POWER

One indication that the world’s offshore wind sector is poised to soar is the escalating competition between turbine makers. This April, General Electric (GE)—the world’s second-largest manufacturer of wind turbines—announced it would introduce a 4-MW gearless wind turbine (a design requiring no gearbox between turbine and generator) in 2012. The move directly challenges market leader Siemens Energy, of Germany, and its head-to-head competitor, Denmark’s Vestas Wind Systems.

Many alternative approaches for determining a useful definition of combined heat and power fossil power plant efficiency have been proposed, although most fail to produce a universal definition. This follow-up report to our February story on plant efficiency shows how an exergy analysis supplies the elusive solution.

Facing a difficult uphill slog in a sharply polarized Senate, Sens. John Kerry and Joseph Lieberman have unveiled long-awaited draft climate change and energy legislation that includes billions of dollars in incentives for the nuclear, natural gas, and coal industries aimed at attracting enough bipartisan support to overcome an all-but-certain filibuster led by the Senate Republican leadership.

Finland’s government in April approved two of three proposals for the construction of new nuclear reactors in an effort to rid the country of its dependency on electricity imports from other countries—especially Russia—as well as to decrease carbon emissions.

IMI Sensors released model 682A09 ICP In-Line 4-20 mA Vibration Transmitter, a device that installs with any industrial accelerometer and converts the vibration signal to a 4-20 mA velocity output that can be trended with today’s PLC, DCS, or SCADA control room systems. Its sleek design installs right into the cable run. No DIN rails, […]

Boiler insulation practices have moved from using a single layer to a double layer of the same total thickness in recent years. However, this dual-layer trend has a downside: higher installation costs and the opportunity for contractors to cut corners when installing insulation. It’s time to return to using single-layer insulation on power boilers.

Growing water demand and reduced runoff due to drought has depleted waters feeding many hydroelectric power plants around the world—sometimes causing severe power shortages, such as in Brazil and New Zealand. The 2,080-MW Hoover Dam (Figure 4), a facility that generates power for more than a million people in Arizona, Nevada, and Southern California, is not immune to this phenomenon. According to a recent study by the Scripps Institution of Oceanography, the Colorado River system, which includes Lake Powell and Lake Mead (both manmade reservoirs), is suffering a net deficit of nearly one million acre-feet of water per year.

Types 510 and 511 diaphragm seals are the newest addition to Ashcroft’s line of instrument media isolators. These economical, all-welded seals protect pressure gauges, transmitters, switches, and other instruments against the potentially harmful effects of caustic media. The seals are available for use with ranges from vacuum through 5,000 psi, and they can be threaded […]

One of the primary challenges of reliably burning coal is managing the corrosion experienced by the furnace heat transfer surfaces. Fireside corrosion remains a leading cause of failure in superheater and reheater tubes. In Part I, we examined three case studies of different failure modes experienced by tubes located throughout the furnace. In Part II, we conclude with two additional boiler tube failure case studies.

Gas hydrate, a potentially immense energy resource, occurs at high saturations within reservoir-quality sands in the Gulf of Mexico, an expedition by the U.S. Department of Energy has discovered.

GD Nash introduced the new 2BE4 series vacuum pumps and compressors, a redesign and upgrade of the existing 2BE3 series. The 2BE4 series includes optimized inlet and discharge porting for enhanced performance, and cylindrical roller bearings for improved load ratings and increased reliability (bearing upgrade is possible in existing 2BE3s). The series also includes optional […]

By Kennedy Maize Washington, D.C., May 26, 2010 — A breathless article in today’s New York Times outlines ties between U.S. Energy Secretary Steven Chu and, today’s chief villain, British Petroleum. Turns out that BP dropped half-a-billion dollars on Lawrence Berkeley Laboratory for work on alternative fuels when Chu ran the lab. When he got […]

GE on Monday said it had struck a deal with the Lake Erie Energy Development Corp. (LEEDCo ) to provide direct-drive wind turbines and maintenance services for the Ohio company’s 20-MW proposed freshwater offshore wind farm in the Great Lakes.

The Environmental Protection Agency (EPA) last week released action plans developed by 16 utilities describing measures the facilities are taking to make their coal ash impoundments safer.

The Virginia Court of Appeals on Tuesday unanimously approved an air emissions permit granted to Dominion Virginia Power’s 585-MW Virginia City Hybrid Energy Center, a coal-fired plant that is 63% complete.

Michigan regulators on Friday denied Wolverine Power Supply Cooperative’s air quality permit for a new 600-MW power plant, fueled primarily by petroleum coke and coal, in Rogers City. The state’s Department of Natural Resources and Environment (DNRE) decision was based on findings of the Michigan Public Service Commission (MPSC), which said the company failed to demonstrate the plant was needed to meet future supply.

Nonprofit Ohio utility American Municipal Power (AMP) last week said it would begin shutting down the 213-MW Richard H. Gorsuch Generating Station (RHGS), a 1950’s vintage coal-fired power plant located near Marietta, Ohio, as part of a New Source Review (NSR) settlement with the Environmental Protection Agency (EPA) and the Department of Justice (DOJ).

Renewables will be the fastest-growing source of energy throughout the world over the next 28 years, helping to meet a projected 49% increase in world energy use, according to the U.S. Energy Information Administration (EIA). But, the agency also found in its International Energy Outlook 2010 released on Tuesday that fossil fuels could meet more than three-fourths of total energy needs in 2035, if current policies remain unchanged.

The U.S. Energy Department last week offered French firm AREVA a conditional $2 billion loan guarantee to facilitate financing of a uranium enrichment facility planned for development near Idaho Falls, Idaho.

The Tennessee Valley Authority (TVA) on Monday said completing one of two unfinished units at the Bellefonte Nuclear Plant in north Alabama would be preferred over building a new Westinghouse AP1000 reactor there, or taking no action.

New Jersey’s largest utility, Public Service Enterprise Group (PSEG) on Tuesday filed an Early Site Permit (ESP) application with the U.S. Nuclear Regulatory Commission (NRC) for a possible nuclear power plant adjacent to the company’s Salem and Hope Creek Generating Stations in that state.

By David E. Wojick, PE, Ph.D. Washington, D.C., May 22, 2010 — Listed below are the National Research Council panel members who wrote the so-called National Academies of Science report on climate science, published this month. Several are old time anthropogenic global warming (AGW) proponents, like Bob Corell of the Heinz Center, Warren Washington of […]

By Kennedy Maize Washington, D.C., May 21, 2010 — Thanks to the far-reaching and meticulous online research for which he is justifiably famous, my friend Glenn Schleede has answered the conundrum that stands in the way of widespread adoption of renewable energy technologies. Writes Glenn, “I haven’t been able to verify this, but I’ve heard […]

By Kennedy Maize Washington, D.C., May 29, 2010 — File this in the “empty threat” folder: Gary Pierce, a member of the five-person, elected Arizona Corporation Commission, the state’s utility regulator, has suggested that Arizona should block a move by the city of Los Angeles, Calif., to boycott the Grand Canyon State by cutting off […]

The Arkansas Supreme Court last week upheld a state appellate court decision that had previously overturned, on technical grounds, a permit authorizing construction of Southwestern Electric Power Co.’s (SWEPCO’s) 600-MW John W. Turk Jr. coal-fired power plant in Hempstead County. The decision could pose a serious setback for the project—the nation’s first ultrasupercritical plant—that is under construction and almost a third complete.

The U.S. Environmental Protection Agency (EPA) on May 13 finalized the so-called "Tailoring Rule," regulations that would implement certain Clean Air Act (CAA) permitting programs for electric power plants, refineries, and other major "stationary sources" that emit at least 100,000 tons per year of greenhouse gases (GHGs).

Last week brought news about new nuclear power projects from Turkey, Jordan, and Mexico.

The UK’s Liberal Democrats—a party long-opposed to nuclear power—last week said it would abstain from voting against construction of new nuclear power plants in that country, as long as they are privately funded.

The Federal Energy Regulatory Commission (FERC) and the State of California on Tuesday signed a Memorandum of Understanding (MOU) to coordinate procedures and schedules for review of hydrokinetic energy projects off the California coast.

By Kennedy Maize Washington, D.C., May 16, 2010 — Will Happer, noted Princeton physicist, and a veteran of Washington’s bureaucratic wars, has an intriguing suggestion about how to reconcile the views of raving advocates for climate controls with the objections of skeptics, when both sides are populated by reputable scientists. He wants the government to […]