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The Almost-Free Lunch

The Almost-Free Lunch A micro version of the standard generator taps into reciprocal vibrations from machinery, engines, or vibrating structures, exploiting a previously unused source of mechanical energy. The emerging field of energy scavenging is gaining momentum as these microgenerators can be attached to any structure expected to experience vibration. Specific power-generating applications can be tailored at the point source to provide light, perform measurements, or operate medical implants. Recent innovations showcased in Distributed Energy improve the practicality of wireless and battery-free sensors. What applications can you envision for this "almost-free" source of renewable energy?

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Your Solar Advantage in Service and Global Acceptance
Underwriters Laboratories

Your Solar Advantage in Service and Global Acceptance At Underwriters Laboratories, we're working on progressive Renewable Energy research and certification initiatives, including the recent grand opening of a new photovoltaic test laboratory, the largest of its kind in North America located in Silicon Valley.

Come see us at the Solar Power show, BOOTH 2033.

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National's Audio Solutions Available from Digi-Key
Digi-Key Corporation

New Pressure Sensor Solution Starting at €97 National's high-performance series brings dramatically improved sound quality to high-fidelity consumer and professional audio equipment. National manufactures Class AB and Class D amplifiers and audio subsystems for speakers, headphones, and ceramic and piezoelectric speakers. National makes it easier to design better, richer-sounding systems with our acclaimed Boomer® and Overture® lines. With the capability to process an order, from order entry to shipping, in as little as 15 mins., Digi-Key processes more than 99% of its orders the same day.

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Solar Power . . .
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Cooled by the Sun

Cooled by the Sun The sun in Spain cools mainly in the 33 - 43 °C range with this solar-cooled air-conditioning system. The absorption chiller mechanism exploits solar and residual heat as the energy source to produce cold water in the 7-18 °C range, sufficient to cool a 40 m2 space.

Secrets of Solar Grid Parity

Secrets of Solar Grid Parity Industry analysts predict First Solar to meet typical solar cell grid-parity prices of about U.S.$1/W in 2-4 years. The start-up, based in Tempe, AZ, expects to boost annual production capacity to 1 GW by 2009 but will not divulge details of its cadmium telluride thin film technology. Currently selling at $2.45/W, the cells are deployed in solar farms and commercial rooftop systems.

Fuel Cells & Hydrogen . . .
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Bike Bypasses Petrol Pump

Bike Bypasses Petrol Pump Don't be fooled by the gas tank cover — a proton exchange membrane fuel cell and electric motor drive this concept motorcycle. A lithium-ion battery and motor controller reside beneath the hydrogen storage tank. Quiet operation and water vapor emissions should make for easy riding.

This Catalyst Price is Right

This Catalyst Price is Right Eliminate the need for pricey platinum catalyst and electrolysis becomes instantly economical. By adding relatively inexpensive cobalt and potassium phosphate to water and passing a current through it, researchers from MIT and Monash University, Australia, may have hit the hydrogen jackpot. Scientific American reports that Pt use in fuel cells can also be avoided with cheaper conducting polymer materials.

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Extruded Aluminum Frames Ideal for Photovoltaic Applications
Northern States Metals Corp.

Extruded Aluminum Frames Ideal For For Photovoltaic Applications Northern States Metals has developed a core competency in the design, engineering, manufacturing, and assembly of aluminum frames and clips for Photovoltaic module manufacturers.

For nearly 30 years their aluminum extrusion expertise has served endless applications. Few applications are too big or small. Call (410) 715-4779.

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Wind, Water & Geothermal . . .
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Wind Takes Wing

Wind Takes Wing The WindWing is touted as a superior alternative to propeller wind turbines, with six wing panels that tilt to efficiently tap more power. Sensors detect wind direction and adjust panels to maximize collection area. Prototypes with fewer moving parts than conventional wind turbines also produce comparable power output at less cost.

Northern Ireland Takes First Tidal Title

Northern Ireland Takes First Tidal Title Tidal power is finally linked to the grid in Northern Ireland, and the 1.2 MW SeaGen system briefly generated 150 kW during tests. Although one of the two 16 m diameter rotors was damaged due to a control system failure, the $20 million project should be fully operational by November 2008 as the world's first commercial tidal-power system.

Biomass & Batteries . . .
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Should Have Dung this Already

Should Have Dung this Already What if all livestock manure produced in the U.S. was converted to biogas instead of lagooned or otherwise disposed? About one quad of renewable energy/yr would be generated, and converting this biogas into electricity could satisfy 2.4% of national power demand. Annual greenhouse gas emissions from power generation would drop 3.9%.

Air Cell Stores More

Air Cell Stores More With a practical capacity of about 5 kWh/l, a recently developed renewable electrochemical energy storage system has twice the practical energy capacity of gasoline and an order-of-magnitude higher capacity relative to lithium-ion batteries. A solar photochemical route for anode regeneration in the vanadium boride air cell is proposed, according to this Green Car Congress article.

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10 Watt Solar Power System
 
Remote Control Technology, Inc.

10-Watt Solar Power System The Remote Control Technology 10 W Solar Power System is a complete, fully-integrated power supply designed for site loads requiring 12 VDC. Each system provides safe and reliable power generation without the need and expense of installing utility power. The sealed, maintenance-free battery is designed for deep-cycle operation and extended life in solar applications.

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Careers & Commentary . . .
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Gain the Latest Project Management Credentials Online!
Villanova University Online

Gain the Latest Project Management Credentials Online! Gain the Latest Project Management Credentials Online!

Be among the first to receive PMBOK® Guide — Fourth Edition-based training. Learn 100% online from acclaimed Villanova University. Save up to $1,540 now!

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January 26, 2010 - Volume 4 Issue 1
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