On 25 October 1962, after returning to Ghana, Casely-Hayford joined the
Volta River Authority (VRA) as a Mechanical Engineer. His brilliance and tenacity of purpose propelled him through the ranks, from Mechanical Maintenance Engineer in 1964, Supervising Mechanical Maintenance Engineer in 1969, Acting Assistant Director of Power Operations in 1971 and confirmed assistant director of Power Operations (Generating and Plant Maintenance) in 1972. In 1974, he was appointed acting Director of Engineering and confirmed as Director of Engineering in 1975. In 1977, he was appointed acting Deputy Chief Executive and confirmed the same year as Deputy Chief Executive. On 22 June 1980, he was appointed Chief Executive of the Volta River Authority. After a long and productive service, he retired from the VRA on 31 December 1990. He continued to serve the nation in various capacities until his transition. He accumulated a lot of knowledge and experience by travelling to many power installations worldwide, including visits to the
Hitachi Works in
Japan in 1969 and the
Snowy Mountains Engineering Corporation in
Australia in 1976 to review the draft feasibility study report on the
Bui Hydro Electric Project. As chief executive officer of the VRA, he focused on man-power and leadership development. He created the VRA Training School that trained engineers, technicians and other disciplines needed to support the power sector. Casely-Hayford was the brain behind the extension of power to the Northern sector of the country and the transformation of
Akosombo Township. Casely-Hayford travelled extensively to canvass support and financing for the construction of a second hydroelectric project in Ghana. And having secured the funds, he oversaw the construction of the
Kpong Generating Station and associated irrigation system. He was the brain behind the extension of power to the Northern sector of Ghana at a time that many in the world's international financial institutions and some of his own colleagues thought the scheme would be impossible because of various challenges facing the country's
Northern Region. This project laid the infrastructural foundation for the pursuit of a truly national electrification vision. == Technological knowledge ==