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Lee Kwang-Hee

Organic solar cell efficiency breakthrough

July 13, 2007 - by Dallas Kachan - South Korean researchers say they've broken the 5 percent organic PV cell efficiency barrier. Full Story »

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Staff analysis

Energy management: red light, green light

What is it going to take to get consumers and businesses ...
Why the cleantech community should invest in rubbish

The market drivers for investing in recycling and waste ...
Waiting for the cleantech tide to turn in shipping

Despite that it accounts for 3 percent of global ...
The "best" technology does not always win

M.R. Ragaswami, founder of the Corporate Eco Forum, has ...

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

A Microsoft spokesman said the company actually has more ...

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