[1] He assumed office in 2020 as the first Executive Secretary of the regional Organisation with the mandate of spearheading establishment of the East African Community Energy Union.

[4] Mabea holds a bachelor's degree in Geomatics and a Master of Business Administration both obtained from Jomo Kenyatta University of Agriculture and Technology.

[5] He was later appointed to the capacity building cluster committee of the Northern Corridor Integration Projects as representative from Geothermal Development Company under the Ministry of Energy, Kenya.

In 2014, he joined PriceWaterHouseCoopers first, as capital projects advisor[1] for the East Market and later as a senior consultant.

In 2020, the General Assembly of Energy Regulators Association of East Africa, appointed him as its first Executive Secretary[10] to work closely with the East African Community Secretariat and the national regulatory authorities to achieve the Energy Union.