sentences:  For example, in November 1996 BGA, Inc., formerly a privately held, regional energy performance contracting and consulting company was acquired by TECO Energy, and in 2004 was acquired by Chevron Corporation.In 1998, BGA entered the District Energy Plant business, completing construction on the first 3rd-party owned and operated district cooling plant in Florida.In the wake of the Enron collapse in 2001, and the sputtering or reverse of deregulation efforts, many utilities shut down or sold their energy services businesses.