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New Record: World’s Largest Wind Turbine (7+ Megawatts)

by Justin Thomas •

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The world’s largest wind turbine is now the Enercon E-126. This turbine has a rotor diameter of 126 meters (413 feet). The E-126 is a more sophisticated version of the E-112, formerly the world’s largest wind turbine and rated at 6 megawatts. This new turbine is officially rated at 6 megawatts too, but will most likely produce 7+ megawatts (or …

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LiFePO4 Batteries: A Breakthrough For Electric Vehicles

by Justin Thomas •

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Note: If you looking for AA-sized LifePO4, you can find them here. Soon, we’ll probably be seeing Lithium Iron Phosphate (LiFePO4) batteries being used in most electric cars and bikes. This new battery type is set to dominate the market. Based upon lithium ion technology, LiFePO4 batteries offer many advantages over lithium cobalt dioxide (LiCoO2) batteries which are commonly used …

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Electric Tankless Water Heaters

by Justin Thomas •

Note: This post has been expanded and updated for 2009! Tankless water heaters only heat water when it is needed. About 8% to 30% of the energy consumed by a standard water heater goes to keeping the water hot while it’s not being used. New tankless systems heat the water instantly when you turn on the faucet, rather than keeping …

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Fuel Cells Being Used To Power Japanese Homes

by Justin Thomas •

Masanori Naruse jogs every day, collects miniature cars and feeds birds in his backyard, but he’s proudest of the way his home and 2200 others in Japan get electricity and heat water – with power generated by a hydrogen fuel cell. The technology – which draws energy from the chemical reaction when hydrogen combines with oxygen to form water. Developers …

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Rooftop Wind Turbines Ready For Commercial Use

by Justin Thomas •

Note: Images and Video © Lucid Dream Productions Wind turbines designed to be installed on rooftops are generating a lot interest lately. These compact turbines can be located on top of buildings, or attached to other parts of large structures like bridges. In turns out, though, that installing wind turbine in a city environment is a bit of an art. …

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GM And Segway Unveil Their Electric 2-Seater

by Justin Thomas •

Yesterday, GM and Segway unveiled an electric-powered urban vehicle called the Puma. The Puma seats two people, and is said to reach a top speed of 35 miles per hour. The vehicle can go 35 miles before needing a recharge. Larry Burns, vice president of research and development for GM, said it would cost about 35 cents to charge the …

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World’s First Solar-Powered Phone: Now Available

by Justin Thomas •

We’ve seen prototypes for solar-powered cell phones, but now a Chinese company claims to have developed the world’s first commercially available solar-powered cellphone. The company says a scale-like solar panel on the top side of the phone can also be recharged by light from artificial sources. It can provide 40 minutes of talk-time after sitting in the sun for an …

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Tankless Water Heater Uses Microwaves: Vulcanus Mark 4

by Justin Thomas •

A Canadian company, Pulsar Advanced Technologies, claims to have produced a water heater that uses microwave technology to heat water instantaneously. The company says: “The Vulcanus MK4 can heat water from 35 degrees Fahrenheit to 140 degrees Fahrenheit in seconds and can source multiple applications at once: showers, dishwasher, sink usages and more. The Vulcanus MK4 is the size of …

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Chicago Center For Green Technology: Sustainable Development Leader

by Benjamin Roman •

Great ideas for sustainable development sometimes just remain abstract concepts – that is, until they’re put into practice where they can serve as a showcase for their real potential.  Such was the case with Chicago’s Center for Green Technology, the country’s first LEED Platinum municipal building – and an inspiration for subsequent development both in Chicago and nationwide.

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The Best LED TVs of 2011

by Tracy McGill •

LED TVs are a type of LCD TV that use LED lights to illuminate the screen. In full-array LED TVs the light emitting diodes are embedded across the entire back of the panel, while other models are edge-lit, where the LEDs are arranged around the sides of the panel and illumination is directed toward the center. Most LED TVs feature …