New LED streetlight design curbs light pollution
Streetlights illuminate the night, shining upon roadways and sidewalks across the world, but these ubiquitous elements of the urban environment are notoriously inefficient and major contributors to light ...
Nanostructures triple organic solar cells efficiency
Princeton researchers have found a simple and economic way to nearly triple the efficiency of organic solar cells, the cheap and flexible plastic devices that many scientists believe could be the future of ...
Solar energy gets a boost: Work on 'singlet fission' can increase solar cell efficiency by as much as 30 percent
A perspective article published last month by University of California, Riverside chemists in the Journal of Physical Chemistry Letters was selected as an Editors Choice—an honor only a handful of research ...
Researchers achieve higher solar-cell efficiency with zinc-oxide coating
(Phys.org) —Engineering researchers at the University of Arkansas have achieved the highest efficiency ever in a 9 millimeter-squared solar cell made of gallium arsenide. After coating the cufflink-sized ...
Peugeot unveils petrol hybrid using compressed air
French carmaker PSA Peugeot Citroen unveiled Tuesday a petrol hybrid engine that stores energy using compressed air which it hopes will be a game-changing technology to improve energy efficiency.
'Superstructured' solar cells achieve record efficiency of 10.9%
Two for one in solar power
Solar cells offer the opportunity to harvest abundant, renewable energy. Although the highest energy light occurs in the ultraviolet and visible spectrum, most solar energy is in the infrared. There is a ...
Obama to propose 'national plan' on climate change
US President Barack Obama will give a major speech on climate change Tuesday in which he will propose a "national plan" to curb carbon pollution despite resistance from Congress.
Big beats bolster solar cell efficiency
(Phys.org) —Playing pop and rock music improves the performance of solar cells, according to new research from scientists at Queen Mary University of London and Imperial College London.
World set to heat up despite clean-energy efforts, IEA warns
Global warming is set to heat up with temperatures rising to nearly twice targets set by the United Nations, the International Energy Agency warned on Tuesday.
Australia carbon tax repeal a 'perfect storm of stupidity'
Australia's axing of its carbon tax and a plan to replace it by offering incentives to polluters to increase their energy efficiency is "the perfect storm of stupidity", scientists and academics argue.
Team unveils foldable micro electric car, Armadillo-T (w/ Video)
Looking for a parking space for hours at a busy shopping mall or being stuck on roads jammed with cars releasing large amounts of carbon dioxide are all-too-familiar scenes for city dwellers.
Graphene provides efficient electronics cooling
A layer of graphene can reduce the working temperature in hotspots inside a processor by up to 25 percent – which can significantly extend the working life of computers and other electronics. An international ...
Germany most energy efficient nation
Germany is the world's most energy efficient nation with strong codes on buildings while China is quickly stepping up its own efforts, an environmental group said Thursday.