Power-One Joins the Climate Savers Computing Initiative; Supports 50% Computer/Server Power Use Reduction by 2010


CAMARILLO, Calif.--Nov. 26, 2007--Power-One, Inc. (Nasdaq:PWER) today announced that it has joined the Climate Savers Computing Initiative (CSCI) as an Associate Member. The goal of the CSCI is to bring together industry, consumers, and conservation organizations to significantly increase the energy efficiency of computers and servers. CSCI Board of Director members include: Dell, Electronic Data Systems, Google, Hewlett Packard, Intel, Lenovo, Microsoft, Pacific Gas & Electric, and the World Wildlife Fund.

Bill Yeates, Power-One's CEO, commented, "As a CSCI Associate Member, Power-One has committed to continue to produce power systems that meet or exceed the efficiency standards published each year by the initiative. Not only is this commitment important to our environment, it is also vital to the Company's financial performance since approximately 15% of Power-One's 2007 revenues will ship to data server and storage applications."

Mr. Yeates continued, "Power-One solutions listed on the CSCI web site include: Z-One® Digital Power, AC-DC front ends, DC-DC bricks, and analog POLs; with many models already exceeding the CSCI efficiency goals for 2010. In addition to reducing energy consumption in servers, these products are part of Power-One's overall commitment to provide a comprehensive range of energy-saving solutions to many industries, including renewable-energy solar and wind inverters, in support of improving our global environment."

About the Climate Savers Computing Initiative

The initiative's energy efficiency benchmarks will initially follow the EPA's Energy Star guidelines; but with increasing requirements during the next several years. For example, 2007 Energy Star specifications require that PC power supplies meet at least 80 percent minimum efficiency. The initiative would require a minimum of 90 percent by 2010. In addition, the initiative sets a higher efficiency target in the power supply for volume servers (1U and 2U single-socket and dual-socket systems); an increase from 85 percent to 92 percent efficiency by 2010. For a complete description of these requirements, please visit www.climatesaverscomputing.org .

About Power-One

Power-One products power high-availability infrastructure applications such as: alternative energy, routers, data storage and servers, wireless communications, optical networking, medical diagnostics, railway controls, and semiconductor test equipment. Power-One, with headquarters in Camarillo, CA, has global sales offices and manufacturing and R&D operations in China, the Dominican Republic, Hungary, Ireland, Italy, Slovakia, Switzerland, and the United States. Please visit www.power-one.com for more information.

Power-One products are not designed, intended for use in, or authorized for use as critical components in life support systems, equipment used in hazardous environments, or nuclear control systems without the express written consent of the respective divisional president of Power-One, Inc. The appearance of products, including safety agency certifications pictured on labels, may change depending on the date manufactured. Specifications are subject to change without notice.

CONTACT: Power-One, Inc.
Dave Hage, 805-987-8741
dave.hage@power-one.com
or
AvalonInvestor Relations
Kristyn Hutzell, 512-514-6046
kristyn@avalon-comm.com

SOURCE: Power-One, Inc.

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