Power-One To Present At Upcoming Investor Conferences

CAMARILLO, Calif., Feb. 16, 2011 (GLOBE NEWSWIRE) -- Power-One, Inc. (Nasdaq:PWER), a leading provider of renewable energy and energy-efficient power conversion solutions, will be presenting at three investor conferences in the first quarter of 2011. Kevin Trosian, Vice President at Power-One, will present at the Jefferies 11th Global Clean Technology Conference on February 24, 2011 at 2:30 PM Eastern Time and at the Northland Capital Markets Growth Conference on March 3, 2011. Both events will be held in New York. Mr. Trosian will also be presenting at the Commerzbank Growth & Responsibility Conference in Frankfurt, Germany on March 17, 2011 at 9:00 AM Central European Time.

A live webcast and replay of the Jefferies presentation will be available over the Internet through Power One's Investor Relations web site at http://investor.power-one.com . Please go to the web site at least 15 minutes early to register, download and install any necessary software.

About Power-One

Power-One is the world's second largest designer and manufacturer of photovoltaic inverters. Its renewable energy products enable higher yields when converting power from solar arrays and wind farms for use by utilities and homes. Power-One has a 40 year history as a leader in high efficiency and high density power supply products for a variety of industries including renewable energy, data storage and networking, industrial and network power systems. The company is headquartered in Camarillo, CA and has global sales offices, manufacturing, and R&D operations in Asia, Europe, and the Americas. Power-One is traded on NASDAQ under the ticker symbol PWER. For more information, please visit www.Power-One.com .

The Power-One, Inc. logo is available at http://www.globenewswire.com/newsroom/prs/?pkgid=7338

CONTACT: Kevin Trosian
         Vice President, Finance & Investor Relations
         [phone]

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