EnergyAustralia has origins over 100 years old, and was formed after a merger in 1996 between Orion Energy (formerly Shortland Electricity and Shortland County Council) and Sydney Electricity (formerly Sydney County Council, Mackellar County Council and St George County Council).
EnergyAustralia memiliki sejarah lebih dari 100 tahun, dan dibentuk setelah penggabungan tahun 1996 antara Orion Energy (sebelumnya Shortland Electricity dan Shortland County Council) dan Sydney Electricity (sebelumnya Sydney County Council, Mackellar County Council dan St George County Council).