Not being a techie or a VC, Mr. Khosla's names was unknown to me until a few weeks ago.
Now I see him in energyBIZ and Fast Company.

Background, founder of Sun Microsystems, big into the VC world and several years ago shifted his investing to green investments to address climate change. He sees climate change as a "technological opportunity" and suggests that "We need planet insurance, because the probability of a disaster is much higher."

He has invested in solar, carbon-negative concrete, bio-fuels and wind power storage - to name a few.

Check out his companies web site, the papers and presentations are particularly interesting: http://www.khoslaventures.com/.

More on LED's

The LED wars between DOE and EPA have heated up. Several major efficiency players including PG&E, Efficiency Vermont and the Next Generation Lighting Industry Alliance have all weighed in, saying that EPA is out of line here. The wheels of government grind slowly, but the market is quickly rejecting EPA's move.