1045 Hickory Street Pewaukee, WI 53072 www.cooperpower.com News Release Contact: Stephen Weinstein (262) 691-8241 stephen.weinstein@cooperindustries.com Cooper Power Systems Announces Collaboration with Virelec and Manitoba Hydro Alliance designed to develop an IEC 61850 compliant substation solution. WAUKESHA, WI, April 12, 2010 - Cooper Power Systems, a division of Cooper Industries plc (NYSE: CBE), today announced today that it is working with Manitoba Hydro and its system integrator, Virelec, to develop fully IEC 61850 compliant substations. The project is intended to modernize, automate and integrate over 100 substations, following the IEC 61850 standard. The project includes implementing a complete and secure Cooper Power Systems substation automation solution that is based on SMP Gateway data concentrators, SMP I/O input/output discrete modular units, SMP 16/SP substation-grade computers and the Yukon Visual T&D HMI system. The SMP Gateways will be used as bay controllers and data concentrators at the substation level for a complete and secure integration of substation devices. The SMP I/Os will be used for integration and automation of each substation bay. Moreover, the SMP16/SP substation-grade computer, combined with Visual T&D software will provide a complete tool for local SCADA management with a substation single line diagram HMI. In order to replace traditional hardwiring, IEC 61850 GOOSE messaging will be used over the fiber-optic ethernet LAN installed in the substation. This solution architecture provides enhanced integration and reliability improvements as a result of the redundancy capability of all Cooper Power Systems equipment. ―Utilities are adopting IEC61850 for substation automation to help improve their interoperability and efficiency,‖ said Mike Stoessl, division president, Cooper Power Systems. ―Building on our existing 61850 offering, we’ve established a leadership position that allows us to help Manitoba Hydro improve its network management performance, achieve significant cost and time savings and realize improved reliability.‖ -More- Cooper Power Systems – Page 2 Editor’s Note: For additional information, contact Lauren Ban at (412) 394-6611 or lauren.ban@bm.com. About Manitoba Hydro Manitoba Hydro is a provincial Crown Corporation, providing electricity to 521,599 customers throughout the province and natural gas service to 261,159 customers in various communities. The corporation also imports and exports electricity within wholesale markets in Canada and mid-western United States. Manitoba Hydro offers its customers a wide range of energy services. In addition to providing electricity and natural gas, the corporation aggressively promotes energy conservation through its many Power Smart programs. Manitoba Hydro is also known nationally for its quality of service and reliability and is the only Canadian utility that participates as a member of an international transmission organization—the Midwest Independent System Operator. About Virelec Virelec was founded in 1995, as an independent Protection, Control and SCADA System company, providing panels and complete substation automation systems, with expertise in designing, assembling, programming and commissioning. Originally, Virelec recognizes that the technology in the substation protection and control systems was evolving rapidly from electromagnetic and static electronic devices to intelligent electronic devices (IED’s), and ensured that the company’s capabilities will provide expertise in the new technology. The utilities select various IED’s to ensure to provide the main demanding function, particular power system protection, and require the IED’s to communicate within the substation automation system; Virelec previously have integrated substation systems using Modbus and DNP3.0 protocols, and recently have completed IEC 61850 – based substation automation system and providing in two more IEC 61850 projects. Further, Virelec is a leading in supplying complete protection and control houses with including all the accessories, pre-set and commissioning ready for delivered to the substation site. 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 www.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. With this broad range of products, Cooper is uniquely positioned for several longterm 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 end-markets 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. ### 2