RAERESA was officially launched on 16 March 2009 and came officially into existence with the signing of its Constitution by seven national energy regulators from COMESA Member States, namely:

1. Egypt
2. Ethiopia
3.  Kenya
4. Madagascar
5. Malawi
6. Rwanda and
7. Sudan

Currently, as at April 2022, RAERESA has 14 Full Members and 5 Associate Members.

Full Members of RAERESA:

1. Authority of Regulation of Water and Energy Sectors (AREEN) of the Republic of Burundi;
2. Regulatory Authority of Electricity Sector (l’Autorité de Regulation du secteur de l’électricité) (ARE) of the Democratic Republic of Congo (DRC);
3. Electric Utility and Consumer Protection Regulatory Agency of the Arab Republic of Egypt;
4. Energy Regulatory Authority of the Federal Democratic Republic of Ethiopia;
5. Energy and Petroleum Regulatory Authority of the Republic of Kenya;
6. Electricity Regulation Office of the Republic of Madagascar;
7. Malawi Energy Regulatory Authority of the Republic of Malawi;
8. The Utility Regulatory Authority of the Republic of Mauritius;
9. Rwanda Utilities Regulatory Authority of the Republic of Rwanda;
10. Seychelles Energy Commission of the Republic of Seychelles;
11. Electricity Regulatory Authority of the Republic of Sudan;
12. Electricity Regulatory Authority of the Republic of Uganda; and
13. Energy Regulation Board of the Republic of Zambia.
14. Zimbabwe Energy Regulatory Authority of the Republic of Zimbabwe

 Associate Members of RAERESA:

Associate Members of RAERESA are those COMESA Member States which have not yet established an energy regulator. Those include the following: 

1. Republic Comoros
2. Republic of Eritrea
3. Republic of Libya
4. Republic of Somalia
5. Republic of Tunisia

Observers Member of RAERESA

1. The Republic of Djibouti.
2. The Kingdom of Eswatini

International Membership           

RAERESA is a member of the International Confederation of Energy Regulators (ICER).