Duane Arnold Nuclear Power Plant

A Duane Arnold Energy Center worker walks past a monitor with a view of the nuclear reactor's core at the Duane Arnold Energy Center near Palo, Iowa, April 7, 2003. The majority owner of Iowa's only nuclear power plant announced Wednesday, Dec. 22, 2004, that it plans to sell its stake in the Duane Arnold Energy Center. Iowa Power and Light Co., a subsidiary of Madison, Wis.-based Alliant Energy Corp., owns 70 percent of the plant.