Vinod Khosla believes private funds can develop alternative energy?

Vinod Khosla, a very wealthy venture capitalist whom is making huge investments in the ethanol industry, believes that private funds can mostly drive the transition from oil to clean energy. Of course Khosla believes that ethanol is the best path to alternative energy. Still, while Khosla claims private funds can fund much of the switch to alternative fuels, it seems - inevitably - the government would have to become significantly involved nonetheless. So, private funds apparently cannot fund the switch to alternative energy? Is that double speak?

(Source: Reuters)