Integral Energy was the second largest state-owned energy corporation in New South Wales, incorporated under the 1995 from a merger between Prospect Electricity and Illawarra Electricity. Integral Energy was involved in electricity retail in addition to owning an electricity distribution network and previously held licences to retail electricity in the contestable markets covered by the NEM (National Electricity Market). The CEO was Vince Graham (formerly of RailCorp), who replaced Richard Powis on 7 April 2008.