Essential Energy is a state-owned electricity infrastructure company which owns, maintains and operates the electrical distribution networks for much of New South Wales, covering 95 percent of the state geography (and some neighbouring parts of Queensland). It also owns the reticulated water network in Broken Hill through Essential Water, formerly Australian Inland Energy and Water.

Essential Energy was formed from the previously state-owned energy business, Country Energy, when the retail division of the company, along with the Country Energy brand, was sold by the NSW Government in 2011 to Origin Energy.