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Energy

Technologies for sustainable and renewable energy


Butterflies Show How to Improve Solar Concentrators

Written by , on August 17, 2015

Researchers from the University of Exeter have shown that, by mimicking the posture and wing structure of Cabbage White butterflies, they can vastly increase the efficiency of solar concentrators.  Read more »

Tidal Fence Generates Power in Shallow Water

Written by , on August 10, 2015

Engineers at the University of Oxford have developed an innovative horizontal tidal turbine that promises to be significantly more effective than existing axial flow designs.  Read more »

Coating Increase Solar Panel Efficiency by 30%

Written by , on August 10, 2015

Researchers at the University of California Riverside think they’ve developed a technology that they say can boost the conversion efficiency of the panels by at least 30%.  Read more »

US Army Claims Solar Cell Breakthrough

Written by , on July 8, 2015

U.S. Army researchers at the Redstone Arsenal have developed a new type of solar panel which they say is a significant breakthrough in solar energy production being much thinner, more efficient and cheaper than current panels.  Read more »

10 Years of Progress in Renewables

Written by , on June 19, 2015

In its 2015 “Global Status Report”, REN21, the global renewable energy policy network, has summarised the increase in renewable energy capacity in the 10 years from 2004 to 2014. In 2004, global renewable power capacity (excluding hydro) was 85 gigawatts. In 2014, it reached 657 gigawatts.  Read more »

Owl Wing Design Could Make Wind Turbines Quieter

Written by , on June 16, 2015

Conservationists are concerned about the effects of the noise of wind turbines on wildlife and some people who live near turbines complain about their noise. Researchers led by Nigel Peake at the University of Cambridge have turned to owls for ideas about how to reduce the noise. Owls are famously silent predators, able to surprise […]  Read more »

Cheaper, Silent, Bladeless Wind Turbines

Written by , on May 17, 2015

In 1940, the newly built Tacoma Narrows Bridge began to vibrate violently and soon collapsed in windy conditions. Ever since, engineers have focused on ways of stopping their structures vibrating in this way. Now, a group of Spanish engineers is working to harness the energy potential of vibrating structures. Instead of using the wind to […]  Read more »

Passive Computer Cooling System Could Save Billions

Written by , on May 1, 2015

Engineers at the University of Alabama are testing a passive cooling system for computer processors that they believe could save U.S. consumers more than $6.3 billion a year in energy costs associated with running their computer cooling fans.  Read more »

Fueling Vehicles with Hydrogen from Corn Waste

Written by , on April 8, 2015

Researchers have found a way to make hydrogen fuel by a biological method that uses cheap and abundantly available corn stover (the stalks, cobs and husks) and greatly reduces the time it takes to produce the fuel.  Read more »

Long Lasting Solar Thermal Material Absorbs 90% of Light

Written by , on November 7, 2014

A new nanoparticle-based material for concentrating solar power plants can absorb and convert to heat more than 90% of the sunlight falling on it, withstand temperatures of more than 700ºC and survive for many years.  Read more »