Source: The Wall Street Journal.

For start-ups that harness the energy of the sun, 2010 looks to be a promising year.

In The Wall Street Journal's first survey of venture-backed clean technology companies, three makers of solar cells came out on top: Solyndra Inc. of Fremont, Calif.; Suniva Inc. of Norcross, Ga.; and eSolar Inc. of Pasadena, Calif. The rankings, announced Thursday at the Journal's ECO:Nomics Executive Conference in Santa Barbara, Calif., seek to identify those green companies that have the capital, executive experience and investor know-how to succeed in an increasingly crowded field. Read more here.