April 29, 2010
Norcross, Georgia — NAC International (NAC) announced today a new order from Arizona Public Service Company, operating agent of the Palo Verde Nuclear Generating Station (PVNGS), for twenty (20) UMS multipurpose dry spent fuel storage systems. This order will provide additional UMS spent fuel storage capacity at PVNGS while the plant transitions to the use of NAC’s latest dry storage technology, the MAGNASTOR® System. The new order will make PVNGS the first operating nuclear plant to utilize more than 100 UMS systems.

"This is an important milestone for Palo Verde and for NAC,” said Kent Cole, NAC president. “This order is a result of both the excellent working relationship with the Palo Verde staff and management, and the successful execution of previous UMS orders with respect to budget and schedule. With a suite of innovative technologies, we believe we are well positioned in a growing market, particularly as the requirements for expanded spent fuel storage have escalated.”

Palo Verde placed its first order for 25 UMS units in April 1999. Since that time, it has ordered an additional 59 units. With this new order of 20 units, Palo Verde will have purchased 104 units. Currently, more than 70 UMS units have been safely loaded and are in storage at the station’s independent spent fuel storage installation (ISFSI). Delivery of the new order of UMS canisters and concrete casks will follow in close succession with the completion of the loading of the systems previously ordered. Hardware deliveries and cask construction from the new order are scheduled to be completed in 2012.

NAC's UMS dry storage technology like that used at Palo Verde has been very successful in serving the needs of the nuclear industry. Currently, more than 200 UMS dry multipurpose storage systems have been ordered, delivered and constructed globally, and more than 170 have been loaded and placed into storage. For all of NAC’s multipurpose canister system storage technologies, and including contracts resulting from recent commitments, more than 400 NAC systems have been ordered. Currently, more than 260 of these have been fabricated, constructed and delivered to utilities. More than 230 of these systems are loaded with spent fuel and deployed at ISFSIs at U.S. reactors, representing about 30 percent of the multipurpose canister systems at reactor sites in the United States.

NAC is a diversified company specializing in nuclear fuel transport, spent fuel management technology and fuel cycle consulting. Since 1968, NAC has been a leader in providing solutions and services to the nuclear industry throughout the world, working with both government and commercial organizations. NAC maintains its corporate headquarters in Norcross, Ga. and has international offices in Moscow, London and Tokyo. NAC is a subsidiary of USEC Inc. (NYSE: USU), a leading supplier of enriched uranium fuel for commercial nuclear power plants.