[3] The station has been operational since 1980, and in 2010 underwent a major upgrade which saw the output capacity almost double thanks to a new combined cycle gas turbine (CCGT).

[5][6] In May 2010, the Minister for Foreign Affairs, Micheál Martin, officially opened a new combined cycle gas turbine at the plant.

[9] The upgrade was part of the ESB's portfolio restructuring programme, which included the closure and divestment of older and less efficient power stations.

[10] Following the upgrades, Aghada consists of the following four types of technology: In September 2022 the ESB announced that they were to submit a planning application with Cork County Council before the end of 2022 for the construction of a new open cycle gas turbine.

[needs update] The OCGT is to be within the existing grounds of Aghada power station and will be expected to generate 299 MW.