Spray-On Solar-Power Cells Are True Breakthrough

May 30, 2011 by  
Filed under Wind and Solar

SOLAR REVOLUTION – Solar Paint Ted Sargent is a pioneer in solar science. He’s working on solar technology that could literally be woven into every aspect of daily life, from our clothes to our roads, using what is known as a spray-on solar cell. The implications for our energy systems are profound. As Ted says, “Solar energy is not just an exciting science problem, but an incredibly important human problem.” Ted is working on solar nanotechnology with the potential to make solar energy very cheap and allow society to collect it on a huge scale. Currently, solar technology costs more to build and install than most people are willing to pay. Solar panels, for example, the technology most commonly associated with solar energy, are installed on your rooftop. The cost of collecting one kilowatt per hour of solar energy (about a third of the electricity an average household uses on any given day) is about 000. Not only are panels expensive to install, they capture only the visible portion of the sun’s rays so they work only on sunny days. Ted’s focus is the infrared portion of the sun’s rays which accounts for more than half of all solar energy. What’s more, infrared energy is available to us even in cloudy weather. A quantum dot is a semiconductor nanostructure that confines the motion of conduction band electrons, valence band holes, or excitons (bound pairs of conduction band electrons and valence band holes) in all three spatial directions. The confinement can be due to

LG CES 2010: GD510 Solar Powered Cell Phone

May 30, 2011 by  
Filed under Wind and Solar

“A truly “”green”” phone, the LG GD510 features many innovative features: – Built-in solar panel for charging the phone – 10 minutes of sun = 2 min 15 sec of talk time or 180 min standby – Eco-calculator shows amount of CO2 emissions saved by using solar power – Plugged in, the phone has a reminder to unplug the charger once it’s fully charged – Packaging is made from recycled paper & soy ink – The phone does not contain any polyvinyl chloride (PVC)”

Solar Revolution – Sphelar : Spherical Solar Cell : DigInfo

May 20, 2011 by  
Filed under Wind and Solar

movie.diginfo.tv DigInfo News Embracing the move towards renewable energy sources, Kyosemi have revolutionized the design of the traditional solar cell, increasing it’s power generation efficiency and paving the way for innovative applications and a more economical use of raw materials. Sphelar is a spherical micro solar cell, which unlike traditional flat solar cells, can effectively harness reflected and diffused solar light as well as direct light from all directions. Each cell, is 1 to 1.5 mm and can be connected in parallel or in series, allowing for a limitless range of shapes and uses including flexible solar cells, round solar cells, or power-generating windows for buildings or offices while maintaining a certain level of transparency. Also, compared to the production process for traditional solar cells there is a dramatic reduction in the amount of wasted silicon. “In the process of producing spherical spolar cells, molten silicon is used. It’s dripped from an elevated position, and crystallizes as a sphere in mid-air, so using this process no silicon is wasted in the production of solar cells.” Kyosemi have also developed the SphelarVoice which is a battery-free wireless audio optical information system that receives information via infrared rays. The SphelarVoice uses an array of LEDs to emit a light signal which is recieved by the solar cells, converted into an electrical signal on the battery-free wireless handset and sent to the speaker.

Solar Cell

May 2, 2011 by  
Filed under Wind and Solar

Purchase: hilaroad.com An explanation of how solar cells work. Suitable for an introduction to solar energy.

See Through Solar Cells

May 1, 2011 by  
Filed under Wind and Solar

Fifty years inthe making, solar-power cells are still flat, rigid, and ugly. But new research shows how they could be made lightweight, flexible, and transparent. These innovations could expand solar-cell use to things like solar fabrics and power generating windows. www.sciencentral.com