The rotor and mast of a wind turbine can oscillate and this plays a big role in equipment development and maintenance. Up to now, this analysis has only been possible at discrete points located directly on equipment. Engineers are now using modern information technology to remotely measure the oscillatory pattern over the entire structure of the facility from several hundred meters away.
For 15 years trucks have been hauling decades...
Panasonic Corp. is considering setting up a new...
A new study from the International...
A multi-institutional team reports that it can increase sugarcane’s geographic range, boost its photosynthetic rate by 30% and turn it into an oil-producing crop for biodiesel production. These are only the first steps in a bigger initiative that will turn the highly productive sugarcane and sorghum crop plants into even more productive, oil-generating plants.
The Ivanpah Solar Electric Generating System, which sprawls across roughly 5 square miles of federal land near the California-Nevada border, formally opened on Feb. 13 after years of regulatory and legal tangles ranging from relocating protected tortoises to assessing the impact on Mojave milkweed and other plants. The plant, the world’s largest of its type, will test a balance between conservation and green energy growth.
Global gas manufacturer and supplier Matheson Tri-Gas Inc. has completed the acquisition of Continental Carbonic Products Inc., an Illinois-based manufacturer and supplier of dry ice and liquid carbon dioxide. Continental Carbonic Products is the largest independent supplier of dry ice in the U.S. and will strengthen Matheson’s North American business.
Instrumentation company FEI has acquired Lithicon AS of Trondheim, Norway, and Canberra, Australia. Lithicon provides digital rock technology services and pore-scale micro computed tomography (µCT, or microCT) equipment to oil and gas companies worldwide. In conjunction with the acquisition, FEI has obtained the helical scan microCT product and associated software from the Australia National Univ.
According to a study by Pacific Northwest National Laboratory, China can build its way to a more energy efficient future by improving the rules regulating these structures like houses, apartments and retail stores. The scientists created a unique model that projects how much energy can be saved with changes to China's building energy codes, and those savings were significant.
Construction on a new energy research facility at Pacific Northwest National Laboratory (PNNL) will start this April. The project, valued at approximately $10 million, will build a facility that will house a broad variety of energy research and PNNL's campus sustainability program. Research there will focus on power grid reliability and resiliency, integration of renewable energy onto the grid and reducing energy use in buildings.
What do champion surfers who gathered at last week’s Mavericks Invitational have in common with a Univ. of California, Berkeley engineer? They all are looking to harness the power of big ocean waves. But the similarities end there. For assistant professor Reza Alam, an expert in wave mechanics, the seafloor “carpet” he is proposing will convert ocean waves into usable energy.
Wind energy experts have completed a comprehensive study to understand how wind power technology can assist the power grid by controlling the active power output being placed onto the system. They find that wind power can do this by adjusting its power output to enhance system reliability, using forms of active power control such as synthetic inertial control, primary frequency control and automatic generation control regulation.
Installation of electric vehicle charging ports at some companies has not kept pace with soaring demand, creating thorny etiquette issues in the workplace. The shortage has created incidents of "charge rage" among drivers, with vehicles being unplugged while charging. But adding chargers is expensive.
Aircraft maker Boeing Co., Etihad Airways, the oil company Total and others say they will work together on a program to develop an aviation biofuel industry in the United Arab Emirates. Etihad ran a 45-minute demonstration flight Saturday in a Boeing 777 partially powered by aviation biofuel produced in the UAE.
By replacing platinum with molybdenum in photoelectrochemical cells, scientists from two Swiss labs have developed a cheaper and scalable technique that can greatly improve hydrogen production through water splitting as a means of storing solar energy.
America's newest, most expensive coal-fired power plant is hailed as one of the cleanest on the planet, thanks to government-backed technology that removes carbon dioxide and keeps it out of the atmosphere. But once the carbon is stripped away, it will be used to do something that is not so green at all. It will extract oil.
For millions of homes, plants, wood and other types of “biomass” serve as an essential source of fuel, especially in developing countries, but their mercury content has raised flags among environmentalists and researchers. Scientists are now reporting that among dozens of sources of biomass, processed pellets burned under realistic conditions in China emit relatively low levels of the potentially harmful substance.
Researchers in Lyon, a French city famed for its cuisine, have discovered a quick-cook recipe for copious volumes of hydrogen that involves water, rock, aluminum oxide and extreme pressure. The breakthrough suggests a better way of producing the hydrogen that propels rockets and energizes battery-like fuel cells.
The solar panel installer SolarCity is beginning to address one of solar power's big drawbacks: The sun doesn't always shine. The solution: big battery packs that will provide backup power while lowering electric bills. The supplier: electric car maker Tesla Motors, whose CEO Elon Musk is also the chairman of SolarCity.
Scientists at The Univ. of Texas at Austin have developed a new method to estimate gas production from hydraulically fractured wells in the Barnett Shale. The approach, which uses a simple physics theory called scaling, is intended to help the energy industry accurately identify low- and high-producing horizontal wells, as well as accurately predict how long it will take for gas reserves to deplete in the wells.
The first trickle of fuels made from agricultural waste is finally winding its way into the nation's energy supply. But the full benefits of this fuel source remain many years away, and ethanol, which was meant to be a stop-gap until non-food sources of fuel were found, has been far more damaging to the environment than the government predicted.
According to a study published by scientists at the Potsdam Institute for Climate Impact Research, the strategy of assigning a price to global carbon nanotubes emissions could generate a revenue of $32 trillion over the 21st century, exceeding by far the $12 trillion of lost profits from fossil fuel owners.
A set of new building technologies introduced by an alliance of Swiss companies makes it possible to heat and cool buildings without the emission of carbon dioxide. One initial key element of the system is a hybrid collector, built into the roof construction, that serves as a photovoltaic system delivering both solar power and heat that is fed to an underground accumulator.
The Swiss Federal Institute of Technology in Lausanne’s new convention center, opening in April 2014, is being equipped with a glass façade composed of dye solar cells. The project, a world’s first for an exterior window, leverages the potential of dye-sensitive solar cells known as Graetzel cells, which are indifferent to the angle of incidence of light that hits them.
In waters off Long Beach, Seal Beach and Huntington Beach—some of the region's most popular surfing strands and tourist attractions—oil companies have used fracking at least 203 times at six sites in the past two decades. This discovery made from drilling records and interviews shows that offshore fracking is more widespread and frequent that state officials believed.
Materials in lithium ion battery electrodes expand and contract during charge and discharge. These volume changes drive particle fracture, which shortens battery lifetime. A group of scientists has quantified this effect for the first time using high-resolution 3D movies recorded using x-ray tomography at the Swiss Light Source.
Experts from the Univ. of Maryland and a leading university in Spain demonstrate in a new study which sectors could put the entire U.S. economy at risk when global oil production peaks. This multi-disciplinary team recommends immediate action by government, private and commercial sectors to reduce the vulnerability of these sectors.
New research from the National Renewable Energy Laboratory has quantified the potential impacts of increasing wind and solar power generation on operators of fossil-fueled power plants in the West. To accommodate higher amounts of wind and solar power on the electric grid, utilities must ramp down and ramp up or stop and start conventional generators more frequently to provide reliable power for their customers—a practice called cycling.
According to a recent study published by the National Science Foundation (NSF), businesses spent more on research and development (R&D) in 2011 than they did in 2010. The figures revealed that during 2011, companies in manufacturing industries performed $201 billion, or 68%, of domestic R&D.
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