HAYWARD — OptiSolar Inc., a fast-growing solar energy firm, will undertake a big expansion of its operations and work force in the East Bay and Sacramento. The company has rented a 60,000-square-foot ...

An Arizona solar company said Monday that it had acquired a pipeline of planned large solar projects from OptiSolar, a Hayward solar panel manufacturer that had planned to build utility-scale projects ...

OptiSolar Inc., which only last fall had the trappings of a solar energy powerhouse, disclosed on Friday that it has laid off nearly 300 workers in Hayward and Sacramento because the frozen capital ...

Hayward's OptiSolar is laying off all but a few employees while it continues to look for a buyer for its solar panel manufacturing business. The layoffs include 200 employees, most at the company's ...

Frozen capital markets are putting the chill on a fast-growing California solar company, a sign that the economic downturn is being felt even in the state’s thriving renewable-energy sector.

A secretive Hayward, Calif. company has just announced it will build the largest solar power “farm” in North America, using solar cells manufactured in Silicon Valley. The site, near Sarnia in Ontario ...

San Francisco Chronicle – Hit hard by the financial crisis, Hayward’s OptiSolar agreed on Monday to sell its entire portfolio of planned but unbuilt solar power plants to an Arizona rival for $400 ...

OptiSolar Inc., which grabbed headlines last year with plans to build a massive solar power plant in California's Central Valley, has stopped its manufacturing operations and will lay off most of its ...