Clean-tech IPOs have yet to prove themselves.
Sure, investor excitement is on the rise with Tesla Motors, Solyndra, Amyris and Ameresco preparing to sell shares to the public. Another potential blockbuster, Silver Spring Networks, is said to have chosen its investment bankers.

It appears the market for clean-tech IPOs is thawing, says Erik Straser, a venture capitalist at Mohr Davidow Ventures
But the track record of recent green IPOs is anything but encouraging. Lithium battery maker A123 Systems went public in September and its shares trade below their introductory price.
Sensata Technologies Holding, a sensor maker from the Netherlands, is hanging onto a gain over its initial price in March, but only a modest one. Biofuel maker Codexis, which debuted its shares last week, is suffering the same fate. And the fortunes of Jinko Solar Holding of China are worse. It canceled its coming out altogether.
“The clean-tech IPOs at this stage are still proving themselves,” says Erik Straser, a partner at the venture firm Mohr Davidow Ventures and leader of its cleantech investment team. Nevertheless, “it appears the markets today are thawing.”
Straser says it is likely there will be more clean-tech IPO filings this year and even a period when less mature companies will go public. That’s because the criteria for what a company needs to interest investors is unsettled.
Several years ago, a high-tech company might need $100 million in annual revenue and profits to attract investors. Clean-tech companies appear to have more latitude. Revenue can be in the neighborhood of $50 million, Straser said in an interview, and business models vary.
Some companies have high production costs and are working them down. Others have businesses that are more future than present. Silicon Valley electric car manufacturer Tesla is an example.
The company sells its Roadster sports car today, but IPO investors will bet on the success of the less expensive Model S sedan, he says. What the Roadster did is show there is a high-end market for high-end electric cars, says Straser, who has invested in green-tech firms such as ZeaChem, Nanosolar and OPX Biotechnologies.
Still, it is hard to predict how clean-tech IPOs will do this year. What is clear is that at some point, investors will become more discriminating and look for more mature companies rather than trendy ones, says Straser. When will this occur? No one knows.
Posted by Mark Boslet 




