Acciona Energía, a subsidiary of Acciona based in Madrid, is involved in the energy industry: the development and structuring of projects, engineering, construction, supply, operations, maintenance, asset management and management and sales of clean energy.

Milestones in its history include the installation in December 1994 of the first commercial wind farm in Spain on the Sierra del Perdón, next to Pamplona, Navarre, by the Energía Hidroeléctrica de Navarra, S.A. company, acquired by ACCIONA in 2003[3] and 2004,[4] and the KW Tarifa wind farm by the Alabe company, a subsidiary of ACCIONA, in 1995.

In 2009, it acquired more than two GW (gigawatts) of renewable assets as part of the operation agreed with the Enel electric group where ACCIONA stopped participating in Endesa.

This capacity is distributed between 16 countries in all five continents and in 2021 it produced a total of 24.5 terawatt-hours (TWh) of 100% renewable energy, equivalent to the electric consumption of 7.6 million homes.

This activity was primarily focused on green hydrogen, offshore wind power, innovative photovoltaic systems, smart bidirectional chargers for electric vehicles, circular economy, life extension of renewable assets, advanced O&M technologies and energy storage, among others.