sentences:  The town is home to the Springfield Isotopes, an AA minor league baseball team which plays its home games at Duff Stadium; the Springfield Atoms football team at Springfield Stadium; the NBA's Springfield Excitement (formerly the Austin Celtics); and the Springfield Ice-O-Topes hockey team at the Springfield Arena.The Springfield Nuclear Power Plant is a nuclear power plant in Springfield owned by Charles Montgomery Burns.Opened in 1974, the plant is the key supplier of the city of Springfield's energy supply, and the carelessness of Mr. Burns and the plant's employees (like Homer, who is employed at Sector 7G) often endangers the residents and natural environment of Springfield.