Department of Energy Secretary Steven Chu had arguably the biggest influence on the greentech sector in 2010. The DOE has funneled billions from the stimulus package into greentech sectors across the smart grid, green cars, energy efficiency, carbon capture and sequestration, and clean power. As a scientist he "gets" the issues, and also is on the cutting edge calling for open research and collaboration. ... Another easy choice is Tesla CEO Elon Musk who helped the Silicon Valley electric car startup climb a mountain in 2010.