HP To Install 1 Megawatt Solar Rooftop

Hewlett-Packard has announced it will install a 1-megawatt solar array in its San Diego facility. The installation will be made up of 5,000 panels on seven buildings. It’s a large solar array, but smaller than Google’s 1.6-megawatt solar array, which is thought to be the largest corporate installation to date in the United States.

Google Wants To Make Clean Energy Cheaper Than Coal

eSolar is one of the early-stage companies Google is working with. Google has announced a plan to develop sources of renewable energy that will be cheaper than coal. The new initiative, RE<C, (renewable energy is cheaper than coal) will begin by focusing on solar power technology, and will also encompass geothermal energy production. According to the Google.Org blog, of the …

Boeing Developing Algae-Powered Jet Fuel

Air New Zealand and Boeing are secretly working to create the world’s first green aviation fuel, made of wild algae. The fuel is essentially derived from bacterial pond scum created through the photosynthesis of sunlight and carbon dioxide on nutrient-rich water sources such as sewage ponds.The company providing the biofuel is Aquaflow Bionomic Corporation. If the project pans out the …

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Streetlights That Adjust To Moonlight

Streetlights that adjust their light output according to the phases of the moon — this design idea was the winner of Metropolis Magazine’s Next Generation design awards. These streetlights would have light sensors built into them that are sensitive enough detect the brightness of the moon, and dim themselves accordingly. For example, if there was a full moon with a …

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Efficient Concrete Replacement: Blocks of Trash

Last year’s trash could become next year’s model home, thanks to the invention of a new type of construction material made entirely from waste products. “Bitublocks,” created by engineer John Forth of the University of Leeds in England, are composed of recycled glass, sewage sludge, incinerator ash, the by-products of metal purification and pulverized fuel ash from power stations. “Bitublocks …

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0 to 60 MPH in Under 1.5 Seconds, Electric KillaCycle Sets New World Speed Record

The KillaCycle, the world’s electric motorcycle, and the official world record holder in the ¼ mile drag, broke the world record again using its lithium-ion batteries. The official record for any electric vehicle worldwide in the ¼ mile is set now at an elapsed time of 8.16 seconds. Weighing just over 165 pounds, the A123Systems battery pack delivers over 350 …

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11 MW Solar Tower Complex Opens in Spain

Europe’s first concentrated tower open recently near the sunny southern Spanish city of Seville. The 11 megawatt plant took four years to build — it was created by a Spanish energy company, Solucar. The tower project is called “PS10” and it uses 624 large movable mirrors called heliostats. Each of the mirrors has a surface measuring 1,290 square feet that …

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Delaware May Become Home To The Largest Wind Park In The U.S.

Delaware may become home to the largest wind power plant in the United States. A wind energy developer, Bluewater Wind, hopes to build a 600-megawatt wind park in the waters just off Delaware’s coast. The wind park would power 130,000 homes for over 20 years, at price cheaper than coal or gas, according to Bluewater Wind’s founder Peter Mandelstam. His …

World’s First Sun and Wind-Powered Ferry

A San Francisco-based company, Hornblower Yachts, is working with Solar Sailor of Sydney, Australia, to construct two 600-passenger trimarans for Alcatraz (at a cost of between $6 million and $8 million apiece) that will run on as much on sun and wind power as they do diesel fuel—and will emit half the pollutants of a similar sized conventional ferry. Service …

Waterless Washing Machine

A waterless washing machine that removes stains from garments in a few minutes has been developed at the National University of Singapore, the facility said on Wednesday. The appliance uses negative ions, compressed air and deodorants to clean clothes. Industrial design students Wendy Chua, 21, and Gabriel Tan, 23, said they were inspired by the technology in air purifiers, which …

Hybrid Taxis Arrive in NYC

A Reuters story today said the first six Ford Escape hybrids have entered the NYC cab fleet. City officials there are apparently saying that the city’s entire fleet of 13,000 taxis could be coverted to hybrids within five years. The Escape hybrid apparently gets double the mileage of the Ford Crown Victoria model predominately used in cab fleets. Reuters via …

Printer Ink From Car Tires

Printer ink can cost as much as vintage champagne, so finding an inexpensive and eco-effective way to make would be great. Now three inventors from Derbyshire, UK, think they have just the solution: extract the carbon from unwanted tires to generate a cheap and plentiful supply.

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Using Eggshells To Build Walls In Japan

In Japan, there’s a product called “Shell Walls” which allows walls to be plastered with a paste made out of waste eggshells. Making full use of the eggshell’s porous structure, Green Techno 21 created Shell Walls which withstand humidity. The eggshell plaster is hazard-free and fireproof as it is made from natural calcium carbonate. After having their inner film peeled …

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PaxFan: An Innovative Spiral Form

A fine example of biomimicry, the PaxFan is an innovative, spiral fan created by Jay Harman, an Australian inventor. His domestic exhaust fan is half as noisy and three-quarters more efficient than the average fan. Sierra Magazine reports: Harman spent a lot of his life watching water flow, both as a diver and as a sailor, one of those principles …

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Red LEDs to Grow Lettuce

Apparently red LEDs are 60% more efficient than fluorescent light when growing vegetables hydroponically. According to IEEE Spectrum Online: Of all the colors of the rainbow, red is lettuce’s favorite. Chlorophyll, the electrochemical engine of photosynthesis, runs on red photons. So if you are growing the vegetable indoors in a factory, why waste energy on colors you don’t need?

MetaEfficient In the News: LA Times Review

We’re in the news again, with a recent review from the Los Angeles Times: The Reactual Institute, which tries to highlight ecologically sound products, sets a lofty goal on the home page of Meta-Efficient, billing it as a “guide to the most efficient things in the world.” That means products are reviewed based on how well they meet consumer needs …