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What makes IBM's 'green' data center tick
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What drives solar stocks?
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Tech execs talk smart design for ‘green’ buildings
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E-motorcycle hits S.F. streets
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'60 Minutes': Powered by coal
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The Green Enterprise: HP
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Revving up the electric-car industry
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Getting green consumers to take action
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From Internet to enternet, creating the energy network
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The lightbulb of the future?
Silicon Valley's Luxim has developed a lightbulb the size of a Tic Tac that gives off as much light as a streetlight. News.com's Michael Kanellos talks to the company about its technology and its plans to expand into various markets.
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Fill your car for $1.10 a gallon?
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Tesla Test Drive: Time to Try an American Car?
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The future, reusable paper
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How does a solar cell work?
How does solar conversion work now and how do we want it to work in the future? Paul Altivisatos, interim director for Lawrence Berkeley National Laboratory at UC Berkeley, explains how a solar cell works and how the solar energy of the future, via a solar fuel generator that converts energy the same way plants do, can become more efficient. He says that rather than looking for what's next, he looks to the end result--an ideal usage for materials.
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The new eco-friendly Samsung Reclaim
Natali Del Conte shows us the new eco-friendly Samsung Reclaim from the product launch in New York.
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E-motorcycle hits S.F. streets
CNET News reporter Mats Lewan takes the brand new Zero S electric motorcycle for a test drive in downtown San Francisco. Currently, electric scooter-style and offroad bikes can be used on the streets. But the Zero S can reach up to 60 mph, and its creator, Zero Motorcycles, says it's the first electric high-performance street motorcycle that's ready to ship.
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The Green Enterprise: Cisco
Networking giant Cisco Systems has a goal to reduce greenhouse gas emissions from its operations by 25 percent in the next four years--with the help of technologies it's created. Cisco also wants to help customers do the same. Correspondent Sumi Das looks at green innovations at Cisco, including: an HD video-conferencing system, energy-efficient data centers, and a new office environment that encourages employees to work from unassigned spaces.
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What makes IBM's 'green' data center tick
CNET News' Martin LaMonica gets a tour of IBM's lab for green IT where the data center uses networked sensors and liquid cooling to lower energy use.
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The Green Enterprise: HP
Hewlett-Packard plans to cut its global energy use 20 percent by 2010. Correspondent Sumi Das looks at "green" strategies the company is implementing to accomplish its goal, such as designing new energy-efficient datacenters and helping make cities more eco-friendly through IT. She also talks to Bonnie Nixon, HP's director of sustainability, about the company's recycling efforts and its plan to eliminate unsafe materials inside its PCs.
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The lightbulb of the future?
Silicon Valley's Luxim has developed a lightbulb the size of a Tic Tac that gives off as much light as a streetlight. News.com's Michael Kanellos talks to the company about its technology and its plans to expand into various markets.
Man 1: The gas in the middle of this is an argon gas.
Michael Kanellos: It might look like a refugee from a string of Christmas lights, but this tiny bulb from Luxim can put out as much light as a street light. Check it out.
Man 2: We've got a 400 watt bulb in this unit and our system will run about 250 watts.
Michael Kanellos: Here's how it works: Electrical energy delivered to a component called a puck.
Man 3: The puck acts like an electrical lens.
Michael Kanellos: The gases heat up, turn into a plasma, and give off light. A substantial portion of the energy gets turned into light rather than heat.
Tony McGettigan: How many of these will I need? When you answer, "Only one", they are like you have to be kidding me.
Michael Kanellos: Yeah, one per street light. Luxim gets about 140 lumens per watt. High end LEDs get around 170 lumens per watt. An ordinary light bulb gets about 15.
Tony McGettigan:
Key advantages are that the energy is driven into the bulb without any
electrodes. So you don't use any electrical connections to get the energy to
the bulb.
In the middle of the chamber the plasma will be 6000 Kelvin temperature. It
will be the same temperature as the surface of the sun, which is why the
spectrum looks very similar to the spectrum of the sun arriving on Earth.
Michael Kanellos: Lighting is hot these days, mostly because engineers and companies have ignored energy efficiency until recently. A lot of LED companies have received funds. Luxim for instance has received around $40 million of VC funds. We don't know who will win, but it seems clear that the bulbs and streetlights you grew up with are going to change soon.






























