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The 'artificial leaf' created by Daniel G. Nocera, Ph.D. and his team now has self-healing...

Back in 2011, scientists reported the creation of the “world’s first practical artificial leaf” that mimics the ability of real leaves to produce energy from sunlight and water. Touted as a potentially inexpensive source of electricity for those in developing countries and remote areas, the leaf’s creators have now given it a capability that would be especially beneficial in such environments – the ability to self heal and therefore produce energy from dirty water.  Read More

Spectrolab has achieved a record 37.8 percent efficiency with a new multi-junction solar c...

Spectrolab, a Boeing subsidiary known for the manufacture of solar cells for satellites and spacecraft, has in recent years turned its attention to terrestrial solar cells to tap into the expanding alternative energy market. Now the California-based company has claimed a new solar cell efficiency record of 37.8 percent for a ground-based multi-junction cell without solar concentration.  Read More

Researchers at University of Texas at Arlington have developed a novel means of creating m...

Most previous methods of producing methanol from carbon dioxide have involved lots of electricity, high pressures and high temperatures, and used toxic chemicals or rare earth elements like cadmium or tellurium. A team of researchers at the University of Texas at Arlington (UTA) has developed a new method they claim is safer, less expensive, and simpler than current approaches and can be scaled up to an industrial scale to allow some of the CO2 emitted from electrical power plants to be captured and converted into a useful fuel.  Read More

A prototype water heater system that uses cold water to make hot water pictured with Slate...

Apart from heating and cooling the house, water heating is one of the biggest energy drains in the average home. But what if you could literally use cold water to create hot water? That’s just what San Diego inventor Hal Slater claims to have done with the creation of a water heater system that promises to improve water heating efficiency by as much as 50 to 100 percent.  Read More

Some of Fraunhofer's printed thermoelectric generators, wrapped around a sample component

Thermoelectric materials, putting it simply, are able to generate electricity via differences in temperature. If thermoelectric felt were used to make a jacket, for instance, it could generate a current using the temperature gradient between the warm interior and cold exterior of the garment. Like many such promising technologies, however, the cost of thermoelectrics is something of an issue ... although thanks to a new process developed at Germany’s Fraunhofer Institute for Material and Beam Technology, that might not be the case for much longer.  Read More

Philips 22 W (100-W incandescent equivalent) LED light bulb

Philips has announced that its 22-watt LED lightbulb is the first 100-watt tungsten equivalent bulb to have been awarded Energy Star certification. Often referred to as the A21, which is actually just one of several standard forms for light bulbs that this bulb happens to conform to, Philips' 22-W bulb puts out "nearly" 1,800 lumens for an efficacy of about 82 lumens/watt (lm/W). It's a fine spec, but not too dissimilar to the competition, which raises the question of why Philips' product has been singled out.  Read More

Dutch researchers have developed the EWICON, a bladeless windmill with no moving parts tha...

Wind energy may be one of the more sustainable sources of power available, but the spinning blades of conventional wind turbines require regular maintenance and have attracted criticism from bird lovers. That might explain why we've seen wind turbine prototypes that enclose the blades in a chamber or replace them entirely with a disc-like system. But researchers in the Netherlands set out to eliminate the need for a mechanical component entirely and created the EWICON, a bladeless wind turbine with no moving parts that produces electricity using charged water droplets.  Read More

Michael Adams, of UGA's Bioenergy Systems Research Institute, helped develop a microorgani...

While much research is being done on capturing carbon dioxide emissions at their source to reduce the amount expelled into the atmosphere, researchers at the University of Georgia’s Bioenergy Systems Research Institute have taken a different approach to tackle the problem. Taking a leaf out of the process used by plants to convert CO2 into something useful, they have uncovered a way to take CO2 from the atmosphere and transform it into useful industrial products, including, potentially, fuel.  Read More

The new solar cells can be easily recycled in water at room temperature

Researchers at Georgia Institute of Technology and Purdue University have developed new solar cells based on natural substances derived from plants, including trees. The organic solar cells have an efficiency of 2.7 percent – a new high for cells on substrates derived from renewable raw materials – and can be easily recycled.  Read More

North Carolina 4th-grade students have raised enough funds on Kickstarter to allow their c...

After looking into the pros and cons of nine methods of electricity production (including coal, geothermal, biomass, and solar), a group of 9 and 10 year-olds from Central Park School for Children in Durham, North Carolina decided that their classroom should be powered using only energy from the sun. They hit Kickstarter at the beginning of this month with a modest funding goal of just US$800 to help finance the installation of a small PV panel array – a target that was smashed in less than a day.  Read More

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