It was broken up into TransGrid, Delta Electricity, Eraring Energy and Macquarie Generation in between 1995 and 2003.
The consultancy division, Pacific Power International was acquired by Connell Wagner at the same time.
The Commission was established on 22 May 1950 by the Electricity Commission Act 1950 and its role was to take over power generation responsibility from the County Councils (such as the Sydney County Council) and the railways, who until that time were responsible for power generation and distribution.
At first, this involved completing the expansions of Bunnerong, White Bay, Balmain, and Pyrmont, and completing new stations already designed by the Department of Railways: Tallawarra near Port Kembla (1954), Wangi, at Lake Macquarie (1956), and Wallerawang, near Lithgow (1957).
In 2000, the remaining power stations were transferred to a new entity, Eraring Energy, and the consulting business sold to Connell Wagner.