, but that doesn’t mean that nuclear capacity additions are at a standstill. In fact, the 104 operating nuclear units in the U.S. have added substantial new capacity in the form of reactor and plant uprates over the past 20 years. Power uprates alone have added more than 5,600 MW since 1998 — the equivalent of five new nuclear plants.

U.S. scientists concerned about carbon dioxide (CO₂) leaks from sequestration attempts have been pursuing the option of natural chemical reactions within the earth to turn the carbon back into a solid, and they have identified an abundant supply of large rock formations around the world that could be used a vast sink for the heat-trapping gas.

The much-ballyhooed U.S. nuclear renaissance, with a few exceptions, is running late, thanks to the usual Washington bureaucratic quagmire plus the added risk resulting from crumbling financial markets. The future doesn’t look much brighter. The poor outlook for Yucca Mountain and the new administration’s general indifference to nuclear power have made a rebirth of the nuclear industry an even higher-risk proposition than before.

Geothermal energy in Europe may have been used for centuries — it was popularized by the Romans and adopted by the Turks — but geothermal-generated electricity was first produced at Larderello, Italy, in 1904. Since then, its growth on the continent has shot up to 820 MW. But, according to the European Renewable Energy Council, the resource’s full potential has barely been harnessed.

Jon Wellinghof, the latest chairman of the Federal Energy Regulatory Commission, is, by his own words, a doofus. As reported in Power News this week, Wellinghoff said the U.S. may never need new baseload electric generating capacity.  Why? Because wind will be so cheap it will get sent out first in an economic dispatch regime. […]

The estimated $30 billion that electric utilities have paid since 1982 to the Nuclear Waste Trust Fund for the construction and operation of the federal nuclear waste repository at Yucca Mountain could be returned to them if a Senate bill introduced on Thursday passes.

The U.S. may never need new nuclear or coal-fired power plants because renewable energy and improved efficiency can meet future power demand, Jon Wellinghoff, the Federal Energy Regulatory Commission chair, last week reportedly said.

The UK will not permit new coal-fired power plants without equipment to capture and store at least 25% of carbon emissions from day one and 100% by 2025, when carbon capture and storage (CCS) technology is expected to be technically and commercially proven, the country’s climate change secretary, Ed Miliband, said last week.

Changes to a state bill that would have allowed AmerenUE to charge customers during the construction of a second nuclear plant at Callaway in Missouri last week prompted the company to pull the plug on the $6 billion project.

Executives of North American utility companies are nearly split on whether President Obama’s proposed energy initiatives will have a significant impact on the structure of the electricity sector, according to the third annual Platts/Capgemini Utilities Executive Study just released. But there is greater executive agreement that environmental regulation and electricity prices for end users will be increasing.

Spurred by New York’s target to meet 45% of its electricity needs through renewable resources by 2015, the New York Power Authority (NYPA) last week issued a call for proposals to develop offshore wind projects of up to 120 MW in New York State waters of Lake Erie and Lake Ontario.

The performance of automated systems designed to protect infrastructure from damage during severe system conditions must be addressed to limit the scope and severity of bulk power system disturbances in North America, the North American Electric Reliability Corp. (NERC) told stakeholders in a letter last week.

The Environmental Protection Agency (EPA) wants to reconsider an air permit it awarded last July to the 1,500-MW coal-fired Desert Rock Energy Facility project proposed for construction by Sithe Global Power, LLC on the Navajo Nation tribal reservation in New Mexico.

The 30-year anniversary of the Three Mile Island accident passed with little fanfare because our nuclear plant fleet today operates with high reliability and struts an excellent safety record. That wasn’t always the case.

Nuclear loan guarantees in the 2005 Energy Policy Act have proven to be a failure: not just too little, but far too late.