1045 Hickory Street Pewaukee, WI 53072 (262) 691-8241 www.cooperpower.com News Release Contact: Stephen Weinstein (262) 691-8241 Stephen.Weinstein@CooperIndustries.com Cooper Power Systems Announces Integrated Volt/VAR Control Field Trial Agreements New software module provides added functionality to advanced energy services platform. WAUKESHA, WI, February 22, 2010 - Cooper Power Systems, a division of Cooper Industries plc (NYSE: CBE), today announces it has agreements with three leading utilities to begin field trials of an Integrated Volt/VAR Control (IVVC) application. This is the latest module to be incorporated into the company’s Yukon Advanced Energy Services software platform. Integrated Volt/VAR control is an enhancement to the company’s existing Centralized VAR Management Application. Cooper Power Systems has a tradition of providing quality management solutions to utilities across the United States. In 2000, the company launched a Centralized VAR Management solution at a large Midwest utility and in 2004, it deployed the Multi-Volt algorithm which regulates voltage and optimizes power factor on substation feeders lacking regulators or load-tap changers (LTC). The company’s Yukon VAR Management application along with its CBC 7000 Capacitor Controller is currently in operation in more than 15,000 field deployed capacitors at more than 20 utilities. Cooper Power Systems’ Yukon software uses real-time field values to monitor, analyze and determine the best action to maintain a flat voltage profile and optimized power factor. The algorithm uses inputs such as substation LTCs, regulators and substation and distribution capacitors, as well as customer meters from an AMI network. “Integrated Volt/VAR Control delivers quality power to the customer in the most efficient manor while reducing the utility’s cost to deliver electricity,” said Tom Pitstick, Vice-President and General Manager of the Energy Automation Solutions division at Cooper Power Systems. An additional benefit is the ability to initiate a Conservation Load Reduction event during daily or system peaks to reduce system demand. This allows utilities to reduce their load when the grid is the most constrained and kWh prices are at a premium price. -More- Cooper Power Systems IVVC – Page 2 In addition to straight forward integration to SCADA, EMS, OMS or DMS systems, the Yukon IVVC module has a robust Web browser user interface for operators, engineers or IT team members; offering secure remote access to operation personnel addressing field maintenance or troubleshooting. The company’s engineers have leveraged the technology of their CymeDIST analysis software to develop and validate the Yukon IVVC algorithm. Supported by CymeDIST, Cooper Power Systems is developing an IVVC application which is flexible enough to accommodate the voltage and VAR objectives for each customer based upon configured algorithm parameters. This design supports the company's goals to deliver a standard off-the-shelf IVVC application that is easy to deploy and significantly reduces cost of ownership. “The development of the IVVC application displays significant progress in our efforts to expand the automation solutions we offer electric utilities,” said Cooper Power Systems group president, Mike Stoessl. “This new enhancement leverages our distribution expertise across our Regulators, Capacitors and our EAS business units. IVVC is the direct result of interacting with and hearing from our customers in order to give them the solutions they require to deploy their Smart Grid.” Cooper Power Systems: Commitment to Smart Grid Cooper Power Systems has long been a provider of comprehensive reliability and productivity solutions for utility, commercial and industrial customers. The Energy Automation Solutions (EAS) group within Cooper Power Systems is a leading provider of innovative smart grid technologies and solutions that enable customers to optimize their electrical grid performance. These solutions include Advanced Metering Infrastructure (AMI), Demand Response (DR), Smart Sensors, Power Systems Engineering Software and Services, Substation Automation and Feeder Automation. About Cooper Power Systems Cooper Power Systems, Inc., with 2009 revenues of approximately $1.1 billion, is a division of Cooper Industries plc (NYSE: CBE). Cooper Power Systems is a global manufacturer of world-class power delivery and reliability solutions for the electrical and industrial markets. Through its Energy Automation Solutions group, it is also a leading provider of software, communications and integration solutions that enable customers to increase productivity, improve system reliability, and reduce costs. For more information, please visit www.cooperpower.com or cooperpowereas.com. About Cooper Industries Cooper Industries plc (NYSE: CBE) is a global manufacturer with 2009 revenues of $5.1 billion, approximately eighty-nine percent of which are from electrical products. Founded in 1833, Cooper's sustained level of success is attributable to a constant focus on innovation, evolving business practices while maintaining the highest ethical standards, and meeting customer needs. The Company has eight operating divisions with leading market share positions and world-class products and brands including: Bussmann electrical and electronic fuses; Crouse-Hinds and CEAG explosionproof electrical equipment; Halo and Metalux lighting fixtures; and Kyle and McGraw-Edison power systems products. -MORE- Cooper Power Systems IVVC – Page 3 With this broad range of products, Cooper is uniquely positioned for several long-term growth trends including the global infrastructure build-out, the need to improve the reliability and productivity of the electric grid, the demand for higher energy-efficient products and the need for improved electrical safety. In 2009, sixty-one percent of total sales were to customers in the industrial and utility endmarkets and thirty-nine percent of total sales were to customers outside the United States. Cooper has manufacturing facilities in 23 countries as of 2009. For more information, visit the website at www.cooperindustries.com. ###