POWER

California Governor Arnold Schwarzenegger recently signed an executive order expanding the state’s renewables portfolio standard (RPS) requirement to 33% by 2020. The executive order formalizes what has been generally assumed for some time: A 33% RPS requirement will be needed for California to achieve its ambitious greenhouse gas (GHG) emissions reduction goals.

A pneumatic saw and universal pipe trolley kit that eliminates the need for heavy, clamshell saws for cutting all types of alloys and concrete-lined pipe are available from ESCO Tool of Holliston, Mass. The Esco APS-438 Air-Powered Saw and WrapTrack let users cut 6-inch to 60-inch outer-diameter pipe accurately without a heat-affected zone and are […]

The U.S. power industry’s story in 2009 will be all about change, to borrow a now-familiar theme. Though the new administration’s policy specifics hadn’t been revealed as POWER editors prepared this report, it appears that flat load growth in 2009 will give the new administration a unique opportunity to formulate new energy policy without risking that the lights will go out.

With its advanced point infrared combustible gas – sensing element, the new Model IR400 Infrared (IR) Point Combustible Gas Detector from General Monitors delivers reliable protection against explosive hydrocarbon gases with a low-power (4.8 W) design that requires no routine calibration. The detector measures the absorption of infrared radiation passing through a volume of gas […]

The power industry will be challenged in the coming year to chart its strategic direction and meet investor expectations, although business conditions should take a turn for the better going into 2010.

Tungsten inert gas and plasma welding require tungsten electrodes with perfectly ground and polished tips. The improved Techweld TEG – 3 Tungsten Electrode Grinder, from British company Huntingdon Fusion Techniques Ltd. uses a diamond wheel to grind tungsten electrodes longitudinally and produce the same tungsten points every time. This prevents arc flicker or wander caused […]

Many opponents of climate change policies and regulations argue that it is unfair to penalize some sectors — like power generation — more heavily than others when it’s difficult to prove precisely where specific greenhouse gas (GHG) emissions are coming from, where they’re going, and what effect they are having. Toward the ends of scientific understanding and sound public policy, scientists are making progress in isolating GHG sources and sinks.

Though the resurgence of interest in nuclear power in recent years has spurred development of an assortment of reactor designs, emphasis has mostly been on those with capacities to produce thousands of megawatt-hours of baseload power, as is the case with designs from General Electric, AREVA, Westinghouse, and Mitsubishi that are under active review by the U.S. Nuclear Regulatory Commission (NRC). Power projects using any of those designs will be developed at the cost of many billions of investment dollars.

In an effort to more than double its power capacity by 2030, the Brazilian government in November approved construction of a controversial $3.9 billion hydroelectric dam on the Madeira River, in the Amazon. When completed in 2013, the Jirau hydroelectric plant could add 3,300 MW to the country’s already massive 59 GW hydroelectric capacity.

Most forecasting reports concentrate on political or regulatory events to predict future industry trends. Frequently overlooked are the more empirical performance trends of the principal power generation technologies. Solomon & Associates queried its many power plant performance databases and crunched some numbers for us to identify those trends.

New Zealand’s biggest geothermal energy project in 20 years was officially opened in Kawerau in late November. The state-owned Kawerau Geothermal Station (Figure 5), on the North Island, adds 100 MW to the national grid.

Courtesy: Platts Data source: Platts Energy Advantage and POWERmap. All rights reserved.

The U.S. Environmental Protection Agency (EPA) has described landfills as an "effectively untapped resource" for renewable energy. The agency estimates that landfills are the source of about 12% of global methane emissions. (Methane is about 21 times more powerful as a greenhouse gas than CO2.) The EPA estimated that there were some 1,000 projects around […]

Thirty-five percent of the world’s energy comes from oil, and 96% of that oil is used for transportation. The current number of vehicles globally is estimated to be 700 million; that number is expected to double overall by 2030, and to triple in developing countries. Now consider that the U.S. has 27% of the world’s supply of coal yet only 2% of the oil. Coal-to-liquids technologies could bridge the gap between U.S. fuel supply and demand.

This spring, Xcel Energy, along with state and technology partners, is set to test what the utility says is the first battery capable of storing wind energy. The ability to store energy from renewable generation sources with variable output is key to maximizing the value of renewable power in general and to Xcel’s “smart grid” plans in particular.

The future of high-level nuclear waste disposal at Yucca Mountain remains uncertain as a new U.S. administration considers its nuclear agenda. The European Union’s policies remain just as unsettled. With new projects under construction in several countries and a nuclear ban in effect in others, no unified long-term storage approach is in sight.

On October 21, a mass of basketball-sized jellyfish managed to accomplish what activists of every stripe had failed to do: Abruptly shut down Pacific Gas & Electric Corp.’s (PG&E) 1,118-MW Diablo Canyon Unit 2 reactor in San Luis Obispo County, Calif. (Figure 8).

If the rotating equipment and boiler are a plant’s brawn, then a control system that efficiently integrates myriad plant functions is its brains. Luckily, in a power plant, we can perform a brain transplant when the control system becomes unreliable or too costly to maintain. But first, you have to justify that surgery.

Concern about the shortage of skilled workers for the energy industry has grown considerably over the past few years. Most discussions have focused on the shortage of engineers, but recently concerns about the scarcity of technical crafts have arisen as well.

Resin-Bonded Filter Cartridges Maximize Performance Pentair Industrial has introduced its Resflex Series Resin Bonded Filter Cartridges, with a unique, proprietary two-stage design. The cartridges’ outer spiral wrap efficiently removes large particles and agglomerates. This prefilter wrap provides increased surface area and intensifies cartridge strength, while eliminating residual debris. Resflex’s inner layers provide superior particle removal […]

Chances are you have endured the tedious process of removing fuel piping when maintaining just about any gas turbine, especially aero-derivative engines that are usually swapped out rather than repaired in place. One of the most time-consuming jobs after reassembling the fuel piping is checking for leaks at all the flanges. In a large frame-size turbine, that means sealing up to 64 flanges and then removing the seals after the leak testing.

Two days before Christmas, the Federal Appeals Court for the District of Columbia reinstated (PDF) the Clean Air Interstate Rule (CAIR) while the Environmental Protection Agency (EPA) makes changes to it. Judge Judith W. Rogers said, "The parties’ persuasive demonstration, extending beyond short-term health benefits to impacts on planning by states and industry with respect to […]

In the past two days, numerous news outlets have reported that president-elect Barack Obama will nominate Nobel Prize winner Steven Chu, director of the Lawrence Berkeley National Laboratory, to become the next secretary of energy. If he is officially announced and then confirmed, Chu will become the 12th individual to lead the Department of Energy. Do you remember the 11 who preceded him, starting in 1977?

The Galapagos Islands, home of the unusual flora and fauna that inspired naturalist Charles Darwin’s groundbreaking work on evolution, are striving to promote clean energy that protects the area’s unique biodiversity. Part of that effort is the 2.4-MW San Cristobal Wind Project, which displaces diesel-powered electricity generation. This new energy source will cut greenhouse gas emissions and reduce the risk of devastating diesel-fuel tanker spills in a highly protected environment.

UniStar Nuclear Energy announced on Oct. 8 that it had awarded an AREVA-Bechtel Power Corp. consortium a multi-year contract to complete detailed design engineering for a proposed AREVA U.S. Evolutionary Power Reactor (U.S. EPR) adjacent to Constellation Energy’s Calvert Cliffs Nuclear Power plant in Lusby, Md. The scope of work includes full plant specifications and […]

Geothermal energy projects are gaining steam in many parts of the western U.S., in large part because geothermal power has the advantage of being a renewable energy source that provides baseload power with no emissions and no waste by-products. One example of the latest developments in geothermal power generation is the recently completed 10-MW geothermal plant in rural Utah, which uses innovative modular power generation units.

News items of interest to power industry professionals. Economic slowdown delays Canadian IGCC plant, kills W.Va. coal-to-liquids plant. Canadian firm Alter NRG announced in late October that it would shift its corporate focus from internally led project development to technology sales, in response to the global economic slowdown and turbulent capital markets. Among the projects […]

Wind power is becoming a mainstream energy source that U.S. utilities are tapping into nationwide as a means of adding clean, domestically sourced energy to balance their generating portfolios. To identify where wind will take us,POWER’s senior editor talked to experts from diverse industry stakeholders about current and future developments.

For the power engineer, delivering an instantaneous and consistent power supply can be an elusive goal. Yet without it, grid frequency regulation is impossible. Today, frequency regulation is an ancillary service bought by the hour, the day prior to utilization, and dispensed on an as-needed basis by dispatch communiqués and provided by the ancillary service […]

The Steel Winds project in Lackawanna, New York, was selected as a POWER 2007 Top Plant because of its unusual location (a former steel mill and Superfund site) and because it was the first commercial deployment of the Clipper Windpower 2.5-MW turbine. That report was written just as the project entered commercial service but before a major gearbox problem was identified. For many new designs, it isn’t a question of if problems will occur but of how the manufacturer responds when problems inevitably do occur. For its handling of Liberty’s problem, Clipper Windpower gets an "A."