Khosla raises over $1B for fourth fund

It’s official. Khosla Ventures, the firm of influential venture capitalist Vinod Khosla, has raised its $1.05 billion fourth fund and will still continue to invest as much money as it previously has done on cleantech startups.

A shocker: Next-gen biofuels not likely to meet U.S. mandates

Biofuels were envisioned to help to make the world a better place, but here comes a National Research Council report on Tuesday that casts doubt on the environmental and economic benefits of biofuels and the U.S.’s ability to meet its own production mandates.

Vinod Khosla: Greentech has generated huge profits

The realization that many greentech startups need more capital and time than expected to commercialize their technologies has sacked some venture capitalists’ enthusiasm for cleantech. Vinod Khosla has a message for them: chin up! There’s good money to be made and I’m doing just fine.

How next-gen biofuels are faring on the stock market

Next-gen biofuel and biochemical companies Genomatica and Mascoma have filed notices recently indicating that they plan to go public some time soon. But how are the other next-gen biofuel companies that have gone public in recent months now faring on the stock market? Mostly down.

Genomatica files for IPO for making green chemicals

Green chemical developer Genomatica has filed for an initial public offering to seek up to $100 million, according to its government filing on Wednesday. The company engineers processes to create chemical from renewable sources for making a variety of products, from clothing to auto parts.

Obama’s $510M bet to boost biofuels for the military

To promote biofuel production, the U.S. government is becoming both the investor and customer. The White House announced Tuesday a $510 million investment to speed up biofuel production for the military and beyond.

Biofuel maker KiOR faces questions over funding

Freshly minted as a public company, biofuel producer KiOR reported Thursday that it brought in no revenues and widened its losses for the second quarter. It also faced questions about raising money for a processing plant when the economy is still struggling.

Did the greentech IPO window just slam shut?

In the first half of 2011, a variety of cleantech firms both filed for IPOs and made their debuts on the public markets. But in the wake of the market sell-off this week, that IPO window could be swiftly shutting.

Greentech stocks rebound, but only partially

After the great market sell-off yesterday, stocks are rebounding slightly on Tuesday, including many of the greentech stocks that took a beating yesterday. But most of them are only up slightly. Here’s the latest: