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Press release from GlobeNewswire (a Nasdaq OMX company)

Power-One Introduces New 400kW Modular Inverter System for Commercial Solar Market

Tuesday, September 11, 2012

Power-One Introduces New 400kW Modular Inverter System for Commercial Solar Market03:00 EDT Tuesday, September 11, 2012ORLANDO, Fla., Sept. 11, 2012 (GLOBE NEWSWIRE) -- SOLAR POWER INTERNATIONAL 2012 – Power-One, Inc. (Nasdaq:PWER), a leading provider of renewable energy and energy-efficient power conversion and power management solutions, today announced its new modular inverter system, the AURORA PVI-400.0-TL. This extremely scalable system is an evolution of Power-One's previous central inverters, which are based on 55kW modules. By increasing the power of each inverter to up to 67kW, the AURORA PVI-400.0-TL reaches an output of up to 400kW. The output voltage has been increased to 380V, thereby further limiting losses. Like the previous versions, each inverter module can be configured in multi-master for up to six independent MPPT or in master slave with a single MPPT. This helps to reduce losses due to array mismatch, thus improving energy harvesting, and supports short MTTR with field swappable modules. "Designed with the specific needs of commercial plant operators and installers in mind, the new AURORA PVI-400.0-TL offers more power than our previous central inverter systems on the same footprint," said Paolo Casini, vice president of product marketing at Power-One. "Additionally, up to five PVI-400 inverters can be paralleled on a single transformer secondary winding to achieve a skid size block of 2MW." Moreover, the inverter system reaches 98 percent of peak energy and offers a maximum input voltage of up to 1,000V, which reduces the DC distribution losses for large-scale PV plants. Each inverter is equipped with a number of system protections, such as DC input, reverse polarity protection, overvoltage protection devices and AC breakers. Due to the modular design, installation and maintenance are effortless. All the DC/AC converters can be accessed from the front, allowing for easy accessibility to all other critical parts and thereby further simplifying maintenance procedures. To significantly reduce the on-site wiring and testing operations, Power-One delivers the AURORA PVI-400.0-TL units pre-configured and pre-tested. The inverter system offers two independent RS-485 communication interfaces for inverter and intelligent string combiner monitoring. The AURORA PVI-400.0-TL fulfills all the necessary requirements for safety and grid management which makes it compatible for large scale commercial and utility markets. To learn more about Power-One's inverter products for the United States as well as its global portfolio, please visit http://www.power-one.com/renewable-energy.  About Power-One Power-One is a leading provider of renewable energy and energy-efficient power conversion and power management solutions and 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 solar arrays for use by utilities, commercial enterprises 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 & 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=7338CONTACT: For Press Enquiries please contact Bridget Kemps Tel.: (650) 281-3310, Email: bridget.kemps@edelman.com