Westinghouse Electric Co. and The Shaw Group have signed a contract to build two nuclear reactors in South Carolina, the second such contract won by the Westinghouse-Shaw team in the last six weeks and only the second nuclear deal signed in the U.S. since 1978.

The new plants would be built at the V.C. Summer Nuclear Station in Jenkinsville, S.C. for South Carolina Electric & Gas Company and state-owned utlity Santee Cooper,

In April, Monroeville-based Westinghouse and Shaw agreed to design and build two new reactors near Waynesboro, Ga.

Last year, the same team also signed contracts to build four new plants in China. Work there is underway.