The Renewable Energy and Energy Efficiency (REEE) Sector in Nigeria has evolved over the years and the increasing number of actors started in the 1980s to organize themselves in various associations and societies to improve networking in the sector and to represent their common interests.

In 2017, the Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ) GmBH conducted a study of existing associations in the Renewable Energy and Energy Efficiency sector within their Nigerian Energy Support Project (NESP). The major conclusion of the study was the need to overcome the fragmented structures in the sector and to foster the collaboration between the different organizations.

Consequently, GIZ NESP conducted two stakeholder workshops in which the involved organizations decided on founding a joint body under the name Renewable Energy and Energy Efficiency Associations (REEEA) Alliance. 

REEEA-A was officially registered in September 2020 by its founding members the Association of Energy Engineers (AEE), the Council for Renewable Energy of Nigeria (CREN), Renewable Energy Association of Nigeria (REAN), the Renewable and Alternative Energy Society of Nigeria (RAESON), and the Sustainable Energy Practitioners Association of Nigeria (SEPAN).

Soon after the foundation the Women in Renewable Energies Association (WIRE-A) joined the Alliance. Since its establishment the REEEA Alliance has set-up a professional structure for governance and management of the Alliance.

Since its foundation the Alliance has established itself as in important voice of the sector representing common interests of its members in various committees and events, and fosters networking within the sector and forms partnerships to improve framework conditions for the energy transition process.