On the path to writing his Ph.D. dissertation, Lucio Milanese made a discovery—one that refocused his research, and will now likely dominate his thesis.
Plasma Physics
Jan 13, 2021
0
778
Researchers from Trinity College Dublin have shed new light on the formation mechanisms of a rare earth-bearing mineral that is in increasingly high demand across the globe for its use in the green energy and tech industries.
Materials Science
Dec 17, 2020
0
33
Of course, there is no weather in our sense of the word in space—nevertheless, soil can also "weather" in the vacuum of space if it is constantly bombarded by high-energy particles, such as those emitted by the sun. The ...
Space Exploration
Nov 30, 2020
1
47
Twenty years ago, wind energy was mostly a niche industry that contributed less than 1% to the total electricity demand in the United States. Wind has since emerged as a serious contender in the race to develop clean, renewable ...
General Physics
Nov 24, 2020
20
91
A Japanese research team elucidated the microscopic mechanism in which amorphous silica becomes negatively charged as a vibrational energy harvester, which is anticipated to achieve self-power generation without charging, ...
Condensed Matter
Nov 11, 2020
0
14
Renewable energy targets (RETs) may be too blunt a tool for ensuring a sustainable future, according to University of Queensland-led research. Ph.D. candidate Scott Spillias, from UQ's School of Earth and Environmental Sciences, ...
Environment
Oct 28, 2020
14
48
New technology to be used in lithium batteries can make them charge faster. The material graphite that was often used, already had a successor that could not further be improved, was the assumption. Until now, as researchers ...
Nanomaterials
Sep 28, 2020
0
8
Over the past few decades, scientists have become increasingly aware of the adverse effects that human activities are having on the environment and climate on Earth. These environmental and climatic changes have several consequences, ...
A vast transition from fossil fuels to renewable energy is crucial to slowing climate change. But building solar panels, wind turbines and other renewable energy infrastructure requires mining for materials. If not done responsibly, ...
Environment
Sep 02, 2020
18
29
Using the Atacama Large Millimeter/submillimeter Array (ALMA), astronomers from Japan have probed a nearby starburst galaxy known as NGC 1482. They detected a molecular gas outflow that could be essential to improving the ...
Wind power is the conversion of wind energy into a useful form, such as electricity, using wind turbines. At the end of 2008, worldwide nameplate capacity of wind-powered generators was 121.2 gigawatts (GW). Wind power produces about 1.5% of worldwide electricity use, and is growing rapidly, having doubled in the three years between 2005 and 2008. Several countries have achieved relatively high levels of wind power penetration, such as 19% of stationary electricity production in Denmark, 11% in Spain and Portugal, and 7% in Germany and the Republic of Ireland in 2008. As of May 2009, eighty countries around the world are using wind power on a commercial basis.
Large-scale wind farms are connected to the electric power transmission network. Smaller turbines are used to provide electricity to isolated locations. Utility companies increasingly buy back surplus electricity produced by small domestic turbines. Wind energy as a power source is attractive as an alternative to fossil fuels, because it is plentiful, renewable, widely distributed, clean, and produces no greenhouse gas emissions; however, the construction of wind farms (as with other forms of power generation) is not universally welcomed due to their visual impact and other effects on the environment.
Wind power is non-dispatchable, meaning that for economic operation all of the available output must be taken when it is available, and other resources, such as hydropower, and standard load management techniques must be used to match supply with demand. The intermittency of wind seldom creates problems when using wind power to supply a low proportion of total demand. Where wind is to be used for a moderate fraction of demand, additional costs for compensation of intermittency are considered to be modest.
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