Photo Voltaic Technology — The State of the Art

Science tells us that every square meter of the earth’s surface, when exposed to direct sunlight, receives about 1000 watts (1 kilowatt) of energy from the sun’s light. Depending on the angle of sunlight, which changes with the time of day, and the geographical location, the power of the sun’s light will be somewhat more or less than 1 kilowatt-hour per hour for every square meter of the earth’s surface exposed to the sun. Of this solar energy, about 523 watts is in the infra-red spectrum and the ultra-violet portion accounts for about 27 watts. The remaining 440 watts is produced by the octave comprising the visible range.
The chart pictured below depicts the current state of the art for Photovoltaic (PV) solar cells. PV research focuses on boosting solar cell conversion efficiencies, lowering the cost of solar cells, modules, and systems, and improving the reliability of PV components and systems. Accelerating the integration of PV technology is an essential part of global sustainability. Click on the chart reproduced here for a full size copy.

Best Research Cell Efficiencies
Reported timeline of solar cell energy conversion efficiencies (from National Renewable Energy Laboratory (USA))

Consider the Source




3D Printing with 6,500 Live Silkworms

Researchers at the Massachusetts Institute of Technology (MIT) have accomplished a stunning architectural feat using silkworms. To construct this “Silk Pavillion,” 6,500 live silkworms were guided via computer, creating a 3D print of the domed structure. Students at MIT studied the worms’ spinning patterns and tested whether they could control them by altering the worms’ environment.

Consider the Source




Test Firing: 3D-Printed Rocket Injector

NASA has successfully tested its first rocket engine component made through 3D printing. On Thursday, NASA subjected its new rocket engine injector to a series of high-pressure fire tests involving liquid oxygen and gaseous hydrogen, demonstrating that additive manufacturing (its official name) could one day help the agency build the next generation of rockets faster and at lower cost.

Additive manufacturing uses layers of metallic powder traced in specific patterns by lasers. The technique isn’t too far removed from traditional 3D printing, except it uses high-powered laser beams. While an engine injector is normally one of the most expensive components of a rocket engine to produce, additive manufacturing not only reduces development time from over a year to a number of months, it also cuts costs by more than 70 percent. Following the successful test, NASA says it will look to scale-up and establish production requirements for the injector, helping it “demonstrate the feasibility of developing full-size, additively manufactured parts.” However, the agency says has no plans to test its printed components in a live test flight until 2017.

Consider the Source




3d Printing with Titanium and Aluminum

Two 3d printed metal samples made with EOS 3d printers. A Formula 1 race car’s custom heat exchanger and an artificial joint.

Consider the Source




Crossing the U.S. on Ten Gallons?

URBEE is a return to fundamentals, a rethink of traditional automotive design and manufacturing. As a species endangered by our own actions, we must quickly learn to stop burning fossil fuels. Surely, the ultimate goal of Design is to serve the ‘public good’. Therefore, corporations and individual designers have a responsibility to offer products that are not only useful, but in balance with the environment.

URBEE is now crowd-funded to create the greenest car on Earth. A first prototype was completed in 2013. It became the first car to have its body 3D printed. The team recently initiated a second prototype, called URBEE 2. They are embracing Digital Manufacturing as essential to the design of an environmental car. Engineered to safely mingle with traffic, the two passenger vehicle will have its entire exterior and interior 3D printed.

Consider the Source




Introducing Your Thesis Advisor

This podcast is one of the first seven Keynote Addresses, given by the Aevia Group’s Founder and Lead Trustee, to inspire the building of a next generation university and charitable service. This address specifically addresses the work of the Fact Acquisition and Dissemination (FAD) team and it’s unique curriculum focus.
Consider the Source




Tiny Solar House

Solar tiny house designed by Michael Janzen and built by Bill Brooks.

PART I

PART II

PART III

PART IV

Consider the Source




The Politics of Tiny Houses

As much as he enjoys talking about design, what Jay Scaafer really wanted to talk about in this interview was the politics of tiny houses. Why building and zoning codes are stacked against tiny houses, how the costs of purchase and upkeep compare to the big houses he calls “debtors’ prisons”, and why, when the Big One shakes the land around San Francisco Bay, he’d rather be in his tiny house than anywhere else.




Joseph and Aravinda’s Tiny House on Wheels

Tory Smith built this little house on wheels for newlyweds Joseph and Aravinda.

Consider the Source




Little House on the Trailer

Dee Williams decided to downsize from a 1,500 square foot home to a 84 square foot home after a trip to Guatemala. She built her current home, “The Little House,” herself for about $10,000. With a propane tank for heat and electricity coming from solar panels, Williams cost of living runs extremely low.

Consider the Source