Its responsibility is to generate, distribute and supply electricity to the civilian population of Gibraltar.

[1] In 1890, the Colonial Government of Gibraltar commissioned Welsh electrical engineer William Henry Preece (1834–1913) to "enquire into the propriety of introducing electric light" into the territory.

On 15 September 1896, construction of the King’s Bastion Power Station, based in the old King's Bastion, was started with the help of a loan raised under the Electric Light Ordinance of 1892.

The first demonstration of electric lighting in Gibraltar was conducted in April 1897.

[2] The Government of Gibraltar passed an act in the House of Assembly on 28 March 2003 to establish the Gibraltar Electricity Authority to regulate electricity supply for the civilian population.