Wednesday, November 28, 2007

Google Energy


Google Invests in Green with Renewable Energy Initiative | Epicenter from Wired.com  Annotated



The new iative, dubbed Renewable Energy Cheaper than Coal, will primarily target energy sources like advanced solar thermal power, wind power technologies and enhanced geothermal, according to Google co-founder Larry Page, and the company plans to shell out tens of millions of dollars in 2008 on R&D and related investments.



Google also said it anticipates investing hundreds of millions of dollars in other renewable energy projects which the company also hopes will generate positive returns.



Being Google, it's not just about helping the environment. The company said it also expects the new iative will be pretty good for its bottom line as well.


Google´s Goal - Renewable Energy Cheaper Than Coal  Annotated



Depending on how fast Google spends its money, its investment could rival the federal government's investment in renewable energy. A Government Accountability Office report found that Department of Energy spending on research and development of biomass, wind and solar energy sources totaled just $65 million in 2006. (Since this was posted this morning, the folks over at reddit have identified other Department of Energy budget documents that make the GAO estimate seem far too low, with $1.16 billion being appropriated for energy efficiency and renewable energy in 2006, and $1.24 billion requested for 2008.)

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Monday, November 26, 2007

Magnetic Wind Energy


Inhabitat » THE MAGLEV: The Super-powered Magnetic Wind Turbine  Annotated



The MagLev wind turbine, which was first unveiled at the Wind Power Asia exhibition in Beijing, is expected take wind power technology to the next level with magnetic levitation.



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Magnetic levitation is an extremely efficient system for wind energy. Here’s how it works: the vertically oriented blades of the wind turbine are suspended in the air above the base of the machine, replacing the need for ball bearings. The turbine uses “full-permanent” magnets, not electromagnets — therefore, it does not require electricty to run. The full-permanent magnet system employs neodymium (”rare earth”) magnets and there is no energy loss through friction. This also helps reduce maintenance costs and increases the lifespan of the generator.



they’re able to use winds with starting speeds as low as 1.5 meters per second (m/s). Also, they could operate in winds exceeding 40 m/s.



one large maglev wind turbine could generate one gigawatt of clean power, enough to supply energy to 750,000 homes



the maglev wind turbines will be operational for about 500 years!



Construction began on the world’s largest production site for maglev wind turbines in central China on November 5, 2007. Zhongke Hengyuan Energy Technology has invested 400 million yuan in building this facility, which will produce maglev wind turbines with capacities ranging from 400 to 5,000 watts.



In the US, Arizona-based MagLev Wind Turbine Technologies will be manufacturing these turbines.



The estimated cost of building this colossal structure is $53 million.

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