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Energy

Technologies for sustainable and renewable energy


Concentrated Solar Heat in Developing Countries

Written by , on May 30, 2016

The largest energy demand in many communities is for producing heat, for example for cooking or water sterilization. Using electricity, if available, risks regular blackouts and high costs and wood contributes to deforestation and indoor air pollution.
Using concentrated solar power directly, without the need for expensive and complex components, is ideal for many developing communities energy needs.  Read more »

Process Developed for Mass Producing More Efficient Solar Cells

Written by , on May 12, 2016

A laser-based manufacturing process developed by the Fraunhofer ISE in Freiburg, Germany promises to revolutionise the photovoltaics market. For the first time point-contacted solar cells can be manufactured in series.  Read more »

New Turbine Could Draw Energy from Ocean Currents

Written by , on April 5, 2016

Researchers at the Okinawa Institute of Science and Technology Graduate University have developed a novel ocean current turbine which, they say, can match the efficiency of wind turbines while providing much more consistent and reliable output and taking up no land.  Read more »

Giant Wind Turbine Blades Could Cut Costs

Written by , on February 15, 2016

A research team led by the University of Virginia is developing a low-cost 50 megawatt wind turbine, with 200 metre blades, for use offshore.   Read more »

The Return of the Incandescent Lightbulb?

Written by , on January 18, 2016

Researchers at the Massachusetts Institute of Technology have found a way to modify old-fashioned tungsten-filament lightbulbs to potentially make them far more efficient than current LEDs.  Read more »

Coating Improves Solar Panels at Multiple Angle

Written by , on December 17, 2015

Engineers from King Abdullah University of Science & Technology in Saudi Arabia and Taiwan’s National Central University have developed a a glass coating which they say enables panels to absorb sunlight from multiple angles, significantly boosting the cell’s overall efficiency.  Read more »

New Approach Promises Cheaper Solar Thermal Storage

Written by , on November 5, 2015

Engineers at Oregon State University have developed a new approach, using thermochemical storage, in which chemical transformation is used in repeated cycles to hold heat, for the storage of concentrated solar thermal energy which could reduce its cost and make it more practical for wider use.  Read more »

Coating Greatly Improves Efficiency of Solar Hot Water

Written by , on October 30, 2015

Researchers at the Technological Institute of the Lagoon in Mexico have developed a superconducting coating which they say increases the efficiency of solar water heaters by up to 70%. The coating material is a type of paint, classified as an “ink” because of its quick-setting property, that is built up in several layers. The first […]  Read more »

Improving Power Plant Efficiency with Sauce Bottle Coating

Written by , on October 1, 2015

A new coating, if installed globally in steam-driven power stations, could have the same CO2-reducing impact as all solar and wind power installations combined.  Read more »

Capturing Energy from Braking London Tube Trains

Written by , on September 27, 2015

Transport for London has been trialling a new system that collects and recycles waste energy from London’s Underground train brakes. It is estimated that the technology could save as much as £6 million ($au 13 million) a year.  Read more »