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Horizon’s new fuel cells power stealthy aircraft

June 3, 2009 - by Lisa Sibley - Singapore company says its Aeropak system offers up to four times the endurance capability of today’s advanced lithium batteries. Full Story »

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Readers say...

Microsoft Hohm statement...clarification

Lisa thank you for your coverage of the Dow Jones event. ...
Watt versus watt-hour

I find a bit of irony in the statement, "The average ...
Top Ten Cleantech Countries- add France!

Shawn, I'd add France! A majority of France's electrity is ...
Microsoft Hohm statement

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