wind
The world can be powered by alternative energy, using today’s technology, in 20-40 years
If someone told you there was a way you could save 2.5 million to 3 million lives a year and simultaneously halt global warming, reduce air and water pollution and develop secure, reliable energy sources — nearly all with existing technology a…
Outsmarting the wind
RICHLAND, Wash. — Meteorological equipment typically used to monitor storms could help power grid operators know when to expect winds that will send turbine blades spinning, as well as help them avoid the sudden stress that spinning turbines c…
Syracuse University researchers contribute new ideas to enhance efficiency of wind turbines
One issue confronting the efficiency of wind as a promising renewable energy source is the wind itself — specifically, its changeability. While the aerodynamic performance of a wind turbine is best under steady wind flow, the efficiency of the blad…
The initial and final state of SNe Ia from the single degenerate model
Type Ia supernovae (SNe Ia) play an important role as cosmological distance indicators and have been used successfully to determine cosmological parameters, which resulted in the discovery of the accelerating expansion of the Universe. However, the …
Enhancing the efficiency of wind turbines
WASHINGTON, D.C., November 21, 2010 — A milestone in the history of renewable energy occurred in the year 2008 when more new wind-turbine power generation capacity was added in the U.S. than new coal-fired power generation. The costs of producing po…
APS releases report on renewable energy and the electricity grid
WASHINGTON, D.C. — U.S. policymakers must focus more closely on developing new energy storage technologies as they consider a national renewable electricity standard, according to one of the principal recommendations in a newly released report, Int…
Global warming reduces available wind energy
Washington, D.C. (November 9, 2010) — A switch to wind energy will help reduce greenhouse gas emissions — and reduce the global warming they cause. But there’s a catch, says climate researcher Diandong Ren, a research scientist at the University o…
Slight change in wind turbine speed significantly reduces bat mortality
While wind energy has shown strong potential as a large-scale, emission-free energy source, bat and bird collisions at wind turbines result in thousands of fatalities annually. Migratory bats, such as the hoary bat, are especially at risk for collis…
Scarcity of new energy minerals will trigger trade wars
Boulder, CO, USA – It’s not hard to argue in favor of alternatives to fossil fuels these days, but one popular argument — domestic energy security — may be standing on very shaky legs. A lot of rare metals are needed to make photovoltaic panels,…
2 THEMIS probes redirected to moon to study magnetosphere, solar wind interactions
Two micro-satellites originally launched into Earth’s orbit in 2007 by NASA have been redirected by University of California, Berkeley, scientists toward new orbits around the moon, extending study of the earth and moon’s interaction with the so…
