Power-One Launches Three-Phase String Inverter for the North American Market

Power-One, Inc. (Nasdaq:PWER), a leading provider of renewable energy and energy-efficient power conversion and power management solutions, announced it has received CSA-UL1741 approval for its AURORA(R) three-phase string inverter for the United States and Canadian market places.

CAMARILLO, Calif., March 11, 2011 (GLOBE NEWSWIRE) -- Power-One, Inc.

(Nasdaq:PWER), a leading provider of renewable energy and energy-efficient
power conversion and power management solutions, announced it has received
CSA-UL1741 approval for its AURORA(R) three-phase string inverter for the
United States and Canadian market places.

Power-One's AURORA(R) Trio, 10 & 12kW string inverters have a number of
differentiating features, including two functionally independent MPPT
inputs, a wide input voltage range, convection cooling, disconnect switches
and a NEMA-4X enclosure.

"This product provides the greatest design flexibility, productivity, and
reliability," said Paolo Casini, Power-One's Vice President for Product
Marketing. "Designed for commercial usage, the three-phase inverter is
highly unique in its ability to optimize the performance of the PV plant.
This very same characteristic has made the Power-One three-phase string
inverter the world's most commonly used inverter in its category."

Kent Sheldon, Vice President Sales, North America, said, "This product will
make a huge difference to the North American RE market.
Power-One's three-phase inverter has made a significant impact in Europe
since its launch two years ago. It is the best-in-class product in Europe
and will prove to be the same in North America."

In 2010, the European version of Power-One's AURORA(R) three-phase inverter
received an A+ approval rating from the independent industry reviewer Photon
Laboratory Magazine.

Power-One is currently the world's second largest manufacture of solar power
inverters. With manufacturing centers in three continents, Power-One and its
AURORA(R) brand of solar and wind power inverters, ranging from 2kW to
2.5MW, offer best-in class product performance and reliability along with a
global customer care package.

To learn more about Power-One and its products and services, please visit
www.Power-One.com.

About Power-One

Power-One is the world's second largest designer and manufacturer of
photovoltaic inverters. Its renewable energy products enable the industry's
highest yielding conversion of power from both solar arrays and wind farms
for use by utilities and homes. Power-One has a 40 year history as the
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 about the Company, please visit www.Power-One.com.

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