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Venture capitalist calls report, which featured him and one of his portfolio companies, an "agenda-driven bastardization of news reporting."
While the ethanol industry faces more skepticism, biofuel companies making drop-in replacements for petrofuels are moving out of demonstration stage to larger-scale production.
Biofuel company Kior gets $75 million loan from Mississippi to scale up its catalyst-based process for turning biomass into gasoline or diesel fuel.
Primus Green Energy has developed a process to convert wood pellets and natural gas into a high-octane gasoline. But can they do it cheap enough?
With political paralysis and the turmoil of Solyndra in Washington, states are taking the lead on green technology action, pitting individual states against other countries.
Green-tech startups are splitting between those which swing for the fences and others who just try to hit safely but there's a need for both types to foster innovation.
Famed tech investor Vinod Khosla says green tech will succeed when entrepreneurs follow their vision for disruptive technologies rather than expect consumers to pay a premium for green products.
Making industrial chemicals from plants is easier to crack into than the cut-rate world of transportation fuels for young green-tech companies seeking a commercial foothold.
Kior said it has a term sheet for a $1 billion loan guarantee from the DOE to build four plants that will convert wood chips into a gasoline substitute.
To navigate uncertain policies in the U.S., clean-tech start-ups are trying to grow on the cheap and get first products online in China and other countries.