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Energy

Technologies for sustainable and renewable energy


New Way of Generating Electricity from Heat

Written by , on May 27, 2014

Researchers at MIT and Stanford demonstrated a new way to transform waste heat into electricity, particularly in situations where the temperature gradient is small.  Read more »

Aviation Fuel from CO2, Water and Sunlight

Written by , on May 10, 2014

The Solar-Jet project has successfully demonstrated the entire production chain for renewable kerosene obtained directly from just sunlight, water and carbon dioxide captured from the air. The process also has the potential to produce other types of fuel, such as diesel, gasoline or pure hydrogen, for transport applications in a more sustainable way. The project […]  Read more »

Efficient New Solar Cell Material Can Also Emit Light

Written by , on April 27, 2014

Scientists at Nanyang Technological University have developed a solar cell material which can emit light as well as converting light to electricity. The new cells not only glow when electricity passes through them but they can also be customised to emit different colours.  Read more »

New Wind Turbine Design Based on Bird Wings

Written by , on April 15, 2014

The German industrial automation and control company, Festo, has developed a dual wing generator. In contrast to conventional small wind power stations, the system uses two pairs of opposing wings instead of rotor blades to generate power.  Read more »

More Efficient, Self-cleaning Solar Cells

Written by , on March 17, 2014

Researchers from Changchun University of Science and Technology, Xi’an Technological University and Cardiff University have found that a patterned layer on top of the active part of a solar panel can avoid the energy losses due to reflection from the surface. They have devised an approach to the lithographic process used to “print” microelectronic circuits […]  Read more »

Solar Power at Night?

Written by , on March 11, 2014

Physicists at the Harvard School of Engineering and Applied Sciences, led by Federico Capasso, a world-renowned expert in semiconductor physics, photonics and solid-state electronics, have proposed a device that would harvest energy from Earth's infrared emissions into outer space. The device would consist of a "hot" plate at the temperature of the Earth and air, […]  Read more »

Cold-tolerant, Oil-Producing Sugarcane

Written by , on February 26, 2014

A team led by researchers at the University of Illinois is using recent advances in plant biotechnology to increase sugarcane's geographic range, boost its photosynthetic rate and turn it into an oil-producing crop for biodiesel production. The team introduced genes into the sugarcane that boost natural oil production in the plant's stems to about 1.5%.  […]  Read more »

Drones to Collect Solar and Wind Energy

Written by , on February 12, 2014

New Wave Energy, an English company, has plans to build a high altitude aerial power plant, consisting of networks of unmanned drones that can harvest solar and wind energy and transmit it wirelessly to receiving stations on the ground. As sunlight radiates down to the Earth's surface some of its energy is absorbed into the […]  Read more »

Power from a “Wave Carpet”

Written by , on February 7, 2014

University of California Berkeley professor Reza Alam and his team have developed a "wave carpet" which can extract the energy of ocean waves and turn it into electricity or fresh water The "wave carpet" is a rubber mat which sit on top of a grid of hydraulic actuators, cylinders and pumps, on a muddy ocean […]  Read more »

Using Steam Engine Technology for Power Storage

Written by , on November 30, 2013

A group of Australian engineers has formed a company, Terrajule, to develop a novel energy storage solution. The Terrajoule system combines concentrated solar thermal energy, steam engines and an integrated storage system using an insulated pressure vessel. The concentrated solar thermal energy is used to produce steam. Since it is impractical to store steam for […]  Read more »