Title: Boston-Power Makes Wall Streat Journal Top 10 Cleantech List

Industry sector: Energy storage

And the Top Clean-Tech Companies Are...

By COLLEEN DEBAISE

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 solar-power firms 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. (See the full list here.)

#5 Boston-Power Inc.
Headquarters: Westborough, Mass.
Description: Provider of a portable lithium-ion battery technology platform.
Founder: Christina Lampe -Onnerud
Investors: Foundation Asset Management, Gabriel Venture Partners, GGV Capital, Oak Investment Partners, Venrock Associates