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Firm helps ETT energize the largest U.S. battery storage facility

EPC contractor designs housing for battery storage system

FOR IMMEDIATE RELEASE: May 21, 2010

HOUSTON — As a pioneer of the sodium-sulfur NAS battery system, Electric Transmission Texas, LLC (ETT) — a joint venture between subsidiaries of American Electric Power and MidAmerican Energy Holdings Co. — energized the nation's largest battery storage facility in March 2010, in time to meet increased peak summer demand. The quick-responding, 4-MW sodium-sulfur NAS battery system can address voltage fluctuations and momentary outages with an uninterrupted, eight-hour power supply and the ability to receive electricity from Mexico's Comisiûn Federal de Electricidad (CFE) in an emergency. To protect the battery storage system from the extreme weather conditions in Presidio, Texas — heavy winds, dust and extreme temperatures up to 120 degrees Fahrenheit — project engineer-procure-construct contractor Burns & McDonnell designed and constructed a facility to house the battery storage system in addition to designing the adjacent substation. For this $25 million project, Burns & McDonnell also assisted in coordinating the integration of substation and battery equipment technologies.

About Burns & McDonnell

As the only firm in Engineering News-Record's top 100 to receive the honor of the PSMJ (Professional Services Management Journal) 2009 Premier Award for Client Satisfaction, Burns & McDonnell provides engineering, architecture, construction, environmental and consulting services to clients throughout North America and abroad from more than 20 offices throughout the U.S. Founded in 1898, Burns & McDonnell is 100 percent employee-owned by its 3,000 professionals and ranks the top 10 percent (#22) of Engineering News-Record's 2010 Top 500 Design Firms. Burns & McDonnell is an industry leader in several Engineering News-Record categories including electrical transmission and distribution and power, and the Houston Business Journal named Burns & McDonnell to its 2010 list of Largest Houston-Area Energy Engineering Firms and #1 on its 2010 list of Largest Houston-Area Civil and Structural Engineering Firms. In both 2009 and 2010, Texas Monthly named Burns & McDonnell one of the Best Companies to Work for in Texas.

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