Six Startups Win Cleantech Contest

Energy-management software, electric-car conversion and recyclable diapers are some of the winners of $10,000 prize each.

Recyclable diapers, a stone-looking building material made with 80 percent of recycled glass and a device to cut an air conditioning's energy use by 20 percent are among the winners of the 2008 California Cleantech Open.

The private nonprofit California Cleantech Open announced the winners from six categories during a ceremony in San Francisco Thursday night. The business plan competition chose the winners from among 43 finalists, companies that went through a series of workshops before pitching their ideas to a panel of judges.

The winning companies get $50,000 in cash and $50,000 in services to help them launch their businesses. The competition inaugurated in 2006.

San Jose Mayor Chuck Reed took the stage to pitch his city as a place to incubate tech companies. He said the city will sponsor an award that offers a one-year free rent to the winner.

Steve Vassallo, principal of Foundation Capital and David Rodgers, the deputy assistant secretary of energy efficiency at the U.S. Department of Energy gave pep talks about the value of developing greentech and the need to continue to invest in them even during the economic downturn.

Here is a list of winners:

Green Building

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