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It's no surprise that Vinod Khosla is a fan of ethanol, but he's long said that it's just a stepping stone to get us off of oil. Still, the man behind Sun Microsystems and lots of ethanol research will give the keynote address at the Algae Biomass Summit in Seattle next month. But Khosla and his venture capital are not 100 percent behind algae biofuels. He told the Wall Street Journal that, "We keep looking at algae. We've looked at one to two dozen plants, haven't yet found economics that work

Considering that the internal combustion engine has been around for so long, you could be excused if you thought that there were no more big gains to be found when it comes to the efficiency of the design. You would be wrong, though, and EcoMotors' has a unique design ICE that is giving the company room to make some big claims. Using a horizontal design, like the old Volkswagen Beetle or current Subarus, EcoMotors believes that a 2.5 liter engine using their technology could generate as much pow

Range Fuels' cellulosic ethanol plant, the first in America, broke ground Tuesday in Treutlen County, Georgia. Construction of the first 20 million-gallon-per-year phase is expected to be completed in 2008. Pictured, from the left, are U.S. Secretary of Energy Samuel W. Bodman, Khosla Ventures Founder Vinod Khosla, Range Fuels CEO Mitch Mandich and Georgia Governor Sonny Perdue.