Owned and operated by Nebraska Public Power District, Cooper Nuclear Station (CNS) is the largest single-unit electrical generator in the state of Nebraska. CNS generates 800 megawatts of electricity and accounts for roughly 25 percent of NPPD’s total annual generation.

Plant construction began in 1968, and the unit was put into commercial operation in July of 1974. In November 2010, CNS’ operating license was renewed, extending its commercial operation to 2034.

Located three miles south of Brownville in southeast Nebraska, the facility is named after natives Guy Cooper, Jr., and Guy Cooper, Sr., in recognition of their contributions to public power in Nebraska.

CNS employs approximately 750 full-time personnel.